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Import nestegg webm/mkv parser

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Initial import of nestegg[1] parser lib, at commit 0d51131.

[1]: http://github.com/kinetiknz/nestegg
     commit 0d51131519a1014660b5e111e28a78785d76600f

Change-Id: I191d388b7e5140ef96624511ccdd65d0e183076d
This commit is contained in:
John Koleszar 2010-10-19 14:40:07 -04:00
parent bdf469c91e
commit 28d191ada4
24 changed files with 5802 additions and 0 deletions
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40
nestegg/.gitignore vendored Normal file
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*.lo
*.o
*.swp
*~
.deps
.dirstamp
.libs
Makefile
Makefile.in
_stdint.h
aclocal.m4
autom4te.cache
compile
config.guess
config.h
config.h.in
config.log
config.status
config.sub
configure
depcomp
docs/Doxyfile
docs/doxygen-build.stamp
docs/html
install-sh
libtool
ltmain.sh
m4/libtool.m4
m4/ltoptions.m4
m4/ltsugar.m4
m4/ltversion.m4
m4/lt~obsolete.m4
missing
nestegg-uninstalled.pc
nestegg.pc
src/.dirstamp
src/libnestegg.la
stamp-h1
test/test
include/nestegg/nestegg-stdint.h

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nestegg/AUTHORS Normal file
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Matthew Gregan <kinetik@flim.org>

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nestegg/INSTALL Normal file
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Build instructions for libnestegg
=================================
0. Change directory into the source directory.
1. Run |autoreconf --install| to generate configure.
2. Run |./configure| to configure the build.
3. Run |make| to build.
4. Run |make check| to run the test suite.

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nestegg/LICENSE Normal file
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Copyright © 2010 Mozilla Foundation
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

51
nestegg/Makefile.am Normal file
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AUTOMAKE_OPTIONS = foreign 1.11 no-dist-gzip dist-bzip2 subdir-objects
ACLOCAL_AMFLAGS = -I m4
INCLUDES = -I$(top_srcdir)/include -I. -I$(top_srcdir)/halloc
AM_CFLAGS = -ansi -pedantic -Wall -Wextra -Wno-long-long -O0 -g
SUBDIRS = docs
EXTRA_DIST = \
AUTHORS README LICENSE \
nestegg-uninstalled.pc.in \
m4/as-ac-expand.m4 \
m4/pkg.m4 \
m4/ax_create_stdint_h.m4 \
halloc/src/halloc.c \
halloc/halloc.h \
halloc/src/align.h \
halloc/src/hlist.h \
halloc/src/macros.h
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = nestegg.pc
nesteggincludedir = $(includedir)/nestegg
nestegginclude_HEADERS = include/nestegg/nestegg.h include/nestegg/nestegg-stdint.h
lib_LTLIBRARIES = src/libnestegg.la
src_libnestegg_la_SOURCES = \
src/nestegg.c \
halloc/src/halloc.c \
halloc/halloc.h \
halloc/src/align.h \
halloc/src/hlist.h \
halloc/src/macros.h
check_PROGRAMS = test/test
test_test_SOURCES = test/test.c
test_test_LDADD = src/libnestegg.la
DISTCLEANFILES = include/nestegg/nestegg-stdint.h
dist-hook:
find $(distdir) -type d -name '.git' | xargs rm -rf
debug:
$(MAKE) all CFLAGS="@DEBUG@"
profile:
$(MAKE) all CFLAGS="@PROFILE@"

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nestegg/README Normal file
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See INSTALL for build instructions.
Licensed under an ISC-style license. See LICENSE for details.
The source under the halloc/ directory is licensed under a BSD license. See
halloc/halloc.h for details.

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- Document when read, seek, tell callbacks are used.
- Add an automated testsuite.
- Test (and fix, if necessary) support for unknown sizes.
- Test (and fix, if necessary) support for large files.
- Read past unknown elements rather than seeking.
- Try to handle unknown elements with unknown sizes.
- Formalize handling of default element values.
- Try to resynchronize stream when read_block fails so that failure to parse
a single block can be treated as non-fatal.
- Make logging more useful to API users.
- Avoid reparsing Cues and ignore any SeekHead at end of file.
- Optionally build a Cue index as Clusters are parsed.
- Support seeking without Cues.
- Avoid building a list of Clusters as they are parsed and retain only the
last one parsed.
- Add an asynchronous error code to struct nestegg and ensure that API calls
continue to fail safely one a fatal error has been returned.
- Modify parser/data structures to provide a clean separation. Perhaps the
parser should return a generic tree of nodes that a second pass uses to
initialize the main data structures.
- Use pool allocator for all allocations.

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dnl ------------------------------------------------
dnl Initialization and Versioning
dnl ------------------------------------------------
AC_INIT(libnestegg,[0.1git])
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_CONFIG_MACRO_DIR([m4])
AM_CONFIG_HEADER([config.h])
AC_CONFIG_SRCDIR([src/nestegg.c])
AM_INIT_AUTOMAKE
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
dnl Library versioning
dnl CURRENT, REVISION, AGE
dnl - library source changed -> increment REVISION
dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0
dnl - interfaces added -> increment AGE
dnl - interfaces removed -> AGE = 0
NESTEGG_CURRENT=0
NESTEGG_REVISION=0
NESTEGG_AGE=1
AC_SUBST(NESTEGG_CURRENT)
AC_SUBST(NESTEGG_REVISION)
AC_SUBST(NESTEGG_AGE)
dnl --------------------------------------------------
dnl Check for programs
dnl --------------------------------------------------
dnl save $CFLAGS since AC_PROG_CC likes to insert "-g -O2"
dnl if $CFLAGS is blank
cflags_save="$CFLAGS"
AC_PROG_CC
AC_PROG_CPP
CFLAGS="$cflags_save"
AM_PROG_CC_C_O
AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL
dnl Check for doxygen
AC_ARG_ENABLE([doc],
AS_HELP_STRING([--enable-doc], [Build API documentation]),
[ac_enable_doc=$enableval], [ac_enable_doc=auto])
if test "x$ac_enable_doc" != "xno"; then
AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, true, false)
if test "x$HAVE_DOXYGEN" = "xfalse" -a "x$ac_enable_doc" = "xyes"; then
AC_MSG_ERROR([*** API documentation explicitly requested but Doxygen not found])
fi
else
HAVE_DOXYGEN=false
fi
AM_CONDITIONAL(HAVE_DOXYGEN,$HAVE_DOXYGEN)
if test $HAVE_DOXYGEN = "false"; then
AC_MSG_WARN([*** doxygen not found, API documentation will not be built])
fi
# Generate portable stdint.h replacement
AX_CREATE_STDINT_H(include/nestegg/nestegg-stdint.h)
# Test whenever ld supports -version-script
AC_PROG_LD
AC_PROG_LD_GNU
AC_MSG_CHECKING([how to control symbol export])
dnl --------------------------------------------------
dnl Do substitutions
dnl --------------------------------------------------
AC_SUBST(DEBUG)
AC_SUBST(PROFILE)
AC_OUTPUT([
Makefile
docs/Makefile
docs/Doxyfile
nestegg.pc
nestegg-uninstalled.pc
])
AS_AC_EXPAND(LIBDIR, ${libdir})
AS_AC_EXPAND(INCLUDEDIR, ${includedir})
AS_AC_EXPAND(BINDIR, ${bindir})
AS_AC_EXPAND(DOCDIR, ${docdir})
if test $HAVE_DOXYGEN = "false"; then
doc_build="no"
else
doc_build="yes"
fi
AC_MSG_RESULT([
------------------------------------------------------------------------
$PACKAGE $VERSION: Automatic configuration OK.
General configuration:
API Documentation: .......... ${doc_build}
Installation paths:
libnestegg: .................. ${LIBDIR}
C header files: .............. ${INCLUDEDIR}/nestegg
Documentation: ............... ${DOCDIR}
Building:
Type 'make' to compile $PACKAGE.
Type 'make install' to install $PACKAGE.
Example programs will be built but not installed.
------------------------------------------------------------------------
])

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doc_DATA = doxygen-build.stamp
EXTRA_DIST = Doxyfile.in
if HAVE_DOXYGEN
doxygen-build.stamp: Doxyfile
doxygen
touch doxygen-build.stamp
else
doxygen-build.stamp:
echo "*** Warning: Doxygen not found; documentation will not be built."
touch doxygen-build.stamp
endif
dist_docdir = $(distdir)/libnestegg
dist-hook:
if test -d html; then \
mkdir $(dist_docdir); \
echo -n "copying built documenation..."; \
cp -rp html $(dist_docdir)/html; \
echo "OK"; \
fi
install-data-local: doxygen-build.stamp
$(mkinstalldirs) $(DESTDIR)$(docdir)
if test -d html; then \
cp -rp html $(DESTDIR)$(docdir)/html; \
fi
uninstall-local:
rm -rf $(DESTDIR)$(docdir)
clean-local:
if test -d html; then rm -rf html; fi
if test -f doxygen-build.stamp; then rm -f doxygen-build.stamp; fi

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halloc 1.2.1
============
Hierarchical memory heap interface - an extension to standard
malloc/free interface that simplifies tasks of memory disposal
when allocated structures exhibit hierarchical properties.
http://swapped.cc/halloc
=
To build libhalloc.a with GNU tools run
make
To install in /usr/include and /usr/lib
make install
To cleanup the build files
make clean
=
halloc-1.2.1
* fixed a double-free bug in _set_allocator() as per
Matthew Gregan comments
* switched to using NULL instead of 0 where applicable
halloc-1.2.0
* added missing <string.h> include to halloc.c
* improved standard compliance thanks to the feedback
received from Stan Tobias. Two things were fixed -
- hblock_t structure no longer uses zero-sized 'data'
array, which happened to be common, but non-standard
extension;
- secondly, added the code to test the behaviour of
realloc(ptr, 0). Standard allows it NOT to act as
free(), in which case halloc will use its own version
of allocator calling free() when neccessary.
halloc-1.1.0
* initial public release (rewrite of hhmalloc library)
=============================================================================
Copyright (c) 2004-2010, Alex Pankratov (ap@swapped.cc). All rights reserved.

