Add support for writing VP8 video files.

This commit is contained in:
Torsten Paul 2016-09-28 18:48:10 +02:00
parent 321964e4fa
commit cf82958231
4 changed files with 762 additions and 2 deletions

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@ -341,6 +341,7 @@ HEADERS += src/version_check.h \
src/svg.h \
src/video.h \
src/video_png.h \
src/EbmlWriter.h \
\
src/lodepng.h \
src/OffscreenView.h \
@ -418,6 +419,7 @@ SOURCES += \
src/stl-utils.cc \
src/boost-utils.cc \
src/video_png.cc \
src/EbmlWriter.cpp \
src/PlatformUtils.cc \
src/LibraryInfo.cc \
\

459
src/EbmlWriter.cpp Normal file
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@ -0,0 +1,459 @@
// Copyright (c) 2010 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 <limits.h>
#include "EbmlWriter.h"
#if defined(_MSC_VER)
/* MSVS doesn't define off_t, and uses _f{seek,tell}i64 */
#define fseeko _fseeki64
#define ftello _ftelli64
#endif
#if defined(_MSC_VER)
#define LITERALU64(n) n
#else
#define LITERALU64(n) n##LLU
#endif
void Ebml_Write(EbmlGlobal *glob, const void *buffer_in, unsigned long len)
{
fwrite(buffer_in, 1, len, glob->stream);
}
void Ebml_Serialize(EbmlGlobal *glob, const void *buffer_in, unsigned long len)
{
const unsigned char *q = (const unsigned char *)buffer_in + len - 1;
for(; len; len--)
Ebml_Write(glob, q--, 1);
}
/* Need a fixed size serializer for the track ID. libmkv provdes a 64 bit
* one, but not a 32 bit one.
*/
void Ebml_SerializeUnsigned32(EbmlGlobal *glob, unsigned long class_id, uint64_t ui)
{
unsigned char sizeSerialized = 4 | 0x80;
Ebml_WriteID(glob, class_id);
Ebml_Serialize(glob, &sizeSerialized, 1);
Ebml_Serialize(glob, &ui, 4);
}
void
Ebml_StartSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc,
unsigned long class_id)
{
//todo this is always taking 8 bytes, this may need later optimization
//this is a key that says lenght unknown
unsigned long long unknownLen = LITERALU64(0x01FFFFFFFFFFFFFF);
Ebml_WriteID(glob, class_id);
*ebmlLoc = ftello(glob->stream);
Ebml_Serialize(glob, &unknownLen, 8);
}
void
Ebml_EndSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc)
{
off_t pos;
uint64_t size;
/* Save the current stream pointer */
pos = ftello(glob->stream);
/* Calculate the size of this element */
size = pos - *ebmlLoc - 8;
size |= LITERALU64(0x0100000000000000);
/* Seek back to the beginning of the element and write the new size */
fseeko(glob->stream, *ebmlLoc, SEEK_SET);
Ebml_Serialize(glob, &size, 8);
/* Reset the stream pointer */
fseeko(glob->stream, pos, SEEK_SET);
}
void Ebml_WriteLen(EbmlGlobal *glob, long long val)
{
//TODO check and make sure we are not > than 0x0100000000000000LLU
unsigned char size = 8; //size in bytes to output
unsigned long long minVal = LITERALU64(0x00000000000000ff); //mask to compare for byte size
for (size = 1; size < 8; size ++)
{
if (val < minVal)
break;
minVal = (minVal << 7);
}
val |= (LITERALU64(0x000000000000080) << ((size - 1) * 7));
Ebml_Serialize(glob, (void *) &val, size);
}
void Ebml_WriteString(EbmlGlobal *glob, const char *str)
{
const size_t size_ = strlen(str);
const unsigned long long size = size_;
Ebml_WriteLen(glob, size);
//TODO: it's not clear from the spec whether the nul terminator
//should be serialized too. For now we omit the null terminator.
