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Aegisub/aegisub/FFmpegSource2/indexing.cpp

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// Copyright (c) 2007-2009 Fredrik Mellbin
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <iostream>
#include <fstream>
#include <set>
#include <algorithm>
#include <memory>
#include <errno.h>
#include "indexing.h"
#ifdef __UNIX__
#define _fseeki64 fseeko
#define _ftelli64 ftello
#define _snprintf snprintf
#endif
extern "C" {
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include "MatroskaParser.h"
#include "stdiostream.h"
}
#ifdef _WIN32
# define _WIN32_DCOM
# include <windows.h>
# include <tchar.h>
# include <atlbase.h>
# include <dshow.h>
# include "CoParser.h"
# include <initguid.h>
# include "guids.h"
#endif
class MatroskaAudioContext : public SharedAudioContext {
public:
CompressedStream *CS;
uint8_t *CodecPrivate;
MatroskaAudioContext() {
CS = NULL;
CodecPrivate = NULL;
}
~MatroskaAudioContext() {
if (CTX) {
avcodec_close(CTX);
av_free(CTX);
}
if (CS)
cs_Destroy(CS);
delete[] CodecPrivate;
}
};
class FFAudioContext : public SharedAudioContext {
public:
~FFAudioContext() {
if (CTX)
avcodec_close(CTX);
}
};
#ifdef HAALISOURCE
class HaaliIndexMemory {
private:
MatroskaAudioContext *AudioContexts;
public:
HaaliIndexMemory(int Tracks, MatroskaAudioContext *&AudioContexts) {
AudioContexts = new MatroskaAudioContext[Tracks];
this->AudioContexts = AudioContexts;
}
~HaaliIndexMemory() {
delete[] AudioContexts;
}
};
#endif
class MatroskaIndexMemory {
private:
MatroskaAudioContext *AudioContexts;
MatroskaFile *MF;
MatroskaReaderContext *MC;
public:
MatroskaIndexMemory(int Tracks, MatroskaAudioContext *&AudioContexts, MatroskaFile *MF, MatroskaReaderContext *MC) {
AudioContexts = new MatroskaAudioContext[Tracks];
this->AudioContexts = AudioContexts;
this->MF = MF;
this->MC = MC;
}
~MatroskaIndexMemory() {
delete[] AudioContexts;
mkv_Close(MF);
fclose(MC->ST.fp);
}
};
class FFIndexMemory {
private:
FFAudioContext *AudioContexts;
AVFormatContext *FormatContext;
public:
FFIndexMemory(int Tracks, FFAudioContext *&AudioContexts, AVFormatContext *&FormatContext) {
AudioContexts = new FFAudioContext[Tracks];
this->AudioContexts = AudioContexts;
this->FormatContext = FormatContext;
}
~FFIndexMemory() {
delete[] AudioContexts;
av_close_input_file(FormatContext);
}
};
static bool DTSComparison(TFrameInfo FI1, TFrameInfo FI2) {
return FI1.DTS < FI2.DTS;
}
static void SortTrackIndex(FFIndex *Index) {
for (FFIndex::iterator Cur=Index->begin(); Cur!=Index->end(); Cur++)
std::sort(Cur->begin(), Cur->end(), DTSComparison);
}
bool FFIndexer::WriteAudio(SharedAudioContext &AudioContext, FFIndex *Index, int Track, int DBSize, char *ErrorMsg, unsigned MsgSize) {
// Delay writer creation until after an audio frame has been decoded. This ensures that all parameters are known when writing the headers.
