Add dependency checks to Makefile.

Avoid unfortunate things like breaking the library because the make file
was not previously checking dependencies.

Change-Id: Iab20c3cfa0d1475dfb5c54127646b351df1c4c50

.gitattributes

@@ -0,0 +1,4 @@
+*.sln           eol=crlf
+*.vcproj        eol=crlf
+*.vsprops       eol=crlf
+*.vcxproj       eol=crlf

.gitignore

@@ -2,6 +2,7 @@
 *.MKV
 core
 *.a
+*.d
 *.so*
 *.o
 *~
@@ -12,4 +13,11 @@ core
 *.exe
 *.webm
 Debug
-Release
+Release
+*.sdf
+*.opensdf
+ipch
+dumpvtt
+sample
+samplemuxer
+vttdemux

Android.mk

@@ -1,13 +1,10 @@
 LOCAL_PATH:= $(call my-dir)
 
 include $(CLEAR_VARS)
-LOCAL_MODULE:= libmkvparser
+LOCAL_MODULE:= libwebm
 LOCAL_SRC_FILES:= mkvparser.cpp \
-                  mkvreader.cpp
+                  mkvreader.cpp \
+                  mkvmuxer.cpp \
+                  mkvmuxerutil.cpp \
+                  mkvwriter.cpp
 include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE:= mkvparser
-LOCAL_SRC_FILES:= sample.cpp
-LOCAL_STATIC_LIBRARIES:= libmkvparser
-include $(BUILD_EXECUTABLE)

Makefile

@@ -1,25 +1,53 @@
-CXX      := g++
-CXXFLAGS := -W -Wall -g
-LIBWEBM  := libwebm.a
-WEBMOBJS := mkvparser.o mkvreader.o mkvmuxer.o mkvmuxerutil.o mkvwriter.o
-OBJECTS1 := $(PARSEOBJ) sample.o
-OBJECTS2 := $(PARSEOBJ) $(MUXEROBJ) sample_muxer/sample_muxer.o
-INCLUDES := -I.
-EXES     := samplemuxer sample
+CXX       := g++
+CXXFLAGS  := -W -Wall -g -MMD -MP
+LIBWEBMA  := libwebm.a
+LIBWEBMSO := libwebm.so
+WEBMOBJS  := mkvparser.o mkvreader.o mkvmuxer.o mkvmuxerutil.o mkvwriter.o
+OBJSA     := $(WEBMOBJS:.o=_a.o)
+OBJSSO    := $(WEBMOBJS:.o=_so.o)
+OBJECTS1  := sample.o
+OBJECTS2  := sample_muxer.o vttreader.o webvttparser.o sample_muxer_metadata.o
+OBJECTS3  := dumpvtt.o vttreader.o webvttparser.o
+OBJECTS4  := vttdemux.o webvttparser.o
+INCLUDES  := -I.
+DEPS      := $(WEBMOBJS:.o=.d) $(OBJECTS1:.o=.d) $(OBJECTS2:.o=.d)
+DEPS      += $(OBJECTS3:.o=.d) $(OBJECTS4:.o=.d)
+EXES      := samplemuxer sample dumpvtt vttdemux
 
 all: $(EXES)
 
-sample: sample.o $(LIBWEBM)
+sample: sample.o $(LIBWEBMA)
 	$(CXX) $^ -o $@
 
-samplemuxer: sample_muxer/sample_muxer.o $(LIBWEBM)
+samplemuxer: $(OBJECTS2) $(LIBWEBMA)
 	$(CXX) $^ -o $@
 
-libwebm.a: $(WEBMOBJS)
+dumpvtt: $(OBJECTS3)
+	$(CXX) $^ -o $@
+
+shared: $(LIBWEBMSO)
+
+vttdemux: $(OBJECTS4) $(LIBWEBMA)
+	$(CXX) $^ -o $@
+
+libwebm.a: $(OBJSA)
 	$(AR) rcs $@ $^
 
+libwebm.so: $(OBJSSO)
+	$(CXX) $(CXXFLAGS) -shared $(OBJSSO) -o $(LIBWEBMSO)
+
 %.o: %.cpp
 	$(CXX) -c $(CXXFLAGS) $(INCLUDES) $< -o $@
 
+%_a.o: %.cpp
+	$(CXX) -c $(CXXFLAGS) $(INCLUDES) $< -o $@
+
+%_so.o: %.cpp
+	$(CXX) -c $(CXXFLAGS) -fPIC $(INCLUDES) $< -o $@
+
 clean:
-	$(RM) -f $(OBJECTS1) $(OBJECTS2) $(WEBMOBJS) $(LIBWEBM) $(EXES) Makefile.bak
+	$(RM) -f $(OBJECTS1) $(OBJECTS2) $(OBJECTS3) $(OBJECTS4) $(OBJSA) $(OBJSSO) $(LIBWEBMA) $(LIBWEBMSO) $(EXES) $(DEPS) Makefile.bak
+
+ifneq ($(MAKECMDGOALS), clean)
+  -include $(DEPS)
+endif

dumpvtt.cc

@@ -0,0 +1,98 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#include <cstdio>
+#include <cstdlib>
+#include "./vttreader.h"
+#include "./webvttparser.h"
+
+int main(int argc, const char* argv[]) {
+  if (argc != 2) {
+    fprintf(stdout, "usage: dumpvtt <vtt file>\n");
+    return EXIT_SUCCESS;
+  }
+
+  libwebvtt::VttReader reader;
+  const char* const filename = argv[1];
+
+  if (int e = reader.Open(filename)) {
+    (void)e;
+    fprintf(stderr, "open failed\n");
+    return EXIT_FAILURE;
+  }
+
+  libwebvtt::Parser parser(&reader);
+
+  if (int e = parser.Init()) {
+    (void)e;
+    fprintf(stderr, "parser init failed\n");
+    return EXIT_FAILURE;
+  }
+
+  for (libwebvtt::Cue cue;;) {
+    const int e = parser.Parse(&cue);
+
+    if (e < 0) {  // error
+      fprintf(stderr, "error parsing cue\n");
+      return EXIT_FAILURE;
+    }
+
+    if (e > 0)  // EOF
+      return EXIT_SUCCESS;
+
+    fprintf(stdout, "cue identifier: \"%s\"\n", cue.identifier.c_str());
+
+    const libwebvtt::Time& st = cue.start_time;
+    fprintf(stdout, "cue start time: \"HH=%i MM=%i SS=%i SSS=%i\"\n",
+            st.hours,
+            st.minutes,
+            st.seconds,
+            st.milliseconds);
+
+    const libwebvtt::Time& sp = cue.stop_time;
+    fprintf(stdout, "cue stop time: \"HH=%i MM=%i SS=%i SSS=%i\"\n",
+            sp.hours,
+            sp.minutes,
+            sp.seconds,
+            sp.milliseconds);
+
+    {
+      typedef libwebvtt::Cue::settings_t::const_iterator iter_t;
+      iter_t i = cue.settings.begin();
+      const iter_t j = cue.settings.end();
+
+      if (i == j) {
+        fprintf(stdout, "cue setting: <no settings present>\n");
+      } else {
+        while (i != j) {
+          const libwebvtt::Setting& setting = *i++;
+          fprintf(stdout, "cue setting: name=%s value=%s\n",
+                  setting.name.c_str(),
+                  setting.value.c_str());
+        }
+      }
+    }
+
+    {
+      typedef libwebvtt::Cue::payload_t::const_iterator iter_t;
+      iter_t i = cue.payload.begin();
+      const iter_t j = cue.payload.end();
+
+      int idx = 1;
+      while (i != j) {
+        const std::string& payload = *i++;
+        const char* const payload_str = payload.c_str();
+        fprintf(stdout, "cue payload[%i]: \"%s\"\n", idx, payload_str);
+        ++idx;
+      }
+    }
+
+    fprintf(stdout, "\n");
+    fflush(stdout);
+  }
+}

libwebm_2005.sln

@@ -1,37 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 9.00
-# Visual Studio 2005
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libwebm", "libwebm_2005.vcproj", "{F9128EC6-C008-41AD-B38F-0E70D549D9F4}"
-	ProjectSection(WebsiteProperties) = preProject
-		Debug.AspNetCompiler.Debug = "True"
-		Release.AspNetCompiler.Debug = "False"
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample", "sample_2005.vcproj", "{0CB5681F-6065-490C-98C8-05531732ED7E}"
-	ProjectSection(ProjectDependencies) = postProject
-		{F9128EC6-C008-41AD-B38F-0E70D549D9F4} = {F9128EC6-C008-41AD-B38F-0E70D549D9F4}
-	EndProjectSection
-	ProjectSection(WebsiteProperties) = preProject
-		Debug.AspNetCompiler.Debug = "True"
-		Release.AspNetCompiler.Debug = "False"
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{F9128EC6-C008-41AD-B38F-0E70D549D9F4}.Debug|Win32.ActiveCfg = Debug|Win32
-		{F9128EC6-C008-41AD-B38F-0E70D549D9F4}.Debug|Win32.Build.0 = Debug|Win32
-		{F9128EC6-C008-41AD-B38F-0E70D549D9F4}.Release|Win32.ActiveCfg = Release|Win32
-		{F9128EC6-C008-41AD-B38F-0E70D549D9F4}.Release|Win32.Build.0 = Release|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.ActiveCfg = Debug|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.Build.0 = Debug|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.ActiveCfg = Release|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal

libwebm_2005.vcproj

@@ -1,204 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="8.00"
-	Name="libwebm"
-	ProjectGUID="{F9128EC6-C008-41AD-B38F-0E70D549D9F4}"
-	RootNamespace="mkvparser"
-	Keyword="Win32Proj"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			UseOfMFC="0"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
-				MinimalRebuild="false"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="1"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			CharacterSet="1"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
-				RuntimeLibrary="0"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="1"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\mkvmuxerutil.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvparser.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvreader.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvwriter.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\mkvmuxer.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvmuxertypes.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvmuxerutil.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvparser.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvreader.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvwriter.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\webmids.hpp"
-				>
-			</File>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

libwebm_2008.sln

@@ -1,38 +1,38 @@
-
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual Studio 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample", "sample_2008.vcproj", "{0CB5681F-6065-490C-98C8-05531732ED7E}"
-	ProjectSection(ProjectDependencies) = postProject
-		{7B1F12CA-0724-430B-B61A-1D357C912CBA} = {7B1F12CA-0724-430B-B61A-1D357C912CBA}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libwebm", "libwebm_2008.vcproj", "{7B1F12CA-0724-430B-B61A-1D357C912CBA}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample_muxer", "sample_muxer\sample_muxer.vcproj", "{B407561F-1F5E-4798-B9C2-81AB09CFBC16}"
-	ProjectSection(ProjectDependencies) = postProject
-		{7B1F12CA-0724-430B-B61A-1D357C912CBA} = {7B1F12CA-0724-430B-B61A-1D357C912CBA}
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.ActiveCfg = Debug|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.Build.0 = Debug|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.ActiveCfg = Release|Win32
-		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.Build.0 = Release|Win32
-		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug|Win32.ActiveCfg = Debug|Win32
-		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug|Win32.Build.0 = Debug|Win32
-		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release|Win32.ActiveCfg = Release|Win32
-		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release|Win32.Build.0 = Release|Win32
-		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug|Win32.ActiveCfg = Debug|Win32
-		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug|Win32.Build.0 = Debug|Win32
-		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release|Win32.ActiveCfg = Release|Win32
-		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release|Win32.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
+
+Microsoft Visual Studio Solution File, Format Version 10.00
+# Visual Studio 2008
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample", "sample_2008.vcproj", "{0CB5681F-6065-490C-98C8-05531732ED7E}"
+	ProjectSection(ProjectDependencies) = postProject
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA} = {7B1F12CA-0724-430B-B61A-1D357C912CBA}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libwebm", "libwebm_2008.vcproj", "{7B1F12CA-0724-430B-B61A-1D357C912CBA}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample_muxer", "sample_muxer_2008.vcproj", "{B407561F-1F5E-4798-B9C2-81AB09CFBC16}"
+	ProjectSection(ProjectDependencies) = postProject
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA} = {7B1F12CA-0724-430B-B61A-1D357C912CBA}
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.ActiveCfg = Debug|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.Build.0 = Debug|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.ActiveCfg = Release|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.Build.0 = Release|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug|Win32.ActiveCfg = Debug|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug|Win32.Build.0 = Debug|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release|Win32.ActiveCfg = Release|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release|Win32.Build.0 = Release|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug|Win32.ActiveCfg = Debug|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug|Win32.Build.0 = Debug|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release|Win32.ActiveCfg = Release|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release|Win32.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

libwebm_2008.vcproj

@@ -1,209 +1,210 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9.00"
-	Name="libwebm"
-	ProjectGUID="{7B1F12CA-0724-430B-B61A-1D357C912CBA}"
-	RootNamespace="libwebm"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
-				MinimalRebuild="false"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				DebugInformationFormat="1"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
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-				Name="VCXDCMakeTool"
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-				Name="VCBscMakeTool"
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-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			CharacterSet="1"
-			WholeProgramOptimization="1"
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-			<Tool
-				Name="VCPreBuildEventTool"
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-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="2"
-				EnableIntrinsicFunctions="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
-				RuntimeLibrary="0"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				DebugInformationFormat="1"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
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-				>
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-			<File
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-			<File
-				RelativePath=".\mkvreader.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvwriter.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\mkvmuxer.hpp"
-				>
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-			<File
-				RelativePath=".\mkvmuxertypes.hpp"
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-			<File
-				RelativePath=".\mkvmuxerutil.hpp"
-				>
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-			<File
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-			</File>
-			<File
-				RelativePath=".\mkvreader.hpp"
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-			<File
-				RelativePath=".\mkvwriter.hpp"
-				>
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-			<File
-				RelativePath=".\webmids.hpp"
-				>
-			</File>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="libwebm"
+	ProjectGUID="{7B1F12CA-0724-430B-B61A-1D357C912CBA}"
+	RootNamespace="libwebm"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(ProjectDir)..\lib\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(ProjectDir)..\obj\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="4"
+			CharacterSet="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
+				MinimalRebuild="false"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="1"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="1"
+				DisableSpecificWarnings="4996"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(ProjectDir)..\lib\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(ProjectDir)..\obj\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="4"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
+			>
+			<File
+				RelativePath=".\mkvmuxer.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvmuxerutil.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvparser.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvreader.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvwriter.cpp"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
+			>
+			<File
+				RelativePath=".\mkvmuxer.hpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvmuxertypes.hpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvmuxerutil.hpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvparser.hpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvreader.hpp"
+				>
+			</File>
+			<File
+				RelativePath=".\mkvwriter.hpp"
+				>
+			</File>
+			<File
+				RelativePath=".\webmids.hpp"
+				>
+			</File>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>

libwebm_2010.sln

@@ -0,0 +1,46 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample", "sample_2010.vcxproj", "{0CB5681F-6065-490C-98C8-05531732ED7E}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libwebm", "libwebm_2010.vcxproj", "{7B1F12CA-0724-430B-B61A-1D357C912CBA}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample_muxer", "sample_muxer_2010.vcxproj", "{B407561F-1F5E-4798-B9C2-81AB09CFBC16}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug DLL|Win32 = Debug DLL|Win32
+		Debug|Win32 = Debug|Win32
+		Release DLL|Win32 = Release DLL|Win32
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug DLL|Win32.ActiveCfg = Debug DLL|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug DLL|Win32.Build.0 = Debug DLL|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.ActiveCfg = Debug|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Debug|Win32.Build.0 = Debug|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release DLL|Win32.ActiveCfg = Release DLL|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release DLL|Win32.Build.0 = Release DLL|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.ActiveCfg = Release|Win32
+		{0CB5681F-6065-490C-98C8-05531732ED7E}.Release|Win32.Build.0 = Release|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug DLL|Win32.ActiveCfg = Debug DLL|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug DLL|Win32.Build.0 = Debug DLL|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug|Win32.ActiveCfg = Debug|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Debug|Win32.Build.0 = Debug|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release DLL|Win32.ActiveCfg = Release DLL|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release DLL|Win32.Build.0 = Release DLL|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release|Win32.ActiveCfg = Release|Win32
+		{7B1F12CA-0724-430B-B61A-1D357C912CBA}.Release|Win32.Build.0 = Release|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug DLL|Win32.ActiveCfg = Debug DLL|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug DLL|Win32.Build.0 = Debug DLL|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug|Win32.ActiveCfg = Debug|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Debug|Win32.Build.0 = Debug|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release DLL|Win32.ActiveCfg = Release DLL|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release DLL|Win32.Build.0 = Release DLL|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release|Win32.ActiveCfg = Release|Win32
+		{B407561F-1F5E-4798-B9C2-81AB09CFBC16}.Release|Win32.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

libwebm_2010.vcxproj

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+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug DLL|Win32">
+      <Configuration>Debug DLL</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release DLL|Win32">
+      <Configuration>Release DLL</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
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+  <PropertyGroup Label="Globals">
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+    <ProjectGuid>{7B1F12CA-0724-430B-B61A-1D357C912CBA}</ProjectGuid>
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+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">$(ProjectDir)..\lib\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\lib\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\lib\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
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+  <ItemGroup>
+    <ClCompile Include="mkvmuxer.cpp" />
+    <ClCompile Include="mkvmuxerutil.cpp" />
+    <ClCompile Include="mkvparser.cpp" />
+    <ClCompile Include="mkvreader.cpp" />
+    <ClCompile Include="mkvwriter.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="mkvmuxer.hpp" />
+    <ClInclude Include="mkvmuxertypes.hpp" />
+    <ClInclude Include="mkvmuxerutil.hpp" />
+    <ClInclude Include="mkvparser.hpp" />
+    <ClInclude Include="mkvreader.hpp" />
+    <ClInclude Include="mkvwriter.hpp" />
+    <ClInclude Include="webmids.hpp" />
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
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+</Project>

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+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="mkvparser.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="mkvreader.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="mkvwriter.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="webmids.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>

mkvmuxer.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
@@ -14,9 +14,14 @@
 // For a description of the WebM elements see
 // http://www.webmproject.org/code/specs/container/.
 
