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

@@ -1,20 +1,53 @@
-LIB = libmkvparser.a
-OBJECTS = mkvparser.o mkvreader.o sample.o
-EXE = sample 
-CFLAGS = -W -Wall -g 
+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
 
-$(EXE): $(OBJECTS) 
-	$(AR) rcs $(LIB) mkvparser.o 
-	$(CXX) $(OBJECTS)  -L./ -lmkvparser -o $(EXE)
+all: $(EXES)
 
-mkvparser.o: mkvparser.cpp
-	$(CXX) -c $(CFLAGS) mkvparser.cpp -o mkvparser.o
+sample: sample.o $(LIBWEBMA)
+	$(CXX) $^ -o $@
 
-mkvreader.o: mkvreader.cpp
-	$(CXX) -c $(CFLAGS) mkvreader.cpp -o mkvreader.o
+samplemuxer: $(OBJECTS2) $(LIBWEBMA)
+	$(CXX) $^ -o $@
 
-sample.o: sample.cpp
-	$(CXX) -c $(CFLAGS) sample.cpp  -o sample.o
+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 -rf $(OBJECTS) $(LIB) $(EXE) Makefile.bak
+	$(RM) -f $(OBJECTS1) $(OBJECTS2) $(OBJECTS3) $(OBJECTS4) $(OBJSA) $(OBJSSO) $(LIBWEBMA) $(LIBWEBMSO) $(EXES) $(DEPS) Makefile.bak
+
+ifneq ($(MAKECMDGOALS), clean)
+  -include $(DEPS)
+endif

RELEASE.TXT

@@ -1,3 +1,29 @@
+1.0.0.5
+ * Handled case when no duration
+ * Handled empty clusters
+ * Handled empty clusters when seeking
+ * Implemented check lacing bits
+
+1.0.0.4
+ * Made Cues member variables mutables
+ * Defined against badly-formatted cue points
+ * Segment::GetCluster returns CuePoint too
+ * Separated cue-based searches
+
+1.0.0.3
+ * Added Block::GetOffset() to get a frame's offset in a block
+ * Changed cluster count type from size_t to long
+ * Parsed SeekHead to find cues
+ * Allowed seeking beyond end of cluster cache
+ * Added not to attempt to reparse cues element
+ * Restructured Segment::LoadCluster
+ * Marked position of cues without parsing cues element
+ * Allowed cue points to be loaded incrementally
+ * Implemented to load lazily cue points as they're searched
+ * Merged Cues::LoadCuePoint into Cues::Find
+ * Lazy init cues
+ * Loaded cue point during find
+
 1.0.0.2
  * added support for Cues element
  * seeking was improved
@@ -5,4 +31,4 @@
 1.0.0.1
  * fixed item 141
  * added item 142
- * added this file, RELEASE.TXT, to repository
+ * added this file, RELEASE.TXT, to repository

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_2008.sln

@@ -0,0 +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_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

@@ -1,178 +1,210 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9.00"
-	Name="mkvparser"
-	ProjectGUID="{F9128EC6-C008-41AD-B38F-0E70D549D9F4}"
-	RootNamespace="mkvparser"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="131072"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			UseOfMFC="0"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="3"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			UseOfMFC="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;_LIB"
-				RuntimeLibrary="2"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="3"
-			/>
-			<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=".\mkvparser.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvreader.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\mkvparser.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvreader.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
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+EndProject
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+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

libwebm_2010.vcxproj

@@ -0,0 +1,150 @@
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+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <ProjectName>libwebm</ProjectName>
+    <ProjectGuid>{7B1F12CA-0724-430B-B61A-1D357C912CBA}</ProjectGuid>
+    <RootNamespace>libwebm</RootNamespace>
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+    <ClCompile Include="mkvwriter.cpp" />
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+    <ClInclude Include="mkvparser.hpp" />
+    <ClInclude Include="mkvreader.hpp" />
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+    <ClInclude Include="webmids.hpp" />
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libwebm_2010.vcxproj.filters

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
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+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
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+      <Filter>Source Files</Filter>
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+      <Filter>Header Files</Filter>
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+    <ClInclude Include="mkvmuxertypes.hpp">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="mkvmuxerutil.hpp">
+      <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>

mkvmuxertypes.hpp

@@ -0,0 +1,30 @@
+// 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 MKVMUXERTYPES_HPP
+#define MKVMUXERTYPES_HPP
+
+// Copied from Chromium basictypes.h
+// A macro to disallow the copy constructor and operator= functions
+// This should be used in the private: declarations for a class
+#define LIBWEBM_DISALLOW_COPY_AND_ASSIGN(TypeName) \
+  TypeName(const TypeName&);               \
+  void operator=(const TypeName&)
+
+namespace mkvmuxer {
+
+typedef unsigned char      uint8;
+typedef short              int16;
+typedef int                int32;
+typedef unsigned int       uint32;
+typedef long long          int64;
+typedef unsigned long long uint64;
+
+}  //end namespace mkvmuxer
+
+#endif // MKVMUXERTYPES_HPP