if (DBSize > 0) {
if (!AudioContext.W64W) {
TAudioProperties AP;
FillAP(AP, AudioContext.CTX, (*Index)[Track]);
char *WName = new char[(*ANC)(SourceFile, Track, &AP, NULL, ANCPrivate)];
(*ANC)(SourceFile, Track, &AP, WName, ANCPrivate);
std::string WN(WName);
delete[] WName;
try {
AudioContext.W64W = new Wave64Writer(WN.c_str(), av_get_bits_per_sample_format(AudioContext.CTX->sample_fmt),
AudioContext.CTX->channels, AudioContext.CTX->sample_rate, AudioFMTIsFloat(AudioContext.CTX->sample_fmt));
} catch (...) {
_snprintf(ErrorMsg, MsgSize, "Failed to write wave data");
return false;
}
}
AudioContext.W64W->WriteData(DecodingBuffer, DBSize);
}
return true;
}
#ifdef HAALISOURCE
FFHaaliIndexer::FFHaaliIndexer(const char *Filename, int SourceMode, char *ErrorMsg, unsigned MsgSize) {
SourceFile = Filename;
this->SourceMode = SourceMode;
memset(TrackType, FFMS_TYPE_UNKNOWN, sizeof(TrackType));
memset(Codec, 0, sizeof(Codec));
memset(CodecPrivate, 0, sizeof(CodecPrivate));
memset(CodecPrivateSize, 0, sizeof(CodecPrivateSize));
CLSID clsid = HAALI_TS_Parser;
if (SourceMode == 1)
clsid = HAALI_OGM_Parser;
if (FAILED(pMMC.CoCreateInstance(clsid))) {
_snprintf(ErrorMsg, MsgSize, "Can't create parser");
throw ErrorMsg;
}
CComPtr<IMemAlloc> pMA;
if (FAILED(pMA.CoCreateInstance(CLSID_MemAlloc))) {
_snprintf(ErrorMsg, MsgSize, "Can't create memory allocator");
throw ErrorMsg;
}
CComPtr<IMMStream> pMS;
if (FAILED(pMS.CoCreateInstance(CLSID_DiskFile))) {
_snprintf(ErrorMsg, MsgSize, "Can't create disk file reader");
throw ErrorMsg;
}
WCHAR WSourceFile[2048];
mbstowcs(WSourceFile, SourceFile, 2000);
CComQIPtr<IMMStreamOpen> pMSO(pMS);
if (FAILED(pMSO->Open(WSourceFile))) {
_snprintf(ErrorMsg, MsgSize, "Can't open file");
throw ErrorMsg;
}
if (FAILED(pMMC->Open(pMS, 0, NULL, pMA))) {
_snprintf(ErrorMsg, MsgSize, "Can't parse file");
throw ErrorMsg;
}
NumTracks = 0;
CComPtr<IEnumUnknown> pEU;
if (SUCCEEDED(pMMC->EnumTracks(&pEU))) {
CComPtr<IUnknown> pU;
while (pEU->Next(1, &pU, NULL) == S_OK) {
CComQIPtr<IPropertyBag> pBag = pU;
if (pBag) {
CComVariant pV;
pV.Clear();
if (SUCCEEDED(pBag->Read(L"Type", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4)))
TrackType[NumTracks] = HaaliTrackTypeToFFTrackType(pV.uintVal);
pV.Clear();
if (SUCCEEDED(pBag->Read(L"CodecPrivate", &pV, NULL))) {
CodecPrivateSize[NumTracks] = vtSize(pV);
CodecPrivate[NumTracks] = new uint8_t[CodecPrivateSize[NumTracks]];
vtCopy(pV, CodecPrivate[NumTracks]);
}
pV.Clear();
if (SUCCEEDED(pBag->Read(L"CodecID", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_BSTR))) {
char CodecID[2048];
wcstombs(CodecID, pV.bstrVal, 2000);
Codec[NumTracks] = avcodec_find_decoder(MatroskaToFFCodecID(CodecID, CodecPrivate[NumTracks]));
}
}
pU = NULL;
NumTracks++;
}
}
}
FFIndex *FFHaaliIndexer::DoIndexing(char *ErrorMsg, unsigned MsgSize) {
// Audio stuff
MatroskaAudioContext *AudioContexts;
HaaliIndexMemory IM = HaaliIndexMemory(NumTracks, AudioContexts);