Ebml_Write(glob, str, size);
}
void Ebml_WriteUTF8(EbmlGlobal *glob, const wchar_t *wstr)
{
const size_t strlen = wcslen(wstr);
//TODO: it's not clear from the spec whether the nul terminator
//should be serialized too. For now we include it.
const unsigned long long size = strlen;
Ebml_WriteLen(glob, size);
Ebml_Write(glob, wstr, size);
}
void Ebml_WriteID(EbmlGlobal *glob, unsigned long class_id)
{
if (class_id >= 0x01000000)
Ebml_Serialize(glob, (void *)&class_id, 4);
else if (class_id >= 0x00010000)
Ebml_Serialize(glob, (void *)&class_id, 3);
else if (class_id >= 0x00000100)
Ebml_Serialize(glob, (void *)&class_id, 2);
else
Ebml_Serialize(glob, (void *)&class_id, 1);
}
void Ebml_SerializeUnsigned64(EbmlGlobal *glob, unsigned long class_id, uint64_t ui)
{
unsigned char sizeSerialized = 8 | 0x80;
Ebml_WriteID(glob, class_id);
Ebml_Serialize(glob, &sizeSerialized, 1);
Ebml_Serialize(glob, &ui, 8);
}
void Ebml_SerializeUnsigned(EbmlGlobal *glob, unsigned long class_id, unsigned long ui)
{
unsigned char size = 8; //size in bytes to output
unsigned char sizeSerialized = 0;
unsigned long minVal;
Ebml_WriteID(glob, class_id);
minVal = 0x7fLU; //mask to compare for byte size
for (size = 1; size < 4; size ++)
{
if (ui < minVal)
{
break;
}
minVal <<= 7;
}
sizeSerialized = 0x80 | size;
Ebml_Serialize(glob, &sizeSerialized, 1);
Ebml_Serialize(glob, &ui, size);
}
//TODO: perhaps this is a poor name for this id serializer helper function
void Ebml_SerializeBinary(EbmlGlobal *glob, unsigned long class_id, unsigned long bin)
{
int size;
for (size=4; size > 1; size--)
{
if (bin & 0x000000ff << ((size-1) * 8))
break;
}
Ebml_WriteID(glob, class_id);
Ebml_WriteLen(glob, size);
Ebml_WriteID(glob, bin);
}
void Ebml_SerializeFloat(EbmlGlobal *glob, unsigned long class_id, double d)
{
unsigned char len = 0x88;
Ebml_WriteID(glob, class_id);
Ebml_Serialize(glob, &len, 1);
Ebml_Serialize(glob, &d, 8);
}
void Ebml_WriteSigned16(EbmlGlobal *glob, short val)
{
signed long out = ((val & 0x003FFFFF) | 0x00200000) << 8;
Ebml_Serialize(glob, &out, 3);
}
void Ebml_SerializeString(EbmlGlobal *glob, unsigned long class_id, const char *s)
{
Ebml_WriteID(glob, class_id);
Ebml_WriteString(glob, s);
}
void Ebml_SerializeUTF8(EbmlGlobal *glob, unsigned long class_id, wchar_t *s)
{
Ebml_WriteID(glob, class_id);
Ebml_WriteUTF8(glob, s);
}
void Ebml_SerializeData(EbmlGlobal *glob, unsigned long class_id, unsigned char *data, unsigned long data_length)
{
unsigned char size = 4;
Ebml_WriteID(glob, class_id);
Ebml_WriteLen(glob, data_length);
Ebml_Write(glob, data, data_length);
}
void Ebml_WriteVoid(EbmlGlobal *glob, unsigned long vSize)
{
unsigned char tmp = 0;
unsigned long i = 0;
Ebml_WriteID(glob, 0xEC);
Ebml_WriteLen(glob, vSize);
for (i = 0; i < vSize; i++)
{
Ebml_Write(glob, &tmp, 1);
}
}