+namespace mkvparser {
+  class IMkvReader;
+}  // end namespace
+
 namespace mkvmuxer {
 
 class MkvWriter;
+class Segment;
 
 ///////////////////////////////////////////////////////////////
 // Interface used by the mkvmuxer to write out the Mkv data.
@@ -54,6 +59,10 @@ class IMkvWriter {
 // before any other libwebm writing functions are called.
 bool WriteEbmlHeader(IMkvWriter* writer);
 
+// Copies in Chunk from source to destination between the given byte positions
+bool ChunkedCopy(mkvparser::IMkvReader* source, IMkvWriter* dst,
+                 int64 start, int64 size);
+
 ///////////////////////////////////////////////////////////////
 // Class to hold data the will be written to a block.
 class Frame {
@@ -151,7 +160,10 @@ class Cues {
 
   // Returns the cue point by index. Returns NULL if there is no cue point
   // match.
-  const CuePoint* GetCueByIndex(int32 index) const;
+  CuePoint* GetCueByIndex(int32 index) const;
+
+  // Returns the total size of the Cues element
+  uint64 Size();
 
   // Output the Cues element to the writer. Returns true on success.
   bool Write(IMkvWriter* writer) const;
@@ -179,23 +191,49 @@ class Cues {
   LIBWEBM_DISALLOW_COPY_AND_ASSIGN(Cues);
 };
 
+///////////////////////////////////////////////////////////////
+// ContentEncAESSettings element
+class ContentEncAESSettings {
+ public:
+  enum {
+    kCTR = 1
+  };
+
+  ContentEncAESSettings();
+  ~ContentEncAESSettings() {}
+
+  // Returns the size in bytes for the ContentEncAESSettings element.
+  uint64 Size() const;
+
+  // Writes out the ContentEncAESSettings element to |writer|. Returns true on
+  // success.
+  bool Write(IMkvWriter* writer) const;
+
+  uint64 cipher_mode() const { return cipher_mode_; }
+
+ private:
+  // Returns the size in bytes for the payload of the ContentEncAESSettings
+  // element.
+  uint64 PayloadSize() const;
+
+  // Sub elements
+  uint64 cipher_mode_;
+
+  LIBWEBM_DISALLOW_COPY_AND_ASSIGN(ContentEncAESSettings);
+};
+
 ///////////////////////////////////////////////////////////////
 // ContentEncoding element
 // Elements used to describe if the track data has been encrypted or
 // compressed with zlib or header stripping.
-// Currently only whole frames can only be encrypted once with AES. This
-// dictates that ContentEncodingOrder will be 0, ContentEncodingScope will
-// be 1, ContentEncodingType will be 1, and ContentEncAlgo will be 5.
+// Currently only whole frames can be encrypted with AES. This dictates that
+// ContentEncodingOrder will be 0, ContentEncodingScope will be 1,
+// ContentEncodingType will be 1, and ContentEncAlgo will be 5.
 class ContentEncoding {
  public:
   ContentEncoding();
   ~ContentEncoding();
 
-  uint64 enc_algo() const { return enc_algo_; }
-  uint64 encoding_order() const { return encoding_order_; }
-  uint64 encoding_scope() const { return encoding_scope_; }
-  uint64 encoding_type() const { return encoding_type_; }
-
   // Sets the content encryption id. Copies |length| bytes from |id| to
   // |enc_key_id_|. Returns true on success.
   bool SetEncryptionID(const uint8* id, uint64 length);
@@ -207,6 +245,12 @@ class ContentEncoding {
   // success.
   bool Write(IMkvWriter* writer) const;
 
+  uint64 enc_algo() const { return enc_algo_; }
+  uint64 encoding_order() const { return encoding_order_; }
+  uint64 encoding_scope() const { return encoding_scope_; }
+  uint64 encoding_type() const { return encoding_type_; }
+  ContentEncAESSettings* enc_aes_settings() { return &enc_aes_settings_; }
+
  private:
   // Returns the size in bytes for the encoding elements.
   uint64 EncodingSize(uint64 compresion_size, uint64 encryption_size) const;
@@ -221,6 +265,9 @@ class ContentEncoding {
   uint64 encoding_scope_;
   uint64 encoding_type_;
 
+  // ContentEncAESSettings element.
+  ContentEncAESSettings enc_aes_settings_;
+
   // Size of the ContentEncKeyID data in bytes.
   uint64 enc_key_id_length_;
 
@@ -231,7 +278,8 @@ class ContentEncoding {
 // Track element.
 class Track {
  public:
-  Track();
+  // The |seed| parameter is used to synthesize a UID for the track.
+  explicit Track(unsigned int* seed);
   virtual ~Track();
 
   // Adds a ContentEncoding element to the Track. Returns true on success.
@@ -259,12 +307,17 @@ class Track {
   const uint8* codec_private() const { return codec_private_; }
   void set_language(const char* language);
   const char* language() const { return language_; }
+  void set_max_block_additional_id(uint64 max_block_additional_id) {
+    max_block_additional_id_ = max_block_additional_id;
+  }
+  uint64 max_block_additional_id() const { return max_block_additional_id_; }
   void set_name(const char* name);
   const char* name() const { return name_; }
   void set_number(uint64 number) { number_ = number; }
   uint64 number() const { return number_; }
   void set_type(uint64 type) { type_ = type; }
   uint64 type() const { return type_; }
+  void set_uid(uint64 uid) { uid_ = uid; }
   uint64 uid() const { return uid_; }
 
   uint64 codec_private_length() const { return codec_private_length_; }
@@ -273,17 +326,15 @@ class Track {
   }
 
  private:
-  // Returns a random number to be used for the Track UID.
-  static uint64 MakeUID();
-
   // Track element names
   char* codec_id_;
   uint8* codec_private_;
   char* language_;
+  uint64 max_block_additional_id_;
   char* name_;
   uint64 number_;
   uint64 type_;
-  const uint64 uid_;
+  uint64 uid_;
 
   // Size of the CodecPrivate data in bytes.
   uint64 codec_private_length_;
@@ -294,9 +345,6 @@ class Track {
   // Number of ContentEncoding elements added.
   uint32 content_encoding_entries_size_;
 
-  // Flag telling if the rand call was seeded.
-  static bool is_seeded_;
-
   LIBWEBM_DISALLOW_COPY_AND_ASSIGN(Track);
 };
 
@@ -313,7 +361,13 @@ class VideoTrack : public Track {
     kSideBySideRightIsFirst = 11
   };
 
-  VideoTrack();
+  enum AlphaMode {
+    kNoAlpha = 0,
+    kAlpha  = 1
+  };
+
+  // The |seed| parameter is used to synthesize a UID for the track.
+  explicit VideoTrack(unsigned int* seed);
   virtual ~VideoTrack();
 
   // Returns the size in bytes for the payload of the Track element plus the
@@ -326,6 +380,9 @@ class VideoTrack : public Track {
   // Sets the video's stereo mode. Returns true on success.
   bool SetStereoMode(uint64 stereo_mode);
 
+  // Sets the video's alpha mode. Returns true on success.
+  bool SetAlphaMode(uint64 alpha_mode);
+
   void set_display_height(uint64 height) { display_height_ = height; }
   uint64 display_height() const { return display_height_; }
   void set_display_width(uint64 width) { display_width_ = width; }
@@ -335,6 +392,7 @@ class VideoTrack : public Track {
   void set_height(uint64 height) { height_ = height; }
   uint64 height() const { return height_; }
   uint64 stereo_mode() { return stereo_mode_; }
+  uint64 alpha_mode() { return alpha_mode_; }
   void set_width(uint64 width) { width_ = width; }
   uint64 width() const { return width_; }
 
@@ -348,6 +406,7 @@ class VideoTrack : public Track {
   double frame_rate_;
   uint64 height_;
   uint64 stereo_mode_;
+  uint64 alpha_mode_;
   uint64 width_;
 
   LIBWEBM_DISALLOW_COPY_AND_ASSIGN(VideoTrack);
@@ -357,7 +416,8 @@ class VideoTrack : public Track {
 // Track that has audio specific elements.
 class AudioTrack : public Track {
  public:
-  AudioTrack();
+  // The |seed| parameter is used to synthesize a UID for the track.
+  explicit AudioTrack(unsigned int* seed);
   virtual ~AudioTrack();
 
   // Returns the size in bytes for the payload of the Track element plus the
@@ -433,6 +493,170 @@ class Tracks {
   LIBWEBM_DISALLOW_COPY_AND_ASSIGN(Tracks);
 };
 
+///////////////////////////////////////////////////////////////
+// Chapter element
+//
+class Chapter {
+ public:
+  // Set the identifier for this chapter.  (This corresponds to the
+  // Cue Identifier line in WebVTT.)
+  // TODO(matthewjheaney): the actual serialization of this item in
+  // MKV is pending.
+  bool set_id(const char* id);
+
+  // Converts the nanosecond start and stop times of this chapter to
+  // their corresponding timecode values, and stores them that way.
+  void set_time(const Segment& segment,
+                uint64 start_time_ns,
+                uint64 end_time_ns);
+
+  // Add a title string to this chapter, per the semantics described
+  // here:
+  //  http://www.matroska.org/technical/specs/index.html
+  //
+  // The title ("chapter string") is a UTF-8 string.
+  //
+  // The language has ISO 639-2 representation, described here:
+  //  http://www.loc.gov/standards/iso639-2/englangn.html
+  //  http://www.loc.gov/standards/iso639-2/php/English_list.php
+  // If you specify NULL as the language value, this implies
+  // English ("eng").
+  //
+  // The country value corresponds to the codes listed here:
+  //  http://www.iana.org/domains/root/db/
+  //
+  // The function returns false if the string could not be allocated.
+  bool add_string(const char* title,
+                  const char* language,
+                  const char* country);
+
+ private:
+  friend class Chapters;
+
+  // For storage of chapter titles that differ by language.
+  class Display {
+   public:
+    // Establish representation invariant for new Display object.
+    void Init();
+
+    // Reclaim resources, in anticipation of destruction.
+    void Clear();
+
+    // Copies the title to the |title_| member.  Returns false on
+    // error.
+    bool set_title(const char* title);
+
+    // Copies the language to the |language_| member.  Returns false
+    // on error.
+    bool set_language(const char* language);
+
+    // Copies the country to the |country_| member.  Returns false on
+    // error.
+    bool set_country(const char* country);
+
+    // If |writer| is non-NULL, serialize the Display sub-element of
+    // the Atom into the stream.  Returns the Display element size on
+    // success, 0 if error.
+    uint64 WriteDisplay(IMkvWriter* writer) const;
+
+   private:
+    char* title_;
+    char* language_;
+    char* country_;
+  };
+
+  Chapter();
+  ~Chapter();
+
+  // Establish the representation invariant for a newly-created
+  // Chapter object.  The |seed| parameter is used to create the UID
+  // for this chapter atom.
+  void Init(unsigned int* seed);
+
+  // Copies this Chapter object to a different one.  This is used when
+  // expanding a plain array of Chapter objects (see Chapters).
+  void ShallowCopy(Chapter* dst) const;
+
+  // Reclaim resources used by this Chapter object, pending its
+  // destruction.
+  void Clear();
+
+  // If there is no storage remaining on the |displays_| array for a
+  // new display object, creates a new, longer array and copies the
+  // existing Display objects to the new array.  Returns false if the
+  // array cannot be expanded.
+  bool ExpandDisplaysArray();
+
+  // If |writer| is non-NULL, serialize the Atom sub-element into the
+  // stream.  Returns the total size of the element on success, 0 if
+  // error.
+  uint64 WriteAtom(IMkvWriter* writer) const;
+
+  // The string identifier for this chapter (corresponds to WebVTT cue
+  // identifier).
+  char* id_;
+
+  // Start timecode of the chapter.
+  uint64 start_timecode_;
+
+  // Stop timecode of the chapter.
+  uint64 end_timecode_;
+
+  // The binary identifier for this chapter.
+  uint64 uid_;
+
+  // The Atom element can contain multiple Display sub-elements, as
+  // the same logical title can be rendered in different languages.
+  Display* displays_;
+
+  // The physical length (total size) of the |displays_| array.
+  int displays_size_;
+
+  // The logical length (number of active elements) on the |displays_|
+  // array.
+  int displays_count_;
+
+  LIBWEBM_DISALLOW_COPY_AND_ASSIGN(Chapter);
+};
+
+///////////////////////////////////////////////////////////////
+// Chapters element
+//
+class Chapters {
+ public:
+  Chapters();
+  ~Chapters();
+
+  Chapter* AddChapter(unsigned int* seed);
+
+  // Returns the number of chapters that have been added.
+  int Count() const;
+
+  // Output the Chapters element to the writer. Returns true on success.
+  bool Write(IMkvWriter* writer) const;
+
+ private:
+  // Expands the chapters_ array if there is not enough space to contain
+  // another chapter object.  Returns true on success.
+  bool ExpandChaptersArray();
+
+  // If |writer| is non-NULL, serialize the Edition sub-element of the
+  // Chapters element into the stream.  Returns the Edition element
+  // size on success, 0 if error.
+  uint64 WriteEdition(IMkvWriter* writer) const;
+
+  // Total length of the chapters_ array.
+  int chapters_size_;
+
+  // Number of active chapters on the chapters_ array.
+  int chapters_count_;
+
+  // Array for storage of chapter objects.
+  Chapter* chapters_;
+
+  LIBWEBM_DISALLOW_COPY_AND_ASSIGN(Chapters);
+};
+
 ///////////////////////////////////////////////////////////////
 // Cluster element
 //
@@ -454,15 +678,58 @@ class Cluster {
   //   frame: Pointer to the data
   //   length: Length of the data
   //   track_number: Track to add the data to. Value returned by Add track
-  //                 functions.
-  //   timestamp:    Timecode of the frame relative to the cluster timecode.
+  //                 functions.  The range of allowed values is [1, 126].
+  //   timecode:     Absolute (not relative to cluster) timestamp of the
+  //                 frame, expressed in timecode units.
   //   is_key:       Flag telling whether or not this frame is a key frame.
   bool AddFrame(const uint8* frame,
                 uint64 length,
                 uint64 track_number,
-                short timecode,
+                uint64 timecode,  // timecode units (absolute)
                 bool is_key);
 
+  // Adds a frame to be output in the file. The frame is written out through
+  // |writer_| if successful. Returns true on success.
+  // Inputs:
+  //   frame: Pointer to the data
+  //   length: Length of the data
+  //   additional: Pointer to the additional data
+  //   additional_length: Length of the additional data
+  //   add_id: Value of BlockAddID element
+  //   track_number: Track to add the data to. Value returned by Add track
+  //                 functions.  The range of allowed values is [1, 126].
+  //   abs_timecode: Absolute (not relative to cluster) timestamp of the
+  //                 frame, expressed in timecode units.
+  //   is_key:       Flag telling whether or not this frame is a key frame.
+  bool AddFrameWithAdditional(const uint8* frame,
+                              uint64 length,
+                              const uint8* additional,
+                              uint64 additional_length,
+                              uint64 add_id,
+                              uint64 track_number,
+                              uint64 abs_timecode,
+                              bool is_key);
+
+  // Writes a frame of metadata to the output medium; returns true on
+  // success.
+  // Inputs:
+  //   frame: Pointer to the data
+  //   length: Length of the data
+  //   track_number: Track to add the data to. Value returned by Add track
+  //                 functions.  The range of allowed values is [1, 126].
+  //   timecode:     Absolute (not relative to cluster) timestamp of the
+  //                 metadata frame, expressed in timecode units.
+  //   duration:     Duration of metadata frame, in timecode units.
+  //
+  // The metadata frame is written as a block group, with a duration
+  // sub-element but no reference time sub-elements (indicating that
+  // it is considered a keyframe, per Matroska semantics).
+  bool AddMetadata(const uint8* frame,
+                   uint64 length,
+                   uint64 track_number,
+                   uint64 timecode,  // timecode units (absolute)
+                   uint64 duration);  // timecode units
+
   // Increments the size of the cluster's data in bytes.
   void AddPayloadSize(uint64 size);
 
@@ -473,12 +740,53 @@ class Cluster {
   // Returns the size in bytes for the entire Cluster element.
   uint64 Size() const;
 
+  int64 size_position() const { return size_position_; }
   int32 blocks_added() const { return blocks_added_; }
   uint64 payload_size() const { return payload_size_; }
   int64 position_for_cues() const { return position_for_cues_; }
   uint64 timecode() const { return timecode_; }
 
  private:
+  //  Signature that matches either of WriteSimpleBlock or WriteMetadataBlock
+  //  in the muxer utilities package.
+  typedef uint64 (*WriteBlock)(IMkvWriter* writer,
+                               const uint8* data,
+                               uint64 length,
+                               uint64 track_number,
+                               int64 timecode,
+                               uint64 generic_arg);
+
+  //  Signature that matches WriteBlockWithAdditional
+  //  in the muxer utilities package.
+  typedef uint64 (*WriteBlockAdditional)(IMkvWriter* writer,
+                                         const uint8* data,
+                                         uint64 length,
+                                         const uint8* additional,
+                                         uint64 add_id,
+                                         uint64 additional_length,
+                                         uint64 track_number,
+                                         int64 timecode,
+                                         uint64 is_key);
+
+  //  Used to implement AddFrame and AddMetadata.
+  bool DoWriteBlock(const uint8* frame,
+                    uint64 length,
+                    uint64 track_number,
+                    uint64 absolute_timecode,
+                    uint64 generic_arg,
+                    WriteBlock write_block);
+
+  // Used to implement AddFrameWithAdditional
+  bool DoWriteBlockWithAdditional(const uint8* frame,
+                                  uint64 length,
+                                  const uint8* additional,
+                                  uint64 additional_length,
+                                  uint64 add_id,
+                                  uint64 track_number,
+                                  uint64 absolute_timecode,
+                                  uint64 generic_arg,
+                                  WriteBlockAdditional write_block);
+
   // Outputs the Cluster header to |writer_|. Returns true on success.
   bool WriteClusterHeader();
 
@@ -527,14 +835,26 @@ class SeekHead {
   // Writes out SeekHead and SeekEntry elements. Returns true on success.
   bool Finalize(IMkvWriter* writer) const;
 
+  // Returns the id of the Seek Entry at the given index. Returns -1 if index is
+  // out of range.
+  uint32 GetId(int index) const;
+
+  // Returns the position of the Seek Entry at the given index. Returns -1 if
+  // index is out of range.
+  uint64 GetPosition(int index) const;
+
+  // Sets the Seek Entry id and position at given index.
+  // Returns true on success.
+  bool SetSeekEntry(int index, uint32 id, uint64 position);
+
   // Reserves space by writing out a Void element which will be updated with
   // a SeekHead element later. Returns true on success.
   bool Write(IMkvWriter* writer);
 
- private:
-   // We are going to put a cap on the number of Seek Entries.
-  const static int32 kSeekEntryCount = 4;
+  // We are going to put a cap on the number of Seek Entries.
+  const static int32 kSeekEntryCount = 5;
 
+ private:
   // Returns the maximum size in bytes of one seek entry.
   uint64 MaxEntrySize() const;
 
@@ -569,6 +889,7 @@ class SegmentInfo {
 
   void set_duration(double duration) { duration_ = duration; }
   double duration() const { return duration_; }
+  void set_muxing_app(const char* app);
   const char* muxing_app() const { return muxing_app_; }
   void set_timecode_scale(uint64 scale) { timecode_scale_ = scale; }
   uint64 timecode_scale() const { return timecode_scale_; }
@@ -605,6 +926,11 @@ class Segment {
     kFile = 0x2
   };
 
+  enum CuesPosition {
+    kAfterClusters = 0x0,  // Position Cues after Clusters - Default
+    kBeforeClusters = 0x1  // Position Cues before Clusters
+  };
+
   const static uint64 kDefaultMaxClusterDuration = 30000000000ULL;
 
   Segment();
@@ -614,9 +940,12 @@ class Segment {
   // |ptr_writer| is NULL.
   bool Init(IMkvWriter* ptr_writer);
 
-  // Adds an audio track to the segment. Returns the number of the track on
-  // success, 0 on error.
-  uint64 AddAudioTrack(int32 sample_rate, int32 channels);
+  // Adds a generic track to the segment.  Returns the newly-allocated
+  // track object (which is owned by the segment) on success, NULL on
+  // error. |number| is the number to use for the track.  |number|
+  // must be >= 0. If |number| == 0 then the muxer will decide on the
+  // track number.
+  Track* AddTrack(int32 number);
 
   // Adds an audio track to the segment. Returns the number of the track on
   // success, 0 on error. |number| is the number to use for the audio track.
@@ -624,6 +953,17 @@ class Segment {
   // the track number.
   uint64 AddAudioTrack(int32 sample_rate, int32 channels, int32 number);
 