mkvmuxerutil.cpp

@@ -0,0 +1,630 @@
+// 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 "mkvmuxerutil.hpp"
+
+#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>
+
+#include "mkvwriter.hpp"
+#include "webmids.hpp"
+
+namespace mkvmuxer {
+
+int32 GetCodedUIntSize(uint64 value) {
+  if (value < 0x000000000000007FULL)
+    return 1;
+  else if (value < 0x0000000000003FFFULL)
+    return 2;
+  else if (value < 0x00000000001FFFFFULL)
+    return 3;
+  else if (value < 0x000000000FFFFFFFULL)
+    return 4;
+  else if (value < 0x00000007FFFFFFFFULL)
+    return 5;
+  else if (value < 0x000003FFFFFFFFFFULL)
+    return 6;
+  else if (value < 0x0001FFFFFFFFFFFFULL)
+    return 7;
+  return 8;
+}
+
+int32 GetUIntSize(uint64 value) {
+  if (value < 0x0000000000000100ULL)
+    return 1;
+  else if (value < 0x0000000000010000ULL)
+    return 2;
+  else if (value < 0x0000000001000000ULL)
+    return 3;
+  else if (value < 0x0000000100000000ULL)
+    return 4;
+  else if (value < 0x0000010000000000ULL)
+    return 5;
+  else if (value < 0x0001000000000000ULL)
+    return 6;
+  else if (value < 0x0100000000000000ULL)
+    return 7;
+  return 8;
+}
+
+uint64 EbmlMasterElementSize(uint64 type, uint64 value) {
+  // Size of EBML ID
+  int32 ebml_size = GetUIntSize(type);
+
+  // Datasize
+  ebml_size += GetCodedUIntSize(value);
+
+  return ebml_size;
+}
+
+uint64 EbmlElementSize(uint64 type, uint64 value) {
+  // Size of EBML ID
+  int32 ebml_size = GetUIntSize(type);
+
+  // Datasize
+  ebml_size += GetUIntSize(value);
+
+  // Size of Datasize
+  ebml_size++;
+
+  return ebml_size;
+}
+
+uint64 EbmlElementSize(uint64 type, float /* value */ ) {
+  // Size of EBML ID
+  uint64 ebml_size = GetUIntSize(type);
+
+  // Datasize
+  ebml_size += sizeof(float);
+
+  // Size of Datasize
+  ebml_size++;
+
+  return ebml_size;
+}
+
+uint64 EbmlElementSize(uint64 type, const char* value) {
+  if (!value)
+    return 0;
+
+  // Size of EBML ID
+  uint64 ebml_size = GetUIntSize(type);
+
+  // Datasize
+  ebml_size += strlen(value);
+
+  // Size of Datasize
+  ebml_size++;
+
+  return ebml_size;
+}
+
+uint64 EbmlElementSize(uint64 type, const uint8* value, uint64 size) {
+  if (!value)
+    return 0;
+
+  // Size of EBML ID
+  uint64 ebml_size = GetUIntSize(type);
+
+  // Datasize
+  ebml_size += size;
+
+  // Size of Datasize
+  ebml_size += GetCodedUIntSize(size);
+
+  return ebml_size;
+}
+
+int32 SerializeInt(IMkvWriter* writer, int64 value, int32 size) {
+  if (!writer || size < 1 || size > 8)
+    return -1;
+
+  for (int32 i = 1; i <= size; ++i) {
+    const int32 byte_count = size - i;
+    const int32 bit_count = byte_count * 8;
+
+    const int64 bb = value >> bit_count;
+    const uint8 b = static_cast<uint8>(bb);
+
+    const int32 status = writer->Write(&b, 1);
+
+    if (status < 0)
+      return status;
+  }
+
+  return 0;
+}
+
+int32 SerializeFloat(IMkvWriter* writer, float f) {
+  if (!writer)
+    return -1;
+
+  const uint32& val = reinterpret_cast<const uint32&>(f);
+
+  for (int32 i = 1; i <= 4; ++i) {
+    const int32 byte_count = 4 - i;
+    const int32 bit_count = byte_count * 8;
+
+    const uint32 bb = val >> bit_count;
+    const uint8 b = static_cast<uint8>(bb);
+
+    const int32 status = writer->Write(&b, 1);
+
+    if (status < 0)
+      return status;
+  }
+
+  return 0;
+}
+
+int32 WriteUInt(IMkvWriter* writer, uint64 value) {
+  if (!writer)
+    return -1;
+
+  int32 size = GetCodedUIntSize(value);
+
+  return WriteUIntSize(writer, value, size);
+}
+
+int32 WriteUIntSize(IMkvWriter* writer, uint64 value, int32 size) {
+  if (!writer || size < 0 || size > 8)
+    return -1;
+
+  if (size > 0) {
+    const uint64 bit = 1LL << (size * 7);
+
+    if (value > (bit - 2))
+      return -1;
+
+    value |= bit;
+  } else {
+    size = 1;
+    int64 bit;
+
+    for (;;) {
+      bit = 1LL << (size * 7);
+      const uint64 max = bit - 2;
+
+      if (value <= max)
+        break;
+
+      ++size;
+    }
+
+    if (size > 8)
+      return false;
+
+    value |= bit;
+  }
+
+  return SerializeInt(writer, value, size);
+}
+
+int32 WriteID(IMkvWriter* writer, uint64 type) {
+  if (!writer)
+    return -1;
+
+  writer->ElementStartNotify(type, writer->Position());
+
+  const int32 size = GetUIntSize(type);
+
+  return SerializeInt(writer, type, size);
+}
+
+bool WriteEbmlMasterElement(IMkvWriter* writer, uint64 type, uint64 size) {
+  if (!writer)
+    return false;
+
+  if (WriteID(writer, type))
+    return false;
+
+  if (WriteUInt(writer, size))
+    return false;
+
+  return true;
+}
+
+bool WriteEbmlElement(IMkvWriter* writer, uint64 type, uint64 value) {
+  if (!writer)
+    return false;
+
+  if (WriteID(writer, type))
+    return false;
+
+  const uint64 size = GetUIntSize(value);
+  if (WriteUInt(writer, size))
+    return false;
+
+  if (SerializeInt(writer, value, static_cast<int32>(size)))
+    return false;
+
+  return true;
+}
+
+bool WriteEbmlElement(IMkvWriter* writer, uint64 type, float value) {
+  if (!writer)
+    return false;
+
+  if (WriteID(writer, type))
+    return false;
+
+  if (WriteUInt(writer, 4))
+    return false;
+
+  if (SerializeFloat(writer, value))
+    return false;
+
+  return true;
+}
+
+bool WriteEbmlElement(IMkvWriter* writer, uint64 type, const char* value) {
+  if (!writer || !value)
+    return false;
+
+  if (WriteID(writer, type))
+    return false;
+
+  const int32 length = strlen(value);
+  if (WriteUInt(writer, length))
+    return false;
+
+  if (writer->Write(value, length))
+    return false;
+
+  return true;
+}
+
+bool WriteEbmlElement(IMkvWriter* writer,
+                      uint64 type,
+                      const uint8* value,
+                      uint64 size) {
+  if (!writer || !value || size < 1)
+    return false;
+
+  if (WriteID(writer, type))
+    return false;
+
+  if (WriteUInt(writer, size))
+    return false;
+
+  if (writer->Write(value, static_cast<uint32>(size)))
+    return false;
+
+  return true;
+}
+
+uint64 WriteSimpleBlock(IMkvWriter* writer,
+                        const uint8* data,
+                        uint64 length,
+                        uint64 track_number,
+                        int64 timecode,
+                        uint64 is_key) {
+  if (!writer)
+    return false;
+
+  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))
+    return 0;
+
+  const int32 size = static_cast<int32>(length) + 4;
+  if (WriteUInt(writer, size))
+    return 0;
+
+  if (WriteUInt(writer, static_cast<uint64>(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;
+
+  const uint64 element_size =
+    GetUIntSize(kMkvSimpleBlock) + GetCodedUIntSize(size) + 4 + length;
+
+  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;
+
+  // Subtract one for the void ID and the coded size.
+  uint64 void_entry_size = size - 1 - GetCodedUIntSize(size-1);
+  uint64 void_size = EbmlMasterElementSize(kMkvVoid, void_entry_size) +
+                     void_entry_size;
+
+  if (void_size != size)
+    return 0;
+
+  const int64 payload_position = writer->Position();
+  if (payload_position < 0)
+    return 0;
+
+  if (WriteID(writer, kMkvVoid))
+    return 0;
+
+  if (WriteUInt(writer, void_entry_size))
+    return 0;
+
+  const uint8 value = 0;
+  for (int32 i = 0; i < static_cast<int32>(void_entry_size); ++i) {
+    if (writer->Write(&value, 1))
+      return 0;
+  }
+
+  const int64 stop_position = writer->Position();
+  if (stop_position < 0 ||
+      stop_position - payload_position != static_cast<int64>(void_size))
+    return 0;
+
+  return void_size;
+}
+
+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