void Ebml_WriteWebMSeekElement(EbmlGlobal *ebml, unsigned long id, off_t pos)
{
uint64_t offset = pos - ebml->position_reference;
EbmlLoc start;
Ebml_StartSubElement(ebml, &start, Seek);
Ebml_SerializeBinary(ebml, SeekID, id);
Ebml_SerializeUnsigned64(ebml, SeekPosition, offset);
Ebml_EndSubElement(ebml, &start);
}
void Ebml_WriteWebMSeekInfo(EbmlGlobal *ebml)
{
off_t pos;
/* Save the current stream pointer */
pos = ftello(ebml->stream);
if(ebml->seek_info_pos)
fseeko(ebml->stream, ebml->seek_info_pos, SEEK_SET);
else
ebml->seek_info_pos = pos;
{
EbmlLoc start;
Ebml_StartSubElement(ebml, &start, SeekHead);
Ebml_WriteWebMSeekElement(ebml, Tracks, ebml->track_pos);
Ebml_WriteWebMSeekElement(ebml, Cues, ebml->cue_pos);
Ebml_WriteWebMSeekElement(ebml, Info, ebml->segment_info_pos);
Ebml_EndSubElement(ebml, &start);
}
{
//segment info
EbmlLoc startInfo;
uint64_t frame_time;
frame_time = (uint64_t)1000 * ebml->framerate.den
/ ebml->framerate.num;
ebml->segment_info_pos = ftello(ebml->stream);
Ebml_StartSubElement(ebml, &startInfo, Info);
Ebml_SerializeUnsigned(ebml, TimecodeScale, 1000000);
Ebml_SerializeFloat(ebml, Segment_Duration,
ebml->last_pts_ms + frame_time);
Ebml_SerializeString(ebml, 0x4D80, "vpxenc");
Ebml_SerializeString(ebml, 0x5741, "vpxenc");
Ebml_EndSubElement(ebml, &startInfo);
}
}
void Ebml_WriteWebMFileHeader(EbmlGlobal *glob,
const vpx_codec_enc_cfg_t *cfg,
const struct vpx_rational *fps)
{
{
EbmlLoc start;
Ebml_StartSubElement(glob, &start, EBML);
Ebml_SerializeUnsigned(glob, EBMLVersion, 1);
Ebml_SerializeUnsigned(glob, EBMLReadVersion, 1); //EBML Read Version
Ebml_SerializeUnsigned(glob, EBMLMaxIDLength, 4); //EBML Max ID Length
Ebml_SerializeUnsigned(glob, EBMLMaxSizeLength, 8); //EBML Max Size Length
Ebml_SerializeString(glob, DocType, "webm"); //Doc Type
Ebml_SerializeUnsigned(glob, DocTypeVersion, 2); //Doc Type Version
Ebml_SerializeUnsigned(glob, DocTypeReadVersion, 2); //Doc Type Read Version
Ebml_EndSubElement(glob, &start);
}
{
Ebml_StartSubElement(glob, &glob->startSegment, Segment); //segment
glob->position_reference = ftello(glob->stream);
glob->framerate = *fps;
Ebml_WriteWebMSeekInfo(glob);
{
EbmlLoc trackStart;
glob->track_pos = ftello(glob->stream);
Ebml_StartSubElement(glob, &trackStart, Tracks);
{
unsigned int trackNumber = 1;
uint64_t trackID = 0;
EbmlLoc start;
Ebml_StartSubElement(glob, &start, TrackEntry);
Ebml_SerializeUnsigned(glob, TrackNumber, trackNumber);
glob->track_id_pos = ftello(glob->stream);
Ebml_SerializeUnsigned32(glob, TrackUID, trackID);
Ebml_SerializeUnsigned(glob, TrackType, 1); //video is always 1
Ebml_SerializeString(glob, CodecID, "V_VP8");
{
unsigned int pixelWidth = cfg->g_w;
unsigned int pixelHeight = cfg->g_h;
float frameRate = (float)fps->num/(float)fps->den;
EbmlLoc videoStart;
Ebml_StartSubElement(glob, &videoStart, Video);