+  // Adds an empty chapter to the chapters of this segment.  Returns
+  // non-NULL on success.  After adding the chapter, the caller should
+  // populate its fields via the Chapter member functions.
+  Chapter* AddChapter();
+
+  // Adds a cue point to the Cues element. |timestamp| is the time in
+  // nanoseconds of the cue's time. |track| is the Track of the Cue. This
+  // function must be called after AddFrame to calculate the correct
+  // BlockNumber for the CuePoint. Returns true on success.
+  bool AddCuePoint(uint64 timestamp, uint64 track);
+
   // Adds a frame to be output in the file. Returns true on success.
   // Inputs:
   //   frame: Pointer to the data
@@ -635,12 +975,37 @@ class Segment {
   bool AddFrame(const uint8* frame,
                 uint64 length,
                 uint64 track_number,
-                uint64 timestamp,
+                uint64 timestamp_ns,
                 bool is_key);
 
-  // Adds a video track to the segment. Returns the number of the track on
-  // success, 0 on error.
-  uint64 AddVideoTrack(int32 width, int32 height);
+  // Writes a frame of metadata to the output medium; returns true on
+  // success.
+  // Inputs:
+  //   frame: Pointer to the data
+  //   length: Length of the data
+  //   track_number: Track to add the data to. Value returned by Add track
+  //                 functions.
+  //   timecode:     Absolute timestamp of the metadata frame, expressed
+  //                 in nanosecond units.
+  //   duration:     Duration of metadata frame, in nanosecond units.
+  //
+  // The metadata frame is written as a block group, with a duration
+  // sub-element but no reference time sub-elements (indicating that
+  // it is considered a keyframe, per Matroska semantics).
+  bool AddMetadata(const uint8* frame,
+                   uint64 length,
+                   uint64 track_number,
+                   uint64 timestamp_ns,
+                   uint64 duration_ns);
+
+  bool AddFrameWithAdditional(const uint8* frame,
+                              uint64 length,
+                              const uint8* additional,
+                              uint64 additional_length,
+                              uint64 add_id,
+                              uint64 track_number,
+                              uint64 timestamp,
+                              bool is_key);
 
   // Adds a video track to the segment. Returns the number of the track on
   // success, 0 on error. |number| is the number to use for the video track.
@@ -648,11 +1013,29 @@ class Segment {
   // the track number.
   uint64 AddVideoTrack(int32 width, int32 height, int32 number);
 
+  // This function must be called after Finalize() if you need a copy of the
+  // output with Cues written before the Clusters. It will return false if the
+  // writer is not seekable of if chunking is set to true.
+  // Input parameters:
+  // reader - an IMkvReader object created with the same underlying file of the
+  //          current writer object. Make sure to close the existing writer
+  //          object before creating this so that all the data is properly
+  //          flushed and available for reading.
+  // writer - an IMkvWriter object pointing to a *different* file than the one
+  //          pointed by the current writer object. This file will contain the
+  //          Cues element before the Clusters.
+  bool CopyAndMoveCuesBeforeClusters(mkvparser::IMkvReader* reader,
+                                     IMkvWriter* writer);
+
   // Sets which track to use for the Cues element. Must have added the track
   // before calling this function. Returns true on success. |track_number| is
   // returned by the Add track functions.
   bool CuesTrack(uint64 track_number);
 
+  // This will force the muxer to create a new Cluster when the next frame is
+  // added.
+  void ForceNewClusterOnNextFrame();
+
   // Writes out any frames that have not been written out. Finalizes the last
   // cluster. May update the size and duration of the segment. May output the
   // Cues element. May finalize the SeekHead element. Returns true on success.
@@ -662,6 +1045,7 @@ class Segment {
   Cues* GetCues() { return &cues_; }
 
   // Returns the Segment Information object.
+  const SegmentInfo* GetSegmentInfo() const { return &segment_info_; }
   SegmentInfo* GetSegmentInfo() { return &segment_info_; }
 
   // Search the Tracks and return the track that matches |track_number|.
@@ -694,14 +1078,11 @@ class Segment {
   uint64 max_cluster_size() const { return max_cluster_size_; }
   void set_mode(Mode mode) { mode_ = mode; }
   Mode mode() const { return mode_; }
+  CuesPosition cues_position() const { return cues_position_; }
   bool output_cues() const { return output_cues_; }
   const SegmentInfo* segment_info() const { return &segment_info_; }
 
  private:
-  // Adds a cue point to the Cues element. |timestamp| is the time in
-  // nanoseconds of the cue's time. Returns true on success.
-  bool AddCuePoint(uint64 timestamp);
-
   // Checks if header information has been output and initialized. If not it
   // will output the Segment element and initialize the SeekHead elment and
   // Cues elements.
@@ -720,9 +1101,9 @@ class Segment {
   // Adds the frame to our frame array.
   bool QueueFrame(Frame* frame);
 
-  // Output all frames that are queued. Returns true on success and if there
-  // are no frames queued.
-  bool WriteFramesAll();
+  // Output all frames that are queued. Returns -1 on error, otherwise
+  // it returns the number of frames written.
+  int WriteFramesAll();
 
   // Output all frames that are queued that have an end time that is less
   // then |timestamp|. Returns true on success and if there are no frames
@@ -733,11 +1114,49 @@ class Segment {
   // and Tracks element to |writer_|.
   bool WriteSegmentHeader();
 
+  // Given a frame with the specified timestamp (nanosecond units) and
+  // keyframe status, determine whether a new cluster should be
+  // created, before writing enqueued frames and the frame itself. The
+  // function returns one of the following values:
+  //  -1 = error: an out-of-order frame was detected
+  //  0 = do not create a new cluster, and write frame to the existing cluster
+  //  1 = create a new cluster, and write frame to that new cluster
+  //  2 = create a new cluster, and re-run test
+  int TestFrame(uint64 track_num, uint64 timestamp_ns, bool key) const;
+
+  // Create a new cluster, using the earlier of the first enqueued
+  // frame, or the indicated time. Returns true on success.
+  bool MakeNewCluster(uint64 timestamp_ns);
+
+  // Checks whether a new cluster needs to be created, and if so
+  // creates a new cluster. Returns false if creation of a new cluster
+  // was necessary but creation was not successful.
+  bool DoNewClusterProcessing(uint64 track_num, uint64 timestamp_ns, bool key);
+
+
+  // Adjusts Cue Point values (to place Cues before Clusters) so that they
+  // reflect the correct offsets.
+  void MoveCuesBeforeClusters();
+
+  // This function recursively computes the correct cluster offsets (this is
+  // done to move the Cues before Clusters). It recursively updates the change
+  // in size (which indicates a change in cluster offset) until no sizes change.
+  // Parameters:
+  // diff - indicates the difference in size of the Cues element that needs to
+  //        accounted for.
+  // index - index in the list of Cues which is currently being adjusted.
+  // cue_size - size of the Cues element.
+  void MoveCuesBeforeClustersHelper(uint64 diff, int index, uint64* cue_size);
+
+  // Seeds the random number generator used to make UIDs.
+  unsigned int seed_;
+
   // WebM elements
   Cues cues_;
   SeekHead seek_head_;
   SegmentInfo segment_info_;
   Tracks tracks_;
+  Chapters chapters_;
 
   // Number of chunks written.
   int chunk_count_;
@@ -764,6 +1183,9 @@ class Segment {
   // Base filename for the chunked files.
   char* chunking_base_name_;
 
+  // File position offset where the Clusters end.
+  int64 cluster_end_offset_;
+
   // List of clusters.
   Cluster** cluster_list_;
 
@@ -773,9 +1195,15 @@ class Segment {
   // Number of clusters in the cluster list.
   int32 cluster_list_size_;
 
+  // Indicates whether Cues should be written before or after Clusters
+  CuesPosition cues_position_;
+
   // Track number that is associated with the cues element for this segment.
   uint64 cues_track_;
 
+  // Tells the muxer to force a new cluster on the next Block.
+  bool force_new_cluster_;
+
   // List of stored audio frames. These variables are used to store frames so
   // the muxer can follow the guideline "Audio blocks that contain the video
   // key frame's timecode should be in the same cluster as the video key frame
@@ -811,10 +1239,6 @@ class Segment {
   // seek backwards.
   Mode mode_;
 
-  // Flag telling the muxer that a new cluster should be started with the next
-  // frame.
-  bool new_cluster_;
-
   // Flag telling the muxer that a new cue point should be added.
   bool new_cuepoint_;
 

mkvmuxertypes.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
@@ -19,6 +19,7 @@
 namespace mkvmuxer {
 
 typedef unsigned char      uint8;
+typedef short              int16;
 typedef int                int32;
 typedef unsigned int       uint32;
 typedef long long          int64;

mkvmuxerutil.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
@@ -8,11 +8,18 @@
 
 #include "mkvmuxerutil.hpp"
 
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
+#ifdef __ANDROID__
+#include <fcntl.h>
+#endif
+
+#include <cmath>
+#include <cstdio>
+#ifdef _WIN32
+#define _CRT_RAND_S
+#endif
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
 
 #include <new>
 
@@ -22,7 +29,6 @@
 namespace mkvmuxer {
 
 int32 GetCodedUIntSize(uint64 value) {
-
   if (value < 0x000000000000007FULL)
     return 1;
   else if (value < 0x0000000000003FFFULL)
@@ -41,7 +47,6 @@ int32 GetCodedUIntSize(uint64 value) {
 }
 
 int32 GetUIntSize(uint64 value) {
-
   if (value < 0x0000000000000100ULL)
     return 1;
   else if (value < 0x0000000000010000ULL)
@@ -82,12 +87,12 @@ uint64 EbmlElementSize(uint64 type, uint64 value) {
   return ebml_size;
 }
 
-uint64 EbmlElementSize(uint64 type, float value) {
+uint64 EbmlElementSize(uint64 type, float /* value */ ) {
   // Size of EBML ID
   uint64 ebml_size = GetUIntSize(type);
 
   // Datasize
-  ebml_size += sizeof(value);
+  ebml_size += sizeof(float);
 
   // Size of Datasize
   ebml_size++;
@@ -308,11 +313,28 @@ bool WriteEbmlElement(IMkvWriter* writer,
 uint64 WriteSimpleBlock(IMkvWriter* writer,
                         const uint8* data,
                         uint64 length,
-                        char track_number,
-                        short timecode,
-                        bool is_key) {
+                        uint64 track_number,
+                        int64 timecode,
+                        uint64 is_key) {
+  if (!writer)
+    return false;
 
-  if (!writer || !data || length < 1 || track_number < 1 || timecode < 0)
+  if (!data || length < 1)
+    return false;
+
+  //  Here we only permit track number values to be no greater than
+  //  126, which the largest value we can store having a Matroska
+  //  integer representation of only 1 byte.
+
+  if (track_number < 1 || track_number > 126)
+    return false;
+
+  //  Technically the timestamp for a block can be less than the
+  //  timestamp for the cluster itself (remember that block timestamp
+  //  is a signed, 16-bit integer).  However, as a simplification we
+  //  only permit non-negative cluster-relative timestamps for blocks.
+
+  if (timecode < 0 || timecode > kMaxBlockTimecode)
     return false;
 
   if (WriteID(writer, kMkvSimpleBlock))
@@ -325,11 +347,11 @@ uint64 WriteSimpleBlock(IMkvWriter* writer,
   if (WriteUInt(writer, static_cast<uint64>(track_number)))
     return 0;
 
-  if (SerializeInt(writer, static_cast<uint64>(timecode), 2))
+  if (SerializeInt(writer, timecode, 2))
     return 0;
 
   uint64 flags = 0;
-  if(is_key)
+  if (is_key)
     flags |= 0x80;
 
   if (SerializeInt(writer, flags, 1))
@@ -344,6 +366,193 @@ uint64 WriteSimpleBlock(IMkvWriter* writer,
   return element_size;
 }
 
+// We must write the metadata (key)frame as a BlockGroup element,
+// because we need to specify a duration for the frame.  The
+// BlockGroup element comprises the frame itself and its duration,
+// and is laid out as follows:
+//
+//   BlockGroup tag
+//   BlockGroup size
+//     Block tag
+//     Block size
+//     (the frame is the block payload)
+//     Duration tag
+//     Duration size
+//     (duration payload)
+//
+uint64 WriteMetadataBlock(IMkvWriter* writer,
+                          const uint8* data,
+                          uint64 length,
+                          uint64 track_number,
+                          int64 timecode,
+                          uint64 duration) {
+  // We don't backtrack when writing to the stream, so we must
+  // pre-compute the BlockGroup size, by summing the sizes of each
+  // sub-element (the block and the duration).
+
+  // We use a single byte for the track number of the block, which
+  // means the block header is exactly 4 bytes.
+
+  // TODO(matthewjheaney): use EbmlMasterElementSize and WriteEbmlMasterElement
+
+  const uint64 block_payload_size = 4 + length;
+  const int32 block_size = GetCodedUIntSize(block_payload_size);
+  const uint64 block_elem_size = 1 + block_size + block_payload_size;
+
+  const int32 duration_payload_size = GetUIntSize(duration);
+  const int32 duration_size = GetCodedUIntSize(duration_payload_size);
+  const uint64 duration_elem_size = 1 + duration_size + duration_payload_size;
+
+  const uint64 blockg_payload_size = block_elem_size + duration_elem_size;
+  const int32 blockg_size = GetCodedUIntSize(blockg_payload_size);
+  const uint64 blockg_elem_size = 1 + blockg_size + blockg_payload_size;
+
+  if (WriteID(writer, kMkvBlockGroup))  // 1-byte ID size
+    return 0;
+
+  if (WriteUInt(writer, blockg_payload_size))
+    return 0;
+
+  //  Write Block element
+
+  if (WriteID(writer, kMkvBlock))  // 1-byte ID size
+    return 0;
+
+  if (WriteUInt(writer, block_payload_size))
+    return 0;
+
+  // Byte 1 of 4
+
+  if (WriteUInt(writer, track_number))
+    return 0;
+
+  // Bytes 2 & 3 of 4
+
+  if (SerializeInt(writer, timecode, 2))
+    return 0;
+
+  // Byte 4 of 4
+
+  const uint64 flags = 0;
+
+  if (SerializeInt(writer, flags, 1))
+    return 0;
+
+  // Now write the actual frame (of metadata)
+
+  if (writer->Write(data, static_cast<uint32>(length)))
+    return 0;
+
+  // Write Duration element
+
+  if (WriteID(writer, kMkvBlockDuration))  // 1-byte ID size
+    return 0;
+
+  if (WriteUInt(writer, duration_payload_size))
+    return 0;
+
+  if (SerializeInt(writer, duration, duration_payload_size))
+    return 0;
+
+  // Note that we don't write a reference time as part of the block
+  // group; no reference time(s) indicates that this block is a
+  // keyframe.  (Unlike the case for a SimpleBlock element, the header
+  // bits of the Block sub-element of a BlockGroup element do not
+  // indicate keyframe status.  The keyframe status is inferred from
+  // the absence of reference time sub-elements.)
+
+  return blockg_elem_size;
+}
+
+// Writes a WebM Block with Additional. The structure is as follows
+// Indentation shows sub-levels
+// BlockGroup
+//  Block
+//    Data
+//  BlockAdditions
+//    BlockMore
+//      BlockAddID
+//        1 (Denotes Alpha)
+//      BlockAdditional
+//        Data
+uint64 WriteBlockWithAdditional(IMkvWriter* writer,
+                                const uint8* data,
+                                uint64 length,
+                                const uint8* additional,
+                                uint64 additional_length,
+                                uint64 add_id,
+                                uint64 track_number,
+                                int64 timecode,
+                                uint64 is_key) {
+  if (!data || !additional || length < 1 || additional_length < 1)
+    return 0;
+
+  const uint64 block_payload_size = 4 + length;
+  const uint64 block_elem_size = EbmlMasterElementSize(kMkvBlock,
+                                                       block_payload_size) +
+                                 block_payload_size;
+  const uint64 block_additional_elem_size = EbmlElementSize(kMkvBlockAdditional,
+                                                            additional,
+                                                            additional_length);
+  const uint64 block_addid_elem_size = EbmlElementSize(kMkvBlockAddID, add_id);
+
+  const uint64 block_more_payload_size = block_addid_elem_size +
+                                         block_additional_elem_size;
+  const uint64 block_more_elem_size = EbmlMasterElementSize(
+                                          kMkvBlockMore,
+                                          block_more_payload_size) +
+                                      block_more_payload_size;
+  const uint64 block_additions_payload_size = block_more_elem_size;
+  const uint64 block_additions_elem_size = EbmlMasterElementSize(
+                                               kMkvBlockAdditions,
+                                               block_additions_payload_size) +
+                                           block_additions_payload_size;
+  const uint64 block_group_payload_size = block_elem_size +
+                                          block_additions_elem_size;
+  const uint64 block_group_elem_size = EbmlMasterElementSize(
+                                           kMkvBlockGroup,
+                                           block_group_payload_size) +
+                                       block_group_payload_size;
+
+  if (!WriteEbmlMasterElement(writer, kMkvBlockGroup,
+                              block_group_payload_size))
+    return 0;
+
+  if (!WriteEbmlMasterElement(writer, kMkvBlock, block_payload_size))
+    return 0;
+
+  if (WriteUInt(writer, track_number))
+    return 0;
+
+  if (SerializeInt(writer, timecode, 2))
+    return 0;
+
+  uint64 flags = 0;
+  if (is_key)
+    flags |= 0x80;
+  if (SerializeInt(writer, flags, 1))
+    return 0;
+
+  if (writer->Write(data, static_cast<uint32>(length)))
+    return 0;
+
+  if (!WriteEbmlMasterElement(writer, kMkvBlockAdditions,
+                              block_additions_payload_size))
+    return 0;
+
+  if (!WriteEbmlMasterElement(writer, kMkvBlockMore, block_more_payload_size))
+    return 0;
+
+  if (!WriteEbmlElement(writer, kMkvBlockAddID, add_id))
+    return 0;
+
+  if (!WriteEbmlElement(writer, kMkvBlockAdditional,
+                        additional, additional_length))
+    return 0;
+
+  return block_group_elem_size;
+}
+
 uint64 WriteVoidElement(IMkvWriter* writer, uint64 size) {
   if (!writer)
     return false;
@@ -380,11 +589,42 @@ uint64 WriteVoidElement(IMkvWriter* writer, uint64 size) {
   return void_size;
 }
 
-void GetVersion(int32& major, int32& minor, int32& build, int32& revision) {
-  major = 0;
-  minor = 0;
-  build = 0;
-  revision = 1;
+void GetVersion(int32* major, int32* minor, int32* build, int32* revision) {
+  *major = 0;
+  *minor = 2;
+  *build = 1;
+  *revision = 0;
 }
 