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/*
* Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
*
* Hierarchical memory allocator, 1.2.1
* http://swapped.cc/halloc
*/
/*
* The program is distributed under terms of BSD license.
* You can obtain the copy of the license by visiting:
*
* http://www.opensource.org/licenses/bsd-license.php
*/
#ifndef _LIBP_HALLOC_H_
#define _LIBP_HALLOC_H_
#include <stddef.h> /* size_t */
/*
* Core API
*/
void * halloc (void * block, size_t len);
void hattach(void * block, void * parent);
/*
* standard malloc/free api
*/
void * h_malloc (size_t len);
void * h_calloc (size_t n, size_t len);
void * h_realloc(void * p, size_t len);
void h_free (void * p);
char * h_strdup (const char * str);
/*
* the underlying allocator
*/
typedef void * (* realloc_t)(void * ptr, size_t len);
extern realloc_t halloc_allocator;
#endif

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/*
* Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
*
* Hierarchical memory allocator, 1.2.1
* http://swapped.cc/halloc
*/
/*
* The program is distributed under terms of BSD license.
* You can obtain the copy of the license by visiting:
*
* http://www.opensource.org/licenses/bsd-license.php
*/
#ifndef _LIBP_ALIGN_H_
#define _LIBP_ALIGN_H_
/*
* a type with the most strict alignment requirements
*/
union max_align
{
char c;
short s;
long l;
int i;
float f;
double d;
void * v;
void (*q)(void);
};
typedef union max_align max_align_t;
#endif

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/*
* Copyright (c) 2004i-2010 Alex Pankratov. All rights reserved.
*
* Hierarchical memory allocator, 1.2.1
* http://swapped.cc/halloc
*/
/*
* The program is distributed under terms of BSD license.
* You can obtain the copy of the license by visiting:
*
* http://www.opensource.org/licenses/bsd-license.php
*/
#include <stdlib.h> /* realloc */
#include <string.h> /* memset & co */
#include "halloc.h"
#include "align.h"
#include "hlist.h"
/*
* block control header
*/
typedef struct hblock
{
#ifndef NDEBUG
#define HH_MAGIC 0x20040518L
long magic;
#endif
hlist_item_t siblings; /* 2 pointers */
hlist_head_t children; /* 1 pointer */
max_align_t data[1]; /* not allocated, see below */
} hblock_t;
#define sizeof_hblock offsetof(hblock_t, data)
/*
*
*/
realloc_t halloc_allocator = NULL;
#define allocator halloc_allocator
/*
* static methods
*/
static void _set_allocator(void);
static void * _realloc(void * ptr, size_t n);
static int _relate(hblock_t * b, hblock_t * p);
static void _free_children(hblock_t * p);
/*
* Core API
*/
void * halloc(void * ptr, size_t len)
{
hblock_t * p;
/* set up default allocator */
if (! allocator)
{
_set_allocator();
assert(allocator);
}
/* calloc */
if (! ptr)
{
if (! len)
return NULL;
p = allocator(0, len + sizeof_hblock);
if (! p)
return NULL;
#ifndef NDEBUG
p->magic = HH_MAGIC;
#endif
hlist_init(&p->children);
hlist_init_item(&p->siblings);
return p->data;
}
p = structof(ptr, hblock_t, data);
assert(p->magic == HH_MAGIC);
/* realloc */
if (len)
{
p = allocator(p, len + sizeof_hblock);
if (! p)
return NULL;
hlist_relink(&p->siblings);
hlist_relink_head(&p->children);
return p->data;
}
/* free */
_free_children(p);
hlist_del(&p->siblings);
allocator(p, 0);
return NULL;
}
void hattach(void * block, void * parent)
{
hblock_t * b, * p;
if (! block)
{
assert(! parent);
return;
}
/* detach */
b = structof(block, hblock_t, data);
assert(b->magic == HH_MAGIC);
hlist_del(&b->siblings);
if (! parent)
return;
/* attach */
p = structof(parent, hblock_t, data);
assert(p->magic == HH_MAGIC);
/* sanity checks */
assert(b != p); /* trivial */
assert(! _relate(p, b)); /* heavy ! */
hlist_add(&p->children, &b->siblings);
}
/*
* malloc/free api
*/
void * h_malloc(size_t len)
{
return halloc(0, len);
}
void * h_calloc(size_t n, size_t len)
{
void * ptr = halloc(0, len*=n);
return ptr ? memset(ptr, 0, len) : NULL;
}
void * h_realloc(void * ptr, size_t len)
{
return halloc(ptr, len);
}
void h_free(void * ptr)
{
halloc(ptr, 0);
}
char * h_strdup(const char * str)
{
size_t len = strlen(str);
char * ptr = halloc(0, len + 1);
return ptr ? (ptr[len] = 0, memcpy(ptr, str, len)) : NULL;
}
/*
* static stuff
*/
static void _set_allocator(void)
{
void * p;
assert(! allocator);
/*
* the purpose of the test below is to check the behaviour
* of realloc(ptr, 0), which is defined in the standard
* as an implementation-specific. if it returns zero,
* then it's equivalent to free(). it can however return
* non-zero, in which case it cannot be used for freeing
* memory blocks and we'll need to supply our own version
*
* Thanks to Stan Tobias for pointing this tricky part out.
*/
allocator = realloc;
if (! (p = malloc(1)))
/* hmm */
return;
if ((p = realloc(p, 0)))
{
/* realloc cannot be used as free() */
allocator = _realloc;
free(p);
}
}
static void * _realloc(void * ptr, size_t n)
{
/*
* free'ing realloc()
*/
if (n)
return realloc(ptr, n);
free(ptr);
return NULL;
}
static int _relate(hblock_t * b, hblock_t * p)
{
hlist_item_t * i;
if (!b || !p)
return 0;
/*
* since there is no 'parent' pointer, which would've allowed
* O(log(n)) upward traversal, the check must use O(n) downward
* iteration of the entire hierarchy; and this can be VERY SLOW
*/
hlist_for_each(i, &p->children)
{
hblock_t * q = structof(i, hblock_t, siblings);
if (q == b || _relate(b, q))
return 1;
}
return 0;
}
static void _free_children(hblock_t * p)
{
hlist_item_t * i, * tmp;
#ifndef NDEBUG
/*
* this catches loops in hierarchy with almost zero
* overhead (compared to _relate() running time)
*/
assert(p && p->magic == HH_MAGIC);
p->magic = 0;
#endif
hlist_for_each_safe(i, tmp, &p->children)
{
hblock_t * q = structof(i, hblock_t, siblings);
_free_children(q);
allocator(q, 0);
}
}