std::auto_ptr<FFIndex> TrackIndices(new FFIndex());
TrackIndices->Decoder = 2;
if (SourceMode == 1)
TrackIndices->Decoder = 3;
for (int i = 0; i < NumTracks; i++) {
TrackIndices->push_back(FFTrack(1, 1000000000, TrackType[i]));
if (IndexMask & (1 << i) && TrackType[i] == FFMS_TYPE_AUDIO) {
AVCodecContext *AudioCodecContext = avcodec_alloc_context();
AudioCodecContext->extradata = CodecPrivate[i];
AudioCodecContext->extradata_size = CodecPrivateSize[i];
AudioContexts[i].CTX = AudioCodecContext;
if (Codec[i] == NULL) {
av_free(AudioCodecContext);
AudioContexts[i].CTX = NULL;
_snprintf(ErrorMsg, MsgSize, "Audio codec not found");
return NULL;
}
if (avcodec_open(AudioCodecContext, Codec[i]) < 0) {
av_free(AudioCodecContext);
AudioContexts[i].CTX = NULL;
_snprintf(ErrorMsg, MsgSize, "Could not open audio codec");
return NULL;
}
} else {
IndexMask &= ~(1 << i);
}
}
//
AVPacket TempPacket;
InitNullPacket(&TempPacket);
for (;;) {
if (IC) {
if ((*IC)(0, 1, ICPrivate)) {
_snprintf(ErrorMsg, MsgSize, "Cancelled by user");
return NULL;
}
}
CComPtr<IMMFrame> pMMF;
if (pMMC->ReadFrame(NULL, &pMMF) != S_OK)
break;
REFERENCE_TIME Ts, Te;
HRESULT hr = pMMF->GetTime(&Ts, &Te);
unsigned int Track = pMMF->GetTrack();
// Only create index entries for video for now to save space
if (TrackType[Track] == FFMS_TYPE_VIDEO) {
(*TrackIndices)[Track].push_back(TFrameInfo(Ts, pMMF->IsSyncPoint() == S_OK));
} else if (TrackType[Track] == FFMS_TYPE_AUDIO && (IndexMask & (1 << Track))) {
(*TrackIndices)[Track].push_back(TFrameInfo(Ts, AudioContexts[Track].CurrentSample, 0 /* FIXME? */, pMMF->GetActualDataLength(), pMMF->IsSyncPoint() == S_OK));
AVCodecContext *AudioCodecContext = AudioContexts[Track].CTX;
pMMF->GetPointer(&TempPacket.data);
TempPacket.size = pMMF->GetActualDataLength();
if (pMMF->IsSyncPoint() == S_OK)
TempPacket.flags = PKT_FLAG_KEY;
else
TempPacket.flags = 0;
while (TempPacket.size > 0) {
int dbsize = AVCODEC_MAX_AUDIO_FRAME_SIZE*10;
int Ret = avcodec_decode_audio3(AudioCodecContext, DecodingBuffer, &dbsize, &TempPacket);
if (Ret < 0) {
if (IgnoreDecodeErrors) {
(*TrackIndices)[Track].clear();
IndexMask &= ~(1 << Track);
break;
} else {
_snprintf(ErrorMsg, MsgSize, "Audio decoding error");
return NULL;
}
}
if (Ret > 0) {
TempPacket.size -= Ret;
TempPacket.data += Ret;
}
if (dbsize > 0)
AudioContexts[Track].CurrentSample += (dbsize * 8) / (av_get_bits_per_sample_format(AudioCodecContext->sample_fmt) * AudioCodecContext->channels);
if (DumpMask & (1 << Track))
WriteAudio(AudioContexts[Track], TrackIndices.get(), Track, dbsize, ErrorMsg, MsgSize);
}
}
}
SortTrackIndex(TrackIndices.get());
return TrackIndices.release();
}
#endif
FFMatroskaIndexer::FFMatroskaIndexer(const char *Filename, char *ErrorMsg, unsigned MsgSize) {
memset(Codec, 0, sizeof(Codec));
SourceFile = Filename;
char ErrorMessage[256];
InitStdIoStream(&MC.ST);
MC.ST.fp = fopen(SourceFile, "rb");
if (MC.ST.fp == NULL) {
_snprintf(ErrorMsg, MsgSize, "Can't open '%s': %s", SourceFile, strerror(errno));
