Index: source/libvpx/third_party/libmkv/WebMElement.c |
=================================================================== |
--- source/libvpx/third_party/libmkv/WebMElement.c (revision 278778) |
+++ source/libvpx/third_party/libmkv/WebMElement.c (working copy) |
@@ -1,217 +0,0 @@ |
-// 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 "EbmlBufferWriter.h" |
-#include "EbmlIDs.h" |
-#include "WebMElement.h" |
-#include <stdio.h> |
-#include "vpx/vpx_integer.h" |
- |
-#define kVorbisPrivateMaxSize 4000 |
- |
-void writeHeader(EbmlGlobal *glob) { |
- 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); |
-} |
- |
-void writeSimpleBlock(EbmlGlobal *glob, unsigned char trackNumber, short timeCode, |
- int isKeyframe, unsigned char lacingFlag, int discardable, |
- unsigned char *data, unsigned long dataLength) { |
- Ebml_WriteID(glob, SimpleBlock); |
- unsigned long blockLength = 4 + dataLength; |
- blockLength |= 0x10000000; // TODO check length < 0x0FFFFFFFF |
- Ebml_Serialize(glob, &blockLength, sizeof(blockLength), 4); |
- trackNumber |= 0x80; // TODO check track nubmer < 128 |
- Ebml_Write(glob, &trackNumber, 1); |
- // Ebml_WriteSigned16(glob, timeCode,2); //this is 3 bytes |
- Ebml_Serialize(glob, &timeCode, sizeof(timeCode), 2); |
- unsigned char flags = 0x00 | (isKeyframe ? 0x80 : 0x00) | (lacingFlag << 1) | discardable; |
- Ebml_Write(glob, &flags, 1); |
- Ebml_Write(glob, data, dataLength); |
-} |
- |
-static uint64_t generateTrackID(unsigned int trackNumber) { |
- uint64_t t = time(NULL) * trackNumber; |
- uint64_t r = rand(); |
- r = r << 32; |
- r += rand(); |
- uint64_t rval = t ^ r; |
- return rval; |
-} |
- |
-void writeVideoTrack(EbmlGlobal *glob, unsigned int trackNumber, |
- int flagLacing, const char *codecId, |
- unsigned int pixelWidth, unsigned int pixelHeight, |
- double frameRate) { |
- EbmlLoc start; |
- Ebml_StartSubElement(glob, &start, TrackEntry); |
- Ebml_SerializeUnsigned(glob, TrackNumber, trackNumber); |
- uint64_t trackID = generateTrackID(trackNumber); |
- Ebml_SerializeUnsigned(glob, TrackUID, trackID); |
- Ebml_SerializeString(glob, CodecName, "VP8"); // TODO shouldn't be fixed |
- |
- Ebml_SerializeUnsigned(glob, TrackType, 1); // video is always 1 |
- Ebml_SerializeString(glob, CodecID, codecId); |
- { |
- 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 |
-} |
-void writeAudioTrack(EbmlGlobal *glob, unsigned int trackNumber, |
- int flagLacing, const char *codecId, |
- double samplingFrequency, unsigned int channels, |
- unsigned char *private, unsigned long privateSize) { |
- EbmlLoc start; |
- Ebml_StartSubElement(glob, &start, TrackEntry); |
- Ebml_SerializeUnsigned(glob, TrackNumber, trackNumber); |
- uint64_t trackID = generateTrackID(trackNumber); |
- Ebml_SerializeUnsigned(glob, TrackUID, trackID); |
- Ebml_SerializeUnsigned(glob, TrackType, 2); // audio is always 2 |