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/*
* Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
*
* Hierarchical memory allocator, 1.2.1
* http://swapped.cc/halloc
*/
/*
* The program is distributed under terms of BSD license.
* You can obtain the copy of the license by visiting:
*
* http://www.opensource.org/licenses/bsd-license.php
*/
#ifndef _LIBP_HLIST_H_
#define _LIBP_HLIST_H_
#include <assert.h>
#include "macros.h" /* static_inline */
/*
* weak double-linked list w/ tail sentinel
*/
typedef struct hlist_head hlist_head_t;
typedef struct hlist_item hlist_item_t;
/*
*
*/
struct hlist_head
{
hlist_item_t * next;
};
struct hlist_item
{
hlist_item_t * next;
hlist_item_t ** prev;
};
/*
* shared tail sentinel
*/
struct hlist_item hlist_null;
/*
*
*/
#define __hlist_init(h) { &hlist_null }
#define __hlist_init_item(i) { &hlist_null, &(i).next }
static_inline void hlist_init(hlist_head_t * h);
static_inline void hlist_init_item(hlist_item_t * i);
/* static_inline void hlist_purge(hlist_head_t * h); */
/* static_inline bool_t hlist_empty(const hlist_head_t * h); */
/* static_inline hlist_item_t * hlist_head(const hlist_head_t * h); */
/* static_inline hlist_item_t * hlist_next(const hlist_item_t * i); */
/* static_inline hlist_item_t * hlist_prev(const hlist_item_t * i,
const hlist_head_t * h); */
static_inline void hlist_add(hlist_head_t * h, hlist_item_t * i);
/* static_inline void hlist_add_prev(hlist_item_t * l, hlist_item_t * i); */
/* static_inline void hlist_add_next(hlist_item_t * l, hlist_item_t * i); */
static_inline void hlist_del(hlist_item_t * i);
static_inline void hlist_relink(hlist_item_t * i);
static_inline void hlist_relink_head(hlist_head_t * h);
#define hlist_for_each(i, h) \
for (i = (h)->next; i != &hlist_null; i = i->next)
#define hlist_for_each_safe(i, tmp, h) \
for (i = (h)->next, tmp = i->next; \
i!= &hlist_null; \
i = tmp, tmp = i->next)
/*
* static
*/
static_inline void hlist_init(hlist_head_t * h)
{
assert(h);
h->next = &hlist_null;
}
static_inline void hlist_init_item(hlist_item_t * i)
{
assert(i);
i->prev = &i->next;
i->next = &hlist_null;
}
static_inline void hlist_add(hlist_head_t * h, hlist_item_t * i)
{
hlist_item_t * next;
assert(h && i);
next = i->next = h->next;
next->prev = &i->next;
h->next = i;
i->prev = &h->next;
}
static_inline void hlist_del(hlist_item_t * i)
{
hlist_item_t * next;
assert(i);
next = i->next;
next->prev = i->prev;
*i->prev = next;
hlist_init_item(i);
}
static_inline void hlist_relink(hlist_item_t * i)
{
assert(i);
*i->prev = i;
i->next->prev = &i->next;
}
static_inline void hlist_relink_head(hlist_head_t * h)
{
assert(h);
h->next->prev = &h->next;
}
#endif

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/*
* Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
*
* Hierarchical memory allocator, 1.2.1
* http://swapped.cc/halloc
*/
/*
* The program is distributed under terms of BSD license.
* You can obtain the copy of the license by visiting:
*
* http://www.opensource.org/licenses/bsd-license.php
*/
#ifndef _LIBP_MACROS_H_
#define _LIBP_MACROS_H_
#include <stddef.h> /* offsetof */
/*
restore pointer to the structure by a pointer to its field
*/
#define structof(p,t,f) ((t*)(- offsetof(t,f) + (char*)(p)))
/*
* redefine for the target compiler
*/
#ifdef _WIN32
#define static_inline static __inline
#else
#define static_inline static __inline__
#endif
#endif

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/*
* Copyright © 2010 Mozilla Foundation
*
* This program is made available under an ISC-style license. See the
* accompanying file LICENSE for details.
*/
#ifndef NESTEGG_671cac2a_365d_ed69_d7a3_4491d3538d79
#define NESTEGG_671cac2a_365d_ed69_d7a3_4491d3538d79
#include <nestegg/nestegg-stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/** @mainpage
@section intro Introduction
This is the documentation fot the <tt>libnestegg</tt> C API.
<tt>libnestegg</tt> is a demultiplexing library for <a
href="http://www.matroska.org/">Matroska</a> and <a
href="http://www.webmproject.org/">WebMedia</a> media files.
@section example Example code
@code
nestegg * demux_ctx;
nestegg_init(&demux_ctx, io, NULL);
nestegg_packet * pkt;
while ((r = nestegg_read_packet(demux_ctx, &pkt)) > 0) {
unsigned int track;
nestegg_packet_track(pkt, &track);
// This example decodes the first track only.
if (track == 0) {
unsigned int chunk, chunks;
nestegg_packet_count(pkt, &chunks);
// Decode each chunk of data.
for (chunk = 0; chunk < chunks; ++chunk) {
unsigned char * data;
size_t data_size;
nestegg_packet_data(pkt, chunk, &data, &data_size);
example_codec_decode(codec_ctx, data, data_size);
}
}
nestegg_free_packet(pkt);
}
nestegg_destroy(demux_ctx);
@endcode
*/
/** @file
The <tt>libnestegg</tt> C API. */
#define NESTEGG_TRACK_VIDEO 0 /**< Track is of type video. */
#define NESTEGG_TRACK_AUDIO 1 /**< Track is of type audio. */
#define NESTEGG_CODEC_VP8 0 /**< Track uses Google On2 VP8 codec. */
#define NESTEGG_CODEC_VORBIS 1 /**< Track uses Xiph Vorbis codec. */
#define NESTEGG_SEEK_SET 0 /**< Seek offset relative to beginning of stream. */
#define NESTEGG_SEEK_CUR 1 /**< Seek offset relative to current position in stream. */
#define NESTEGG_SEEK_END 2 /**< Seek offset relative to end of stream. */
#define NESTEGG_LOG_DEBUG 1 /**< Debug level log message. */
#define NESTEGG_LOG_INFO 10 /**< Informational level log message. */
#define NESTEGG_LOG_WARNING 100 /**< Warning level log message. */
#define NESTEGG_LOG_ERROR 1000 /**< Error level log message. */
#define NESTEGG_LOG_CRITICAL 10000 /**< Critical level log message. */
typedef struct nestegg nestegg; /**< Opaque handle referencing the stream state. */
typedef struct nestegg_packet nestegg_packet; /**< Opaque handle referencing a packet of data. */
/** User supplied IO context. */
typedef struct {
/** User supplied read callback.
@param buffer Buffer to read data into.
@param length Length of supplied buffer in bytes.
@param userdata The #userdata supplied by the user.
@retval 1 Read succeeded.
@retval 0 End of stream.
@retval -1 Error. */
int (* read)(void * buffer, size_t length, void * userdata);
/** User supplied seek callback.
@param offset Offset within the stream to seek to.
@param whence Seek direction. One of #NESTEGG_SEEK_SET,
#NESTEGG_SEEK_CUR, or #NESTEGG_SEEK_END.
@param userdata The #userdata supplied by the user.
@retval 0 Seek succeeded.
@retval -1 Error. */
int (* seek)(int64_t offset, int whence, void * userdata);
/** User supplied tell callback.
@param userdata The #userdata supplied by the user.
@returns Current position within the stream.
@retval -1 Error. */
int64_t (* tell)(void * userdata);
/** User supplied pointer to be passed to the IO callbacks. */
void * userdata;
} nestegg_io;
/** Parameters specific to a video track. */
typedef struct {
unsigned int width; /**< Width of the video frame in pixels. */
unsigned int height; /**< Height of the video frame in pixels. */
unsigned int display_width; /**< Display width of the video frame in pixels. */
unsigned int display_height; /**< Display height of the video frame in pixels. */
unsigned int crop_bottom; /**< Pixels to crop from the bottom of the frame. */
unsigned int crop_top; /**< Pixels to crop from the top of the frame. */
unsigned int crop_left; /**< Pixels to crop from the left of the frame. */
unsigned int crop_right; /**< Pixels to crop from the right of the frame. */
} nestegg_video_params;
/** Parameters specific to an audio track. */
typedef struct {
double rate; /**< Sampling rate in Hz. */
unsigned int channels; /**< Number of audio channels. */
unsigned int depth; /**< Bits per sample. */
} nestegg_audio_params;
/** Logging callback function pointer. */
typedef void (* nestegg_log)(nestegg * context, unsigned int severity, char const * format, ...);
/** Initialize a nestegg context. During initialization the parser will
read forward in the stream processing all elements until the first
block of media is reached. All track metadata has been processed at this point.
@param context Storage for the new nestegg context. @see nestegg_destroy
@param io User supplied IO context.
@param callback Optional logging callback function pointer. May be NULL.
@retval 0 Success.
@retval -1 Error. */
int nestegg_init(nestegg ** context, nestegg_io io, nestegg_log callback);
/** Destroy a nestegg context and free associated memory.
@param context #nestegg context to be freed. @see nestegg_init */
void nestegg_destroy(nestegg * context);
/** Query the duration of the media stream in nanoseconds.
@param context Stream context initialized by #nestegg_init.
@param duration Storage for the queried duration.
@retval 0 Success.
@retval -1 Error. */
int nestegg_duration(nestegg * context, uint64_t * duration);
/** Query the tstamp scale of the media stream in nanoseconds.
Timecodes presented by nestegg have been scaled by this value
before presentation to the caller.
@param context Stream context initialized by #nestegg_init.
@param scale Storage for the queried scale factor.
@retval 0 Success.
@retval -1 Error. */
int nestegg_tstamp_scale(nestegg * context, uint64_t * scale);
/** Query the number of tracks in the media stream.
@param context Stream context initialized by #nestegg_init.
@param tracks Storage for the queried track count.
@retval 0 Success.
@retval -1 Error. */
int nestegg_track_count(nestegg * context, unsigned int * tracks);
/** Seek @a track to @a tstamp. Stream seek will terminate at the earliest
key point in the stream at or before @a tstamp. Other tracks in the
stream will output packets with unspecified but nearby timestamps.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@param tstamp Absolute timestamp in nanoseconds.
@retval 0 Success.
@retval -1 Error. */
int nestegg_track_seek(nestegg * context, unsigned int track, uint64_t tstamp);
/** Query the type specified by @a track.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@retval #NESTEGG_TRACK_VIDEO Track type is video.
@retval #NESTEGG_TRACK_AUDIO Track type is audio.
@retval -1 Error. */
int nestegg_track_type(nestegg * context, unsigned int track);
/** Query the codec ID specified by @a track.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@retval #NESTEGG_CODEC_VP8 Track codec is VP8.
@retval #NESTEGG_CODEC_VORBIS Track codec is Vorbis.
@retval -1 Error. */
int nestegg_track_codec_id(nestegg * context, unsigned int track);
/** Query the number of codec initialization chunks for @a track. Each
chunk of data should be passed to the codec initialization functions in
the order returned.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@param count Storage for the queried chunk count.
@retval 0 Success.
@retval -1 Error. */
int nestegg_track_codec_data_count(nestegg * context, unsigned int track,
unsigned int * count);
/** Get a pointer to chunk number @a item of codec initialization data for
@a track.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@param item Zero based chunk item number.
@param data Storage for the queried data pointer.
The data is owned by the #nestegg context.
@param length Storage for the queried data size.
@retval 0 Success.
@retval -1 Error. */
int nestegg_track_codec_data(nestegg * context, unsigned int track, unsigned int item,
unsigned char ** data, size_t * length);
/** Query the video parameters specified by @a track.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@param params Storage for the queried video parameters.
@retval 0 Success.
@retval -1 Error. */
int nestegg_track_video_params(nestegg * context, unsigned int track,
nestegg_video_params * params);
/** Query the audio parameters specified by @a track.
@param context Stream context initialized by #nestegg_init.
@param track Zero based track number.
@param params Storage for the queried audio parameters.
@retval 0 Success.
@retval -1 Error. */
int nestegg_track_audio_params(nestegg * context, unsigned int track,
nestegg_audio_params * params);
/** Read a packet of media data. A packet consists of one or more chunks of
data associated with a single track. nestegg_read_packet should be
called in a loop while the return value is 1 to drive the stream parser
forward. @see nestegg_free_packet
@param context Context returned by #nestegg_init.
@param packet Storage for the returned nestegg_packet.
@retval 1 Additional packets may be read in subsequent calls.
@retval 0 End of stream.
@retval -1 Error. */
int nestegg_read_packet(nestegg * context, nestegg_packet ** packet);
/** Destroy a nestegg_packet and free associated memory.
@param packet #nestegg_packet to be freed. @see nestegg_read_packet */
void nestegg_free_packet(nestegg_packet * packet);
/** Query the track number of @a packet.
@param packet Packet initialized by #nestegg_read_packet.
@param track Storage for the queried zero based track index.
@retval 0 Success.
@retval -1 Error. */
int nestegg_packet_track(nestegg_packet * packet, unsigned int * track);
/** Query the time stamp in nanoseconds of @a packet.
@param packet Packet initialized by #nestegg_read_packet.
@param tstamp Storage for the queried timestamp in nanoseconds.
@retval 0 Success.
@retval -1 Error. */
int nestegg_packet_tstamp(nestegg_packet * packet, uint64_t * tstamp);
/** Query the number of data chunks contained in @a packet.
@param packet Packet initialized by #nestegg_read_packet.
@param count Storage for the queried timestamp in nanoseconds.
@retval 0 Success.
@retval -1 Error. */
int nestegg_packet_count(nestegg_packet * packet, unsigned int * count);
/** Get a pointer to chunk number @a item of packet data.
@param packet Packet initialized by #nestegg_read_packet.
@param item Zero based chunk item number.
@param data Storage for the queried data pointer.
The data is owned by the #nestegg_packet packet.
@param length Storage for the queried data size.
@retval 0 Success.
@retval -1 Error. */
int nestegg_packet_data(nestegg_packet * packet, unsigned int item,
unsigned char ** data, size_t * length);
#ifdef __cplusplus
}
#endif
#endif /* NESTEGG_671cac2a_365d_ed69_d7a3_4491d3538d79 */