Ebml_SerializeUnsigned(glob, PixelWidth, pixelWidth);
Ebml_SerializeUnsigned(glob, PixelHeight, pixelHeight);
Ebml_SerializeFloat(glob, FrameRate, frameRate);
Ebml_EndSubElement(glob, &videoStart); //Video
}
Ebml_EndSubElement(glob, &start); //Track Entry
}
Ebml_EndSubElement(glob, &trackStart);
}
// segment element is open
}
}
void Ebml_WriteWebMBlock(EbmlGlobal *glob,
const vpx_codec_enc_cfg_t *cfg,
const vpx_codec_cx_pkt_t *pkt)
{
unsigned long block_length;
unsigned char track_number;
unsigned short block_timecode = 0;
unsigned char flags;
int64_t pts_ms;
int start_cluster = 0, is_keyframe;
/* Calculate the PTS of this frame in milliseconds */
pts_ms = pkt->data.frame.pts * 1000
* (uint64_t)cfg->g_timebase.num / (uint64_t)cfg->g_timebase.den;
if(pts_ms <= glob->last_pts_ms)
pts_ms = glob->last_pts_ms + 1;
glob->last_pts_ms = pts_ms;
/* Calculate the relative time of this block */
if(pts_ms - glob->cluster_timecode > SHRT_MAX)
start_cluster = 1;
else
block_timecode = pts_ms - glob->cluster_timecode;
is_keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY);
if(start_cluster || is_keyframe)
{
if(glob->cluster_open)
Ebml_EndSubElement(glob, &glob->startCluster);
/* Open the new cluster */
block_timecode = 0;
glob->cluster_open = 1;
glob->cluster_timecode = pts_ms;
glob->cluster_pos = ftello(glob->stream);
Ebml_StartSubElement(glob, &glob->startCluster, Cluster); //cluster
Ebml_SerializeUnsigned(glob, Timecode, glob->cluster_timecode);
/* Save a cue point if this is a keyframe. */
if(is_keyframe)
{
struct cue_entry *cue;
glob->cue_list = (cue_entry*)realloc(glob->cue_list, (glob->cues+1) * sizeof(cue_entry));
cue = &glob->cue_list[glob->cues];
cue->time = glob->cluster_timecode;
cue->loc = glob->cluster_pos;
glob->cues++;
}
}
/* Write the Simple Block */
Ebml_WriteID(glob, SimpleBlock);
block_length = pkt->data.frame.sz + 4;
block_length |= 0x10000000;
Ebml_Serialize(glob, &block_length, 4);
track_number = 1;
track_number |= 0x80;
Ebml_Write(glob, &track_number, 1);
Ebml_Serialize(glob, &block_timecode, 2);
flags = 0;
if(is_keyframe)
flags |= 0x80;
if(pkt->data.frame.flags & VPX_FRAME_IS_INVISIBLE)
flags |= 0x08;
Ebml_Write(glob, &flags, 1);
Ebml_Write(glob, pkt->data.frame.buf, pkt->data.frame.sz);
}
void Ebml_WriteWebMFileFooter(EbmlGlobal *glob, long hash)
{
if(glob->cluster_open)
Ebml_EndSubElement(glob, &glob->startCluster);
{
EbmlLoc start;
int i;
glob->cue_pos = ftello(glob->stream);
Ebml_StartSubElement(glob, &start, Cues);
for(i=0; i<glob->cues; i++)
{
struct cue_entry *cue = &glob->cue_list[i];
EbmlLoc start;
Ebml_StartSubElement(glob, &start, CuePoint);
{
EbmlLoc start;
Ebml_SerializeUnsigned(glob, CueTime, cue->time);
Ebml_StartSubElement(glob, &start, CueTrackPositions);
Ebml_SerializeUnsigned(glob, CueTrack, 1);
Ebml_SerializeUnsigned64(glob, CueClusterPosition,