throw ErrorMsg;
}
setvbuf(MC.ST.fp, NULL, _IOFBF, CACHESIZE);
MF = mkv_OpenEx(&MC.ST.base, 0, 0, ErrorMessage, sizeof(ErrorMessage));
if (MF == NULL) {
fclose(MC.ST.fp);
_snprintf(ErrorMsg, MsgSize, "Can't parse Matroska file: %s", ErrorMessage);
throw ErrorMsg;
}
for (unsigned int i = 0; i < mkv_GetNumTracks(MF); i++) {
TrackInfo *TI = mkv_GetTrackInfo(MF, i);
Codec[i] = avcodec_find_decoder(MatroskaToFFCodecID(TI->CodecID, TI->CodecPrivate));
}
}
FFIndex *FFMatroskaIndexer::DoIndexing(char *ErrorMsg, unsigned MsgSize) {
char ErrorMessage[256];
// Audio stuff
MatroskaAudioContext *AudioContexts;
MatroskaIndexMemory IM = MatroskaIndexMemory(mkv_GetNumTracks(MF), AudioContexts, MF, &MC);
for (unsigned int i = 0; i < mkv_GetNumTracks(MF); i++) {
TrackInfo *TI = mkv_GetTrackInfo(MF, i);
if (IndexMask & (1 << i) && TI->Type == TT_AUDIO) {
AVCodecContext *AudioCodecContext = avcodec_alloc_context();
AudioCodecContext->extradata = (uint8_t *)TI->CodecPrivate;
AudioCodecContext->extradata_size = TI->CodecPrivateSize;
AudioContexts[i].CTX = AudioCodecContext;
if (TI->CompEnabled) {
AudioContexts[i].CS = cs_Create(MF, i, ErrorMessage, sizeof(ErrorMessage));
if (AudioContexts[i].CS == NULL) {
av_free(AudioCodecContext);
AudioContexts[i].CTX = NULL;
_snprintf(ErrorMsg, MsgSize, "Can't create decompressor: %s", ErrorMessage);
return NULL;
}
}
AVCodec *AudioCodec = Codec[i];
if (AudioCodec == NULL) {
av_free(AudioCodecContext);
AudioContexts[i].CTX = NULL;
_snprintf(ErrorMsg, MsgSize, "Audio codec not found");
return NULL;
}
if (avcodec_open(AudioCodecContext, AudioCodec) < 0) {
av_free(AudioCodecContext);
AudioContexts[i].CTX = NULL;
_snprintf(ErrorMsg, MsgSize, "Could not open audio codec");
return NULL;
}
} else {
IndexMask &= ~(1 << i);
}
}
//
int64_t CurrentPos = _ftelli64(MC.ST.fp);
_fseeki64(MC.ST.fp, 0, SEEK_END);
int64_t SourceSize = _ftelli64(MC.ST.fp);
_fseeki64(MC.ST.fp, CurrentPos, SEEK_SET);
std::auto_ptr<FFIndex> TrackIndices(new FFIndex());
TrackIndices->Decoder = 1;
for (unsigned int i = 0; i < mkv_GetNumTracks(MF); i++)
TrackIndices->push_back(FFTrack(mkv_TruncFloat(mkv_GetTrackInfo(MF, i)->TimecodeScale), 1000000, HaaliTrackTypeToFFTrackType(mkv_GetTrackInfo(MF, i)->Type)));
ulonglong StartTime, EndTime, FilePos;
unsigned int Track, FrameFlags, FrameSize;
AVPacket TempPacket;
InitNullPacket(&TempPacket);
while (mkv_ReadFrame(MF, 0, &Track, &StartTime, &EndTime, &FilePos, &FrameSize, &FrameFlags) == 0) {
// Update progress
if (IC) {
if ((*IC)(_ftelli64(MC.ST.fp), SourceSize, ICPrivate)) {
_snprintf(ErrorMsg, MsgSize, "Cancelled by user");
return NULL;
}
}
// Only create index entries for video for now to save space
if (mkv_GetTrackInfo(MF, Track)->Type == TT_VIDEO) {
(*TrackIndices)[Track].push_back(TFrameInfo(StartTime, FilePos, FrameSize, (FrameFlags & FRAME_KF) != 0));
} else if (mkv_GetTrackInfo(MF, Track)->Type == TT_AUDIO && (IndexMask & (1 << Track))) {