 }  // namespace mkvmuxer
+
+mkvmuxer::uint64 mkvmuxer::MakeUID(unsigned int* seed) {
+  uint64 uid = 0;
+  for (int i = 0; i < 7; ++i) {  // avoid problems with 8-byte values
+    uid <<= 8;
+
+    // TODO(fgalligan): Move random number generation to platform specific code.
+#ifdef _WIN32
+    (void)seed;
+    unsigned int random_value;
+    const errno_t e = rand_s(&random_value);
+    (void)e;
+    const int32 nn  = random_value;
+#elif __ANDROID__
+    int32 temp_num = 1;
+    int fd = open("/dev/urandom", O_RDONLY);
+    if (fd != -1) {
+      read(fd, &temp_num, sizeof(int32));
+      close(fd);
+    }
+    const int32 nn = temp_num;
+#else
+    const int32 nn = rand_r(seed);
+#endif
+    const int32 n = 0xFF & (nn >> 4);  // throw away low-order bits
+
+    uid |= n;
+  }
+
+  return uid;
+}

mkvmuxerutil.hpp

@@ -16,11 +16,14 @@ namespace mkvmuxer {
 class IMkvWriter;
 
 const uint64 kEbmlUnknownValue = 0x01FFFFFFFFFFFFFFULL;
+const int64 kMaxBlockTimecode = 0x07FFFLL;
 
 // Writes out |value| in Big Endian order. Returns 0 on success.
 int32 SerializeInt(IMkvWriter* writer, int64 value, int32 size);
 
 // Returns the size in bytes of the element.
+int32 GetUIntSize(uint64 value);
+int32 GetCodedUIntSize(uint64 value);
 uint64 EbmlMasterElementSize(uint64 type, uint64 value);
 uint64 EbmlElementSize(uint64 type, uint64 value);
 uint64 EbmlElementSize(uint64 type, float value);
@@ -58,15 +61,57 @@ bool WriteEbmlElement(IMkvWriter* writer,
 //   data:         Pointer to the data.
 //   length:       Length of the data.
 //   track_number: Track to add the data to. Value returned by Add track
-//                 functions.
-//   timecode:     Relative timecode of the Block.
-//   is_key:       Flag telling whether or not this frame is a key frame.
+//                  functions.  Only values in the range [1, 126] are
+//                  permitted.
+//   timecode:     Relative timecode of the Block.  Only values in the
+//                  range [0, 2^15) are permitted.
+//   is_key:       Non-zero value specifies that frame is a key frame.
 uint64 WriteSimpleBlock(IMkvWriter* writer,
                         const uint8* data,
                         uint64 length,
-                        char track_number,
-                        short timecode,
-                        bool is_key);
+                        uint64 track_number,
+                        int64 timecode,
+                        uint64 is_key);
+
+// Output a metadata keyframe, using a Block Group element.
+// Inputs:
+//   data:         Pointer to the (meta)data.
+//   length:       Length of the (meta)data.
+//   track_number: Track to add the data to. Value returned by Add track
+//                  functions.  Only values in the range [1, 126] are
+//                  permitted.
+//   timecode      Timecode of frame, relative to cluster timecode.  Only
+//                  values in the range [0, 2^15) are permitted.
+//   duration_timecode  Duration of frame, using timecode units.
+uint64 WriteMetadataBlock(IMkvWriter* writer,
+                          const uint8* data,
+                          uint64 length,
+                          uint64 track_number,
+                          int64 timecode,
+                          uint64 duration_timecode);
+
+// Output an Mkv Block with BlockAdditional data.
+// Inputs:
+//   data:         Pointer to the data.
+//   length:       Length of the data.
+//   additional:   Pointer to the additional data
+//   additional_length: Length of the additional data.
+//   add_id: Value of BlockAddID element.
+//   track_number: Track to add the data to. Value returned by Add track
+//                  functions.  Only values in the range [1, 126] are
+//                  permitted.
+//   timecode:     Relative timecode of the Block.  Only values in the
+//                  range [0, 2^15) are permitted.
+//   is_key:       Non-zero value specifies that frame is a key frame.
+uint64 WriteBlockWithAdditional(IMkvWriter* writer,
+                                const uint8* data,
+                                uint64 length,
+                                const uint8* additional,
+                                uint64 additional_length,
+                                uint64 add_id,
+                                uint64 track_number,
+                                int64 timecode,
+                                uint64 is_key);
 
 // Output a void element. |size| must be the entire size in bytes that will be
 // void. The function will calculate the size of the void header and subtract
@@ -75,7 +120,11 @@ uint64 WriteVoidElement(IMkvWriter* writer, uint64 size);
 
 // Returns the version number of the muxer in |major|, |minor|, |build|,
 // and |revision|.
-void GetVersion(int32& major, int32& minor, int32& build, int32& revision);
+void GetVersion(int32* major, int32* minor, int32* build, int32* revision);
+
+// Returns a random number to be used for UID, using |seed| to seed
+// the random-number generator (see POSIX rand_r() for semantics).
+uint64 MakeUID(unsigned int* seed);
 
 }  //end namespace mkvmuxer
 

mkvparser.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
@@ -30,23 +30,26 @@ protected:
 
 long long GetUIntLength(IMkvReader*, long long, long&);
 long long ReadUInt(IMkvReader*, long long, long&);
-long long SyncReadUInt(IMkvReader*, long long pos, long long stop, long&);
 long long UnserializeUInt(IMkvReader*, long long pos, long long size);
-float Unserialize4Float(IMkvReader*, long long);
-double Unserialize8Double(IMkvReader*, long long);
 
-#if 0
-short Unserialize2SInt(IMkvReader*, long long);
-signed char Unserialize1SInt(IMkvReader*, long long);
-#else
+long UnserializeFloat(IMkvReader*, long long pos, long long size, double&);
 long UnserializeInt(IMkvReader*, long long pos, long len, long long& result);
-#endif
+
+long UnserializeString(
+        IMkvReader*,
+        long long pos,
+        long long size,
+        char*& str);
+
+long ParseElementHeader(
+    IMkvReader* pReader,
+    long long& pos,  //consume id and size fields
+    long long stop,  //if you know size of element's parent
+    long long& id,
+    long long& size);
 
 bool Match(IMkvReader*, long long&, unsigned long, long long&);
-bool Match(IMkvReader*, long long&, unsigned long, char*&);
 bool Match(IMkvReader*, long long&, unsigned long, unsigned char*&, size_t&);
-bool Match(IMkvReader*, long long&, unsigned long, double&);
-bool Match(IMkvReader*, long long&, unsigned long, short&);
 
 void GetVersion(int& major, int& minor, int& build, int& revision);
 
@@ -80,9 +83,11 @@ public:
     const long long m_start;
     const long long m_size;
 
-    Block(long long start, long long size, IMkvReader*);
+    Block(long long start, long long size);
     ~Block();
 
+    long Parse(const Cluster*);
+
     long long GetTrackNumber() const;
     long long GetTimeCode(const Cluster*) const;  //absolute, but not scaled
     long long GetTime(const Cluster*) const;      //absolute, and scaled (ns)
@@ -126,6 +131,7 @@ protected:
 
 public:
     virtual ~BlockEntry();
+
     bool EOS() const;
     const Cluster* GetCluster() const;
     long GetIndex() const;
@@ -148,6 +154,7 @@ class SimpleBlock : public BlockEntry
 
 public:
     SimpleBlock(Cluster*, long index, long long start, long long size);
+    long Parse();
 
     Kind GetKind() const;
     const Block* GetBlock() const;
@@ -173,12 +180,14 @@ public:
         long long next,
         long long duration);
 
+    long Parse();
+
     Kind GetKind() const;
     const Block* GetBlock() const;
 
     long long GetPrevTimeCode() const;  //relative to block's time
     long long GetNextTimeCode() const;  //as above
-    long long GetDuration() const;
+    long long GetDurationTimeCode() const;
 
 private:
     Block m_block;
@@ -194,6 +203,10 @@ private:
 // compressed with zlib or header stripping.
 class ContentEncoding {
 public:
+    enum {
+      kCTR = 1
+    };
+
     ContentEncoding();
     ~ContentEncoding();
 
@@ -204,6 +217,15 @@ public:
 
         unsigned long long algo;
         unsigned char* settings;
+        long long settings_len;
+    };
+
+    // ContentEncAESSettings element names
+    struct ContentEncAESSettings {
+      ContentEncAESSettings() : cipher_mode(kCTR) {}
+      ~ContentEncAESSettings() {}
+
+      unsigned long long cipher_mode;
     };
 
     // ContentEncryption element names
@@ -220,6 +242,8 @@ public:
         long long sig_key_id_len;
         unsigned long long sig_algo;
         unsigned long long sig_hash_algo;
+
+        ContentEncAESSettings aes_settings;
     };
 
     // Returns ContentCompression represented by |idx|. Returns NULL if |idx|
@@ -230,6 +254,15 @@ public:
     // element.
     unsigned long GetCompressionCount() const;
 
+    // Parses the ContentCompression element from |pReader|. |start| is the
+    // starting offset of the ContentCompression payload. |size| is the size in
+    // bytes of the ContentCompression payload. |compression| is where the parsed
+    // values will be stored.
+    long ParseCompressionEntry(long long start,
+                               long long size,
+                               IMkvReader* pReader,
+                               ContentCompression* compression);
+
     // Returns ContentEncryption represented by |idx|. Returns NULL if |idx|
     // is out of bounds.
     const ContentEncryption* GetEncryptionByIndex(unsigned long idx) const;
@@ -238,21 +271,30 @@ public:
     // element.
     unsigned long GetEncryptionCount() const;
 
+    // Parses the ContentEncAESSettings element from |pReader|. |start| is the
+    // starting offset of the ContentEncAESSettings payload. |size| is the
+    // size in bytes of the ContentEncAESSettings payload. |encryption| is
+    // where the parsed values will be stored.
+    long ParseContentEncAESSettingsEntry(long long start,
+                                         long long size,
+                                         IMkvReader* pReader,
+                                         ContentEncAESSettings* aes);
+
     // Parses the ContentEncoding element from |pReader|. |start| is the
     // starting offset of the ContentEncoding payload. |size| is the size in
     // bytes of the ContentEncoding payload. Returns true on success.
-    bool ParseContentEncodingEntry(long long start,
+    long ParseContentEncodingEntry(long long start,
                                    long long size,
-                                   IMkvReader* const pReader);
+                                   IMkvReader* pReader);
 
     // Parses the ContentEncryption element from |pReader|. |start| is the
     // starting offset of the ContentEncryption payload. |size| is the size in
     // bytes of the ContentEncryption payload. |encryption| is where the parsed
     // values will be stored.
-    void ParseEncryptionEntry(long long start,
+    long ParseEncryptionEntry(long long start,
                               long long size,
-                              IMkvReader* const pReader,
-                              ContentEncryption* const encryption);
+                              IMkvReader* pReader,
+                              ContentEncryption* encryption);
 
     unsigned long long encoding_order() const { return encoding_order_; }
     unsigned long long encoding_scope() const { return encoding_scope_; }
@@ -283,19 +325,36 @@ class Track
     Track& operator=(const Track&);
 
 public:
+    class Info;
+    static long Create(
+        Segment*,
+        const Info&,
+        long long element_start,
+        long long element_size,
+        Track*&);
+
+    enum Type {
+        kVideo = 1,
+        kAudio = 2,
+        kSubtitle = 0x11,
+        kMetadata = 0x21
+     };
+
     Segment* const m_pSegment;
     const long long m_element_start;
     const long long m_element_size;
     virtual ~Track();
 
-    long long GetType() const;
-    long long GetNumber() const;
+    long GetType() const;
+    long GetNumber() const;
     unsigned long long GetUid() const;
     const char* GetNameAsUTF8() const;
+    const char* GetLanguage() const;
     const char* GetCodecNameAsUTF8() const;
     const char* GetCodecId() const;
     const unsigned char* GetCodecPrivate(size_t&) const;
     bool GetLacing() const;
+    unsigned long long GetDefaultDuration() const;
 
     const BlockEntry* GetEOS() const;
 
@@ -305,49 +364,56 @@ public:
         long long size;
     };
 
-    struct Info
+    class Info
     {
-        long long type;
-        long long number;
+    public:
+        Info();
+        ~Info();
+        int Copy(Info&) const;
+        void Clear();
+    private:
+        Info(const Info&);
+        Info& operator=(const Info&);
+    public:
+        long type;
+        long number;
         unsigned long long uid;
+        unsigned long long defaultDuration;
         char* nameAsUTF8;
+        char* language;
         char* codecId;
+        char* codecNameAsUTF8;
         unsigned char* codecPrivate;
         size_t codecPrivateSize;
-        char* codecNameAsUTF8;
         bool lacing;
         Settings settings;
-
-        Info();
-        void Clear();
+    private:
+        int CopyStr(char* Info::*str, Info&) const;
     };
 
     long GetFirst(const BlockEntry*&) const;
     long GetNext(const BlockEntry* pCurr, const BlockEntry*& pNext) const;
-    virtual bool VetEntry(const BlockEntry*) const = 0;
-    virtual long Seek(long long time_ns, const BlockEntry*&) const = 0;
+    virtual bool VetEntry(const BlockEntry*) const;
+    virtual long Seek(long long time_ns, const BlockEntry*&) const;
 
     const ContentEncoding* GetContentEncodingByIndex(unsigned long idx) const;
     unsigned long GetContentEncodingCount() const;
 
-    void ParseContentEncodingsEntry(long long start, long long size);
+    long ParseContentEncodingsEntry(long long start, long long size);
 
 protected:
     Track(
         Segment*,
-        const Info&,
         long long element_start,
         long long element_size);
-    const Info m_info;
+
+    Info m_info;
 
     class EOSBlock : public BlockEntry
     {
     public:
         EOSBlock();
 
-        //bool EOS() const;
-        //const Cluster* GetCluster() const;
-        //long GetIndex() const;
         Kind GetKind() const;
         const Block* GetBlock() const;
     };
@@ -365,12 +431,19 @@ class VideoTrack : public Track
     VideoTrack(const VideoTrack&);
     VideoTrack& operator=(const VideoTrack&);
 
-public:
     VideoTrack(
+        Segment*,
+        long long element_start,
+        long long element_size);
+
+public:
+    static long Parse(
         Segment*,
         const Info&,
         long long element_start,
-        long long element_size);
+        long long element_size,
+        VideoTrack*&);
+
     long long GetWidth() const;
     long long GetHeight() const;
     double GetFrameRate() const;
@@ -391,17 +464,21 @@ class AudioTrack : public Track
     AudioTrack(const AudioTrack&);
     AudioTrack& operator=(const AudioTrack&);
 
-public:
     AudioTrack(
+        Segment*,
+        long long element_start,
+        long long element_size);
+public:
+    static long Parse(
         Segment*,
         const Info&,
         long long element_start,
-        long long element_size);
+        long long element_size,
+        AudioTrack*&);
+
     double GetSamplingRate() const;
     long long GetChannels() const;
     long long GetBitDepth() const;
-    bool VetEntry(const BlockEntry*) const;
-    long Seek(long long time_ns, const BlockEntry*&) const;
 
 private:
     double m_rate;
@@ -428,24 +505,152 @@ public:
         long long size,
         long long element_start,
         long long element_size);
-    virtual ~Tracks();
 
-    const Track* GetTrackByNumber(unsigned long tn) const;
+    ~Tracks();
+
+    long Parse();
+
+    unsigned long GetTracksCount() const;
+
+    const Track* GetTrackByNumber(long tn) const;
     const Track* GetTrackByIndex(unsigned long idx) const;
 
 private:
     Track** m_trackEntries;
     Track** m_trackEntriesEnd;
 
-    void ParseTrackEntry(
-        long long,
-        long long,
-        Track*&,
+    long ParseTrackEntry(
+        long long payload_start,
+        long long payload_size,
+        long long element_start,
+        long long element_size,
+        Track*&) const;
+
+};
+
+
+class Chapters
+{
+    Chapters(const Chapters&);
+    Chapters& operator=(const Chapters&);
+
+public:
+    Segment* const m_pSegment;
+    const long long m_start;
+    const long long m_size;
+    const long long m_element_start;
+    const long long m_element_size;
+
+    Chapters(
+        Segment*,
+        long long payload_start,
+        long long payload_size,
         long long element_start,
         long long element_size);
 
-public:
-    unsigned long GetTracksCount() const;
+    ~Chapters();
+
+    long Parse();
+
+    class Atom;
+    class Edition;
+
+    class Display
+    {
+        friend class Atom;
+        Display();
+        Display(const Display&);
+        ~Display();
+        Display& operator=(const Display&);
+    public:
+        const char* GetString() const;
+        const char* GetLanguage() const;
+        const char* GetCountry() const;
+    private:
+        void Init();
+        void ShallowCopy(Display&) const;
+        void Clear();
+        long Parse(IMkvReader*, long long pos, long long size);
+
+        char* m_string;
+        char* m_language;
+        char* m_country;
+    };
+
+    class Atom
+    {
+        friend class Edition;
+        Atom();
+        Atom(const Atom&);
+        ~Atom();
+        Atom& operator=(const Atom&);
+    public:
+        unsigned long long GetUID() const;
+        const char* GetStringUID() const;
+
+        long long GetStartTimecode() const;
+        long long GetStopTimecode() const;
+
+        long long GetStartTime(const Chapters*) const;
+        long long GetStopTime(const Chapters*) const;
+
+        int GetDisplayCount() const;
+        const Display* GetDisplay(int index) const;
+    private:
+        void Init();
+        void ShallowCopy(Atom&) const;
+        void Clear();
+        long Parse(IMkvReader*, long long pos, long long size);
+        static long long GetTime(const Chapters*, long long timecode);
+
+        long ParseDisplay(IMkvReader*, long long pos, long long size);
+        bool ExpandDisplaysArray();
+
+        char* m_string_uid;
+        unsigned long long m_uid;
+        long long m_start_timecode;
+        long long m_stop_timecode;
+
+        Display* m_displays;
+        int m_displays_size;
+        int m_displays_count;
+    };
+
+    class Edition
+    {
+        friend class Chapters;
+        Edition();
+        Edition(const Edition&);
+        ~Edition();
+        Edition& operator=(const Edition&);
+    public:
+        int GetAtomCount() const;
+        const Atom* GetAtom(int index) const;
+    private:
+        void Init();
+        void ShallowCopy(Edition&) const;
+        void Clear();
+        long Parse(IMkvReader*, long long pos, long long size);
+
+        long ParseAtom(IMkvReader*, long long pos, long long size);
+        bool ExpandAtomsArray();
+
+        Atom* m_atoms;
+        int m_atoms_size;
+        int m_atoms_count;
+    };
+
+    int GetEditionCount() const;
+    const Edition* GetEdition(int index) const;
+
+private:
+    long ParseEdition(long long pos, long long size);
+    bool ExpandEditionsArray();
+
+    Edition* m_editions;
+    int m_editions_size;
+    int m_editions_count;
+
 };
 
 
@@ -470,6 +675,8 @@ public:
 
     ~SegmentInfo();
 
+    long Parse();
+
     long long GetTimeCodeScale() const;
     long long GetDuration() const;  //scaled
     const char* GetMuxingAppAsUTF8() const;
@@ -506,6 +713,8 @@ public:
 
     ~SeekHead();
 
+    long Parse();
+
     struct Entry
     {
         //the SeekHead entry payload
@@ -680,9 +889,10 @@ public:
     long long GetFirstTime() const;  //time (ns) of first (earliest) block
     long long GetLastTime() const;   //time (ns) of last (latest) block
 
-    const BlockEntry* GetFirst() const;
-    const BlockEntry* GetLast() const;
-    const BlockEntry* GetNext(const BlockEntry*) const;
+    long GetFirst(const BlockEntry*&) const;
+    long GetLast(const BlockEntry*&) const;
+    long GetNext(const BlockEntry* curr, const BlockEntry*& next) const;
+
     const BlockEntry* GetEntry(const Track*, long long ns = -1) const;
     const BlockEntry* GetEntry(
         const CuePoint&,
@@ -731,12 +941,12 @@ private:
     mutable long m_entries_size;
     mutable long m_entries_count;
 