43
nestegg/m4/as-ac-expand.m4 Normal file
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@ -0,0 +1,43 @@
dnl as-ac-expand.m4 0.2.0
dnl autostars m4 macro for expanding directories using configure's prefix
dnl thomas@apestaart.org
dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
dnl example
dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
AC_DEFUN([AS_AC_EXPAND],
[
EXP_VAR=[$1]
FROM_VAR=[$2]
dnl first expand prefix and exec_prefix if necessary
prefix_save=$prefix
exec_prefix_save=$exec_prefix
dnl if no prefix given, then use /usr/local, the default prefix
if test "x$prefix" = "xNONE"; then
prefix="$ac_default_prefix"
fi
dnl if no exec_prefix given, then use prefix
if test "x$exec_prefix" = "xNONE"; then
exec_prefix=$prefix
fi
full_var="$FROM_VAR"
dnl loop until it doesn't change anymore
while true; do
new_full_var="`eval echo $full_var`"
if test "x$new_full_var" = "x$full_var"; then break; fi
full_var=$new_full_var
done
dnl clean up
full_var=$new_full_var
AC_SUBST([$1], "$full_var")
dnl restore prefix and exec_prefix
prefix=$prefix_save
exec_prefix=$exec_prefix_save
])

695
nestegg/m4/ax_create_stdint_h.m4 Normal file
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@ -0,0 +1,695 @@
dnl @synopsis AX_CREATE_STDINT_H [( HEADER-TO-GENERATE [, HEDERS-TO-CHECK])]
dnl
dnl the "ISO C9X: 7.18 Integer types <stdint.h>" section requires the
dnl existence of an include file <stdint.h> that defines a set of
dnl typedefs, especially uint8_t,int32_t,uintptr_t. Many older
dnl installations will not provide this file, but some will have the
dnl very same definitions in <inttypes.h>. In other enviroments we can
dnl use the inet-types in <sys/types.h> which would define the typedefs
dnl int8_t and u_int8_t respectivly.
dnl
dnl This macros will create a local "_stdint.h" or the headerfile given
dnl as an argument. In many cases that file will just "#include
dnl <stdint.h>" or "#include <inttypes.h>", while in other environments
dnl it will provide the set of basic 'stdint's definitions/typedefs:
dnl
dnl int8_t,uint8_t,int16_t,uint16_t,int32_t,uint32_t,intptr_t,uintptr_t
dnl int_least32_t.. int_fast32_t.. intmax_t
dnl
dnl which may or may not rely on the definitions of other files, or
dnl using the AC_CHECK_SIZEOF macro to determine the actual sizeof each
dnl type.
dnl
dnl if your header files require the stdint-types you will want to
dnl create an installable file mylib-int.h that all your other
dnl installable header may include. So if you have a library package
dnl named "mylib", just use
dnl
dnl AX_CREATE_STDINT_H(mylib-int.h)
dnl
dnl in configure.ac and go to install that very header file in
dnl Makefile.am along with the other headers (mylib.h) - and the
dnl mylib-specific headers can simply use "#include <mylib-int.h>" to
dnl obtain the stdint-types.
dnl
dnl Remember, if the system already had a valid <stdint.h>, the
dnl generated file will include it directly. No need for fuzzy
dnl HAVE_STDINT_H things... (oops, GCC 4.2.x has deliberatly disabled
dnl its stdint.h for non-c99 compilation and the c99-mode is not the
dnl default. Therefore this macro will not use the compiler's stdint.h
dnl - please complain to the GCC developers).
dnl
dnl @category C
dnl @author Guido U. Draheim <guidod@gmx.de>
dnl @version 2006-10-13
dnl @license GPLWithACException
AC_DEFUN([AX_CHECK_DATA_MODEL],[
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(void*)
ac_cv_char_data_model=""
ac_cv_char_data_model="$ac_cv_char_data_model$ac_cv_sizeof_char"
ac_cv_char_data_model="$ac_cv_char_data_model$ac_cv_sizeof_short"
ac_cv_char_data_model="$ac_cv_char_data_model$ac_cv_sizeof_int"
ac_cv_long_data_model=""
ac_cv_long_data_model="$ac_cv_long_data_model$ac_cv_sizeof_int"
ac_cv_long_data_model="$ac_cv_long_data_model$ac_cv_sizeof_long"
ac_cv_long_data_model="$ac_cv_long_data_model$ac_cv_sizeof_voidp"
AC_MSG_CHECKING([data model])
case "$ac_cv_char_data_model/$ac_cv_long_data_model" in
122/242) ac_cv_data_model="IP16" ; n="standard 16bit machine" ;;
122/244) ac_cv_data_model="LP32" ; n="standard 32bit machine" ;;
122/*) ac_cv_data_model="i16" ; n="unusual int16 model" ;;
124/444) ac_cv_data_model="ILP32" ; n="standard 32bit unixish" ;;
124/488) ac_cv_data_model="LP64" ; n="standard 64bit unixish" ;;
124/448) ac_cv_data_model="LLP64" ; n="unusual 64bit unixish" ;;
124/*) ac_cv_data_model="i32" ; n="unusual int32 model" ;;
128/888) ac_cv_data_model="ILP64" ; n="unusual 64bit numeric" ;;
128/*) ac_cv_data_model="i64" ; n="unusual int64 model" ;;
222/*2) ac_cv_data_model="DSP16" ; n="strict 16bit dsptype" ;;
333/*3) ac_cv_data_model="DSP24" ; n="strict 24bit dsptype" ;;
444/*4) ac_cv_data_model="DSP32" ; n="strict 32bit dsptype" ;;
666/*6) ac_cv_data_model="DSP48" ; n="strict 48bit dsptype" ;;
888/*8) ac_cv_data_model="DSP64" ; n="strict 64bit dsptype" ;;
222/*|333/*|444/*|666/*|888/*) :
ac_cv_data_model="iDSP" ; n="unusual dsptype" ;;
*) ac_cv_data_model="none" ; n="very unusual model" ;;
esac
AC_MSG_RESULT([$ac_cv_data_model ($ac_cv_long_data_model, $n)])
])
dnl AX_CHECK_HEADER_STDINT_X([HEADERLIST][,ACTION-IF])
AC_DEFUN([AX_CHECK_HEADER_STDINT_X],[
AC_CACHE_CHECK([for stdint uintptr_t], [ac_cv_header_stdint_x],[
ac_cv_header_stdint_x="" # the 1997 typedefs (inttypes.h)
AC_MSG_RESULT([(..)])
for i in m4_ifval([$1],[$1],[stdint.h inttypes.h sys/inttypes.h sys/types.h])
do
unset ac_cv_type_uintptr_t
unset ac_cv_type_uint64_t
AC_CHECK_TYPE(uintptr_t,[ac_cv_header_stdint_x=$i],continue,[#include <$i>])
AC_CHECK_TYPE(uint64_t,[and64="/uint64_t"],[and64=""],[#include<$i>])
m4_ifvaln([$1],[$1]) break
done
AC_MSG_CHECKING([for stdint uintptr_t])
])
])
AC_DEFUN([AX_CHECK_HEADER_STDINT_O],[
AC_CACHE_CHECK([for stdint uint32_t], [ac_cv_header_stdint_o],[
ac_cv_header_stdint_o="" # the 1995 typedefs (sys/inttypes.h)
AC_MSG_RESULT([(..)])
for i in m4_ifval([$1],[$1],[inttypes.h sys/inttypes.h sys/types.h stdint.h])
do
unset ac_cv_type_uint32_t
unset ac_cv_type_uint64_t
AC_CHECK_TYPE(uint32_t,[ac_cv_header_stdint_o=$i],continue,[#include <$i>])
AC_CHECK_TYPE(uint64_t,[and64="/uint64_t"],[and64=""],[#include<$i>])
m4_ifvaln([$1],[$1]) break
break;
done
AC_MSG_CHECKING([for stdint uint32_t])
])
])
AC_DEFUN([AX_CHECK_HEADER_STDINT_U],[
AC_CACHE_CHECK([for stdint u_int32_t], [ac_cv_header_stdint_u],[
ac_cv_header_stdint_u="" # the BSD typedefs (sys/types.h)
AC_MSG_RESULT([(..)])
for i in m4_ifval([$1],[$1],[sys/types.h inttypes.h sys/inttypes.h]) ; do
unset ac_cv_type_u_int32_t
unset ac_cv_type_u_int64_t
AC_CHECK_TYPE(u_int32_t,[ac_cv_header_stdint_u=$i],continue,[#include <$i>])
AC_CHECK_TYPE(u_int64_t,[and64="/u_int64_t"],[and64=""],[#include<$i>])
m4_ifvaln([$1],[$1]) break
break;
done
AC_MSG_CHECKING([for stdint u_int32_t])
])
])
AC_DEFUN([AX_CREATE_STDINT_H],
[# ------ AX CREATE STDINT H -------------------------------------
AC_MSG_CHECKING([for stdint types])
ac_stdint_h=`echo ifelse($1, , _stdint.h, $1)`
# try to shortcircuit - if the default include path of the compiler
# can find a "stdint.h" header then we assume that all compilers can.
AC_CACHE_VAL([ac_cv_header_stdint_t],[
old_CXXFLAGS="$CXXFLAGS" ; CXXFLAGS=""
old_CPPFLAGS="$CPPFLAGS" ; CPPFLAGS=""
old_CFLAGS="$CFLAGS" ; CFLAGS=""
AC_TRY_COMPILE([#include <stdint.h>],[int_least32_t v = 0;],
[ac_cv_stdint_result="(assuming C99 compatible system)"
ac_cv_header_stdint_t="stdint.h"; ],
[ac_cv_header_stdint_t=""])
if test "$GCC" = "yes" && test ".$ac_cv_header_stdint_t" = "."; then
CFLAGS="-std=c99"
AC_TRY_COMPILE([#include <stdint.h>],[int_least32_t v = 0;],
[AC_MSG_WARN(your GCC compiler has a defunct stdint.h for its default-mode)])
fi
CXXFLAGS="$old_CXXFLAGS"
CPPFLAGS="$old_CPPFLAGS"
CFLAGS="$old_CFLAGS" ])
v="... $ac_cv_header_stdint_h"
if test "$ac_stdint_h" = "stdint.h" ; then
