diff options
Diffstat (limited to 'source/libvpx/libmkv/WebMElement.c')
-rw-r--r-- | source/libvpx/libmkv/WebMElement.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/source/libvpx/libmkv/WebMElement.c b/source/libvpx/libmkv/WebMElement.c deleted file mode 100644 index 2f79a3c..0000000 --- a/source/libvpx/libmkv/WebMElement.c +++ /dev/null @@ -1,214 +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> - -#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 generateTrackID(unsigned int trackNumber) { - UInt64 t = time(NULL) * trackNumber; - UInt64 r = rand(); - r = r << 32; - r += rand(); - UInt64 rval = t ^ r; - return rval; -} - -void writeVideoTrack(EbmlGlobal *glob, unsigned int trackNumber, int flagLacing, - char *codecId, unsigned int pixelWidth, unsigned int pixelHeight, - double frameRate) { - EbmlLoc start; - Ebml_StartSubElement(glob, &start, TrackEntry); - Ebml_SerializeUnsigned(glob, TrackNumber, trackNumber); - UInt64 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, - 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 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); -} -*/ |