@@ -0,0 +1,131 @@
+// 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 MKVMUXERUTIL_HPP
+#define MKVMUXERUTIL_HPP
+
+#include "mkvmuxertypes.hpp"
+
+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);
+uint64 EbmlElementSize(uint64 type, const char* value);
+uint64 EbmlElementSize(uint64 type, const uint8* value, uint64 size);
+
+// Creates an EBML coded number from |value| and writes it out. The size of
+// the coded number is determined by the value of |value|. |value| must not
+// be in a coded form. Returns 0 on success.
+int32 WriteUInt(IMkvWriter* writer, uint64 value);
+
+// Creates an EBML coded number from |value| and writes it out. The size of
+// the coded number is determined by the value of |size|. |value| must not
+// be in a coded form. Returns 0 on success.
+int32 WriteUIntSize(IMkvWriter* writer, uint64 value, int32 size);
+
+// Output an Mkv master element. Returns true if the element was written.
+bool WriteEbmlMasterElement(IMkvWriter* writer, uint64 value, uint64 size);
+
+// Outputs an Mkv ID, calls |IMkvWriter::ElementStartNotify|, and passes the
+// ID to |SerializeInt|. Returns 0 on success.
+int32 WriteID(IMkvWriter* writer, uint64 type);
+
+// Output an Mkv non-master element. Returns true if the element was written.
+bool WriteEbmlElement(IMkvWriter* writer, uint64 type, uint64 value);
+bool WriteEbmlElement(IMkvWriter* writer, uint64 type, float value);
+bool WriteEbmlElement(IMkvWriter* writer, uint64 type, const char* value);
+bool WriteEbmlElement(IMkvWriter* writer,
+                      uint64 type,
+                      const uint8* value,
+                      uint64 size);
+
+// Output an Mkv Simple Block.
+// Inputs:
+//   data:         Pointer to the data.
+//   length:       Length of the 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:     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,
+                        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
+// it from |size|.
+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);
+
+// 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
+
+#endif // MKVMUXERUTIL_HPP