-    long ParseSimpleBlock(long long, long long&, long&) const;
-    long ParseBlockGroup(long long, long long&, long&) const;
+    long ParseSimpleBlock(long long, long long&, long&);
+    long ParseBlockGroup(long long, long long&, long&);
 
-    void CreateBlock(long long id, long long pos, long long size) const;
-    void CreateBlockGroup(long long, long long, BlockEntry**&) const;
-    void CreateSimpleBlock(long long, long long, BlockEntry**&) const;
+    long CreateBlock(long long id, long long pos, long long size);
+    long CreateBlockGroup(long long, long long);
+    long CreateSimpleBlock(long long, long long);
 
 };
 
@@ -744,8 +954,8 @@ private:
 class Segment
 {
     friend class Cues;
+    friend class Track;
     friend class VideoTrack;
-    friend class AudioTrack;
 
     Segment(const Segment&);
     Segment& operator=(const Segment&);
@@ -796,6 +1006,7 @@ public:
     const Tracks* GetTracks() const;
     const SegmentInfo* GetInfo() const;
     const Cues* GetCues() const;
+    const Chapters* GetChapters() const;
 
     long long GetDuration() const;
 
@@ -823,6 +1034,7 @@ private:
     SegmentInfo* m_pInfo;
     Tracks* m_pTracks;
     Cues* m_pCues;
+    Chapters* m_pChapters;
     Cluster** m_clusters;
     long m_clusterCount;         //number of entries for which m_index >= 0
     long m_clusterPreloadCount;  //number of entries for which m_index < 0

mkvreader.hpp

@@ -25,7 +25,6 @@ public:
 
     int Open(const char*);
     void Close();
-    bool IsOpen() const;
 
     virtual int Read(long long position, long length, unsigned char* buffer);
     virtual int Length(long long* total, long long* available);

mkvwriter.cpp

@@ -1,94 +1,94 @@
-// Copyright (c) 2011 The WebM project authors. All Rights Reserved.
-//
-// Use of this source code is governed by a BSD-style license
-// that can be found in the LICENSE file in the root of the source
-// tree. An additional intellectual property rights grant can be found
-// in the file PATENTS.  All contributing project authors may
-// be found in the AUTHORS file in the root of the source tree.
-
-#include "mkvwriter.hpp"
-
-#ifdef _MSC_VER
-#include <share.h> // for _SH_DENYWR
-#endif
-
-#include <new>
-
-namespace mkvmuxer {
-
-MkvWriter::MkvWriter() : file_(NULL) {
-}
-
-MkvWriter::~MkvWriter() {
-  Close();
-}
-
-int32 MkvWriter::Write(const void* buffer, uint32 length) {
-  if (!file_)
-    return -1;
-
-  if (length == 0)
-    return 0;
-
-  if (buffer == NULL)
-    return -1;
-
-  const size_t bytes_written = fwrite(buffer, 1, length, file_);
-
-  return (bytes_written == length) ? 0 : -1;
-}
-
-bool MkvWriter::Open(const char* filename) {
-  if (filename == NULL)
-    return false;
-
-  if (file_)
-    return false;
-
-#ifdef _MSC_VER
-  file_ = _fsopen(filename, "wb", _SH_DENYWR);
-#else
-  file_ = fopen(filename, "wb");
-#endif
-  if (file_ == NULL)
-    return false;
-  return true;
-}
-
-void MkvWriter::Close() {
-  if (file_) {
-    fclose(file_);
-    file_ = NULL;
-  }
-}
-
-int64 MkvWriter::Position() const {
-  if (!file_)
-    return 0;
-
-#ifdef _MSC_VER
-    return _ftelli64(file_);
-#else
-    return ftell(file_);
-#endif
-}
-
-int32 MkvWriter::Position(int64 position) {
-  if (!file_)
-    return -1;
-
-#ifdef _MSC_VER
-    return _fseeki64(file_, position, SEEK_SET);
-#else
-    return fseek(file_, position, SEEK_SET);
-#endif
-}
-
-bool MkvWriter::Seekable() const {
-  return true;
-}
-
-void MkvWriter::ElementStartNotify(uint64, int64) {
-}
-
-}  // namespace mkvmuxer
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#include "mkvwriter.hpp"
+
+#ifdef _MSC_VER
+#include <share.h>  // for _SH_DENYWR
+#endif
+
+#include <new>
+
+namespace mkvmuxer {
+
+MkvWriter::MkvWriter() : file_(NULL) {
+}
+
+MkvWriter::~MkvWriter() {
+  Close();
+}
+
+int32 MkvWriter::Write(const void* buffer, uint32 length) {
+  if (!file_)
+    return -1;
+
+  if (length == 0)
+    return 0;
+
+  if (buffer == NULL)
+    return -1;
+
+  const size_t bytes_written = fwrite(buffer, 1, length, file_);
+
+  return (bytes_written == length) ? 0 : -1;
+}
+
+bool MkvWriter::Open(const char* filename) {
+  if (filename == NULL)
+    return false;
+
+  if (file_)
+    return false;
+
+#ifdef _MSC_VER
+  file_ = _fsopen(filename, "wb", _SH_DENYWR);
+#else
+  file_ = fopen(filename, "wb");
+#endif
+  if (file_ == NULL)
+    return false;
+  return true;
+}
+
+void MkvWriter::Close() {
+  if (file_) {
+    fclose(file_);
+    file_ = NULL;
+  }
+}
+
+int64 MkvWriter::Position() const {
+  if (!file_)
+    return 0;
+
+#ifdef _MSC_VER
+    return _ftelli64(file_);
+#else
+    return ftell(file_);
+#endif
+}
+
+int32 MkvWriter::Position(int64 position) {
+  if (!file_)
+    return -1;
+
+#ifdef _MSC_VER
+    return _fseeki64(file_, position, SEEK_SET);
+#else
+    return fseek(file_, position, SEEK_SET);
+#endif
+}
+
+bool MkvWriter::Seekable() const {
+  return true;
+}
+
+void MkvWriter::ElementStartNotify(uint64, int64) {
+}
+
+}  // namespace mkvmuxer

mkvwriter.hpp

@@ -1,49 +1,49 @@
-// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
-//
-// Use of this source code is governed by a BSD-style license
-// that can be found in the LICENSE file in the root of the source
-// tree. An additional intellectual property rights grant can be found
-// in the file PATENTS.  All contributing project authors may
-// be found in the AUTHORS file in the root of the source tree.
-
-#ifndef MKVWRITER_HPP
-#define MKVWRITER_HPP
-
-#include <stdio.h>
-
-#include "mkvmuxer.hpp"
-#include "mkvmuxertypes.hpp"
-
-namespace mkvmuxer {
-
-// Default implementation of the IMkvWriter interface on Windows.
-class MkvWriter : public IMkvWriter {
- public:
-  MkvWriter();
-  virtual ~MkvWriter();
-
-  // IMkvWriter interface
-  virtual int64 Position() const;
-  virtual int32 Position(int64 position);
-  virtual bool Seekable() const;
-  virtual int32 Write(const void* buffer, uint32 length);
-  virtual void ElementStartNotify(uint64 element_id, int64 position);
-
-  // Creates and opens a file for writing. |filename| is the name of the file
-  // to open. This function will overwrite the contents of |filename|. Returns
-  // true on success.
-  bool Open(const char* filename);
-
-  // Closes an opened file.
-  void Close();
-
- private:
-  // File handle to output file.
-  FILE* file_;
-
-  LIBWEBM_DISALLOW_COPY_AND_ASSIGN(MkvWriter);
-};
-
-}  //end namespace mkvmuxer
-
-#endif // MKVWRITER_HPP
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#ifndef MKVWRITER_HPP
+#define MKVWRITER_HPP
+
+#include <stdio.h>
+
+#include "mkvmuxer.hpp"
+#include "mkvmuxertypes.hpp"
+
+namespace mkvmuxer {
+
+// Default implementation of the IMkvWriter interface on Windows.
+class MkvWriter : public IMkvWriter {
+ public:
+  MkvWriter();
+  virtual ~MkvWriter();
+
+  // IMkvWriter interface
+  virtual int64 Position() const;
+  virtual int32 Position(int64 position);
+  virtual bool Seekable() const;
+  virtual int32 Write(const void* buffer, uint32 length);
+  virtual void ElementStartNotify(uint64 element_id, int64 position);
+
+  // Creates and opens a file for writing. |filename| is the name of the file
+  // to open. This function will overwrite the contents of |filename|. Returns
+  // true on success.
+  bool Open(const char* filename);
+
+  // Closes an opened file.
+  void Close();
+
+ private:
+  // File handle to output file.
+  FILE* file_;
+
+  LIBWEBM_DISALLOW_COPY_AND_ASSIGN(MkvWriter);
+};
+
+}  //end namespace mkvmuxer
+
+#endif // MKVWRITER_HPP

sample.cpp

@@ -11,6 +11,7 @@
 
 #include "mkvreader.hpp"
 #include "mkvparser.hpp"
+#include <memory>
 
 #ifdef _MSC_VER
 // Silences these warnings:
@@ -83,15 +84,18 @@ int main(int argc, char* argv[])
     printf("\t\tDoc Type\t\t: %s\n", ebmlHeader.m_docType);
     printf("\t\tPos\t\t\t: %lld\n", pos);
 
-    mkvparser::Segment* pSegment;
+    typedef mkvparser::Segment seg_t;
+    seg_t* pSegment_;
 
-    long long ret = mkvparser::Segment::CreateInstance(&reader, pos, pSegment);
+    long long ret = seg_t::CreateInstance(&reader, pos, pSegment_);
     if (ret)
     {
         printf("\n Segment::CreateInstance() failed.");
         return -1;
     }
 
+    const std::auto_ptr<seg_t> pSegment(pSegment_);
+
     ret  = pSegment->Load();
     if (ret < 0)
     {
@@ -157,8 +161,6 @@ int main(int argc, char* argv[])
     unsigned long i = 0;
     const unsigned long j = pTracks->GetTracksCount();
 
-    enum { VIDEO_TRACK = 1, AUDIO_TRACK = 2 };
-
     printf("\n\t\t\t   Track Info\n");
 
     while (i != j)
@@ -168,13 +170,13 @@ int main(int argc, char* argv[])
         if (pTrack == NULL)
             continue;
 
-        const long long trackType = pTrack->GetType();
-        const long long trackNumber = pTrack->GetNumber();
+        const long trackType = pTrack->GetType();
+        const long trackNumber = pTrack->GetNumber();
         const unsigned long long trackUid = pTrack->GetUid();
         const wchar_t* const pTrackName = utf8towcs(pTrack->GetNameAsUTF8());
 
-        printf("\t\tTrack Type\t\t: %lld\n", trackType);
-        printf("\t\tTrack Number\t\t: %lld\n", trackNumber);
+        printf("\t\tTrack Type\t\t: %ld\n", trackType);
+        printf("\t\tTrack Number\t\t: %ld\n", trackNumber);
         printf("\t\tTrack Uid\t\t: %lld\n", trackUid);
 
         if (pTrackName == NULL)
@@ -203,7 +205,7 @@ int main(int argc, char* argv[])
             delete [] pCodecName;
         }
 
-        if (trackType == VIDEO_TRACK)
+        if (trackType == mkvparser::Track::kVideo)
         {
             const VideoTrack* const pVideoTrack =
                 static_cast<const VideoTrack*>(pTrack);
@@ -218,7 +220,7 @@ int main(int argc, char* argv[])
             printf("\t\tVideo Rate\t\t: %f\n",rate);
         }
 
-        if (trackType == AUDIO_TRACK)
+        if (trackType == mkvparser::Track::kAudio)
         {
             const AudioTrack* const pAudioTrack =
                 static_cast<const AudioTrack*>(pTrack);
@@ -242,7 +244,6 @@ int main(int argc, char* argv[])
     if (clusterCount == 0)
     {
         printf("\t\tSegment has no clusters.\n");
-        delete pSegment;
         return -1;
     }
 
@@ -256,7 +257,16 @@ int main(int argc, char* argv[])
         const long long time_ns = pCluster->GetTime();
         printf("\t\tCluster Time (ns)\t: %lld\n", time_ns);
 
-        const BlockEntry* pBlockEntry = pCluster->GetFirst();
+        const BlockEntry* pBlockEntry;
+
+        long status = pCluster->GetFirst(pBlockEntry);
+
+        if (status < 0)  //error
+        {
+            printf("\t\tError parsing first block of cluster\n");
+            fflush(stdout);
+            return -1;
+        }
 
         while ((pBlockEntry != NULL) && !pBlockEntry->EOS())
         {
@@ -264,30 +274,42 @@ int main(int argc, char* argv[])
             const long long trackNum = pBlock->GetTrackNumber();
             const unsigned long tn = static_cast<unsigned long>(trackNum);
             const Track* const pTrack = pTracks->GetTrackByNumber(tn);
-            const long long trackType = pTrack->GetType();
-            const int frameCount = pBlock->GetFrameCount();
-            const long long time_ns = pBlock->GetTime(pCluster);
 
-            printf("\t\t\tBlock\t\t:%s,%s,%15lld\n",
-                   (trackType == VIDEO_TRACK) ? "V" : "A",
-                   pBlock->IsKey() ? "I" : "P",
-                   time_ns);
-
-            for (int i = 0; i < frameCount; ++i)
+            if (pTrack == NULL)
+                printf("\t\t\tBlock\t\t:UNKNOWN TRACK TYPE\n");
+            else
             {
-                const Block::Frame& theFrame = pBlock->GetFrame(i);
-                const long size = theFrame.len;
-                const long long offset = theFrame.pos;
-                printf("\t\t\t %15ld,%15llx\n", size, offset);
+                const long long trackType = pTrack->GetType();
+                const int frameCount = pBlock->GetFrameCount();
+                const long long time_ns = pBlock->GetTime(pCluster);
+
+                printf("\t\t\tBlock\t\t:%s,%s,%15lld\n",
+                       (trackType == mkvparser::Track::kVideo) ? "V" : "A",
+                       pBlock->IsKey() ? "I" : "P",
+                       time_ns);
+
+                for (int i = 0; i < frameCount; ++i)
+                {
+                    const Block::Frame& theFrame = pBlock->GetFrame(i);
+                    const long size = theFrame.len;
+                    const long long offset = theFrame.pos;
+                    printf("\t\t\t %15ld,%15llx\n", size, offset);
+                }
             }
 
-            pBlockEntry = pCluster->GetNext(pBlockEntry);
+            status = pCluster->GetNext(pBlockEntry, pBlockEntry);
+
+            if (status < 0)
+            {
+                printf("\t\t\tError parsing next block of cluster\n");
+                fflush(stdout);
+                return -1;
+            }
         }
 
         pCluster = pSegment->GetNext(pCluster);
     }
 
-    delete pSegment;
+    fflush(stdout);
     return 0;
-
 }

sample_2005.vcproj

@@ -1,194 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="8.00"
-	Name="sample"
-	ProjectGUID="{0CB5681F-6065-490C-98C8-05531732ED7E}"
-	RootNamespace="sample"
-	Keyword="Win32Proj"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				AdditionalIncludeDirectories="..\"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="false"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="1"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Debug\libwebm.lib"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCWebDeploymentTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
-				RuntimeLibrary="0"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Release\libwebm.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCWebDeploymentTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\sample.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

sample_2008.vcproj

@@ -1,193 +1,181 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9.00"
-	Name="sample"
-	ProjectGUID="{0CB5681F-6065-490C-98C8-05531732ED7E}"
-	RootNamespace="sample"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="131072"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				AdditionalIncludeDirectories="..\"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="false"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="1"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Debug\libwebm.lib"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				RandomizedBaseAddress="1"
-				DataExecutionPrevention="0"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
-				RuntimeLibrary="0"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Release\libwebm.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				RandomizedBaseAddress="1"
-				DataExecutionPrevention="0"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\sample.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="sample"
+	ProjectGUID="{0CB5681F-6065-490C-98C8-05531732ED7E}"
+	RootNamespace="sample"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(ProjectDir)..\exe\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(ProjectDir)..\obj\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="false"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="1"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				Detect64BitPortabilityProblems="false"
+				DebugInformationFormat="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="$(ProjectDir)..\lib\libwebm_2008\libwebm\$(PlatformName)\$(ConfigurationName)\libwebm.lib"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(ProjectDir)..\exe\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(ProjectDir)..\obj\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="false"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="$(ProjectDir)..\lib\libwebm_2008\libwebm\$(PlatformName)\$(ConfigurationName)\libwebm.lib"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<File
+			RelativePath=".\sample.cpp"
+			>
+		</File>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>

sample_2010.vcxproj

@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug DLL|Win32">
+      <Configuration>Debug DLL</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release DLL|Win32">
+      <Configuration>Release DLL</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>sample</ProjectName>
+    <ProjectGuid>{0CB5681F-6065-490C-98C8-05531732ED7E}</ProjectGuid>
+    <RootNamespace>sample</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">true</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="sample.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="libwebm_2010.vcxproj">
+      <Project>{7b1f12ca-0724-430b-b61a-1d357c912cba}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

sample_2010.vcxproj.filters

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="sample.cpp" />
+  </ItemGroup>
+</Project>

sample_muxer.cpp

@@ -9,6 +9,8 @@
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
+#include <list>
+#include <string>
 
 // libwebm parser includes
 #include "mkvreader.hpp"
@@ -19,6 +21,10 @@
 #include "mkvwriter.hpp"
 #include "mkvmuxerutil.hpp"
 
+#include "sample_muxer_metadata.h"
+
+using mkvmuxer::uint64;
+
 namespace {
 
 void Usage() {
@@ -33,7 +39,6 @@ void Usage() {
   printf("  -output_cues <int>          >0 outputs cues element\n");
   printf("  -cues_on_video_track <int>  >0 outputs cues on video track\n");
   printf("  -cues_on_audio_track <int>  >0 outputs cues on audio track\n");
-  printf("                              0 outputs cues on audio track\n");
   printf("  -max_cluster_duration <double> in seconds\n");
   printf("  -max_cluster_size <int>     in bytes\n");
   printf("  -switch_tracks <int>        >0 switches tracks in output\n");
@@ -48,13 +53,91 @@ void Usage() {
   printf("\n");
   printf("Cues options:\n");
   printf("  -output_cues_block_number <int> >0 outputs cue block number\n");
+  printf("  -cues_before_clusters <int> >0 puts Cues before Clusters\n");
+  printf("\n");
+  printf("Metadata options:\n");
+  printf("  -webvtt-subtitles <vttfile>    "
+         "add WebVTT subtitles as metadata track\n");
+  printf("  -webvtt-captions <vttfile>     "
+         "add WebVTT captions as metadata track\n");
+  printf("  -webvtt-descriptions <vttfile> "
+         "add WebVTT descriptions as metadata track\n");
+  printf("  -webvtt-metadata <vttfile>     "
+         "add WebVTT subtitles as metadata track\n");
+  printf("  -webvtt-chapters <vttfile>     "
+         "add WebVTT chapters as MKV chapters element\n");
 }
 