(*TrackIndices)[Track].push_back(TFrameInfo(StartTime, AudioContexts[Track].CurrentSample, FilePos, FrameSize, (FrameFlags & FRAME_KF) != 0));
ReadFrame(FilePos, FrameSize, AudioContexts[Track].CS, MC, ErrorMsg, MsgSize);
AVCodecContext *AudioCodecContext = AudioContexts[Track].CTX;
TempPacket.data = MC.Buffer;
TempPacket.size = FrameSize;
if ((FrameFlags & FRAME_KF) != 0)
TempPacket.flags = PKT_FLAG_KEY;
else
TempPacket.flags = 0;
while (TempPacket.size > 0) {
int dbsize = AVCODEC_MAX_AUDIO_FRAME_SIZE*10;
int Ret = avcodec_decode_audio3(AudioCodecContext, DecodingBuffer, &dbsize, &TempPacket);
if (Ret < 0) {
if (IgnoreDecodeErrors) {
(*TrackIndices)[Track].clear();
IndexMask &= ~(1 << Track);
break;
} else {
_snprintf(ErrorMsg, MsgSize, "Audio decoding error");
return NULL;
}
}
if (Ret > 0) {
TempPacket.size -= Ret;
TempPacket.data += Ret;
}
if (dbsize > 0)
AudioContexts[Track].CurrentSample += (dbsize * 8) / (av_get_bits_per_sample_format(AudioCodecContext->sample_fmt) * AudioCodecContext->channels);
if (DumpMask & (1 << Track))
WriteAudio(AudioContexts[Track], TrackIndices.get(), Track, dbsize, ErrorMsg, MsgSize);
}
}
}
SortTrackIndex(TrackIndices.get());
return TrackIndices.release();
}
FFIndexer *FFIndexer::CreateFFIndexer(const char *Filename, char *ErrorMsg, unsigned MsgSize) {
AVFormatContext *FormatContext = NULL;
if (av_open_input_file(&FormatContext, Filename, NULL, 0, NULL) != 0) {
_snprintf(ErrorMsg, MsgSize, "Can't open '%s'", Filename);
return NULL;
}
// Do matroska indexing instead?
if (!strcmp(FormatContext->iformat->name, "matroska")) {
av_close_input_file(FormatContext);
return new FFMatroskaIndexer(Filename, ErrorMsg, MsgSize);
}
#ifdef HAALISOURCE
// Do haali ts indexing instead?
if (!strcmp(FormatContext->iformat->name, "mpeg") || !strcmp(FormatContext->iformat->name, "mpegts")) {
av_close_input_file(FormatContext);
return new FFHaaliIndexer(Filename, 0, ErrorMsg, MsgSize);
}
if (!strcmp(FormatContext->iformat->name, "ogg")) {
av_close_input_file(FormatContext);
return new FFHaaliIndexer(Filename, 1, ErrorMsg, MsgSize);
}
#endif
return new FFLAVFIndexer(Filename, FormatContext, ErrorMsg, MsgSize);
}
FFIndexer::FFIndexer() {
DecodingBuffer = new int16_t[AVCODEC_MAX_AUDIO_FRAME_SIZE * 5];
}
FFIndexer::~FFIndexer() {
delete[] DecodingBuffer;
}
FFLAVFIndexer::FFLAVFIndexer(const char *Filename, AVFormatContext *FormatContext, char *ErrorMsg, unsigned MsgSize) {
SourceFile = Filename;
this->FormatContext = FormatContext;
IsIndexing = false;
if (av_find_stream_info(FormatContext) < 0) {
av_close_input_file(FormatContext);
_snprintf(ErrorMsg, MsgSize, "Couldn't find stream information");
throw ErrorMsg;
}
}
FFLAVFIndexer::~FFLAVFIndexer() {
if (!IsIndexing)
av_close_input_file(FormatContext);
}
FFIndex *FFLAVFIndexer::DoIndexing(char *ErrorMsg, unsigned MsgSize) {
IsIndexing = true;
// Audio stuff
FFAudioContext *AudioContexts;
FFIndexMemory IM = FFIndexMemory(FormatContext->nb_streams, AudioContexts, FormatContext);
