Commit aa1132d1 authored by Tom Finegan's avatar Tom Finegan Committed by Gerrit Code Review

Merge "third_party: Roll libwebm snapshot."

parents f94124cf 80ddeb28
......@@ -36,21 +36,30 @@ LIBYUV_SRCS += third_party/libyuv/include/libyuv/basic_types.h \
third_party/libyuv/source/scale_neon64.cc \
third_party/libyuv/source/scale_win.cc \
LIBWEBM_COMMON_SRCS += third_party/libwebm/webmids.hpp
LIBWEBM_COMMON_SRCS += third_party/libwebm/common/hdr_util.cc \
third_party/libwebm/common/hdr_util.h \
third_party/libwebm/common/webmids.h
LIBWEBM_MUXER_SRCS += third_party/libwebm/mkvmuxer.cpp \
third_party/libwebm/mkvmuxerutil.cpp \
third_party/libwebm/mkvwriter.cpp \
third_party/libwebm/mkvmuxer.hpp \
third_party/libwebm/mkvmuxertypes.hpp \
third_party/libwebm/mkvmuxerutil.hpp \
third_party/libwebm/mkvparser.hpp \
third_party/libwebm/mkvwriter.hpp
LIBWEBM_MUXER_SRCS += third_party/libwebm/mkvmuxer/mkvmuxer.cc \
third_party/libwebm/mkvmuxer/mkvmuxerutil.cc \
third_party/libwebm/mkvmuxer/mkvwriter.cc \
third_party/libwebm/mkvmuxer/mkvmuxer.h \
third_party/libwebm/mkvmuxer/mkvmuxertypes.h \
third_party/libwebm/mkvmuxer/mkvmuxerutil.h \
third_party/libwebm/mkvparser/mkvparser.h \
third_party/libwebm/mkvmuxer/mkvwriter.h
LIBWEBM_PARSER_SRCS = third_party/libwebm/mkvparser/mkvparser.cc \
third_party/libwebm/mkvparser/mkvreader.cc \
third_party/libwebm/mkvparser/mkvparser.h \
third_party/libwebm/mkvparser/mkvreader.h
# Add compile flags and include path for libwebm sources.
ifeq ($(CONFIG_WEBM_IO),yes)
CXXFLAGS += -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS
INC_PATH-yes += $(SRC_PATH_BARE)/third_party/libwebm
endif
LIBWEBM_PARSER_SRCS = third_party/libwebm/mkvparser.cpp \
third_party/libwebm/mkvreader.cpp \
third_party/libwebm/mkvparser.hpp \
third_party/libwebm/mkvreader.hpp
# List of examples to build. UTILS are tools meant for distribution
# while EXAMPLES demonstrate specific portions of the API.
......@@ -70,6 +79,7 @@ ifeq ($(CONFIG_LIBYUV),yes)
endif
ifeq ($(CONFIG_WEBM_IO),yes)
vpxdec.SRCS += $(LIBWEBM_COMMON_SRCS)
vpxdec.SRCS += $(LIBWEBM_MUXER_SRCS)
vpxdec.SRCS += $(LIBWEBM_PARSER_SRCS)
vpxdec.SRCS += webmdec.cc webmdec.h
endif
......@@ -93,6 +103,7 @@ endif
ifeq ($(CONFIG_WEBM_IO),yes)
vpxenc.SRCS += $(LIBWEBM_COMMON_SRCS)
vpxenc.SRCS += $(LIBWEBM_MUXER_SRCS)
vpxenc.SRCS += $(LIBWEBM_PARSER_SRCS)
vpxenc.SRCS += webmenc.cc webmenc.h
endif
vpxenc.GUID = 548DEC74-7A15-4B2B-AFC3-AA102E7C25C1
......
......@@ -394,6 +394,12 @@ $(filter %$(ASM).o,$(OBJS-yes)): $(BUILD_PFX)vpx_config.asm
$(shell $(SRC_PATH_BARE)/build/make/version.sh "$(SRC_PATH_BARE)" $(BUILD_PFX)vpx_version.h)
CLEAN-OBJS += $(BUILD_PFX)vpx_version.h
#
# Add include path for libwebm sources.
#
ifeq ($(CONFIG_WEBM_IO),yes)
CXXFLAGS += -I$(SRC_PATH_BARE)/third_party/libwebm
endif
##
## libvpx test directives
......@@ -469,6 +475,7 @@ test_libvpx.$(VCPROJ_SFX): $(LIBVPX_TEST_SRCS) vpx.$(VCPROJ_SFX) gtest.$(VCPROJ_
$(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
--out=$@ $(INTERNAL_CFLAGS) $(CFLAGS) \
-I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/include" \
$(if $(CONFIG_WEBM_IO),-I"$(SRC_PATH_BARE)/third_party/libwebm") \
-L. -l$(CODEC_LIB) -l$(GTEST_LIB) $^
PROJECTS-$(CONFIG_MSVS) += test_libvpx.$(VCPROJ_SFX)
......