AC_MSG_RESULT([(are you sure you want them in ./stdint.h?)])
elif test "$ac_stdint_h" = "inttypes.h" ; then
AC_MSG_RESULT([(are you sure you want them in ./inttypes.h?)])
elif test "_$ac_cv_header_stdint_t" = "_" ; then
AC_MSG_RESULT([(putting them into $ac_stdint_h)$v])
else
ac_cv_header_stdint="$ac_cv_header_stdint_t"
AC_MSG_RESULT([$ac_cv_header_stdint (shortcircuit)])
fi
if test "_$ac_cv_header_stdint_t" = "_" ; then # can not shortcircuit..
dnl .....intro message done, now do a few system checks.....
dnl btw, all old CHECK_TYPE macros do automatically "DEFINE" a type,
dnl therefore we use the autoconf implementation detail CHECK_TYPE_NEW
dnl instead that is triggered with 3 or more arguments (see types.m4)
inttype_headers=`echo $2 | sed -e 's/,/ /g'`
ac_cv_stdint_result="(no helpful system typedefs seen)"
AX_CHECK_HEADER_STDINT_X(dnl
stdint.h inttypes.h sys/inttypes.h $inttype_headers,
ac_cv_stdint_result="(seen uintptr_t$and64 in $i)")
if test "_$ac_cv_header_stdint_x" = "_" ; then
AX_CHECK_HEADER_STDINT_O(dnl,
inttypes.h sys/inttypes.h stdint.h $inttype_headers,
ac_cv_stdint_result="(seen uint32_t$and64 in $i)")
fi
if test "_$ac_cv_header_stdint_x" = "_" ; then
if test "_$ac_cv_header_stdint_o" = "_" ; then
AX_CHECK_HEADER_STDINT_U(dnl,
sys/types.h inttypes.h sys/inttypes.h $inttype_headers,
ac_cv_stdint_result="(seen u_int32_t$and64 in $i)")
fi fi
dnl if there was no good C99 header file, do some typedef checks...
if test "_$ac_cv_header_stdint_x" = "_" ; then
AC_MSG_CHECKING([for stdint datatype model])
AC_MSG_RESULT([(..)])
AX_CHECK_DATA_MODEL
fi
if test "_$ac_cv_header_stdint_x" != "_" ; then
ac_cv_header_stdint="$ac_cv_header_stdint_x"
elif test "_$ac_cv_header_stdint_o" != "_" ; then
ac_cv_header_stdint="$ac_cv_header_stdint_o"
elif test "_$ac_cv_header_stdint_u" != "_" ; then
ac_cv_header_stdint="$ac_cv_header_stdint_u"
else
ac_cv_header_stdint="stddef.h"
fi
AC_MSG_CHECKING([for extra inttypes in chosen header])
AC_MSG_RESULT([($ac_cv_header_stdint)])
dnl see if int_least and int_fast types are present in _this_ header.
unset ac_cv_type_int_least32_t
unset ac_cv_type_int_fast32_t
AC_CHECK_TYPE(int_least32_t,,,[#include <$ac_cv_header_stdint>])
AC_CHECK_TYPE(int_fast32_t,,,[#include<$ac_cv_header_stdint>])
AC_CHECK_TYPE(intmax_t,,,[#include <$ac_cv_header_stdint>])
fi # shortcircut to system "stdint.h"
# ------------------ PREPARE VARIABLES ------------------------------
if test "$GCC" = "yes" ; then
ac_cv_stdint_message="using gnu compiler "`$CC --version | head -1`
else
ac_cv_stdint_message="using $CC"
fi
AC_MSG_RESULT([make use of $ac_cv_header_stdint in $ac_stdint_h dnl
$ac_cv_stdint_result])
dnl -----------------------------------------------------------------
# ----------------- DONE inttypes.h checks START header -------------
AC_CONFIG_COMMANDS([$ac_stdint_h],[
AC_MSG_NOTICE(creating $ac_stdint_h : $_ac_stdint_h)
ac_stdint=$tmp/_stdint.h
echo "#ifndef" $_ac_stdint_h >$ac_stdint
echo "#define" $_ac_stdint_h "1" >>$ac_stdint
echo "#ifndef" _GENERATED_STDINT_H >>$ac_stdint
echo "#define" _GENERATED_STDINT_H '"'$PACKAGE $VERSION'"' >>$ac_stdint
echo "/* generated $ac_cv_stdint_message */" >>$ac_stdint
if test "_$ac_cv_header_stdint_t" != "_" ; then
echo "#define _STDINT_HAVE_STDINT_H" "1" >>$ac_stdint
echo "#include <stdint.h>" >>$ac_stdint
echo "#endif" >>$ac_stdint
echo "#endif" >>$ac_stdint
else
cat >>$ac_stdint <<STDINT_EOF
/* ................... shortcircuit part ........................... */
#if defined HAVE_STDINT_H || defined _STDINT_HAVE_STDINT_H
#include <stdint.h>
#else
#include <stddef.h>
/* .................... configured part ............................ */
STDINT_EOF
echo "/* whether we have a C99 compatible stdint header file */" >>$ac_stdint
if test "_$ac_cv_header_stdint_x" != "_" ; then
ac_header="$ac_cv_header_stdint_x"
echo "#define _STDINT_HEADER_INTPTR" '"'"$ac_header"'"' >>$ac_stdint
else
echo "/* #undef _STDINT_HEADER_INTPTR */" >>$ac_stdint
fi
echo "/* whether we have a C96 compatible inttypes header file */" >>$ac_stdint
if test "_$ac_cv_header_stdint_o" != "_" ; then
ac_header="$ac_cv_header_stdint_o"
echo "#define _STDINT_HEADER_UINT32" '"'"$ac_header"'"' >>$ac_stdint
else
echo "/* #undef _STDINT_HEADER_UINT32 */" >>$ac_stdint
fi
echo "/* whether we have a BSD compatible inet types header */" >>$ac_stdint
if test "_$ac_cv_header_stdint_u" != "_" ; then
ac_header="$ac_cv_header_stdint_u"
echo "#define _STDINT_HEADER_U_INT32" '"'"$ac_header"'"' >>$ac_stdint
else
echo "/* #undef _STDINT_HEADER_U_INT32 */" >>$ac_stdint
fi
echo "" >>$ac_stdint
if test "_$ac_header" != "_" ; then if test "$ac_header" != "stddef.h" ; then
echo "#include <$ac_header>" >>$ac_stdint
echo "" >>$ac_stdint
fi fi
echo "/* which 64bit typedef has been found */" >>$ac_stdint
if test "$ac_cv_type_uint64_t" = "yes" ; then
echo "#define _STDINT_HAVE_UINT64_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_UINT64_T */" >>$ac_stdint
fi
if test "$ac_cv_type_u_int64_t" = "yes" ; then
echo "#define _STDINT_HAVE_U_INT64_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_U_INT64_T */" >>$ac_stdint
fi
echo "" >>$ac_stdint
echo "/* which type model has been detected */" >>$ac_stdint
if test "_$ac_cv_char_data_model" != "_" ; then
echo "#define _STDINT_CHAR_MODEL" "$ac_cv_char_data_model" >>$ac_stdint
echo "#define _STDINT_LONG_MODEL" "$ac_cv_long_data_model" >>$ac_stdint
else
echo "/* #undef _STDINT_CHAR_MODEL // skipped */" >>$ac_stdint
echo "/* #undef _STDINT_LONG_MODEL // skipped */" >>$ac_stdint
fi
echo "" >>$ac_stdint
echo "/* whether int_least types were detected */" >>$ac_stdint
if test "$ac_cv_type_int_least32_t" = "yes"; then
echo "#define _STDINT_HAVE_INT_LEAST32_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_INT_LEAST32_T */" >>$ac_stdint
fi
echo "/* whether int_fast types were detected */" >>$ac_stdint
if test "$ac_cv_type_int_fast32_t" = "yes"; then
echo "#define _STDINT_HAVE_INT_FAST32_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_INT_FAST32_T */" >>$ac_stdint
fi
echo "/* whether intmax_t type was detected */" >>$ac_stdint
if test "$ac_cv_type_intmax_t" = "yes"; then
echo "#define _STDINT_HAVE_INTMAX_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_INTMAX_T */" >>$ac_stdint
fi
echo "" >>$ac_stdint
cat >>$ac_stdint <<STDINT_EOF
/* .................... detections part ............................ */
/* whether we need to define bitspecific types from compiler base types */
#ifndef _STDINT_HEADER_INTPTR
#ifndef _STDINT_HEADER_UINT32
#ifndef _STDINT_HEADER_U_INT32
#define _STDINT_NEED_INT_MODEL_T
#else
#define _STDINT_HAVE_U_INT_TYPES
#endif
#endif
#endif
#ifdef _STDINT_HAVE_U_INT_TYPES
#undef _STDINT_NEED_INT_MODEL_T
#endif
#ifdef _STDINT_CHAR_MODEL
#if _STDINT_CHAR_MODEL+0 == 122 || _STDINT_CHAR_MODEL+0 == 124
#ifndef _STDINT_BYTE_MODEL
#define _STDINT_BYTE_MODEL 12
#endif
#endif
#endif
#ifndef _STDINT_HAVE_INT_LEAST32_T
#define _STDINT_NEED_INT_LEAST_T
#endif
#ifndef _STDINT_HAVE_INT_FAST32_T
#define _STDINT_NEED_INT_FAST_T
#endif
#ifndef _STDINT_HEADER_INTPTR
#define _STDINT_NEED_INTPTR_T
#ifndef _STDINT_HAVE_INTMAX_T
#define _STDINT_NEED_INTMAX_T
#endif
#endif
/* .................... definition part ............................ */
/* some system headers have good uint64_t */
#ifndef _HAVE_UINT64_T
#if defined _STDINT_HAVE_UINT64_T || defined HAVE_UINT64_T
#define _HAVE_UINT64_T
#elif defined _STDINT_HAVE_U_INT64_T || defined HAVE_U_INT64_T
#define _HAVE_UINT64_T
typedef u_int64_t uint64_t;
#endif
#endif
#ifndef _HAVE_UINT64_T
/* .. here are some common heuristics using compiler runtime specifics */
#if defined __STDC_VERSION__ && defined __STDC_VERSION__ >= 199901L
#define _HAVE_UINT64_T
#define _HAVE_LONGLONG_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;
#elif !defined __STRICT_ANSI__