mkvparser_2005.sln

@@ -1,34 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 9.00
-# Visual Studio 2005
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mkvparser_2005", "mkvparser_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_2005", "sample_2005.vcproj", "{0CB5681F-6065-490C-98C8-05531732ED7E}"
-	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

mkvparser_2005.vcproj

@@ -1,176 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="8.00"
-	Name="mkvparser"
-	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="$(ConfigurationName)"
-			ConfigurationType="4"
-			UseOfMFC="0"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="3"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(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="2"
-				UsePrecompiledHeader="2"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="3"
-			/>
-			<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=".\mkvparser.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvreader.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\mkvparser.hpp"
-				>
-			</File>
-			<File
-				RelativePath=".\mkvreader.hpp"
-				>
-			</File>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

mkvparser_2008.sln

@@ -1,29 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual Studio 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mkvparser", "mkvparser_2008.vcproj", "{F9128EC6-C008-41AD-B38F-0E70D549D9F4}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sample", "sample_2008.vcproj", "{0CB5681F-6065-490C-98C8-05531732ED7E}"
-	ProjectSection(ProjectDependencies) = postProject
-		{F9128EC6-C008-41AD-B38F-0E70D549D9F4} = {F9128EC6-C008-41AD-B38F-0E70D549D9F4}
-	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

mkvreader.cpp

@@ -10,6 +10,9 @@
 
 #include <cassert>
 
+namespace mkvparser
+{
+
 MkvReader::MkvReader() :
     m_file(NULL)
 {
@@ -121,3 +124,5 @@ int MkvReader::Read(long long offset, long len, unsigned char* buffer)
 
     return 0;  //success
 }
+
+}  //end namespace mkvparser

mkvreader.hpp

@@ -12,7 +12,10 @@
 #include "mkvparser.hpp"
 #include <cstdio>
 
-class MkvReader : public mkvparser::IMkvReader
+namespace mkvparser
+{
+
+class MkvReader : public IMkvReader
 {
     MkvReader(const MkvReader&);
     MkvReader& operator=(const MkvReader&);
@@ -22,7 +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);
@@ -31,4 +33,6 @@ private:
     FILE* m_file;
 };
 
+}  //end namespace mkvparser
+
 #endif //MKVREADER_HPP

mkvwriter.cpp

@@ -0,0 +1,94 @@
+// 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

@@ -0,0 +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

sample.cpp

@@ -11,6 +11,17 @@
 
 #include "mkvreader.hpp"
 #include "mkvparser.hpp"
+#include <memory>
+
+#ifdef _MSC_VER
+// Silences these warnings:
+// warning C4996: 'mbstowcs': This function or variable may be unsafe. Consider
+// using mbstowcs_s instead. To disable deprecation, use
+// _CRT_SECURE_NO_WARNINGS. See online help for details.
+// Fixing this warning requires use of a function available only on Windows,
+// and this sample code must support non-windows platforms.
+#pragma warning(disable:4996)
+#endif
 
 static const wchar_t* utf8towcs(const char* str)
 {
@@ -73,15 +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)
     {
@@ -109,22 +123,32 @@ int main(int argc, char* argv[])
     printf("\t\tDuration\t\t: %lld\n", duration_ns);
 
     const double duration_sec = double(duration_ns) / 1000000000;
-    printf("\t\tDuration(secs)\t\t: %7.3f\n", duration_sec);
+    printf("\t\tDuration(secs)\t\t: %7.3lf\n", duration_sec);
 
     if (pTitle == NULL)
         printf("\t\tTrack Name\t\t: NULL\n");
     else
+    {
         printf("\t\tTrack Name\t\t: %ls\n", pTitle);
+        delete [] pTitle;
+    }
+
 
     if (pMuxingApp == NULL)
         printf("\t\tMuxing App\t\t: NULL\n");
     else
+    {
         printf("\t\tMuxing App\t\t: %ls\n", pMuxingApp);
+        delete [] pMuxingApp;
+    }
 
     if (pWritingApp == NULL)
         printf("\t\tWriting App\t\t: NULL\n");
     else
+    {
         printf("\t\tWriting App\t\t: %ls\n", pWritingApp);
+        delete [] pWritingApp;
+    }
 