......@@ -59,10 +59,10 @@ LIBVPX_TEST_SRCS-$(CONFIG_ENCODERS) += y4m_test.cc ../y4menc.c ../y4menc.h
## WebM Parsing
ifeq ($(CONFIG_WEBM_IO), yes)
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvparser.cpp
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvreader.cpp
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvparser.hpp
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvreader.hpp
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvparser/mkvparser.cc
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvparser/mkvreader.cc
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvparser/mkvparser.h
LIBWEBM_PARSER_SRCS += ../third_party/libwebm/mkvparser/mkvreader.h
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS) += $(LIBWEBM_PARSER_SRCS)
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS) += ../tools_common.h
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS) += ../webmdec.cc
......
......@@ -2,9 +2,10 @@ LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE:= libwebm
LOCAL_SRC_FILES:= mkvparser.cpp \
mkvreader.cpp \
mkvmuxer.cpp \
mkvmuxerutil.cpp \
mkvwriter.cpp
LOCAL_SRC_FILES:= common/hdr_util.cc \
mkvparser/mkvparser.cc \
mkvparser/mkvreader.cc \
mkvmuxer/mkvmuxer.cc \
mkvmuxer/mkvmuxerutil.cc \
mkvmuxer/mkvwriter.cc
include $(BUILD_STATIC_LIBRARY)
URL: https://chromium.googlesource.com/webm/libwebm
Version: 476366249e1fda7710a389cd41c57db42305e0d4
Version: 4ff57859383705fa697fb1a15bab8ef728d0fa74
License: BSD
License File: LICENSE.txt
......
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
1.0.0.1
* fixed item 141
* added item 142
* added this file, RELEASE.TXT, to repository
// Copyright (c) 2016 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 "common/file_util.h"
#include <sys/stat.h>
#ifndef _MSC_VER
#include <unistd.h> // close()
#endif
#include <cstdio>
#include <cstdlib>
#include <fstream>
#include <ios>
namespace libwebm {
std::string GetTempFileName() {
#ifndef _MSC_VER
char temp_file_name_template[] = "libwebm_temp.XXXXXX";
int fd = mkstemp(temp_file_name_template);
if (fd != -1) {
close(fd);
return std::string(temp_file_name_template);
}
return std::string();
#else
char tmp_file_name[_MAX_PATH];
errno_t err = tmpnam_s(tmp_file_name);
if (err == 0) {
return std::string(tmp_file_name);
}
return std::string();
#endif
}
uint64_t GetFileSize(const std::string& file_name) {
uint64_t file_size = 0;
#ifndef _MSC_VER
struct stat st;
st.st_size = 0;
if (stat(file_name.c_str(), &st) == 0) {
#else
struct _stat st;
st.st_size = 0;
if (_stat(file_name.c_str(), &st) == 0) {
#endif
file_size = st.st_size;
}
return file_size;
}
TempFileDeleter::TempFileDeleter() { file_name_ = GetTempFileName(); }
TempFileDeleter::~TempFileDeleter() {
std::ifstream file(file_name_.c_str());
if (file.good()) {
file.close();
std::remove(file_name_.c_str());
}
}
} // namespace libwebm
// Copyright (c) 2016 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 LIBWEBM_COMMON_FILE_UTIL_H_
#define LIBWEBM_COMMON_FILE_UTIL_H_
#include <stdint.h>
#include <string>
#include "mkvmuxer/mkvmuxertypes.h" // LIBWEBM_DISALLOW_COPY_AND_ASSIGN()
namespace libwebm {
// Returns a temporary file name.
std::string GetTempFileName();
// Returns size of file specified by |file_name|, or 0 upon failure.
uint64_t GetFileSize(const std::string& file_name);
// Manages life of temporary file specified at time of construction. Deletes
// file upon destruction.