cue->loc - glob->position_reference);
//Ebml_SerializeUnsigned(glob, CueBlockNumber, cue->blockNumber);
Ebml_EndSubElement(glob, &start);
}
Ebml_EndSubElement(glob, &start);
}
Ebml_EndSubElement(glob, &start);
}
Ebml_EndSubElement(glob, &glob->startSegment);
/* Patch up the seek info block */
Ebml_WriteWebMSeekInfo(glob);
/* Patch up the track id */
fseeko(glob->stream, glob->track_id_pos, SEEK_SET);
Ebml_SerializeUnsigned32(glob, TrackUID, glob->debug ? 0xDEADBEEF : hash);
fseeko(glob->stream, 0, SEEK_END);
}

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src/EbmlWriter.h Normal file
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@ -0,0 +1,299 @@
// Copyright (c) 2010 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 EBMLWRITER_HPP
#define EBMLWRITER_HPP
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <vpx/vpx_encoder.h>
typedef off_t EbmlLoc;
enum mkv
{
EBML = 0x1A45DFA3,
EBMLVersion = 0x4286,
EBMLReadVersion = 0x42F7,
EBMLMaxIDLength = 0x42F2,
EBMLMaxSizeLength = 0x42F3,
DocType = 0x4282,
DocTypeVersion = 0x4287,
DocTypeReadVersion = 0x4285,
// CRC_32 = 0xBF,
Void = 0xEC,
SignatureSlot = 0x1B538667,
SignatureAlgo = 0x7E8A,
SignatureHash = 0x7E9A,
SignaturePublicKey = 0x7EA5,
Signature = 0x7EB5,
SignatureElements = 0x7E5B,
SignatureElementList = 0x7E7B,
SignedElement = 0x6532,
//segment
Segment = 0x18538067,
//Meta Seek Information
SeekHead = 0x114D9B74,
Seek = 0x4DBB,
SeekID = 0x53AB,
SeekPosition = 0x53AC,
//Segment Information
Info = 0x1549A966,
// SegmentUID = 0x73A4,
// SegmentFilename = 0x7384,
// PrevUID = 0x3CB923,
// PrevFilename = 0x3C83AB,
// NextUID = 0x3EB923,
// NextFilename = 0x3E83BB,
// SegmentFamily = 0x4444,
// ChapterTranslate = 0x6924,
// ChapterTranslateEditionUID = 0x69FC,
// ChapterTranslateCodec = 0x69BF,
// ChapterTranslateID = 0x69A5,
TimecodeScale = 0x2AD7B1,
Segment_Duration = 0x4489,
DateUTC = 0x4461,
// Title = 0x7BA9,
MuxingApp = 0x4D80,
WritingApp = 0x5741,
//Cluster
Cluster = 0x1F43B675,
Timecode = 0xE7,
// SilentTracks = 0x5854,
// SilentTrackNumber = 0x58D7,
// Position = 0xA7,
PrevSize = 0xAB,
BlockGroup = 0xA0,
Block = 0xA1,
// BlockVirtual = 0xA2,
// BlockAdditions = 0x75A1,
// BlockMore = 0xA6,
// BlockAddID = 0xEE,
// BlockAdditional = 0xA5,
BlockDuration = 0x9B,
// ReferencePriority = 0xFA,
ReferenceBlock = 0xFB,
// ReferenceVirtual = 0xFD,
// CodecState = 0xA4,
// Slices = 0x8E,
// TimeSlice = 0xE8,
LaceNumber = 0xCC,
// FrameNumber = 0xCD,
// BlockAdditionID = 0xCB,
// MkvDelay = 0xCE,
// Cluster_Duration = 0xCF,
SimpleBlock = 0xA3,
// EncryptedBlock = 0xAF,
//Track
Tracks = 0x1654AE6B,
TrackEntry = 0xAE,
TrackNumber = 0xD7,
TrackUID = 0x73C5,
TrackType = 0x83,
FlagEnabled = 0xB9,
FlagDefault = 0x88,
FlagForced = 0x55AA,
FlagLacing = 0x9C,
// MinCache = 0x6DE7,
// MaxCache = 0x6DF8,
DefaultDuration = 0x23E383,