     // pos of segment payload
     printf("\t\tPosition(Segment)\t: %lld\n", pSegment->m_start);
@@ -132,13 +156,11 @@ int main(int argc, char* argv[])
     // size of segment payload
     printf("\t\tSize(Segment)\t\t: %lld\n", pSegment->m_size);
 
-    mkvparser::Tracks* const pTracks = pSegment->GetTracks();
+    const mkvparser::Tracks* pTracks = pSegment->GetTracks();
 
     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)
@@ -148,19 +170,22 @@ int main(int argc, char* argv[])
         if (pTrack == NULL)
             continue;
 
-        const long long trackType_ = pTrack->GetType();
-        unsigned long trackType = static_cast<unsigned long>(trackType_);
-
-        unsigned 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: %ld\n", trackType);
         printf("\t\tTrack Number\t\t: %ld\n", trackNumber);
+        printf("\t\tTrack Uid\t\t: %lld\n", trackUid);
 
         if (pTrackName == NULL)
             printf("\t\tTrack Name\t\t: NULL\n");
         else
+        {
             printf("\t\tTrack Name\t\t: %ls \n", pTrackName);
+            delete [] pTrackName;
+        }
 
         const char* const pCodecId = pTrack->GetCodecId();
 
@@ -175,9 +200,12 @@ int main(int argc, char* argv[])
         if (pCodecName == NULL)
             printf("\t\tCodec Name\t\t: NULL\n");
         else
+        {
             printf("\t\tCodec Name\t\t: %ls\n", pCodecName);
+            delete [] pCodecName;
+        }
 
-        if (trackType == VIDEO_TRACK)
+        if (trackType == mkvparser::Track::kVideo)
         {
             const VideoTrack* const pVideoTrack =
                 static_cast<const VideoTrack*>(pTrack);
@@ -192,7 +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);
@@ -216,11 +244,10 @@ int main(int argc, char* argv[])
     if (clusterCount == 0)
     {
         printf("\t\tSegment has no clusters.\n");
-        delete pSegment;
         return -1;
     }
 
-    mkvparser::Cluster* pCluster = pSegment->GetFirst();
+    const mkvparser::Cluster* pCluster = pSegment->GetFirst();
 
     while ((pCluster != NULL) && !pCluster->EOS())
     {
@@ -230,30 +257,59 @@ 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())
         {
             const Block* const pBlock  = pBlockEntry->GetBlock();
-            const unsigned long trackNum = pBlock->GetTrackNumber();
-            const Track* const pTrack = pTracks->GetTrackByNumber(trackNum);
-            const long long trackType = pTrack->GetType();
-            const long size = pBlock->GetSize();
-            const long long time_ns = pBlock->GetTime(pCluster);
+            const long long trackNum = pBlock->GetTrackNumber();
+            const unsigned long tn = static_cast<unsigned long>(trackNum);
+            const Track* const pTrack = pTracks->GetTrackByNumber(tn);
 
-            printf("\t\t\tBlock\t\t:%s,%15ld,%s,%15lld\n",
-                   (trackType == VIDEO_TRACK) ? "V" : "A",
-                   size,
-                   pBlock->IsKey() ? "I" : "P",
-                   time_ns);
+            if (pTrack == NULL)
+                printf("\t\t\tBlock\t\t:UNKNOWN TRACK TYPE\n");
+            else
+            {
+                const long long trackType = pTrack->GetType();
+                const int frameCount = pBlock->GetFrameCount();
+                const long long time_ns = pBlock->GetTime(pCluster);
 
-            pBlockEntry = pCluster->GetNext(pBlockEntry);
+                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);
+                }
+            }
+
+            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_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="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				AdditionalIncludeDirectories="..\"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="3"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Debug\mkvparser.lib"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				RandomizedBaseAddress="1"
-				DataExecutionPrevention="0"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(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="2"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Release\mkvparser.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 @@
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+    <ProjectName>sample</ProjectName>
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+    <RootNamespace>sample</RootNamespace>
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+    <ConfigurationType>Application</ConfigurationType>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <OutDir Condition="'$(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'">$(ProjectDir)..\exe\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</OutDir>
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+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release DLL|Win32'">$(ProjectDir)..\obj\libwebm_2010\$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
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+      <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>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
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+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(ProjectDir)..\lib\libwebm_2010\libwebm\$(Platform)\$(Configuration)\libwebm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
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+    </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)|$(Platform)'=='Release DLL|Win32'">
+    <ClCompile>
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+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(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