-} //end namespace
+struct MetadataFile {
+  const char* name;
+  SampleMuxerMetadata::Kind kind;
+};
+
+typedef std::list<MetadataFile> metadata_files_t;
+
+// Cache the WebVTT filenames specified as command-line args.
+bool LoadMetadataFiles(
+    const metadata_files_t& files,
+    SampleMuxerMetadata* metadata) {
+  typedef metadata_files_t::const_iterator iter_t;
+
+  iter_t i = files.begin();
+  const iter_t j = files.end();
+
+  while (i != j) {
+    const metadata_files_t::value_type& v = *i++;
+
+    if (!metadata->Load(v.name, v.kind))
+      return false;
+  }
+
+  return true;
+}
+
+int ParseArgWebVTT(
+    char* argv[],
+    int* argv_index,
+    int argc_check,
+    metadata_files_t* metadata_files) {
+  int& i = *argv_index;
+
+  enum { kCount = 5 };
+  struct Arg { const char* name; SampleMuxerMetadata::Kind kind; };
+  const Arg args[kCount] = {
+    { "-webvtt-subtitles", SampleMuxerMetadata::kSubtitles },
+    { "-webvtt-captions", SampleMuxerMetadata::kCaptions },
+    { "-webvtt-descriptions", SampleMuxerMetadata::kDescriptions },
+    { "-webvtt-metadata", SampleMuxerMetadata::kMetadata },
+    { "-webvtt-chapters", SampleMuxerMetadata::kChapters }
+  };
+
+  for (int idx = 0; idx < kCount; ++idx) {
+    const Arg& arg = args[idx];
+
+    if (strcmp(arg.name, argv[i]) != 0)  // no match
+      continue;
+
+    ++i;  // consume arg name here
+
+    if (i > argc_check) {
+      printf("missing value for %s\n", arg.name);
+      return -1;  // error
+    }
+
+    MetadataFile f;
+    f.name = argv[i];  // arg value is consumed via caller's loop idx
+    f.kind = arg.kind;
+
+    metadata_files->push_back(f);
+    return 1;  // successfully parsed WebVTT arg
+  }
+
+  return 0;  // not a WebVTT arg
+}
+
+}  // end namespace
 
 int main(int argc, char* argv[]) {
-  using mkvmuxer::uint64;
-
   char* input = NULL;
   char* output = NULL;
 
@@ -63,13 +146,14 @@ int main(int argc, char* argv[]) {
   bool output_audio = true;
   bool live_mode = false;
   bool output_cues = true;
+  bool cues_before_clusters = false;
   bool cues_on_video_track = true;
-  bool cues_on_audio_track = true;
+  bool cues_on_audio_track = false;
   uint64 max_cluster_duration = 0;
   uint64 max_cluster_size = 0;
   bool switch_tracks = false;
-  int audio_track_number = 0; // 0 tells muxer to decide.
-  int video_track_number = 0; // 0 tells muxer to decide.
+  int audio_track_number = 0;  // 0 tells muxer to decide.
+  int video_track_number = 0;  // 0 tells muxer to decide.
   bool chunking = false;
   const char* chunk_name = NULL;
 
@@ -79,52 +163,65 @@ int main(int argc, char* argv[]) {
   uint64 display_height = 0;
   uint64 stereo_mode = 0;
 
+  metadata_files_t metadata_files;
+
+  const int argc_check = argc - 1;
   for (int i = 1; i < argc; ++i) {
     char* end;
 
     if (!strcmp("-h", argv[i]) || !strcmp("-?", argv[i])) {
       Usage();
       return EXIT_SUCCESS;
-    } else if (!strcmp("-i", argv[i])) {
+    } else if (!strcmp("-i", argv[i]) && i < argc_check) {
       input = argv[++i];
-    } else if (!strcmp("-o", argv[i])) {
+    } else if (!strcmp("-o", argv[i]) && i < argc_check) {
       output = argv[++i];
-    } else if (!strcmp("-video", argv[i])) {
+    } else if (!strcmp("-video", argv[i]) && i < argc_check) {
       output_video = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-audio", argv[i])) {
+    } else if (!strcmp("-audio", argv[i]) && i < argc_check) {
       output_audio = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-live", argv[i])) {
+    } else if (!strcmp("-live", argv[i]) && i < argc_check) {
       live_mode = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-output_cues", argv[i])) {
+    } else if (!strcmp("-output_cues", argv[i]) && i < argc_check) {
       output_cues = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-cues_on_video_track", argv[i])) {
+    } else if (!strcmp("-cues_before_clusters", argv[i]) && i < argc_check) {
+      cues_before_clusters = strtol(argv[++i], &end, 10) == 0 ? false : true;
+    } else if (!strcmp("-cues_on_video_track", argv[i]) && i < argc_check) {
       cues_on_video_track = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-cues_on_audio_track", argv[i])) {
+      if (cues_on_video_track)
+        cues_on_audio_track = false;
+    } else if (!strcmp("-cues_on_audio_track", argv[i]) && i < argc_check) {
       cues_on_audio_track = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-max_cluster_duration", argv[i])) {
+      if (cues_on_audio_track)
+        cues_on_video_track = false;
+    } else if (!strcmp("-max_cluster_duration", argv[i]) && i < argc_check) {
       const double seconds = strtod(argv[++i], &end);
       max_cluster_duration =
           static_cast<uint64>(seconds * 1000000000.0);
-    } else if (!strcmp("-max_cluster_size", argv[i])) {
+    } else if (!strcmp("-max_cluster_size", argv[i]) && i < argc_check) {
       max_cluster_size = strtol(argv[++i], &end, 10);
-    } else if (!strcmp("-switch_tracks", argv[i])) {
+    } else if (!strcmp("-switch_tracks", argv[i]) && i < argc_check) {
       switch_tracks = strtol(argv[++i], &end, 10) == 0 ? false : true;
-    } else if (!strcmp("-audio_track_number", argv[i])) {
+    } else if (!strcmp("-audio_track_number", argv[i]) && i < argc_check) {
       audio_track_number = strtol(argv[++i], &end, 10);
-    } else if (!strcmp("-video_track_number", argv[i])) {
+    } else if (!strcmp("-video_track_number", argv[i]) && i < argc_check) {
       video_track_number = strtol(argv[++i], &end, 10);
-    } else if (!strcmp("-chunking", argv[i])) {
+    } else if (!strcmp("-chunking", argv[i]) && i < argc_check) {
       chunking = true;
       chunk_name = argv[++i];
-    } else if (!strcmp("-display_width", argv[i])) {
+    } else if (!strcmp("-display_width", argv[i]) && i < argc_check) {
       display_width = strtol(argv[++i], &end, 10);
-    } else if (!strcmp("-display_height", argv[i])) {
+    } else if (!strcmp("-display_height", argv[i]) && i < argc_check) {
       display_height = strtol(argv[++i], &end, 10);
-    } else if (!strcmp("-stereo_mode", argv[i])) {
+    } else if (!strcmp("-stereo_mode", argv[i]) && i < argc_check) {
       stereo_mode = strtol(argv[++i], &end, 10);
-    } else if (!strcmp("-output_cues_block_number", argv[i])) {
+    } else if (!strcmp("-output_cues_block_number", argv[i]) &&
+               i < argc_check) {
       output_cues_block_number =
           strtol(argv[++i], &end, 10) == 0 ? false : true;
+    } else if (int e = ParseArgWebVTT(argv, &i, argc_check, &metadata_files)) {
+      if (e < 0)
+        return EXIT_FAILURE;
     }
   }
 
@@ -166,7 +263,8 @@ int main(int argc, char* argv[]) {
   // Set muxer header info
   mkvmuxer::MkvWriter writer;
 
-  if (!writer.Open(output)) {
+  char* temp_file = tmpnam(NULL);
+  if (!writer.Open(cues_before_clusters ? temp_file : output)) {
     printf("\n Filename is invalid or error while opening.\n");
     return EXIT_FAILURE;
   }
@@ -199,11 +297,12 @@ int main(int argc, char* argv[]) {
   info->set_writing_app("sample_muxer");
 
   // Set Tracks element attributes
-  enum { kVideoTrack = 1, kAudioTrack = 2 };
   const mkvparser::Tracks* const parser_tracks = parser_segment->GetTracks();
   unsigned long i = 0;
-  uint64 vid_track = 0; // no track added
-  uint64 aud_track = 0; // no track added
+  uint64 vid_track = 0;  // no track added
+  uint64 aud_track = 0;  // no track added
+
+  using mkvparser::Track;
 
   while (i != parser_tracks->GetTracksCount()) {
     int track_num = i++;
@@ -221,7 +320,7 @@ int main(int argc, char* argv[]) {
 
     const long long track_type = parser_track->GetType();
 
-    if (track_type == kVideoTrack && output_video) {
+    if (track_type == Track::kVideo && output_video) {
       // Get the video track from the parser
       const mkvparser::VideoTrack* const pVideoTrack =
           static_cast<const mkvparser::VideoTrack*>(parser_track);
@@ -259,7 +358,7 @@ int main(int argc, char* argv[]) {
       if (rate > 0.0) {
         video->set_frame_rate(rate);
       }
-    } else if (track_type == kAudioTrack && output_audio) {
+    } else if (track_type == Track::kAudio && output_audio) {
       // Get the audio track from the parser
       const mkvparser::AudioTrack* const pAudioTrack =
           static_cast<const mkvparser::AudioTrack*>(parser_track);
@@ -302,6 +401,24 @@ int main(int argc, char* argv[]) {
     }
   }
 
+  // We have created all the video and audio tracks.  If any WebVTT
+  // files were specified as command-line args, then parse them and
+  // add a track to the output file corresponding to each metadata
+  // input file.
+
+  SampleMuxerMetadata metadata;
+
+  if (!metadata.Init(&muxer_segment)) {
+    printf("\n Could not initialize metadata cache.\n");
+    return EXIT_FAILURE;
+  }
+
+  if (!LoadMetadataFiles(metadata_files, &metadata))
+    return EXIT_FAILURE;
+
+  if (!metadata.AddChapters())
+    return EXIT_FAILURE;
+
   // Set Cues element attributes
   mkvmuxer::Cues* const cues = muxer_segment.GetCues();
   cues->set_output_block_number(output_cues_block_number);
@@ -317,7 +434,14 @@ int main(int argc, char* argv[]) {
   const mkvparser::Cluster* cluster = parser_segment->GetFirst();
 
   while ((cluster != NULL) && !cluster->EOS()) {
-    const mkvparser::BlockEntry* block_entry = cluster->GetFirst();
+    const mkvparser::BlockEntry* block_entry;
+
+    long status = cluster->GetFirst(block_entry);
+
+    if (status) {
+        printf("\n Could not get first block of cluster.\n");
+        return EXIT_FAILURE;
+    }
 
     while ((block_entry != NULL) && !block_entry->EOS()) {
       const mkvparser::Block* const block = block_entry->GetBlock();
@@ -326,11 +450,16 @@ int main(int argc, char* argv[]) {
           parser_tracks->GetTrackByNumber(
               static_cast<unsigned long>(trackNum));
       const long long track_type = parser_track->GetType();
+      const long long time_ns = block->GetTime(cluster);
 
-      if ((track_type == kAudioTrack && output_audio) ||
-          (track_type == kVideoTrack && output_video)) {
+      // Flush any metadata frames to the output file, before we write
+      // the current block.
+      if (!metadata.Write(time_ns))
+        return EXIT_FAILURE;
+
+      if ((track_type == Track::kAudio && output_audio) ||
+          (track_type == Track::kVideo && output_video)) {
         const int frame_count = block->GetFrameCount();
-        const long long time_ns = block->GetTime(cluster);
         const bool is_key = block->IsKey();
 
         for (int i = 0; i < frame_count; ++i) {
@@ -348,7 +477,7 @@ int main(int argc, char* argv[]) {
             return EXIT_FAILURE;
 
           uint64 track_num = vid_track;
-          if (track_type == kAudioTrack)
+          if (track_type == Track::kAudio)
             track_num = aud_track;
 
           if (!muxer_segment.AddFrame(data,
@@ -362,22 +491,50 @@ int main(int argc, char* argv[]) {
         }
       }
 
-      block_entry = cluster->GetNext(block_entry);
+      status = cluster->GetNext(block_entry, block_entry);
+
+      if (status) {
+          printf("\n Could not get next block of cluster.\n");
+          return EXIT_FAILURE;
+      }
     }
 
     cluster = parser_segment->GetNext(cluster);
   }
 
-  muxer_segment.Finalize();
+  // We have exhausted all video and audio frames in the input file.
+  // Flush any remaining metadata frames to the output file.
+  if (!metadata.Write(-1))
+    return EXIT_FAILURE;
+
+  if (!muxer_segment.Finalize()) {
+    printf("Finalization of segment failed.\n");
+    return EXIT_FAILURE;
+  }
+
+  reader.Close();
+  writer.Close();
+
+  if (cues_before_clusters) {
+    if (reader.Open(temp_file)) {
+      printf("\n Filename is invalid or error while opening.\n");
+      return EXIT_FAILURE;
+    }
+    if (!writer.Open(output)) {
+      printf("\n Filename is invalid or error while opening.\n");
+      return EXIT_FAILURE;
+    }
+    if (!muxer_segment.CopyAndMoveCuesBeforeClusters(&reader, &writer)) {
+      printf("\n Unable to copy and move cues before clusters.\n");
+      return EXIT_FAILURE;
+    }
+    reader.Close();
+    writer.Close();
+    remove(temp_file);
+  }
 
   delete [] data;
   delete parser_segment;
 
-  writer.Close();
-  reader.Close();
-
   return EXIT_SUCCESS;
 }
-
-
-

sample_muxer_2008.vcproj

@@ -1,197 +1,179 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9.00"
-	Name="sample_muxer"
-	ProjectGUID="{B407561F-1F5E-4798-B9C2-81AB09CFBC16}"
-	RootNamespace="sample_muxer"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				AdditionalIncludeDirectories="../"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="..\Debug\libwebm.lib"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="2"
-				EnableIntrinsicFunctions="true"
-				AdditionalIncludeDirectories="../"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
-				RuntimeLibrary="0"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="..\Release\libwebm.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
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-		</Configuration>
-	</Configurations>
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-	<Files>
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-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\sample_muxer.cpp"
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-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
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-			Name="Resource Files"
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-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="sample_muxer"
+	ProjectGUID="{B407561F-1F5E-4798-B9C2-81AB09CFBC16}"
+	RootNamespace="sample_muxer"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(ProjectDir)..\exe\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(ProjectDir)..\obj\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="../"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="1"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="$(ProjectDir)..\lib\libwebm_2008\libwebm\$(PlatformName)\$(ConfigurationName)\libwebm.lib"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(ProjectDir)..\exe\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(ProjectDir)..\obj\libwebm_2008\$(ProjectName)\$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				AdditionalIncludeDirectories="../"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="$(ProjectDir)..\lib\libwebm_2008\libwebm\$(PlatformName)\$(ConfigurationName)\libwebm.lib"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<File
+			RelativePath=".\sample_muxer.cpp"
+			>
+		</File>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>

sample_muxer_2010.vcxproj

@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug DLL|Win32">
+      <Configuration>Debug DLL</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release DLL|Win32">
+      <Configuration>Release DLL</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>sample_muxer</ProjectName>
+    <ProjectGuid>{B407561F-1F5E-4798-B9C2-81AB09CFBC16}</ProjectGuid>
+    <RootNamespace>sample_muxer</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">true</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>../;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug DLL|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>../;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <AdditionalIncludeDirectories>../;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <AdditionalIncludeDirectories>../;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="sample_muxer.cpp" />
+    <ClCompile Include="sample_muxer_metadata.cc" />
+    <ClCompile Include="vttreader.cc" />
+    <ClCompile Include="webvttparser.cc" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="libwebm_2010.vcxproj">
+      <Project>{7b1f12ca-0724-430b-b61a-1d357c912cba}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="sample_muxer_metadata.h" />
+    <ClInclude Include="vttreader.h" />
+    <ClInclude Include="webvttparser.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

sample_muxer_2010.vcxproj.filters

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="sample_muxer.cpp" />
+    <ClCompile Include="sample_muxer_metadata.cc" />
+    <ClCompile Include="vttreader.cc" />
+    <ClCompile Include="webvttparser.cc" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="sample_muxer_metadata.h" />
+    <ClInclude Include="vttreader.h" />
+    <ClInclude Include="webvttparser.h" />
+  </ItemGroup>
+</Project>