// TrackTimecodeScale = 0x23314F,
// TrackOffset = 0x537F,
// MaxBlockAdditionID = 0x55EE,
Name = 0x536E,
Language = 0x22B59C,
CodecID = 0x86,
CodecPrivate = 0x63A2,
CodecName = 0x258688,
// AttachmentLink = 0x7446,
// CodecSettings = 0x3A9697,
// CodecInfoURL = 0x3B4040,
// CodecDownloadURL = 0x26B240,
// CodecDecodeAll = 0xAA,
// TrackOverlay = 0x6FAB,
// TrackTranslate = 0x6624,
// TrackTranslateEditionUID = 0x66FC,
// TrackTranslateCodec = 0x66BF,
// TrackTranslateTrackID = 0x66A5,
//video
Video = 0xE0,
FlagInterlaced = 0x9A,
// StereoMode = 0x53B8,
PixelWidth = 0xB0,
PixelHeight = 0xBA,
PixelCropBottom = 0x54AA,
PixelCropTop = 0x54BB,
PixelCropLeft = 0x54CC,
PixelCropRight = 0x54DD,
DisplayWidth = 0x54B0,
DisplayHeight = 0x54BA,
DisplayUnit = 0x54B2,
AspectRatioType = 0x54B3,
// ColourSpace = 0x2EB524,
// GammaValue = 0x2FB523,
FrameRate = 0x2383E3,
//end video
//audio
Audio = 0xE1,
SamplingFrequency = 0xB5,
OutputSamplingFrequency = 0x78B5,
Channels = 0x9F,
// ChannelPositions = 0x7D7B,
BitDepth = 0x6264,
//end audio
//content encoding
// ContentEncodings = 0x6d80,
// ContentEncoding = 0x6240,
// ContentEncodingOrder = 0x5031,
// ContentEncodingScope = 0x5032,
// ContentEncodingType = 0x5033,
// ContentCompression = 0x5034,
// ContentCompAlgo = 0x4254,
// ContentCompSettings = 0x4255,
// ContentEncryption = 0x5035,
// ContentEncAlgo = 0x47e1,
// ContentEncKeyID = 0x47e2,
// ContentSignature = 0x47e3,
// ContentSigKeyID = 0x47e4,
// ContentSigAlgo = 0x47e5,
// ContentSigHashAlgo = 0x47e6,
//end content encoding
//Cueing Data
Cues = 0x1C53BB6B,
CuePoint = 0xBB,
CueTime = 0xB3,
CueTrackPositions = 0xB7,
CueTrack = 0xF7,
CueClusterPosition = 0xF1,
CueBlockNumber = 0x5378,
// CueCodecState = 0xEA,
// CueReference = 0xDB,
// CueRefTime = 0x96,
// CueRefCluster = 0x97,
// CueRefNumber = 0x535F,
// CueRefCodecState = 0xEB,
//Attachment
// Attachments = 0x1941A469,
// AttachedFile = 0x61A7,
// FileDescription = 0x467E,
// FileName = 0x466E,
// FileMimeType = 0x4660,
// FileData = 0x465C,
// FileUID = 0x46AE,
// FileReferral = 0x4675,
//Chapters
// Chapters = 0x1043A770,
// EditionEntry = 0x45B9,
// EditionUID = 0x45BC,
// EditionFlagHidden = 0x45BD,
// EditionFlagDefault = 0x45DB,
// EditionFlagOrdered = 0x45DD,
// ChapterAtom = 0xB6,
// ChapterUID = 0x73C4,
// ChapterTimeStart = 0x91,
// ChapterTimeEnd = 0x92,
// ChapterFlagHidden = 0x98,
// ChapterFlagEnabled = 0x4598,
// ChapterSegmentUID = 0x6E67,
// ChapterSegmentEditionUID = 0x6EBC,
// ChapterPhysicalEquiv = 0x63C3,
// ChapterTrack = 0x8F,
// ChapterTrackNumber = 0x89,
// ChapterDisplay = 0x80,
// ChapString = 0x85,
// ChapLanguage = 0x437C,
// ChapCountry = 0x437E,
// ChapProcess = 0x6944,
// ChapProcessCodecID = 0x6955,
// ChapProcessPrivate = 0x450D,
// ChapProcessCommand = 0x6911,
// ChapProcessTime = 0x6922,