@@ -0,0 +1,540 @@
+// 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 <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <list>
+#include <string>
+
+// libwebm parser includes
+#include "mkvreader.hpp"
+#include "mkvparser.hpp"
+
+// libwebm muxer includes
+#include "mkvmuxer.hpp"
+#include "mkvwriter.hpp"
+#include "mkvmuxerutil.hpp"
+
+#include "sample_muxer_metadata.h"
+
+using mkvmuxer::uint64;
+
+namespace {
+
+void Usage() {
+  printf("Usage: sample_muxer -i input -o output [options]\n");
+  printf("\n");
+  printf("Main options:\n");
+  printf("  -h | -?                     show help\n");
+  printf("  -video <int>                >0 outputs video\n");
+  printf("  -audio <int>                >0 outputs audio\n");
+  printf("  -live <int>                 >0 puts the muxer into live mode\n");
+  printf("                              0 puts the muxer into file mode\n");
+  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("  -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");
+  printf("  -audio_track_number <int>   >0 Changes the audio track number\n");
+  printf("  -video_track_number <int>   >0 Changes the video track number\n");
+  printf("  -chunking <string>          Chunk output\n");
+  printf("\n");
+  printf("Video options:\n");
+  printf("  -display_width <int>        Display width in pixels\n");
+  printf("  -display_height <int>       Display height in pixels\n");
+  printf("  -stereo_mode <int>          3D video mode\n");
+  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");
+}
+
+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[]) {
+  char* input = NULL;
+  char* output = NULL;
+
+  // Segment variables
+  bool output_video = true;
+  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 = 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.
+  bool chunking = false;
+  const char* chunk_name = NULL;
+
+  bool output_cues_block_number = true;
+
+  uint64 display_width = 0;
+  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]) && i < argc_check) {
+      input = argv[++i];
+    } else if (!strcmp("-o", argv[i]) && i < argc_check) {
+      output = 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]) && i < argc_check) {
+      output_audio = strtol(argv[++i], &end, 10) == 0 ? false : true;
+    } 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]) && i < argc_check) {
+      output_cues = strtol(argv[++i], &end, 10) == 0 ? false : true;
+    } 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;
+      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;
+      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]) && i < argc_check) {
+      max_cluster_size = strtol(argv[++i], &end, 10);
+    } 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]) && i < argc_check) {
+      audio_track_number = strtol(argv[++i], &end, 10);
+    } 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]) && i < argc_check) {
+      chunking = true;
+      chunk_name = 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]) && i < argc_check) {
+      display_height = strtol(argv[++i], &end, 10);
+    } 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]) &&
+               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;
+    }
+  }
+
+  if (input == NULL || output == NULL) {
+    Usage();
+    return EXIT_FAILURE;
+  }
+
+  // Get parser header info
+  mkvparser::MkvReader reader;
+
+  if (reader.Open(input)) {
+    printf("\n Filename is invalid or error while opening.\n");
+    return EXIT_FAILURE;
+  }
+
+  long long pos = 0;
+  mkvparser::EBMLHeader ebml_header;
+  ebml_header.Parse(&reader, pos);
+
+  mkvparser::Segment* parser_segment;
+  long long ret = mkvparser::Segment::CreateInstance(&reader,
+                                                     pos,
+                                                     parser_segment);
+  if (ret) {
+    printf("\n Segment::CreateInstance() failed.");
+    return EXIT_FAILURE;
+  }
+
+  ret = parser_segment->Load();
+  if (ret < 0) {
+    printf("\n Segment::Load() failed.");
+    return EXIT_FAILURE;
+  }
+
+  const mkvparser::SegmentInfo* const segment_info = parser_segment->GetInfo();
+  const long long timeCodeScale = segment_info->GetTimeCodeScale();
+
+  // Set muxer header info
+  mkvmuxer::MkvWriter writer;
+
+  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;
+  }
+
+  // Set Segment element attributes
+  mkvmuxer::Segment muxer_segment;
+
+  if (!muxer_segment.Init(&writer)) {
+    printf("\n Could not initialize muxer segment!\n");
+    return EXIT_FAILURE;
+  }
+
+  if (live_mode)
+    muxer_segment.set_mode(mkvmuxer::Segment::kLive);
+  else
+    muxer_segment.set_mode(mkvmuxer::Segment::kFile);
+
+  if (chunking)
+    muxer_segment.SetChunking(true, chunk_name);
+
+  if (max_cluster_duration > 0)
+    muxer_segment.set_max_cluster_duration(max_cluster_duration);
+  if (max_cluster_size > 0)
+    muxer_segment.set_max_cluster_size(max_cluster_size);
+  muxer_segment.OutputCues(output_cues);
+
+  // Set SegmentInfo element attributes
+  mkvmuxer::SegmentInfo* const info = muxer_segment.GetSegmentInfo();
+  info->set_timecode_scale(timeCodeScale);
+  info->set_writing_app("sample_muxer");
+