#if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__
#define _HAVE_UINT64_T
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#elif defined __GNUC__ || defined __MWERKS__ || defined __ELF__
/* note: all ELF-systems seem to have loff-support which needs 64-bit */
#if !defined _NO_LONGLONG
#define _HAVE_UINT64_T
#define _HAVE_LONGLONG_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;
#endif
#elif defined __alpha || (defined __mips && defined _ABIN32)
#if !defined _NO_LONGLONG
typedef long int64_t;
typedef unsigned long uint64_t;
#endif
/* compiler/cpu type to define int64_t */
#endif
#endif
#endif
#if defined _STDINT_HAVE_U_INT_TYPES
/* int8_t int16_t int32_t defined by inet code, redeclare the u_intXX types */
typedef u_int8_t uint8_t;
typedef u_int16_t uint16_t;
typedef u_int32_t uint32_t;
/* glibc compatibility */
#ifndef __int8_t_defined
#define __int8_t_defined
#endif
#endif
#ifdef _STDINT_NEED_INT_MODEL_T
/* we must guess all the basic types. Apart from byte-adressable system, */
/* there a few 32-bit-only dsp-systems that we guard with BYTE_MODEL 8-} */
/* (btw, those nibble-addressable systems are way off, or so we assume) */
dnl /* have a look at "64bit and data size neutrality" at */
dnl /* http://unix.org/version2/whatsnew/login_64bit.html */
dnl /* (the shorthand "ILP" types always have a "P" part) */
#if defined _STDINT_BYTE_MODEL
#if _STDINT_LONG_MODEL+0 == 242
/* 2:4:2 = IP16 = a normal 16-bit system */
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef char int8_t;
typedef short int16_t;
typedef long int32_t;
#endif
#elif _STDINT_LONG_MODEL+0 == 244 || _STDINT_LONG_MODEL == 444
/* 2:4:4 = LP32 = a 32-bit system derived from a 16-bit */
/* 4:4:4 = ILP32 = a normal 32-bit system */
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef char int8_t;
typedef short int16_t;
typedef int int32_t;
#endif
#elif _STDINT_LONG_MODEL+0 == 484 || _STDINT_LONG_MODEL+0 == 488
/* 4:8:4 = IP32 = a 32-bit system prepared for 64-bit */
/* 4:8:8 = LP64 = a normal 64-bit system */
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef char int8_t;
typedef short int16_t;
typedef int int32_t;
#endif
/* this system has a "long" of 64bit */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef unsigned long uint64_t;
typedef long int64_t;
#endif
#elif _STDINT_LONG_MODEL+0 == 448
/* LLP64 a 64-bit system derived from a 32-bit system */
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef char int8_t;
typedef short int16_t;
typedef int int32_t;
#endif
/* assuming the system has a "long long" */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
#define _HAVE_LONGLONG_UINT64_T
typedef unsigned long long uint64_t;
typedef long long int64_t;
#endif
#else
#define _STDINT_NO_INT32_T
#endif
#else
#define _STDINT_NO_INT8_T
#define _STDINT_NO_INT32_T
#endif
#endif
/*
* quote from SunOS-5.8 sys/inttypes.h:
* Use at your own risk. As of February 1996, the committee is squarely
* behind the fixed sized types; the "least" and "fast" types are still being
* discussed. The probability that the "fast" types may be removed before
* the standard is finalized is high enough that they are not currently
* implemented.
*/
#if defined _STDINT_NEED_INT_LEAST_T
typedef int8_t int_least8_t;
typedef int16_t int_least16_t;
typedef int32_t int_least32_t;
#ifdef _HAVE_UINT64_T
typedef int64_t int_least64_t;
#endif
typedef uint8_t uint_least8_t;
typedef uint16_t uint_least16_t;
typedef uint32_t uint_least32_t;
#ifdef _HAVE_UINT64_T
typedef uint64_t uint_least64_t;
#endif
/* least types */
#endif
#if defined _STDINT_NEED_INT_FAST_T
typedef int8_t int_fast8_t;
typedef int int_fast16_t;
typedef int32_t int_fast32_t;
#ifdef _HAVE_UINT64_T
typedef int64_t int_fast64_t;
#endif
typedef uint8_t uint_fast8_t;
typedef unsigned uint_fast16_t;
typedef uint32_t uint_fast32_t;
#ifdef _HAVE_UINT64_T
typedef uint64_t uint_fast64_t;
#endif
/* fast types */
#endif
#ifdef _STDINT_NEED_INTMAX_T
#ifdef _HAVE_UINT64_T
typedef int64_t intmax_t;
typedef uint64_t uintmax_t;
#else
typedef long intmax_t;
typedef unsigned long uintmax_t;
#endif
#endif
#ifdef _STDINT_NEED_INTPTR_T
#ifndef __intptr_t_defined
#define __intptr_t_defined
/* we encourage using "long" to store pointer values, never use "int" ! */
#if _STDINT_LONG_MODEL+0 == 242 || _STDINT_LONG_MODEL+0 == 484
typedef unsigned int uintptr_t;
typedef int intptr_t;
#elif _STDINT_LONG_MODEL+0 == 244 || _STDINT_LONG_MODEL+0 == 444
typedef unsigned long uintptr_t;
typedef long intptr_t;
#elif _STDINT_LONG_MODEL+0 == 448 && defined _HAVE_UINT64_T
typedef uint64_t uintptr_t;
typedef int64_t intptr_t;
#else /* matches typical system types ILP32 and LP64 - but not IP16 or LLP64 */
typedef unsigned long uintptr_t;
typedef long intptr_t;
#endif
#endif
#endif
/* The ISO C99 standard specifies that in C++ implementations these
should only be defined if explicitly requested. */
#if !defined __cplusplus || defined __STDC_CONSTANT_MACROS
#ifndef UINT32_C
/* Signed. */
# define INT8_C(c) c
# define INT16_C(c) c
# define INT32_C(c) c
# ifdef _HAVE_LONGLONG_UINT64_T
# define INT64_C(c) c ## L
# else
# define INT64_C(c) c ## LL
# endif
/* Unsigned. */
# define UINT8_C(c) c ## U
# define UINT16_C(c) c ## U
# define UINT32_C(c) c ## U
# ifdef _HAVE_LONGLONG_UINT64_T
# define UINT64_C(c) c ## UL
# else
# define UINT64_C(c) c ## ULL
# endif
/* Maximal type. */
# ifdef _HAVE_LONGLONG_UINT64_T
# define INTMAX_C(c) c ## L
# define UINTMAX_C(c) c ## UL
# else
# define INTMAX_C(c) c ## LL
# define UINTMAX_C(c) c ## ULL
# endif
/* literalnumbers */
#endif
#endif
/* These limits are merily those of a two complement byte-oriented system */
/* Minimum of signed integral types. */
# define INT8_MIN (-128)
# define INT16_MIN (-32767-1)
# define INT32_MIN (-2147483647-1)
# define INT64_MIN (-__INT64_C(9223372036854775807)-1)
/* Maximum of signed integral types. */
# define INT8_MAX (127)
# define INT16_MAX (32767)
# define INT32_MAX (2147483647)
# define INT64_MAX (__INT64_C(9223372036854775807))
/* Maximum of unsigned integral types. */
# define UINT8_MAX (255)
# define UINT16_MAX (65535)
# define UINT32_MAX (4294967295U)
# define UINT64_MAX (__UINT64_C(18446744073709551615))
/* Minimum of signed integral types having a minimum size. */
# define INT_LEAST8_MIN INT8_MIN
# define INT_LEAST16_MIN INT16_MIN
# define INT_LEAST32_MIN INT32_MIN
# define INT_LEAST64_MIN INT64_MIN
/* Maximum of signed integral types having a minimum size. */
# define INT_LEAST8_MAX INT8_MAX
# define INT_LEAST16_MAX INT16_MAX
# define INT_LEAST32_MAX INT32_MAX
# define INT_LEAST64_MAX INT64_MAX
/* Maximum of unsigned integral types having a minimum size. */
# define UINT_LEAST8_MAX UINT8_MAX
# define UINT_LEAST16_MAX UINT16_MAX
# define UINT_LEAST32_MAX UINT32_MAX
# define UINT_LEAST64_MAX UINT64_MAX
/* shortcircuit*/
#endif
/* once */
#endif
#endif
STDINT_EOF
fi
if cmp -s $ac_stdint_h $ac_stdint 2>/dev/null; then
AC_MSG_NOTICE([$ac_stdint_h is unchanged])
else
ac_dir=`AS_DIRNAME(["$ac_stdint_h"])`
AS_MKDIR_P(["$ac_dir"])
rm -f $ac_stdint_h
mv $ac_stdint $ac_stdint_h
fi
],[# variables for create stdint.h replacement
PACKAGE="$PACKAGE"
VERSION="$VERSION"
ac_stdint_h="$ac_stdint_h"
_ac_stdint_h=AS_TR_CPP(_$PACKAGE-$ac_stdint_h)
ac_cv_stdint_message="$ac_cv_stdint_message"
ac_cv_header_stdint_t="$ac_cv_header_stdint_t"
ac_cv_header_stdint_x="$ac_cv_header_stdint_x"
ac_cv_header_stdint_o="$ac_cv_header_stdint_o"
ac_cv_header_stdint_u="$ac_cv_header_stdint_u"
ac_cv_type_uint64_t="$ac_cv_type_uint64_t"
ac_cv_type_u_int64_t="$ac_cv_type_u_int64_t"
ac_cv_char_data_model="$ac_cv_char_data_model"
ac_cv_long_data_model="$ac_cv_long_data_model"
ac_cv_type_int_least32_t="$ac_cv_type_int_least32_t"
ac_cv_type_int_fast32_t="$ac_cv_type_int_fast32_t"
ac_cv_type_intmax_t="$ac_cv_type_intmax_t"
])
])