class TempFileDeleter {
public:
TempFileDeleter();
explicit TempFileDeleter(std::string file_name) : file_name_(file_name) {}
~TempFileDeleter();
const std::string& name() const { return file_name_; }
private:
std::string file_name_;
LIBWEBM_DISALLOW_COPY_AND_ASSIGN(TempFileDeleter);
};
} // namespace libwebm
#endif // LIBWEBM_COMMON_FILE_UTIL_H_
\ No newline at end of file
// Copyright (c) 2016 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 "hdr_util.h"
#include <cstddef>
#include <new>
#include "mkvparser/mkvparser.h"
namespace libwebm {
bool CopyPrimaryChromaticity(const mkvparser::PrimaryChromaticity& parser_pc,
PrimaryChromaticityPtr* muxer_pc) {
muxer_pc->reset(new (std::nothrow)
mkvmuxer::PrimaryChromaticity(parser_pc.x, parser_pc.y));
if (!muxer_pc->get())
return false;
return true;
}
bool MasteringMetadataValuePresent(double value) {
return value != mkvparser::MasteringMetadata::kValueNotPresent;
}
bool CopyMasteringMetadata(const mkvparser::MasteringMetadata& parser_mm,
mkvmuxer::MasteringMetadata* muxer_mm) {
if (MasteringMetadataValuePresent(parser_mm.luminance_max))
muxer_mm->luminance_max = parser_mm.luminance_max;
if (MasteringMetadataValuePresent(parser_mm.luminance_min))
muxer_mm->luminance_min = parser_mm.luminance_min;
PrimaryChromaticityPtr r_ptr(NULL);
PrimaryChromaticityPtr g_ptr(NULL);
PrimaryChromaticityPtr b_ptr(NULL);
PrimaryChromaticityPtr wp_ptr(NULL);
if (parser_mm.r) {
if (!CopyPrimaryChromaticity(*parser_mm.r, &r_ptr))
return false;
}
if (parser_mm.g) {
if (!CopyPrimaryChromaticity(*parser_mm.g, &g_ptr))
return false;
}
if (parser_mm.b) {
if (!CopyPrimaryChromaticity(*parser_mm.b, &b_ptr))
return false;
}
if (parser_mm.white_point) {
if (!CopyPrimaryChromaticity(*parser_mm.white_point, &wp_ptr))
return false;
}
if (!muxer_mm->SetChromaticity(r_ptr.get(), g_ptr.get(), b_ptr.get(),
wp_ptr.get())) {
return false;
}
return true;
}
bool ColourValuePresent(long long value) {
return value != mkvparser::Colour::kValueNotPresent;
}
bool CopyColour(const mkvparser::Colour& parser_colour,
mkvmuxer::Colour* muxer_colour) {
if (!muxer_colour)
return false;
if (ColourValuePresent(parser_colour.matrix_coefficients))
muxer_colour->matrix_coefficients = parser_colour.matrix_coefficients;
if (ColourValuePresent(parser_colour.bits_per_channel))
muxer_colour->bits_per_channel = parser_colour.bits_per_channel;
if (ColourValuePresent(parser_colour.chroma_subsampling_horz))
muxer_colour->chroma_subsampling_horz =
parser_colour.chroma_subsampling_horz;
if (ColourValuePresent(parser_colour.chroma_subsampling_vert))
muxer_colour->chroma_subsampling_vert =
parser_colour.chroma_subsampling_vert;
if (ColourValuePresent(parser_colour.cb_subsampling_horz))
muxer_colour->cb_subsampling_horz = parser_colour.cb_subsampling_horz;
if (ColourValuePresent(parser_colour.cb_subsampling_vert))
muxer_colour->cb_subsampling_vert = parser_colour.cb_subsampling_vert;
if (ColourValuePresent(parser_colour.chroma_siting_horz))
muxer_colour->chroma_siting_horz = parser_colour.chroma_siting_horz;
if (ColourValuePresent(parser_colour.chroma_siting_vert))
muxer_colour->chroma_siting_vert = parser_colour.chroma_siting_vert;
if (ColourValuePresent(parser_colour.range))
muxer_colour->range = parser_colour.range;
if (ColourValuePresent(parser_colour.transfer_characteristics))
muxer_colour->transfer_characteristics =
parser_colour.transfer_characteristics;
if (ColourValuePresent(parser_colour.primaries))
muxer_colour->primaries = parser_colour.primaries;
if (ColourValuePresent(parser_colour.max_cll))
muxer_colour->max_cll = parser_colour.max_cll;
if (ColourValuePresent(parser_colour.max_fall))
muxer_colour->max_fall = parser_colour.max_fall;
if (parser_colour.mastering_metadata) {
mkvmuxer::MasteringMetadata muxer_mm;
if (!CopyMasteringMetadata(*parser_colour.mastering_metadata, &muxer_mm))
return false;
if (!muxer_colour->SetMasteringMetadata(muxer_mm))
return false;
}
return true;
}
} // namespace libwebm
// Copyright (c) 2016 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 LIBWEBM_COMMON_HDR_UTIL_H_
#define LIBWEBM_COMMON_HDR_UTIL_H_
#include <memory>
#include "mkvmuxer/mkvmuxer.h"
namespace mkvparser {
struct Colour;
struct MasteringMetadata;
struct PrimaryChromaticity;
} // namespace mkvparser
namespace libwebm {
// Utility types and functions for working with the Colour element and its
// children. Copiers return true upon success. Presence functions return true
// when the specified element is present.