+  // Set Tracks element attributes
+  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
+
+  using mkvparser::Track;
+
+  while (i != parser_tracks->GetTracksCount()) {
+    int track_num = i++;
+    if (switch_tracks)
+      track_num = i % parser_tracks->GetTracksCount();
+
+    const mkvparser::Track* const parser_track =
+        parser_tracks->GetTrackByIndex(track_num);
+
+    if (parser_track == NULL)
+      continue;
+
+    // TODO(fgalligan): Add support for language to parser.
+    const char* const track_name = parser_track->GetNameAsUTF8();
+
+    const long long track_type = parser_track->GetType();
+
+    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);
+      const long long width =  pVideoTrack->GetWidth();
+      const long long height = pVideoTrack->GetHeight();
+
+      // Add the video track to the muxer
+      vid_track = muxer_segment.AddVideoTrack(static_cast<int>(width),
+                                              static_cast<int>(height),
+                                              video_track_number);
+      if (!vid_track) {
+        printf("\n Could not add video track.\n");
+        return EXIT_FAILURE;
+      }
+
+      mkvmuxer::VideoTrack* const video =
+          static_cast<mkvmuxer::VideoTrack*>(
+              muxer_segment.GetTrackByNumber(vid_track));
+      if (!video) {
+        printf("\n Could not get video track.\n");
+        return EXIT_FAILURE;
+      }
+
+      if (track_name)
+        video->set_name(track_name);
+
+      if (display_width > 0)
+        video->set_display_width(display_width);
+      if (display_height > 0)
+        video->set_display_height(display_height);
+      if (stereo_mode > 0)
+        video->SetStereoMode(stereo_mode);
+
+      const double rate = pVideoTrack->GetFrameRate();
+      if (rate > 0.0) {
+        video->set_frame_rate(rate);
+      }
+    } 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);
+      const long long channels =  pAudioTrack->GetChannels();
+      const double sample_rate = pAudioTrack->GetSamplingRate();
+
+      // Add the audio track to the muxer
+      aud_track = muxer_segment.AddAudioTrack(static_cast<int>(sample_rate),
+                                              static_cast<int>(channels),
+                                              audio_track_number);
+      if (!aud_track) {
+        printf("\n Could not add audio track.\n");
+        return EXIT_FAILURE;
+      }
+
+      mkvmuxer::AudioTrack* const audio =
+          static_cast<mkvmuxer::AudioTrack*>(
+              muxer_segment.GetTrackByNumber(aud_track));
+      if (!audio) {
+        printf("\n Could not get audio track.\n");
+        return EXIT_FAILURE;
+      }
+
+      if (track_name)
+        audio->set_name(track_name);
+
+      size_t private_size;
+      const unsigned char* const private_data =
+          pAudioTrack->GetCodecPrivate(private_size);
+      if (private_size > 0) {
+        if (!audio->SetCodecPrivate(private_data, private_size)) {
+          printf("\n Could not add audio private data.\n");
+          return EXIT_FAILURE;
+        }
+      }
+
+      const long long bit_depth = pAudioTrack->GetBitDepth();
+      if (bit_depth > 0)
+        audio->set_bit_depth(bit_depth);
+    }
+  }
+
+  // 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);
+  if (cues_on_video_track && vid_track)
+    muxer_segment.CuesTrack(vid_track);
+  if (cues_on_audio_track && aud_track)
+    muxer_segment.CuesTrack(aud_track);
+
+  // Write clusters
+  unsigned char* data = NULL;
+  int data_len = 0;
+
+  const mkvparser::Cluster* cluster = parser_segment->GetFirst();
+
+  while ((cluster != NULL) && !cluster->EOS()) {
+    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();
+      const long long trackNum = block->GetTrackNumber();
+      const mkvparser::Track* const parser_track =
+          parser_tracks->GetTrackByNumber(
+              static_cast<unsigned long>(trackNum));
+      const long long track_type = parser_track->GetType();
+      const long long time_ns = block->GetTime(cluster);
+
+      // 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 bool is_key = block->IsKey();
+
+        for (int i = 0; i < frame_count; ++i) {
+          const mkvparser::Block::Frame& frame = block->GetFrame(i);
+
+          if (frame.len > data_len) {
+            delete [] data;
+            data = new unsigned char[frame.len];
+            if (!data)
+              return EXIT_FAILURE;
+            data_len = frame.len;
+          }
+
+          if (frame.Read(&reader, data))
+            return EXIT_FAILURE;
+
+          uint64 track_num = vid_track;
+          if (track_type == Track::kAudio)
+            track_num = aud_track;
+
+          if (!muxer_segment.AddFrame(data,
+                                      frame.len,
+                                      track_num,
+                                      time_ns,
+                                      is_key)) {
+            printf("\n Could not add frame.\n");
+            return EXIT_FAILURE;
+          }
+        }
+      }
+
+      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);
+  }
+
+  // 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;
+
+  return EXIT_SUCCESS;
+}