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# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
#
# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# PKG_PROG_PKG_CONFIG([MIN-VERSION])
# ----------------------------------
AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
fi
if test -n "$PKG_CONFIG"; then
_pkg_min_version=m4_default([$1], [0.9.0])
AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
PKG_CONFIG=""
fi
fi[]dnl
])# PKG_PROG_PKG_CONFIG
# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
#
# Check to see whether a particular set of modules exists. Similar
# to PKG_CHECK_MODULES(), but does not set variables or print errors.
#
#
# Similar to PKG_CHECK_MODULES, make sure that the first instance of
# this or PKG_CHECK_MODULES is called, or make sure to call
# PKG_CHECK_EXISTS manually
# --------------------------------------------------------------
AC_DEFUN([PKG_CHECK_EXISTS],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
if test -n "$PKG_CONFIG" && \
AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
m4_ifval([$2], [$2], [:])
m4_ifvaln([$3], [else
$3])dnl
fi])
# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
# ---------------------------------------------
m4_define([_PKG_CONFIG],
[if test -n "$PKG_CONFIG"; then
if test -n "$$1"; then
pkg_cv_[]$1="$$1"
else
PKG_CHECK_EXISTS([$3],
[pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
[pkg_failed=yes])
fi
else
pkg_failed=untried
fi[]dnl
])# _PKG_CONFIG
# _PKG_SHORT_ERRORS_SUPPORTED
# -----------------------------
AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
_pkg_short_errors_supported=yes
else
_pkg_short_errors_supported=no
fi[]dnl
])# _PKG_SHORT_ERRORS_SUPPORTED
# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
# [ACTION-IF-NOT-FOUND])
#
#
# Note that if there is a possibility the first call to
# PKG_CHECK_MODULES might not happen, you should be sure to include an
# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
#
#
# --------------------------------------------------------------
AC_DEFUN([PKG_CHECK_MODULES],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
pkg_failed=no
AC_MSG_CHECKING([for $1])
_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
_PKG_CONFIG([$1][_LIBS], [libs], [$2])
m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
and $1[]_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.])
if test $pkg_failed = yes; then
_PKG_SHORT_ERRORS_SUPPORTED
if test $_pkg_short_errors_supported = yes; then
$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
else
$1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
fi
# Put the nasty error message in config.log where it belongs
echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
ifelse([$4], , [AC_MSG_ERROR(dnl
[Package requirements ($2) were not met:
$$1_PKG_ERRORS
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
_PKG_TEXT
])],
[AC_MSG_RESULT([no])
$4])
elif test $pkg_failed = untried; then
ifelse([$4], , [AC_MSG_FAILURE(dnl
[The pkg-config script could not be found or is too old. Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.
_PKG_TEXT
To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
[$4])
else
$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
AC_MSG_RESULT([yes])
ifelse([$3], , :, [$3])
fi[]dnl
])# PKG_CHECK_MODULES