// TODO(tomfinegan): These should be moved to libwebm_utils once c++11 is
// required by libwebm.
typedef std::auto_ptr<mkvmuxer::PrimaryChromaticity> PrimaryChromaticityPtr;
bool CopyPrimaryChromaticity(const mkvparser::PrimaryChromaticity& parser_pc,
PrimaryChromaticityPtr* muxer_pc);
bool MasteringMetadataValuePresent(double value);
bool CopyMasteringMetadata(const mkvparser::MasteringMetadata& parser_mm,
mkvmuxer::MasteringMetadata* muxer_mm);
bool ColourValuePresent(long long value);
bool CopyColour(const mkvparser::Colour& parser_colour,
mkvmuxer::Colour* muxer_colour);
} // namespace libwebm
#endif // LIBWEBM_COMMON_HDR_UTIL_H_
......@@ -6,10 +6,10 @@
// 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
#ifndef COMMON_WEBMIDS_H_
#define COMMON_WEBMIDS_H_
namespace mkvmuxer {
namespace libwebm {
enum MkvId {
kMkvEBML = 0x1A45DFA3,
......@@ -95,6 +95,35 @@ enum MkvId {
kMkvAspectRatioType = 0x54B3,
kMkvFrameRate = 0x2383E3,
// end video
// colour
kMkvColour = 0x55B0,
kMkvMatrixCoefficients = 0x55B1,
kMkvBitsPerChannel = 0x55B2,
kMkvChromaSubsamplingHorz = 0x55B3,
kMkvChromaSubsamplingVert = 0x55B4,
kMkvCbSubsamplingHorz = 0x55B5,
kMkvCbSubsamplingVert = 0x55B6,
kMkvChromaSitingHorz = 0x55B7,
kMkvChromaSitingVert = 0x55B8,
kMkvRange = 0x55B9,
kMkvTransferCharacteristics = 0x55BA,
kMkvPrimaries = 0x55BB,
kMkvMaxCLL = 0x55BC,
kMkvMaxFALL = 0x55BD,
// mastering metadata
kMkvMasteringMetadata = 0x55D0,
kMkvPrimaryRChromaticityX = 0x55D1,
kMkvPrimaryRChromaticityY = 0x55D2,
kMkvPrimaryGChromaticityX = 0x55D3,
kMkvPrimaryGChromaticityY = 0x55D4,
kMkvPrimaryBChromaticityX = 0x55D5,
kMkvPrimaryBChromaticityY = 0x55D6,
kMkvWhitePointChromaticityX = 0x55D7,
kMkvWhitePointChromaticityY = 0x55D8,
kMkvLuminanceMax = 0x55D9,
kMkvLuminanceMin = 0x55DA,
// end mastering metadata
// end colour
// audio
kMkvAudio = 0xE1,
kMkvSamplingFrequency = 0xB5,
......@@ -150,6 +179,6 @@ enum MkvId {
kMkvTagString = 0x4487
};
} // end namespace mkvmuxer
} // namespace libwebm
#endif // WEBMIDS_HPP
#endif // COMMON_WEBMIDS_H_
This source diff could not be displayed because it is too large. You can view the blob instead.