for (unsigned int i = 0; i < FormatContext->nb_streams; i++) {
if (IndexMask & (1 << i) && FormatContext->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO) {
AVCodecContext *AudioCodecContext = FormatContext->streams[i]->codec;
AVCodec *AudioCodec = avcodec_find_decoder(AudioCodecContext->codec_id);
if (AudioCodec == NULL) {
_snprintf(ErrorMsg, MsgSize, "Audio codec not found");
return NULL;
}
if (avcodec_open(AudioCodecContext, AudioCodec) < 0) {
_snprintf(ErrorMsg, MsgSize, "Could not open audio codec");
return NULL;
}
AudioContexts[i].CTX = AudioCodecContext;
} else {
IndexMask &= ~(1 << i);
}
}
//
std::auto_ptr<FFIndex> TrackIndices(new FFIndex());
TrackIndices->Decoder = 0;
for (unsigned int i = 0; i < FormatContext->nb_streams; i++)
TrackIndices->push_back(FFTrack((int64_t)FormatContext->streams[i]->time_base.num * 1000,
FormatContext->streams[i]->time_base.den,
static_cast<FFMS_TrackType>(FormatContext->streams[i]->codec->codec_type)));
AVPacket Packet, TempPacket;
InitNullPacket(&Packet);
InitNullPacket(&TempPacket);
while (av_read_frame(FormatContext, &Packet) >= 0) {
// Update progress
if (IC) {
if ((*IC)(FormatContext->pb->pos, FormatContext->file_size, ICPrivate)) {
_snprintf(ErrorMsg, MsgSize, "Cancelled by user");
return NULL;
}
}
// Only create index entries for video for now to save space
if (FormatContext->streams[Packet.stream_index]->codec->codec_type == CODEC_TYPE_VIDEO) {
(*TrackIndices)[Packet.stream_index].push_back(TFrameInfo(Packet.dts, (Packet.flags & PKT_FLAG_KEY) ? 1 : 0));
} else if (FormatContext->streams[Packet.stream_index]->codec->codec_type == CODEC_TYPE_AUDIO && (IndexMask & (1 << Packet.stream_index))) {
(*TrackIndices)[Packet.stream_index].push_back(TFrameInfo(Packet.dts, AudioContexts[Packet.stream_index].CurrentSample, (Packet.flags & PKT_FLAG_KEY) ? 1 : 0));
AVCodecContext *AudioCodecContext = FormatContext->streams[Packet.stream_index]->codec;
TempPacket.data = Packet.data;
TempPacket.size = Packet.size;
while (TempPacket.size > 0) {
int dbsize = AVCODEC_MAX_AUDIO_FRAME_SIZE*10;
int Ret = avcodec_decode_audio3(AudioCodecContext, DecodingBuffer, &dbsize, &TempPacket);
if (Ret < 0) {
if (IgnoreDecodeErrors) {
(*TrackIndices)[Packet.stream_index].clear();
IndexMask &= ~(1 << Packet.stream_index);
break;
} else {
_snprintf(ErrorMsg, MsgSize, "Audio decoding error");
return NULL;
}
}
if (Ret > 0) {
TempPacket.size -= Ret;
TempPacket.data += Ret;
}
if (dbsize > 0)
AudioContexts[Packet.stream_index].CurrentSample += (dbsize * 8) / (av_get_bits_per_sample_format(AudioCodecContext->sample_fmt) * AudioCodecContext->channels);
if (DumpMask & (1 << Packet.stream_index))
WriteAudio(AudioContexts[Packet.stream_index], TrackIndices.get(), Packet.stream_index, dbsize, ErrorMsg, MsgSize);
}
}
av_free_packet(&Packet);
}
SortTrackIndex(TrackIndices.get());
return TrackIndices.release();
}
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