sample_muxer_2008.vcproj

@@ -1,193 +1,179 @@
-<?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="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				AdditionalIncludeDirectories="..\"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="3"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies=".\Debug\mkvparser.lib"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCWebDeploymentTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(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="2"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				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>
+<?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

@@ -0,0 +1,138 @@
+// 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 WEBMIDS_HPP
+#define WEBMIDS_HPP
+
+namespace mkvmuxer {
+
+enum MkvId {
+  kMkvEBML                    = 0x1A45DFA3,
+  kMkvEBMLVersion             = 0x4286,
+  kMkvEBMLReadVersion         = 0x42F7,
+  kMkvEBMLMaxIDLength         = 0x42F2,
+  kMkvEBMLMaxSizeLength       = 0x42F3,
+  kMkvDocType                 = 0x4282,
+  kMkvDocTypeVersion          = 0x4287,
+  kMkvDocTypeReadVersion      = 0x4285,
+  kMkvVoid                    = 0xEC,
+  kMkvSignatureSlot           = 0x1B538667,
+  kMkvSignatureAlgo           = 0x7E8A,
+  kMkvSignatureHash           = 0x7E9A,
+  kMkvSignaturePublicKey      = 0x7EA5,
+  kMkvSignature               = 0x7EB5,
+  kMkvSignatureElements       = 0x7E5B,
+  kMkvSignatureElementList    = 0x7E7B,
+  kMkvSignedElement           = 0x6532,
+  //segment
+  kMkvSegment                 = 0x18538067,
+  //Meta Seek Information
+  kMkvSeekHead                = 0x114D9B74,
+  kMkvSeek                    = 0x4DBB,
+  kMkvSeekID                  = 0x53AB,
+  kMkvSeekPosition            = 0x53AC,
+  //Segment Information
+  kMkvInfo                    = 0x1549A966,
+  kMkvTimecodeScale           = 0x2AD7B1,
+  kMkvDuration                = 0x4489,
+  kMkvDateUTC                 = 0x4461,
+  kMkvMuxingApp               = 0x4D80,
+  kMkvWritingApp              = 0x5741,
+  //Cluster
+  kMkvCluster                 = 0x1F43B675,
+  kMkvTimecode                = 0xE7,
+  kMkvPrevSize                = 0xAB,
+  kMkvBlockGroup              = 0xA0,
+  kMkvBlock                   = 0xA1,
+  kMkvBlockDuration           = 0x9B,
+  kMkvReferenceBlock          = 0xFB,
+  kMkvLaceNumber              = 0xCC,
+  kMkvSimpleBlock             = 0xA3,
+  kMkvBlockAdditions          = 0x75A1,
+  kMkvBlockMore               = 0xA6,
+  kMkvBlockAddID              = 0xEE,
+  kMkvBlockAdditional         = 0xA5,
+  //Track
+  kMkvTracks                  = 0x1654AE6B,
+  kMkvTrackEntry              = 0xAE,
+  kMkvTrackNumber             = 0xD7,
+  kMkvTrackUID                = 0x73C5,
+  kMkvTrackType               = 0x83,
+  kMkvFlagEnabled             = 0xB9,
+  kMkvFlagDefault             = 0x88,
+  kMkvFlagForced              = 0x55AA,
+  kMkvFlagLacing              = 0x9C,
+  kMkvDefaultDuration         = 0x23E383,
+  kMkvName                    = 0x536E,
+  kMkvLanguage                = 0x22B59C,
+  kMkvCodecID                 = 0x86,
+  kMkvCodecPrivate            = 0x63A2,
+  kMkvCodecName               = 0x258688,
+  kMkvMaxBlockAdditionID      = 0x55EE,
+  //video
+  kMkvVideo                   = 0xE0,
+  kMkvFlagInterlaced          = 0x9A,
+  kMkvStereoMode              = 0x53B8,
+  kMkvAlphaMode               = 0x53C0,
+  kMkvPixelWidth              = 0xB0,
+  kMkvPixelHeight             = 0xBA,
+  kMkvPixelCropBottom         = 0x54AA,
+  kMkvPixelCropTop            = 0x54BB,
+  kMkvPixelCropLeft           = 0x54CC,
+  kMkvPixelCropRight          = 0x54DD,
+  kMkvDisplayWidth            = 0x54B0,
+  kMkvDisplayHeight           = 0x54BA,
+  kMkvDisplayUnit             = 0x54B2,
+  kMkvAspectRatioType         = 0x54B3,
+  kMkvFrameRate               = 0x2383E3,
+  //end video
+  //audio
+  kMkvAudio                   = 0xE1,
+  kMkvSamplingFrequency       = 0xB5,
+  kMkvOutputSamplingFrequency = 0x78B5,
+  kMkvChannels = 0x9F,
+  kMkvBitDepth                = 0x6264,
+  //end audio
+  //ContentEncodings
+  kMkvContentEncodings        = 0x6D80,
+  kMkvContentEncoding         = 0x6240,
+  kMkvContentEncodingOrder    = 0x5031,
+  kMkvContentEncodingScope    = 0x5032,
+  kMkvContentEncodingType     = 0x5033,
+  kMkvContentEncryption       = 0x5035,
+  kMkvContentEncAlgo          = 0x47E1,
+  kMkvContentEncKeyID         = 0x47E2,
+  kMkvContentEncAESSettings   = 0x47E7,
+  kMkvAESSettingsCipherMode   = 0x47E8,
+  kMkvAESSettingsCipherInitData = 0x47E9,
+  //end ContentEncodings
+  //Cueing Data
+  kMkvCues                    = 0x1C53BB6B,
+  kMkvCuePoint                = 0xBB,
+  kMkvCueTime                 = 0xB3,
+  kMkvCueTrackPositions       = 0xB7,
+  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

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