......@@ -6,8 +6,8 @@
// 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
#ifndef MKVMUXER_MKVMUXERTYPES_H_
#define MKVMUXER_MKVMUXERTYPES_H_
// Copied from Chromium basictypes.h
// A macro to disallow the copy constructor and operator= functions
......@@ -16,15 +16,4 @@
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
#endif // MKVMUXER_MKVMUXERTYPES_HPP_
......@@ -5,79 +5,79 @@
// 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 MKVMUXER_MKVMUXERUTIL_H_
#define MKVMUXER_MKVMUXERUTIL_H_
#ifndef MKVMUXERUTIL_HPP
#define MKVMUXERUTIL_HPP
#include "mkvmuxer.hpp"
#include "mkvmuxertypes.hpp"
#include <stdint.h>
namespace mkvmuxer {
class Cluster;
class Frame;
class IMkvWriter;
const uint64 kEbmlUnknownValue = 0x01FFFFFFFFFFFFFFULL;
const int64 kMaxBlockTimecode = 0x07FFFLL;
const uint64_t kEbmlUnknownValue = 0x01FFFFFFFFFFFFFFULL;
const int64_t kMaxBlockTimecode = 0x07FFFLL;
// Writes out |value| in Big Endian order. Returns 0 on success.
int32 SerializeInt(IMkvWriter* writer, int64 value, int32 size);
int32_t SerializeInt(IMkvWriter* writer, int64_t value, int32_t size);
// Returns the size in bytes of the element.
int32 GetUIntSize(uint64 value);
int32 GetIntSize(int64 value);
int32 GetCodedUIntSize(uint64 value);
uint64 EbmlMasterElementSize(uint64 type, uint64 value);
uint64 EbmlElementSize(uint64 type, int64 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);
uint64 EbmlDateElementSize(uint64 type);
int32_t GetUIntSize(uint64_t value);
int32_t GetIntSize(int64_t value);
int32_t GetCodedUIntSize(uint64_t value);
uint64_t EbmlMasterElementSize(uint64_t type, uint64_t value);
uint64_t EbmlElementSize(uint64_t type, int64_t value);
uint64_t EbmlElementSize(uint64_t type, uint64_t value);
uint64_t EbmlElementSize(uint64_t type, float value);
uint64_t EbmlElementSize(uint64_t type, const char* value);
uint64_t EbmlElementSize(uint64_t type, const uint8_t* value, uint64_t size);
uint64_t EbmlDateElementSize(uint64_t type);
// 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);
int32_t WriteUInt(IMkvWriter* writer, uint64_t 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);
int32_t WriteUIntSize(IMkvWriter* writer, uint64_t value, int32_t size);
// Output an Mkv master element. Returns true if the element was written.
bool WriteEbmlMasterElement(IMkvWriter* writer, uint64 value, uint64 size);
bool WriteEbmlMasterElement(IMkvWriter* writer, uint64_t value, uint64_t size);
// Outputs an Mkv ID, calls |IMkvWriter::ElementStartNotify|, and passes the
// ID to |SerializeInt|. Returns 0 on success.
int32 WriteID(IMkvWriter* writer, uint64 type);
int32_t WriteID(IMkvWriter* writer, uint64_t 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, int64 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);
bool WriteEbmlDateElement(IMkvWriter* writer, uint64 type, int64 value);
bool WriteEbmlElement(IMkvWriter* writer, uint64_t type, uint64_t value);
bool WriteEbmlElement(IMkvWriter* writer, uint64_t type, int64_t value);
bool WriteEbmlElement(IMkvWriter* writer, uint64_t type, float value);
bool WriteEbmlElement(IMkvWriter* writer, uint64_t type, const char* value);
bool WriteEbmlElement(IMkvWriter* writer, uint64_t type, const uint8_t* value,
uint64_t size);
bool WriteEbmlDateElement(IMkvWriter* writer, uint64_t type, int64_t value);
// Output a Mkv Frame. It decides the correct element to write (Block vs
// SimpleBlock) based on the parameters of the Frame.
uint64 WriteFrame(IMkvWriter* writer, const Frame* const frame,
Cluster* cluster);
uint64_t WriteFrame(IMkvWriter* writer, const Frame* const frame,
Cluster* cluster);
// 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);
uint64_t WriteVoidElement(IMkvWriter* writer, uint64_t size);
// Returns the version number of the muxer in |major|, |minor|, |build|,
// and |revision|.
void GetVersion(int32* major, int32* minor, int32* build, int32* revision);
void GetVersion(int32_t* major, int32_t* minor, int32_t* build,
int32_t* 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);
uint64_t MakeUID(unsigned int* seed);
<