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# nestegg uninstalled pkg-config file
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
Name: nestegg
Description: WebM/Matroska demuxer
Version: @VERSION@
Conflicts:
Libs: -L${libdir} -lnestegg
Cflags: -I${includedir}

13
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# nestegg installed pkg-config file
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
Name: nestegg
Description: WebM/Matroska demuxer
Version: @VERSION@
Conflicts:
Libs: -L${libdir} -lnestegg
Cflags: -I${includedir}

1938
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248
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/*
* Copyright © 2010 Mozilla Foundation
*
* This program is made available under an ISC-style license. See the
* accompanying file LICENSE for details.
*/
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "nestegg/nestegg.h"
#undef DEBUG
#define SEEK_TEST
static int
stdio_read(void * p, size_t length, void * fp)
{
size_t r;
r = fread(p, length, 1, fp);
if (r == 0 && feof(fp))
return 0;
return r == 0 ? -1 : 1;
}
static int
stdio_seek(int64_t offset, int whence, void * fp)
{
return fseek(fp, offset, whence);
}
static int64_t
stdio_tell(void * fp)
{
return ftell(fp);
}
static void
log_callback(nestegg * ctx, unsigned int severity, char const * fmt, ...)
{
va_list ap;
char const * sev = NULL;
#ifndef DEBUG
if (severity < NESTEGG_LOG_WARNING)
return;
#endif
switch (severity) {
case NESTEGG_LOG_DEBUG:
sev = "debug: ";
break;
case NESTEGG_LOG_WARNING:
sev = "warning: ";
break;
case NESTEGG_LOG_CRITICAL:
sev = "critical:";
break;
default:
sev = "unknown: ";
}
fprintf(stderr, "%p %s ", (void *) ctx, sev);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
}
int
main(int argc, char * argv[])
{
FILE * fp;
int r, type;
nestegg * ctx;
nestegg_audio_params aparams;
nestegg_packet * pkt;
nestegg_video_params vparams;
size_t length, size;
uint64_t duration, tstamp, pkt_tstamp;
unsigned char * codec_data, * ptr;
unsigned int cnt, i, j, track, tracks, pkt_cnt, pkt_track;
unsigned int data_items = 0;
nestegg_io io = {
stdio_read,
stdio_seek,
stdio_tell,
NULL
};
if (argc != 2)
return EXIT_FAILURE;
fp = fopen(argv[1], "rb");
if (!fp)
return EXIT_FAILURE;
io.userdata = fp;
ctx = NULL;
r = nestegg_init(&ctx, io, log_callback);
if (r != 0)
return EXIT_FAILURE;
nestegg_track_count(ctx, &tracks);
nestegg_duration(ctx, &duration);
#ifdef DEBUG
fprintf(stderr, "media has %u tracks and duration %fs\n", tracks, duration / 1e9);
#endif
for (i = 0; i < tracks; ++i) {
type = nestegg_track_type(ctx, i);
#ifdef DEBUG
fprintf(stderr, "track %u: type: %d codec: %d", i,
type, nestegg_track_codec_id(ctx, i));
#endif
nestegg_track_codec_data_count(ctx, i, &data_items);
for (j = 0; j < data_items; ++j) {
nestegg_track_codec_data(ctx, i, j, &codec_data, &length);
#ifdef DEBUG
fprintf(stderr, " (%p, %u)", codec_data, (unsigned int) length);
#endif
}
if (type == NESTEGG_TRACK_VIDEO) {
nestegg_track_video_params(ctx, i, &vparams);
#ifdef DEBUG
fprintf(stderr, " video: %ux%u (d: %ux%u %ux%ux%ux%u)",
vparams.width, vparams.height,
vparams.display_width, vparams.display_height,
vparams.crop_top, vparams.crop_left, vparams.crop_bottom, vparams.crop_right);
#endif
} else if (type == NESTEGG_TRACK_AUDIO) {
nestegg_track_audio_params(ctx, i, &aparams);
#ifdef DEBUG
fprintf(stderr, " audio: %.2fhz %u bit %u channels",
aparams.rate, aparams.depth, aparams.channels);
#endif
}
#ifdef DEBUG
fprintf(stderr, "\n");
#endif
}
#ifdef SEEK_TEST
#ifdef DEBUG
fprintf(stderr, "seek to middle\n");
#endif
r = nestegg_track_seek(ctx, 0, duration / 2);
if (r == 0) {
#ifdef DEBUG
fprintf(stderr, "middle ");
#endif
r = nestegg_read_packet(ctx, &pkt);
if (r == 1) {
nestegg_packet_track(pkt, &track);
nestegg_packet_count(pkt, &cnt);
nestegg_packet_tstamp(pkt, &tstamp);
#ifdef DEBUG
fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
#endif
nestegg_free_packet(pkt);
} else {
#ifdef DEBUG
fprintf(stderr, "middle seek failed\n");
#endif
}
}
#ifdef DEBUG
fprintf(stderr, "seek to ~end\n");
#endif
r = nestegg_track_seek(ctx, 0, duration - (duration / 10));
if (r == 0) {
#ifdef DEBUG
fprintf(stderr, "end ");
#endif
r = nestegg_read_packet(ctx, &pkt);
if (r == 1) {
nestegg_packet_track(pkt, &track);
nestegg_packet_count(pkt, &cnt);
nestegg_packet_tstamp(pkt, &tstamp);
#ifdef DEBUG
fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
#endif
nestegg_free_packet(pkt);
} else {
#ifdef DEBUG
fprintf(stderr, "end seek failed\n");
#endif
}
}
#ifdef DEBUG
fprintf(stderr, "seek to ~start\n");
#endif
r = nestegg_track_seek(ctx, 0, duration / 10);
if (r == 0) {
#ifdef DEBUG
fprintf(stderr, "start ");
#endif
r = nestegg_read_packet(ctx, &pkt);
if (r == 1) {
nestegg_packet_track(pkt, &track);
nestegg_packet_count(pkt, &cnt);
nestegg_packet_tstamp(pkt, &tstamp);
#ifdef DEBUG
fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
#endif
nestegg_free_packet(pkt);
} else {
#ifdef DEBUG
fprintf(stderr, "start seek failed\n");
#endif
}
}
#endif
while (nestegg_read_packet(ctx, &pkt) > 0) {
nestegg_packet_track(pkt, &pkt_track);
nestegg_packet_count(pkt, &pkt_cnt);
nestegg_packet_tstamp(pkt, &pkt_tstamp);
#ifdef DEBUG
fprintf(stderr, "t %u pts %f frames %u: ", pkt_track, pkt_tstamp / 1e9, pkt_cnt);
#endif
for (i = 0; i < pkt_cnt; ++i) {
nestegg_packet_data(pkt, i, &ptr, &size);
#ifdef DEBUG
fprintf(stderr, "%u ", (unsigned int) size);
#endif
}
#ifdef DEBUG
fprintf(stderr, "\n");
#endif
nestegg_free_packet(pkt);
}
nestegg_destroy(ctx);
fclose(fp);
return EXIT_SUCCESS;
}