- // I am using defaults for thesed required fields |
- /* Ebml_SerializeUnsigned(glob, FlagEnabled, 1); |
- Ebml_SerializeUnsigned(glob, FlagDefault, 1); |
- Ebml_SerializeUnsigned(glob, FlagForced, 1); |
- Ebml_SerializeUnsigned(glob, FlagLacing, flagLacing);*/ |
- Ebml_SerializeString(glob, CodecID, codecId); |
- Ebml_SerializeData(glob, CodecPrivate, private, privateSize); |
- |
- Ebml_SerializeString(glob, CodecName, "VORBIS"); // fixed for now |
- { |
- EbmlLoc AudioStart; |
- Ebml_StartSubElement(glob, &AudioStart, Audio); |
- Ebml_SerializeFloat(glob, SamplingFrequency, samplingFrequency); |
- Ebml_SerializeUnsigned(glob, Channels, channels); |
- Ebml_EndSubElement(glob, &AudioStart); |
- } |
- Ebml_EndSubElement(glob, &start); |
-} |
-void writeSegmentInformation(EbmlGlobal *ebml, EbmlLoc *startInfo, unsigned long timeCodeScale, double duration) { |
- Ebml_StartSubElement(ebml, startInfo, Info); |
- Ebml_SerializeUnsigned(ebml, TimecodeScale, timeCodeScale); |
- Ebml_SerializeFloat(ebml, Segment_Duration, duration * 1000.0); // Currently fixed to using milliseconds |
- Ebml_SerializeString(ebml, 0x4D80, "QTmuxingAppLibWebM-0.0.1"); |
- Ebml_SerializeString(ebml, 0x5741, "QTwritingAppLibWebM-0.0.1"); |
- Ebml_EndSubElement(ebml, startInfo); |
-} |
- |
-/* |
-void Mkv_InitializeSegment(Ebml& ebml_out, EbmlLoc& ebmlLoc) |
-{ |
- Ebml_StartSubElement(ebml_out, ebmlLoc, 0x18538067); |
-} |
- |
-void Mkv_InitializeSeek(Ebml& ebml_out, EbmlLoc& ebmlLoc) |
-{ |
- Ebml_StartSubElement(ebml_out, ebmlLoc, 0x114d9b74); |
-} |
-void Mkv_WriteSeekInformation(Ebml& ebml_out, SeekStruct& seekInformation) |
-{ |
- EbmlLoc ebmlLoc; |
- Ebml_StartSubElement(ebml_out, ebmlLoc, 0x4dbb); |
- Ebml_SerializeString(ebml_out, 0x53ab, seekInformation.SeekID); |
- Ebml_SerializeUnsigned(ebml_out, 0x53ac, seekInformation.SeekPosition); |
- Ebml_EndSubElement(ebml_out, ebmlLoc); |
-} |
- |
-void Mkv_WriteSegmentInformation(Ebml& ebml_out, SegmentInformationStruct& segmentInformation) |
-{ |
- Ebml_SerializeUnsigned(ebml_out, 0x73a4, segmentInformation.segmentUID); |
- if (segmentInformation.filename != 0) |
- Ebml_SerializeString(ebml_out, 0x7384, segmentInformation.filename); |
- Ebml_SerializeUnsigned(ebml_out, 0x2AD7B1, segmentInformation.TimecodeScale); |
- Ebml_SerializeUnsigned(ebml_out, 0x4489, segmentInformation.Duration); |
- // TODO date |
- Ebml_SerializeWString(ebml_out, 0x4D80, L"MKVMUX"); |
- Ebml_SerializeWString(ebml_out, 0x5741, segmentInformation.WritingApp); |
-} |
- |
-void Mkv_InitializeTrack(Ebml& ebml_out, EbmlLoc& ebmlLoc) |
-{ |
- Ebml_StartSubElement(ebml_out, ebmlLoc, 0x1654AE6B); |
-} |
- |
-static void Mkv_WriteGenericTrackData(Ebml& ebml_out, TrackStruct& track) |
-{ |
- Ebml_SerializeUnsigned(ebml_out, 0xD7, track.TrackNumber); |
- Ebml_SerializeUnsigned(ebml_out, 0x73C5, track.TrackUID); |
- Ebml_SerializeUnsigned(ebml_out, 0x83, track.TrackType); |