sample_muxer_metadata.cc

@@ -0,0 +1,379 @@
+#include "sample_muxer_metadata.h"
+#include <string>
+#include "vttreader.h"
+
+SampleMuxerMetadata::SampleMuxerMetadata() : segment_(NULL) {
+}
+
+bool SampleMuxerMetadata::Init(mkvmuxer::Segment* segment) {
+  if (segment == NULL || segment_ != NULL)
+    return false;
+
+  segment_ = segment;
+  return true;
+}
+
+bool SampleMuxerMetadata::Load(const char* file, Kind kind) {
+  if (kind == kChapters)
+    return LoadChapters(file);
+
+  mkvmuxer::uint64 track_num;
+
+  if (!AddTrack(kind, &track_num)) {
+    printf("Unable to add track for WebVTT file \"%s\"\n", file);
+    return false;
+  }
+
+  return Parse(file, kind, track_num);
+}
+
+bool SampleMuxerMetadata::AddChapters() {
+  typedef cue_list_t::const_iterator iter_t;
+  iter_t i = chapter_cues_.begin();
+  const iter_t j = chapter_cues_.end();
+
+  while (i != j) {
+    const cue_t& chapter = *i++;
+
+    if (!AddChapter(chapter))
+      return false;
+  }
+
+  return true;
+}
+
+bool SampleMuxerMetadata::Write(mkvmuxer::int64 time_ns) {
+  typedef cues_set_t::iterator iter_t;
+
+  iter_t i = cues_set_.begin();
+  const iter_t j = cues_set_.end();
+
+  while (i != j) {
+    const cues_set_t::value_type& v = *i;
+
+    if (time_ns >= 0 && v > time_ns)
+      return true;  // nothing else to do just yet
+
+    if (!v.Write(segment_)) {
+      printf("\nCould not add metadata.\n");
+      return false;  // error
+    }
+
+    cues_set_.erase(i++);
+  }
+
+  return true;
+}
+
+bool SampleMuxerMetadata::LoadChapters(const char* file) {
+  if (!chapter_cues_.empty()) {
+    printf("Support for more than one chapters file is not yet implemented\n");
+    return false;
+  }
+
+  cue_list_t cues;
+
+  if (!ParseChapters(file, &cues))
+    return false;
+
+  // TODO(matthewjheaney): support more than one chapters file
+  chapter_cues_.swap(cues);
+
+  return true;
+}
+
+bool SampleMuxerMetadata::ParseChapters(
+    const char* file,
+    cue_list_t* cues_ptr) {
+  cue_list_t& cues = *cues_ptr;
+  cues.clear();
+
+  libwebvtt::VttReader r;
+  int e = r.Open(file);
+
+  if (e) {
+    printf("Unable to open WebVTT file: \"%s\"\n", file);
+    return false;
+  }
+
+  libwebvtt::Parser p(&r);
+  e = p.Init();
+
+  if (e < 0) {  // error
+    printf("Error parsing WebVTT file: \"%s\"\n", file);
+    return false;
+  }
+
+  libwebvtt::Time t;
+  t.hours = -1;
+
+  for (;;) {
+    cue_t c;
+    e = p.Parse(&c);
+
+    if (e < 0) {  // error
+      printf("Error parsing WebVTT file: \"%s\"\n", file);
+      return false;
+    }
+
+    if (e > 0)  // EOF
+      return true;
+
+    if (c.start_time < t) {
+      printf("bad WebVTT cue timestamp (out-of-order)\n");
+      return false;
+    }
+
+    if (c.stop_time < c.start_time) {
+      printf("bad WebVTT cue timestamp (stop < start)\n");
+      return false;
+    }
+
+    t = c.start_time;
+    cues.push_back(c);
+  }
+}
+
+bool SampleMuxerMetadata::AddChapter(const cue_t& cue) {
+  // TODO(matthewjheaney): support language and country
+
+  mkvmuxer::Chapter* const chapter = segment_->AddChapter();
+
+  if (chapter == NULL) {
+    printf("Unable to add chapter\n");
+    return false;
+  }
+
+  if (cue.identifier.empty()) {
+    chapter->set_id(NULL);
+  } else {
+    const char* const id = cue.identifier.c_str();
+    if (!chapter->set_id(id)) {
+      printf("Unable to set chapter id\n");
+      return false;
+    }
+  }
+
+  typedef libwebvtt::presentation_t time_ms_t;
+  const time_ms_t start_time_ms = cue.start_time.presentation();
+  const time_ms_t stop_time_ms = cue.stop_time.presentation();
+
+  enum { kNsPerMs = 1000000 };
+  const mkvmuxer::uint64 start_time_ns = start_time_ms * kNsPerMs;
+  const mkvmuxer::uint64 stop_time_ns = stop_time_ms * kNsPerMs;
+
+  chapter->set_time(*segment_, start_time_ns, stop_time_ns);
+
+  typedef libwebvtt::Cue::payload_t::const_iterator iter_t;
+  iter_t i = cue.payload.begin();
+  const iter_t j = cue.payload.end();
+
+  std::string title;
+
+  for (;;) {
+    title += *i++;
+
+    if (i == j)
+      break;
+
+    enum { kLF = '\x0A' };
+    title += kLF;
+  }
+
+  if (!chapter->add_string(title.c_str(), NULL, NULL)) {
+    printf("Unable to set chapter title\n");
+    return false;
+  }
+
+  return true;
+}
+
+bool SampleMuxerMetadata::AddTrack(
+    Kind kind,
+    mkvmuxer::uint64* track_num) {
+  *track_num = 0;
+
+  // Track number value 0 means "let muxer choose track number"
+  mkvmuxer::Track* const track = segment_->AddTrack(0);
+
+  if (track == NULL)  // error
+    return false;
+
+  // Return the track number value chosen by the muxer
+  *track_num = track->number();
+
+  int type;
+  const char* codec_id;
+
+  switch (kind) {
+    case kSubtitles:
+      type = 0x11;
+      codec_id = "D_WEBVTT/SUBTITLES";
+      break;
+
+    case kCaptions:
+      type = 0x11;
+      codec_id = "D_WEBVTT/CAPTIONS";
+      break;
+
+    case kDescriptions:
+      type = 0x21;
+      codec_id = "D_WEBVTT/DESCRIPTIONS";
+      break;
+
+    case kMetadata:
+      type = 0x21;
+      codec_id = "D_WEBVTT/METADATA";
+      break;
+
+    default:
+      return false;
+  }
+
+  track->set_type(type);
+  track->set_codec_id(codec_id);
+
+  // TODO(matthewjheaney): set name and language
+
+  return true;
+}
+
+bool SampleMuxerMetadata::Parse(
+    const char* file,
+    Kind /* kind */,
+    mkvmuxer::uint64 track_num) {
+  libwebvtt::VttReader r;
+  int e = r.Open(file);
+
+  if (e) {
+    printf("Unable to open WebVTT file: \"%s\"\n", file);
+    return false;
+  }
+
+  libwebvtt::Parser p(&r);
+
+  e = p.Init();
+
+  if (e < 0) {  // error
+    printf("Error parsing WebVTT file: \"%s\"\n", file);
+    return false;
+  }
+
+  SortableCue cue;
+  cue.track_num = track_num;
+
+  libwebvtt::Time t;
+  t.hours = -1;
+
+  for (;;) {
+    cue_t& c = cue.cue;
+    e = p.Parse(&c);
+
+    if (e < 0) {  // error
+      printf("Error parsing WebVTT file: \"%s\"\n", file);
+      return false;
+    }
+
+    if (e > 0)  // EOF
+      return true;
+
+    if (c.start_time >= t) {
+      t = c.start_time;
+    } else {
+      printf("bad WebVTT cue timestamp (out-of-order)\n");
+      return false;
+    }
+
+    if (c.stop_time < c.start_time) {
+      printf("bad WebVTT cue timestamp (stop < start)\n");
+      return false;
+    }
+
+    cues_set_.insert(cue);
+  }
+}
+
+void SampleMuxerMetadata::MakeFrame(const cue_t& c, std::string* pf) {
+  pf->clear();
+  WriteCueIdentifier(c.identifier, pf);
+  WriteCueSettings(c.settings, pf);
+  WriteCuePayload(c.payload, pf);
+}
+
+void SampleMuxerMetadata::WriteCueIdentifier(
+    const std::string& identifier,
+    std::string* pf) {
+  pf->append(identifier);
+  pf->push_back('\x0A');  // LF
+}
+
+void SampleMuxerMetadata::WriteCueSettings(
+    const cue_t::settings_t& settings,
+    std::string* pf) {
+  if (settings.empty()) {
+    pf->push_back('\x0A');  // LF
+    return;
+  }
+
+  typedef cue_t::settings_t::const_iterator iter_t;
+
+  iter_t i = settings.begin();
+  const iter_t j = settings.end();
+
+  for (;;) {
+    const libwebvtt::Setting& setting = *i++;
+
+    pf->append(setting.name);
+    pf->push_back(':');
+    pf->append(setting.value);
+
+    if (i == j)
+      break;
+
+    pf->push_back(' ');  // separate settings with whitespace
+  }
+
+  pf->push_back('\x0A');  // LF
+}
+
+void SampleMuxerMetadata::WriteCuePayload(
+    const cue_t::payload_t& payload,
+    std::string* pf) {
+  typedef cue_t::payload_t::const_iterator iter_t;
+
+  iter_t i = payload.begin();
+  const iter_t j = payload.end();
+
+  while (i != j) {
+    const std::string& line = *i++;
+    pf->append(line);
+    pf->push_back('\x0A');  // LF
+  }
+}
+
+bool SampleMuxerMetadata::SortableCue::Write(
+    mkvmuxer::Segment* segment) const {
+  // Cue start time expressed in milliseconds
+  const mkvmuxer::int64 start_ms = cue.start_time.presentation();
+
+  // Cue start time expressed in nanoseconds (MKV time)
+  const mkvmuxer::int64 start_ns = start_ms * 1000000;
+
+  // Cue stop time expressed in milliseconds
+  const mkvmuxer::int64 stop_ms = cue.stop_time.presentation();
+
+  // Cue stop time expressed in nanonseconds
+  const mkvmuxer::int64 stop_ns = stop_ms * 1000000;
+
+  // Metadata blocks always specify the block duration.
+  const mkvmuxer::int64 duration_ns = stop_ns - start_ns;
+
+  std::string frame;
+  MakeFrame(cue, &frame);
+
+  typedef const mkvmuxer::uint8* data_t;
+  const data_t buf = reinterpret_cast<data_t>(frame.data());
+  const mkvmuxer::uint64 len = frame.length();
+
+  return segment->AddMetadata(buf, len, track_num, start_ns, duration_ns);
+}

sample_muxer_metadata.h

@@ -0,0 +1,135 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#ifndef SAMPLE_MUXER_METADATA_H_  // NOLINT
+#define SAMPLE_MUXER_METADATA_H_
+
+#include <list>
+#include <set>
+
+#include "mkvmuxer.hpp"
+#include "webvttparser.h"
+
+class SampleMuxerMetadata {
+ public:
+  enum Kind {
+    kSubtitles,
+    kCaptions,
+    kDescriptions,
+    kMetadata,
+    kChapters
+  };
+
+  SampleMuxerMetadata();
+
+  // Bind this metadata object to the muxer instance.  Returns false
+  // if segment equals NULL, or Init has already been called.
+  bool Init(mkvmuxer::Segment* segment);
+
+  // Parse the WebVTT file |filename| having the indicated |kind|, and
+  // create a corresponding track (or chapters element) in the
+  // segment.  Returns false on error.
+  bool Load(const char* filename, Kind kind);
+
+  bool AddChapters();
+
+  // Write any WebVTT cues whose time is less or equal to |time_ns| as
+  // a metadata block in its corresponding track.  If |time_ns| is
+  // negative, write all remaining cues. Returns false on error.
+  bool Write(mkvmuxer::int64 time_ns);
+
+ private:
+  typedef libwebvtt::Cue cue_t;
+
+  // Used to sort cues as they are loaded.
+  struct SortableCue {
+    bool operator>(mkvmuxer::int64 time_ns) const {
+      // Cue start time expressed in milliseconds
+      const mkvmuxer::int64 start_ms = cue.start_time.presentation();
+
+      // Cue start time expressed in nanoseconds (MKV time)
+      const mkvmuxer::int64 start_ns = start_ms * 1000000;
+
+      return (start_ns > time_ns);
+    }
+
+    bool operator<(const SortableCue& rhs) const {
+      if (cue.start_time < rhs.cue.start_time)
+        return true;
+
+      if (cue.start_time > rhs.cue.start_time)
+        return false;
+
+      return (track_num < rhs.track_num);
+    }
+
+    // Write this cue as a metablock to |segment|.  Returns false on
+    // error.
+    bool Write(mkvmuxer::Segment* segment) const;
+
+    mkvmuxer::uint64 track_num;
+    cue_t cue;
+  };
+
+  typedef std::multiset<SortableCue> cues_set_t;
+  typedef std::list<cue_t> cue_list_t;
+
+  // Parse the WebVTT cues in the named |file|, returning false on
+  // error.  We handle chapters as a special case, because they are
+  // stored in their own, dedicated level-1 element.
+  bool LoadChapters(const char* file);
+
+  // Parse the WebVTT chapters in |file| to populate |cues|.  Returns
+  // false on error.
+  static bool ParseChapters(const char* file,
+                            cue_list_t* cues);
+
+  // Adds WebVTT cue |chapter| to the chapters element of the output
+  // file's segment element.  Returns false on error.
+  bool AddChapter(const cue_t& chapter);
+
+  // Add a metadata track to the segment having the indicated |kind|,
+  // returning the |track_num| that has been chosen for this track.
+  // Returns false on error.
+  bool AddTrack(Kind kind, mkvmuxer::uint64* track_num);
+
+  // Parse the WebVTT |file| having the indicated |kind| and
+  // |track_num|, adding each parsed cue to cues set.  Returns false
+  // on error.
+  bool Parse(const char* file, Kind kind, mkvmuxer::uint64 track_num);
+
+  // Converts a WebVTT cue to a Matroska metadata block.
+  static void MakeFrame(const cue_t& cue, std::string* frame);
+
+  // Populate the cue identifier part of the metadata block.
+  static void WriteCueIdentifier(const std::string& identifier,
+                                 std::string* frame);
+
+  // Populate the cue settings part of the metadata block.
+  static void WriteCueSettings(const cue_t::settings_t& settings,
+                               std::string* frame);
+
+  // Populate the payload part of the metadata block.
+  static void WriteCuePayload(const cue_t::payload_t& payload,
+                              std::string* frame);
+
+  mkvmuxer::Segment* segment_;
+
+  // Set of cues ordered by time and then by track number.
+  cues_set_t cues_set_;
+
+  // The cues that will be used to populate the Chapters level-1
+  // element of the output file.
+  cue_list_t chapter_cues_;
+
+  // Disable copy ctor and copy assign.
+  SampleMuxerMetadata(const SampleMuxerMetadata&);
+  SampleMuxerMetadata& operator=(const SampleMuxerMetadata&);
+};
+
+#endif  // SAMPLE_MUXER_METADATA_H_  // NOLINT

vttreader.cc

@@ -0,0 +1,57 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#include "./vttreader.h"  // NOLINT
+
+namespace libwebvtt {
+
+VttReader::VttReader() : file_(NULL) {
+}
+
+VttReader::~VttReader() {
+  Close();
+}
+
+int VttReader::Open(const char* filename) {
+  if (filename == NULL || file_ != NULL)
+    return -1;
+
+  file_ = fopen(filename, "rb");
+  if (file_ == NULL)
+    return -1;
+
+  return 0;  // success
+}
+
+void VttReader::Close() {
+  if (file_) {
+    fclose(file_);
+    file_ = NULL;
+  }
+}
+
+int VttReader::GetChar(char* c) {
+  if (c == NULL || file_ == NULL)
+    return -1;
+
+  const int result = fgetc(file_);
+  if (result != EOF) {
+    *c = static_cast<char>(result);
+    return 0;  // success
+  }
+
+  if (ferror(file_))
+    return -1;  // error
+
+  if (feof(file_))
+    return 1;  // EOF
+
+  return -1;  // weird
+}
+
+}  // namespace libwebvtt

vttreader.h

@@ -0,0 +1,44 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#ifndef VTTREADER_H_  // NOLINT
+#define VTTREADER_H_
+
+#include <cstdio>
+#include "./webvttparser.h"
+
+namespace libwebvtt {
+
+class VttReader : public libwebvtt::Reader {
+ public:
+  VttReader();
+  virtual ~VttReader();
+
+  // Open the file identified by |filename| in read-only mode, as a
+  // binary stream of bytes.  Returns 0 on success, negative if error.
+  int Open(const char* filename);
+
+  // Closes the file stream.  Note that the stream is automatically
+  // closed when the VttReader object is destroyed.
+  void Close();
+
+  // Reads the next character in the file stream, as per the semantics
+  // of Reader::GetChar.  Returns negative if error, 0 on success, and
+  // positive if end-of-stream has been reached.
+  virtual int GetChar(char* c);
+
+ private:
+  FILE* file_;
+
+  VttReader(const VttReader&);
+  VttReader& operator=(const VttReader&);
+};
+
+}  // namespace libwebvtt
+
+#endif  // VTTREADER_H_  // NOLINT

webmids.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
@@ -53,6 +53,10 @@ enum MkvId {
   kMkvReferenceBlock          = 0xFB,
   kMkvLaceNumber              = 0xCC,
   kMkvSimpleBlock             = 0xA3,
+  kMkvBlockAdditions          = 0x75A1,
+  kMkvBlockMore               = 0xA6,
+  kMkvBlockAddID              = 0xEE,
+  kMkvBlockAdditional         = 0xA5,
   //Track
   kMkvTracks                  = 0x1654AE6B,
   kMkvTrackEntry              = 0xAE,
@@ -69,10 +73,12 @@ enum MkvId {
   kMkvCodecID                 = 0x86,
   kMkvCodecPrivate            = 0x63A2,
   kMkvCodecName               = 0x258688,
+  kMkvMaxBlockAdditionID      = 0x55EE,
   //video
   kMkvVideo                   = 0xE0,
   kMkvFlagInterlaced          = 0x9A,
   kMkvStereoMode              = 0x53B8,
+  kMkvAlphaMode               = 0x53C0,
   kMkvPixelWidth              = 0xB0,
   kMkvPixelHeight             = 0xBA,
   kMkvPixelCropBottom         = 0x54AA,
@@ -101,6 +107,9 @@ enum MkvId {
   kMkvContentEncryption       = 0x5035,
   kMkvContentEncAlgo          = 0x47E1,
   kMkvContentEncKeyID         = 0x47E2,
+  kMkvContentEncAESSettings   = 0x47E7,
+  kMkvAESSettingsCipherMode   = 0x47E8,
+  kMkvAESSettingsCipherInitData = 0x47E9,
   //end ContentEncodings
   //Cueing Data
   kMkvCues                    = 0x1C53BB6B,
@@ -110,8 +119,20 @@ enum MkvId {
   kMkvCueTrack                = 0xF7,
   kMkvCueClusterPosition      = 0xF1,
   kMkvCueBlockNumber          = 0x5378,
+  //Chapters
+  kMkvChapters                = 0x1043A770,
+  kMkvEditionEntry            = 0x45B9,
+  kMkvChapterAtom             = 0xB6,
+  kMkvChapterUID              = 0x73C4,
+  kMkvChapterStringUID        = 0x5654,
+  kMkvChapterTimeStart        = 0x91,
+  kMkvChapterTimeEnd          = 0x92,
+  kMkvChapterDisplay          = 0x80,
+  kMkvChapString              = 0x85,
+  kMkvChapLanguage            = 0x437C,
+  kMkvChapCountry             = 0x437E
 };
 