// ChapProcessData = 0x6933,
//Tagging
// Tags = 0x1254C367,
// Tag = 0x7373,
// Targets = 0x63C0,
// TargetTypeValue = 0x68CA,
// TargetType = 0x63CA,
// Tagging_TrackUID = 0x63C5,
// Tagging_EditionUID = 0x63C9,
// Tagging_ChapterUID = 0x63C4,
// AttachmentUID = 0x63C6,
// SimpleTag = 0x67C8,
// TagName = 0x45A3,
// TagLanguage = 0x447A,
// TagDefault = 0x4484,
// TagString = 0x4487,
// TagBinary = 0x4485,
};
struct cue_entry
{
unsigned int time;
uint64_t loc;
};
struct EbmlGlobal
{
int debug;
FILE *stream;
int64_t last_pts_ms;
vpx_rational_t framerate;
off_t position_reference;
off_t seek_info_pos;
off_t segment_info_pos;
off_t track_pos;
off_t cue_pos;
off_t cluster_pos;
off_t track_id_pos;
EbmlLoc startSegment;
EbmlLoc startCluster;
uint32_t cluster_timecode;
int cluster_open;
struct cue_entry *cue_list;
unsigned int cues;
};
void Ebml_Serialize(EbmlGlobal *glob, const void *, unsigned long);
void Ebml_SerializeUnsigned32(EbmlGlobal *glob, unsigned long class_id, uint64_t ui);
void Ebml_Write(EbmlGlobal *glob, const void *, unsigned long);
void Ebml_StartSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc, unsigned long class_id);
void Ebml_EndSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc);
void Ebml_WriteLen(EbmlGlobal *glob, long long val);
void Ebml_WriteString(EbmlGlobal *glob, const char *str);
void Ebml_WriteUTF8(EbmlGlobal *glob, const wchar_t *wstr);
void Ebml_WriteID(EbmlGlobal *glob, unsigned long class_id);
void Ebml_SerializeUnsigned64(EbmlGlobal *glob, unsigned long class_id, uint64_t ui);
void Ebml_SerializeUnsigned(EbmlGlobal *glob, unsigned long class_id, unsigned long ui);
void Ebml_SerializeBinary(EbmlGlobal *glob, unsigned long class_id, unsigned long ui);
void Ebml_SerializeFloat(EbmlGlobal *glob, unsigned long class_id, double d);
void Ebml_WriteSigned16(EbmlGlobal *glob, short val);
void Ebml_SerializeString(EbmlGlobal *glob, unsigned long class_id, const char *s);
void Ebml_SerializeUTF8(EbmlGlobal *glob, unsigned long class_id, wchar_t *s);
void Ebml_SerializeData(EbmlGlobal *glob, unsigned long class_id, unsigned char *data, unsigned long data_length);
void Ebml_WriteVoid(EbmlGlobal *glob, unsigned long vSize);
void Ebml_WriteWebMSeekElement(EbmlGlobal *ebml, unsigned long id, off_t pos);
void Ebml_WriteWebMSeekInfo(EbmlGlobal *ebml);
void Ebml_WriteWebMFileHeader(EbmlGlobal *glob, const vpx_codec_enc_cfg_t *cfg, const struct vpx_rational *fps);
void Ebml_WriteWebMBlock(EbmlGlobal *glob, const vpx_codec_enc_cfg_t *cfg, const vpx_codec_cx_pkt_t *pkt);
void Ebml_WriteWebMFileFooter(EbmlGlobal *glob, long hash);
#endif

View file

@ -38,8 +38,8 @@ isEmpty(VPX_LIBPATH) {
LIBS += $$VPX_LIBS
DEFINES += ENABLE_VIDEO_VPX
# HEADERS += src/video_vpx.h
# SOURCES += src/video_vpx.cc
HEADERS += src/video_vpx.h
SOURCES += src/video_vpx.cc
}
}