- Ebml_SerializeUnsigned(ebml_out, 0xB9, track.FlagEnabled ? 1 :0); |
- Ebml_SerializeUnsigned(ebml_out, 0x88, track.FlagDefault ? 1 :0); |
- Ebml_SerializeUnsigned(ebml_out, 0x55AA, track.FlagForced ? 1 :0); |
- if (track.Language != 0) |
- Ebml_SerializeString(ebml_out, 0x22B59C, track.Language); |
- if (track.CodecID != 0) |
- Ebml_SerializeString(ebml_out, 0x86, track.CodecID); |
- if (track.CodecPrivate != 0) |
- Ebml_SerializeData(ebml_out, 0x63A2, track.CodecPrivate, track.CodecPrivateLength); |
- if (track.CodecName != 0) |
- Ebml_SerializeWString(ebml_out, 0x258688, track.CodecName); |
-} |
- |
-void Mkv_WriteVideoTrack(Ebml& ebml_out, TrackStruct & track, VideoTrackStruct& video) |
-{ |
- EbmlLoc trackHeadLoc, videoHeadLoc; |
- Ebml_StartSubElement(ebml_out, trackHeadLoc, 0xAE); // start Track |
- Mkv_WriteGenericTrackData(ebml_out, track); |
- Ebml_StartSubElement(ebml_out, videoHeadLoc, 0xE0); // start Video |
- Ebml_SerializeUnsigned(ebml_out, 0x9A, video.FlagInterlaced ? 1 :0); |
- Ebml_SerializeUnsigned(ebml_out, 0xB0, video.PixelWidth); |
- Ebml_SerializeUnsigned(ebml_out, 0xBA, video.PixelHeight); |
- Ebml_SerializeUnsigned(ebml_out, 0x54B0, video.PixelDisplayWidth); |
- Ebml_SerializeUnsigned(ebml_out, 0x54BA, video.PixelDisplayHeight); |
- Ebml_SerializeUnsigned(ebml_out, 0x54B2, video.displayUnit); |
- Ebml_SerializeFloat(ebml_out, 0x2383E3, video.FrameRate); |
- Ebml_EndSubElement(ebml_out, videoHeadLoc); |
- Ebml_EndSubElement(ebml_out, trackHeadLoc); |
- |
-} |
- |
-void Mkv_WriteAudioTrack(Ebml& ebml_out, TrackStruct & track, AudioTrackStruct& video) |
-{ |
- EbmlLoc trackHeadLoc, audioHeadLoc; |
- Ebml_StartSubElement(ebml_out, trackHeadLoc, 0xAE); |
- Mkv_WriteGenericTrackData(ebml_out, track); |
- Ebml_StartSubElement(ebml_out, audioHeadLoc, 0xE0); // start Audio |
- Ebml_SerializeFloat(ebml_out, 0xB5, video.SamplingFrequency); |
- Ebml_SerializeUnsigned(ebml_out, 0x9F, video.Channels); |
- Ebml_SerializeUnsigned(ebml_out, 0x6264, video.BitDepth); |
- Ebml_EndSubElement(ebml_out, audioHeadLoc); // end audio |
- Ebml_EndSubElement(ebml_out, trackHeadLoc); |
-} |
- |
-void Mkv_WriteEbmlClusterHead(Ebml& ebml_out, EbmlLoc& ebmlLoc, ClusterHeadStruct & clusterHead) |
-{ |
- Ebml_StartSubElement(ebml_out, ebmlLoc, 0x1F43B675); |
- Ebml_SerializeUnsigned(ebml_out, 0x6264, clusterHead.TimeCode); |
-} |
- |
-void Mkv_WriteSimpleBlockHead(Ebml& ebml_out, EbmlLoc& ebmlLoc, SimpleBlockStruct& block) |
-{ |
- Ebml_StartSubElement(ebml_out, ebmlLoc, 0xA3); |
- Ebml_Write1UInt(ebml_out, block.TrackNumber); |
- Ebml_WriteSigned16(ebml_out,block.TimeCode); |
- unsigned char flags = 0x00 | (block.iskey ? 0x80:0x00) | (block.lacing << 1) | block.discardable; |
- Ebml_Write1UInt(ebml_out, flags); // TODO this may be the wrong function |
- Ebml_Serialize(ebml_out, block.data, block.dataLength); |
- Ebml_EndSubElement(ebml_out,ebmlLoc); |
-} |
-*/ |