 }  // end namespace mkvmuxer
 
-#endif // WEBMIDS_HPP
+#endif // WEBMIDS_HPP

webvttparser.cc

@@ -0,0 +1,725 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#include "./webvttparser.h"  // NOLINT
+#include <climits>
+
+namespace libwebvtt {
+
+enum {
+  kNUL = '\x00',
+  kSPACE = ' ',
+  kTAB = '\x09',
+  kLF = '\x0A',
+  kCR = '\x0D'
+};
+
+Reader::~Reader() {
+}
+
+LineReader::~LineReader() {
+}
+
+int LineReader::GetLine(std::string* line_ptr) {
+  if (line_ptr == NULL)
+    return -1;
+
+  std::string& ln = *line_ptr;
+  ln.clear();
+
+  // Consume characters from the stream, until we
+  // reach end-of-line (or end-of-stream).
+
+  // The WebVTT spec states that lines may be
+  // terminated in any of these three ways:
+  //  LF
+  //  CR
+  //  CR LF
+
+  // We interrogate each character as we read it from the stream.
+  // If we detect an end-of-line character, we consume the full
+  // end-of-line indication, and we're done; otherwise, accumulate
+  // the character and repeat.
+
+  for (;;) {
+    char c;
+    const int e = GetChar(&c);
+
+    if (e < 0)  // error
+      return e;
+
+    if (e > 0)  // EOF
+      return (ln.empty()) ? 1 : 0;
+
+    // We have a character, so we must first determine
+    // whether we have reached end-of-line.
+
+    if (c == kLF)
+      return 0;  // handle the easy end-of-line case immediately
+
+    if (c == kCR)
+      break;  // handle the hard end-of-line case outside of loop
+
+    if (c == '\xFE' || c == '\xFF')  // not UTF-8
+      return -1;
+
+    // To defend against pathological or malicious streams, we
+    // cap the line length at some arbitrarily-large value:
+    enum { kMaxLineLength = 10000 };  // arbitrary
+
+    if (ln.length() >= kMaxLineLength)
+      return -1;
+
+    // We don't have an end-of-line character, so accumulate
+    // the character in our line buffer.
+    ln.push_back(c);
+  }
+
+  // We detected a CR.  We must interrogate the next character
+  // in the stream, to determine whether we have a LF (which
+  // would make it part of this same line).
+
+  char c;
+  const int e = GetChar(&c);
+
+  if (e < 0)  // error
+    return e;
+
+  if (e > 0)  // EOF
+    return 0;
+
+  // If next character in the stream is not a LF, return it
+  // to the stream (because it's part of the next line).
+  if (c != kLF)
+    UngetChar(c);
+
+  return 0;
+}
+
+Parser::Parser(Reader* r) : reader_(r), unget_(-1) {
+}
+
+Parser::~Parser() {
+}
+
+int Parser::Init() {
+  int e = ParseBOM();
+
+  if (e < 0)  // error
+    return e;
+
+  if (e > 0)  // EOF
+    return -1;
+
+  // Parse "WEBVTT".  We read from the stream one character at-a-time, in
+  // order to defend against non-WebVTT streams (e.g. binary files) that don't
+  // happen to comprise lines of text demarcated with line terminators.
+
+  const char kId[] = "WEBVTT";
+
+  for (const char* p = kId; *p; ++p) {
+    char c;
+    e = GetChar(&c);
+
+    if (e < 0)  // error
+      return e;
+
+    if (e > 0)  // EOF
+      return -1;
+
+    if (c != *p)
+      return -1;
+  }
+
+  std::string line;
+
+  e = GetLine(&line);
+
+  if (e < 0)  // error
+    return e;
+
+  if (e > 0)  // EOF
+    return 0;  // weird but valid
+
+  if (!line.empty()) {
+    // Parse optional characters that follow "WEBVTT"
+
+    const char c = line[0];
+
+    if (c != kSPACE && c != kTAB)
+      return -1;
+  }
+
+  // The WebVTT spec requires that the "WEBVTT" line
+  // be followed by an empty line (to separate it from
+  // first cue).
+
+  e = GetLine(&line);
+
+  if (e < 0)  // error
+    return e;
+
+  if (e > 0)  // EOF
+    return 0;  // weird but we allow it
+
+  if (!line.empty())
+    return -1;
+
+  return 0;  // success
+}
+
+int Parser::Parse(Cue* cue) {
+  if (cue == NULL)
+    return -1;
+
+  // Parse first non-blank line
+
+  std::string line;
+  int e;
+
+  for (;;) {
+    e = GetLine(&line);
+
+    if (e)  // EOF is OK here
+      return e;
+
+    if (!line.empty())
+      break;
+  }
+
+  // A WebVTT cue comprises an optional cue identifier line followed
+  // by a (non-optional) timings line.  You determine whether you have
+  // a timings line by scanning for the arrow token, the lexeme of which
+  // may not appear in the cue identifier line.
+
+  const char kArrow[] = "-->";
+  std::string::size_type arrow_pos = line.find(kArrow);
+
+  if (arrow_pos != std::string::npos) {
+    // We found a timings line, which implies that we don't have a cue
+    // identifier.
+
+    cue->identifier.clear();
+  } else {
+    // We did not find a timings line, so we assume that we have a cue
+    // identifier line, and then try again to find the cue timings on
+    // the next line.
+
+    cue->identifier.swap(line);
+
+    e = GetLine(&line);
+
+    if (e < 0)  // error
+      return e;
+
+    if (e > 0)  // EOF
+      return -1;
+
+    arrow_pos = line.find(kArrow);
+
+    if (arrow_pos == std::string::npos)  // not a timings line
+      return -1;
+  }
+
+  e = ParseTimingsLine(&line,
+                       arrow_pos,
+                       &cue->start_time,
+                       &cue->stop_time,
+                       &cue->settings);
+
+  if (e)  // error
+    return e;
+
+  // The cue payload comprises all the non-empty
+  // lines that follow the timings line.
+
+  Cue::payload_t& p = cue->payload;
+  p.clear();
+
+  for (;;) {
+    e = GetLine(&line);
+
+    if (e < 0)  // error
+      return e;
+
+    if (line.empty())
+      break;
+
+    p.push_back(line);
+  }
+
+  if (p.empty())
+    return -1;
+
+  return 0;  // success
+}
+
+int Parser::GetChar(char* c) {
+  if (unget_ >= 0) {
+    *c = static_cast<char>(unget_);
+    unget_ = -1;
+    return 0;
+  }
+
+  return reader_->GetChar(c);
+}
+
+void Parser::UngetChar(char c) {
+  unget_ = static_cast<unsigned char>(c);
+}
+
+int Parser::ParseBOM() {
+  // Explanation of UTF-8 BOM:
+  // http://en.wikipedia.org/wiki/Byte_order_mark
+
+  static const char BOM[] = "\xEF\xBB\xBF";  // UTF-8 BOM
+
+  for (int i = 0; i < 3; ++i) {
+    char c;
+    int e = GetChar(&c);
+
+    if (e < 0)  // error
+      return e;
+
+    if (e > 0)  // EOF
+      return 1;
+
+    if (c != BOM[i]) {
+      if (i == 0) {  // we don't have a BOM
+        UngetChar(c);
+        return 0;  // success
+      }
+
+      // We started a BOM, so we must finish the BOM.
+      return -1;  // error
+    }
+  }
+
+  return 0;  // success
+}
+
+int Parser::ParseTimingsLine(
+    std::string* line_ptr,
+    std::string::size_type arrow_pos,
+    Time* start_time,
+    Time* stop_time,
+    Cue::settings_t* settings) {
+  if (line_ptr == NULL)
+    return -1;
+
+  std::string& line = *line_ptr;
+
+  if (arrow_pos == std::string::npos || arrow_pos >= line.length())
+    return -1;
+
+  // Place a NUL character at the start of the arrow token, in
+  // order to demarcate the start time from remainder of line.
+  line[arrow_pos] = kNUL;
+  std::string::size_type idx = 0;
+
+  int e = ParseTime(line, &idx, start_time);
+  if (e)  // error
+    return e;
+
+  // Detect any junk that follows the start time,
+  // but precedes the arrow symbol.
+
+  while (char c = line[idx]) {
+    if (c != kSPACE && c != kTAB)
+      return -1;
+    ++idx;
+  }
+
+  // Place a NUL character at the end of the line,
+  // so the scanner has a place to stop, and begin
+  // the scan just beyond the arrow token.
+
+  line.push_back(kNUL);
+  idx = arrow_pos + 3;
+
+  e = ParseTime(line, &idx, stop_time);
+  if (e)  // error
+    return e;
+
+  e = ParseSettings(line, idx, settings);
+  if (e)  // error
+    return e;
+
+  return 0;  // success
+}
+
+int Parser::ParseTime(
+    const std::string& line,
+    std::string::size_type* idx_ptr,
+    Time* time) {
+  if (idx_ptr == NULL)
+    return -1;
+
+  std::string::size_type& idx = *idx_ptr;
+
+  if (idx == std::string::npos || idx >= line.length())
+    return -1;
+
+  if (time == NULL)
+    return -1;
+
+  // Consume any whitespace that precedes the timestamp.
+
+  while (char c = line[idx]) {
+    if (c != kSPACE && c != kTAB)
+      break;
+    ++idx;
+  }
+
+  // WebVTT timestamp syntax comes in three flavors:
+  //  SS[.sss]
+  //  MM:SS[.sss]
+  //  HH:MM:SS[.sss]
+
+  // Parse a generic number value.  We don't know which component
+  // of the time we have yet, until we do more parsing.
+
+  int val = ParseNumber(line, &idx);
+
+  if (val < 0)  // error
+    return val;
+
+  Time& t = *time;
+
+  // The presence of a colon character indicates that we have
+  // an [HH:]MM:SS style syntax.
+
+  if (line[idx] == ':') {
+    // We have either HH:MM:SS or MM:SS
+
+    // The value we just parsed is either the hours or minutes.
+    // It must be followed by another number value (that is
+    // either minutes or seconds).
+
+    const int first_val = val;
+
+    ++idx;  // consume colon
+
+    // Parse second value
+
+    val = ParseNumber(line, &idx);
+
+    if (val < 0)
+      return val;
+
+    if (val >= 60)  // either MM or SS
+      return -1;
+
+    if (line[idx] == ':') {
+      // We have HH:MM:SS
+
+      t.hours = first_val;
+      t.minutes = val;  // vetted above
+
+      ++idx;  // consume MM:SS colon
+
+      // We have parsed the hours and minutes.
+      // We must now parse the seconds.
+
+      val = ParseNumber(line, &idx);
+
+      if (val < 0)
+        return val;
+
+      if (val >= 60)  // SS part of HH:MM:SS
+        return -1;
+
+      t.seconds = val;
+    } else {
+      // We have MM:SS
+
+      // The implication here is that the hour value was omitted
+      // from the timestamp (because it was 0).
+
+      if (first_val >= 60)  // minutes
+        return -1;
+
+      t.hours = 0;
+      t.minutes = first_val;
+      t.seconds = val;  // vetted above
+    }
+  } else {
+    // We have SS (only)
+
+    // The time is expressed as total number of seconds,
+    // so the seconds value has no upper bound.
+
+    t.seconds = val;
+
+    // Convert SS to HH:MM:SS
+
+    t.minutes = t.seconds / 60;
+    t.seconds -= t.minutes * 60;
+
+    t.hours = t.minutes / 60;
+    t.minutes -= t.hours * 60;
+  }
+
+  // We have parsed the hours, minutes, and seconds.
+  // We must now parse the milliseconds.
+
+  char c = line[idx];
+
+  // TODO(matthewjheaney): one option here is to slightly relax the
+  // syntax rules for WebVTT timestamps, to permit the comma character
+  // to also be used as the seconds/milliseconds separator.  This
+  // would handle streams that use localization conventions for
+  // countries in Western Europe.  For now we obey the rules specified
+  // in the WebVTT spec (allow "full stop" only).
+
+  const bool have_milliseconds = (c == '.');
+
+  if (!have_milliseconds) {
+    t.milliseconds = 0;
+  } else {
+    ++idx;  // consume FULL STOP
+
+    val = ParseNumber(line, &idx);
+
+    if (val < 0)
+      return val;
+
+    if (val >= 1000)
+      return -1;
+
+    if (val < 10)
+      t.milliseconds = val * 100;
+    else if (val < 100)
+      t.milliseconds = val * 10;
+    else
+      t.milliseconds = val;
+  }
+
+  // We have parsed the time proper.  We must check for any
+  // junk that immediately follows the time specifier.
+
+  c = line[idx];
+
+  if (c != kNUL && c != kSPACE && c != kTAB)
+    return -1;
+
+  return 0;  // success
+}
+
+int Parser::ParseSettings(
+    const std::string& line,
+    std::string::size_type idx,
+    Cue::settings_t* settings) {
+  settings->clear();
+
+  if (idx == std::string::npos || idx >= line.length())
+    return -1;
+
+  for (;;) {
+    // We must parse a line comprising a sequence of 0 or more
+    // NAME:VALUE pairs, separated by whitespace.  The line iself is
+    // terminated with a NUL char (indicating end-of-line).
+
+    for (;;) {
+      const char c = line[idx];
+
+      if (c == kNUL)  // end-of-line
+        return 0;  // success
+
+      if (c != kSPACE && c != kTAB)
+        break;
+
+      ++idx;  // consume whitespace
+    }
+
+    // We have consumed the whitespace, and have not yet reached
+    // end-of-line, so there is something on the line for us to parse.
+
+    settings->push_back(Setting());
+    Setting& s = settings->back();
+
+    // Parse the NAME part of the settings pair.
+
+    for (;;) {
+      const char c = line[idx];
+
+      if (c == ':')  // we have reached end of NAME part
+        break;
+
+      if (c == kNUL || c == kSPACE || c == kTAB)
+        return -1;
+
+      s.name.push_back(c);
+
+      ++idx;
+    }
+
+    if (s.name.empty())
+      return -1;
+
+    ++idx;  // consume colon
+
+    // Parse the VALUE part of the settings pair.
+
+    for (;;) {
+      const char c = line[idx];
+
+      if (c == kNUL || c == kSPACE || c == kTAB)
+        break;
+
+      if (c == ':')  // suspicious when part of VALUE
+        return -1;   // TODO(matthewjheaney): verify this behavior
+
+      s.value.push_back(c);
+
+      ++idx;
+    }
+
+    if (s.value.empty())
+      return -1;
+  }
+}
+
+int Parser::ParseNumber(
+    const std::string& line,
+    std::string::size_type* idx_ptr) {
+  if (idx_ptr == NULL)
+    return -1;
+
+  std::string::size_type& idx = *idx_ptr;
+
+  if (idx == std::string::npos || idx >= line.length())
+    return -1;
+
+  if (!isdigit(line[idx]))
+    return -1;
+
+  int result = 0;
+
+  while (isdigit(line[idx])) {
+    const char c = line[idx];
+    const int i = c - '0';
+
+    if (result > INT_MAX / 10)
+      return -1;
+
+    result *= 10;
+
+    if (result > INT_MAX - i)
+      return -1;
+
+    result += i;
+
+    ++idx;
+  }
+
+  return result;
+}
+
+bool Time::operator==(const Time& rhs) const {
+  if (hours != rhs.hours)
+    return false;
+
+  if (minutes != rhs.minutes)
+    return false;
+
+  if (seconds != rhs.seconds)
+    return false;
+
+  return (milliseconds == rhs.milliseconds);
+}
+
+bool Time::operator<(const Time& rhs) const {
+  if (hours < rhs.hours)
+    return true;
+
+  if (hours > rhs.hours)
+    return false;
+
+  if (minutes < rhs.minutes)
+    return true;
+
+  if (minutes > rhs.minutes)
+    return false;
+
+  if (seconds < rhs.seconds)
+    return true;
+
+  if (seconds > rhs.seconds)
+    return false;
+
+  return (milliseconds < rhs.milliseconds);
+}
+
+bool Time::operator>(const Time& rhs) const {
+  return rhs.operator<(*this);
+}
+
+bool Time::operator<=(const Time& rhs) const {
+  return !this->operator>(rhs);
+}
+
+bool Time::operator>=(const Time& rhs) const {
+  return !this->operator<(rhs);
+}
+
+presentation_t Time::presentation() const {
+  const presentation_t h = 1000LL * 3600LL * presentation_t(hours);
+  const presentation_t m = 1000LL * 60LL * presentation_t(minutes);
+  const presentation_t s = 1000LL * presentation_t(seconds);
+  const presentation_t result = h + m + s + milliseconds;
+  return result;
+}
+
+Time& Time::presentation(presentation_t d) {
+  if (d < 0) {  // error
+    hours = 0;
+    minutes = 0;
+    seconds = 0;
+    milliseconds = 0;
+
+    return *this;
+  }
+
+  seconds = d / 1000;
+  milliseconds = d - 1000 * seconds;
+
+  minutes = seconds / 60;
+  seconds -= 60 * minutes;
+
+  hours = minutes / 60;
+  minutes -= 60 * hours;
+
+  return *this;
+}
+
+Time& Time::operator+=(presentation_t rhs) {
+  const presentation_t d = this->presentation();
+  const presentation_t dd = d + rhs;
+  this->presentation(dd);
+  return *this;
+}
+
+Time Time::operator+(presentation_t d) const {
+  Time t(*this);
+  t += d;
+  return t;
+}
+
+Time& Time::operator-=(presentation_t d) {
+  return this->operator+=(-d);
+}
+
+presentation_t Time::operator-(const Time& t) const {
+  const presentation_t rhs = t.presentation();
+  const presentation_t lhs = this->presentation();
+  const presentation_t result = lhs - rhs;
+  return result;
+}
+
+}  // namespace libwebvtt

webvttparser.h

@@ -0,0 +1,162 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#ifndef WEBVTTPARSER_H_  // NOLINT
+#define WEBVTTPARSER_H_
+
+#include <list>
+#include <string>
+
+namespace libwebvtt {
+
+class Reader {
+ public:
+  // Fetch a character from the stream. Return
+  // negative if error, positive if end-of-stream,
+  // and 0 if a character is available.
+  virtual int GetChar(char* c) = 0;
+
+ protected:
+  virtual ~Reader();
+};
+
+class LineReader : protected Reader {
+ public:
+  // Consume a line of text from the stream, stripping off
+  // the line terminator characters.  Returns negative if error,
+  // 0 on success, and positive at end-of-stream.
+  int GetLine(std::string* line);
+
+ protected:
+  virtual ~LineReader();
+
+  // Puts a character back into the stream.
+  virtual void UngetChar(char c) = 0;
+};
+
+// As measured in thousandths of a second,
+// e.g. a duration of 1 equals 0.001 seconds,
+// and a duration of 1000 equals 1 second.
+typedef long long presentation_t;  // NOLINT
+
+struct Time {
+  int hours;
+  int minutes;
+  int seconds;
+  int milliseconds;
+
+  bool operator==(const Time& rhs) const;
+  bool operator<(const Time& rhs) const;
+  bool operator>(const Time& rhs) const;
+  bool operator<=(const Time& rhs) const;
+  bool operator>=(const Time& rhs) const;
+
+  presentation_t presentation() const;
+  Time& presentation(presentation_t);
+
+  Time& operator+=(presentation_t);
+  Time operator+(presentation_t) const;
+
+  Time& operator-=(presentation_t);
+  presentation_t operator-(const Time&) const;
+};
+
+struct Setting {
+  std::string name;
+  std::string value;
+};
+
+struct Cue {
+  std::string identifier;
+
+  Time start_time;
+  Time stop_time;
+
+  typedef std::list<Setting> settings_t;
+  settings_t settings;
+
+  typedef std::list<std::string> payload_t;
+  payload_t payload;
+};
+
+class Parser : private LineReader {
+ public:
+  explicit Parser(Reader* r);
+  virtual ~Parser();
+
+  // Pre-parse enough of the stream to determine whether
+  // this is really a WEBVTT file. Returns 0 on success,
+  // negative if error.
+  int Init();
+
+  // Parse the next WebVTT cue from the stream. Returns 0 if
+  // an entire cue was parsed, negative if error, and positive
+  // at end-of-stream.
+  int Parse(Cue* cue);
+
+ private:
+  // Returns the next character in the stream, using the look-back character
+  // if present (as per Reader::GetChar).
+  virtual int GetChar(char* c);
+
+  // Puts a character back into the stream (as per LineReader::UngetChar).
+  virtual void UngetChar(char c);
+
+  // Check for presence of a UTF-8 BOM in the stream.  Returns
+  // negative if error, 0 on success, and positive at end-of-stream.
+  int ParseBOM();
+
+  // Parse the distinguished "cue timings" line, which includes the start
+  // and stop times and settings.  Argument |line| contains the complete
+  // line of text (as returned by ParseLine()), which the function is free
+  // to modify as it sees fit, to facilitate scanning.  Argument |arrow_pos|
+  // is the offset of the arrow token ("-->"), which indicates that this is
+  // the timings line.  Returns negative if error, 0 on success.
+  //
+  static int ParseTimingsLine(std::string* line,
+                              std::string::size_type arrow_pos,
+                              Time* start_time,
+                              Time* stop_time,
+                              Cue::settings_t* settings);
+
+  // Parse a single time specifier (from the timings line), starting
+  // at the given offset; lexical scanning stops when a NUL character
+  // is detected. The function modifies offset |off| by the number of
+  // characters consumed.  Returns negative if error, 0 on success.
+  //
+  static int ParseTime(const std::string& line,
+                       std::string::size_type* off,
+                       Time* time);
+
+  // Parse the cue settings from the timings line, starting at the
+  // given offset.  Returns negative if error, 0 on success.
+  //
+  static int ParseSettings(const std::string& line,
+                           std::string::size_type off,
+                           Cue::settings_t* settings);
+
+  // Parse a non-negative integer from the characters in |line| beginning
+  // at offset |off|.  The function increments |off| by the number
+  // of characters consumed.  Returns the value, or negative if error.
+  //
+  static int ParseNumber(const std::string& line,
+                         std::string::size_type* off);
+
+  Reader* const reader_;
+
+  // Provides one character's worth of look-back, to facilitate scanning.
+  int unget_;
+
+  // Disable copy ctor and copy assign for Parser.
+  Parser(const Parser&);
+  Parser& operator=(const Parser&);
+};
+
+}  // namespace libwebvtt
+
+#endif  // WEBVTTPARSER_H_  // NOLINT