forked from mia/Aegisub
206 lines
6.9 KiB
C++
206 lines
6.9 KiB
C++
// Copyright (c) 2007-2008 Fredrik Mellbin
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "ffms.h"
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#include "ffvideosource.h"
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#include "ffaudiosource.h"
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#include "indexing.h"
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FrameInfo::FrameInfo(int64_t DTS, bool KeyFrame) {
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this->DTS = DTS;
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this->SampleStart = 0;
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this->FilePos = 0;
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this->FrameSize = 0;
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this->KeyFrame = KeyFrame;
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}
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FrameInfo::FrameInfo(int64_t DTS, int64_t SampleStart, bool KeyFrame) {
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this->DTS = DTS;
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this->SampleStart = SampleStart;
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this->FilePos = 0;
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this->FrameSize = 0;
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this->KeyFrame = KeyFrame;
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}
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FrameInfo::FrameInfo(int64_t SampleStart, int64_t FilePos, unsigned int FrameSize, bool KeyFrame) {
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this->DTS = 0;
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this->SampleStart = SampleStart;
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this->FilePos = FilePos;
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this->FrameSize = FrameSize;
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this->KeyFrame = KeyFrame;
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}
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FFMS_API(void) FFMS_Init() {
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static bool InitDone = false;
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if (!InitDone)
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av_register_all();
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InitDone = true;
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}
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FFMS_API(VideoBase *) FFMS_CreateVideoSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, const char *PP, int Threads, int SeekMode, char *ErrorMsg, unsigned MsgSize) {
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try {
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switch (TrackIndices->Decoder) {
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case 0: return new FFVideoSource(SourceFile, Track, TrackIndices, PP, Threads, SeekMode, ErrorMsg, MsgSize);
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case 1: return new MatroskaVideoSource(SourceFile, Track, TrackIndices, PP, Threads, ErrorMsg, MsgSize);
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#ifdef HAALITS
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case 2: return new HaaliTSVideoSource(SourceFile, Track, TrackIndices, PP, Threads, ErrorMsg, MsgSize);
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#endif
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default:
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_snprintf(ErrorMsg, MsgSize, "Unsupported format");
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return NULL;
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}
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} catch (...) {
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return NULL;
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}
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}
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FFMS_API(AudioBase *) FFMS_CreateAudioSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, char *ErrorMsg, unsigned MsgSize) {
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try {
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switch (TrackIndices->Decoder) {
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case 0: return new FFAudioSource(SourceFile, Track, TrackIndices, ErrorMsg, MsgSize);
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case 1: return new MatroskaAudioSource(SourceFile, Track, TrackIndices, ErrorMsg, MsgSize);
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default:
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_snprintf(ErrorMsg, MsgSize, "Unsupported format");
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return NULL;
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}
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} catch (...) {
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return NULL;
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}
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}
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FFMS_API(void) FFMS_DestroyVideoSource(VideoBase *VB) {
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delete VB;
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}
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FFMS_API(void) FFMS_DestroyAudioSource(AudioBase *AB) {
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delete AB;
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}
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FFMS_API(const VideoProperties *) FFMS_GetVideoProperties(VideoBase *VB) {
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return &VB->GetVideoProperties();
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}
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FFMS_API(const AudioProperties *) FFMS_GetAudioProperties(AudioBase *AB) {
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return &AB->GetAudioProperties();
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}
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FFMS_API(const AVFrameLite *) FFMS_GetFrame(VideoBase *VB, int n, char *ErrorMsg, unsigned MsgSize) {
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return (AVFrameLite *)VB->GetFrame(n, ErrorMsg, MsgSize);
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}
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FFMS_API(const AVFrameLite *) FFMS_GetFrameByTime(VideoBase *VB, double Time, char *ErrorMsg, unsigned MsgSize) {
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return (AVFrameLite *)VB->GetFrameByTime(Time, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_GetAudio(AudioBase *AB, void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize) {
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return AB->GetAudio(Buf, Start, Count, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_SetOutputFormat(VideoBase *VB, int TargetFormat, int Width, int Height, char *ErrorMsg, unsigned MsgSize) {
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return VB->SetOutputFormat(TargetFormat, Width, Height, ErrorMsg, MsgSize);
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}
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FFMS_API(void) FFMS_ResetOutputFormat(VideoBase *VB) {
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VB->ResetOutputFormat();
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}
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FFMS_API(void) FFMS_DestroyFrameIndex(FrameIndex *FI) {
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delete FI;
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}
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FFMS_API(int) FFMS_GetFirstTrackOfType(FrameIndex *TrackIndices, int TrackType, char *ErrorMsg, unsigned MsgSize) {
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for (int i = 0; i < TrackIndices->size(); i++)
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if ((*TrackIndices)[i].TT == TrackType)
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return i;
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_snprintf(ErrorMsg, MsgSize, "No suitable track found");
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return -1;
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}
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FFMS_API(int) FFMS_GetNumTracks(FrameIndex *TrackIndices) {
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return TrackIndices->size();
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}
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FFMS_API(int) FFMS_GetTrackType(FrameInfoVector *FIV) {
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return FIV->TT;
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}
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FFMS_API(int) FFMS_GetNumFrames(FrameInfoVector *FIV) {
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return FIV->size();
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}
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FFMS_API(const FrameInfo *) FFMS_GetFrameInfo(FrameInfoVector *FIV, int Frame, char *ErrorMsg, unsigned MsgSize) {
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if (Frame < 0 || Frame >= FIV->size()) {
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_snprintf(ErrorMsg, MsgSize, "Invalid frame specified");
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return NULL;
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} else {
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return &(*FIV)[Frame];
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}
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}
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FFMS_API(FrameInfoVector *) FFMS_GetTITrackIndex(FrameIndex *TrackIndices, int Track, char *ErrorMsg, unsigned MsgSize) {
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if (Track < 0 || Track >= TrackIndices->size()) {
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_snprintf(ErrorMsg, MsgSize, "Invalid track specified");
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return NULL;
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} else {
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return &(*TrackIndices)[Track];
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}
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}
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FFMS_API(FrameInfoVector *) FFMS_GetVSTrackIndex(VideoBase *VB) {
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return VB->GetFrameInfoVector();
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}
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FFMS_API(int) FFMS_FindClosestKeyFrame(FrameInfoVector *FIV, int Frame, char *ErrorMsg, unsigned MsgSize) {
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if (Frame < 0 || Frame >= FIV->size()) {
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_snprintf(ErrorMsg, MsgSize, "Out of range frame specified");
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return -1;
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} else {
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return FIV->FindClosestKeyFrame(Frame);
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}
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}
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FFMS_API(int) FFMS_FrameFromDTS(FrameInfoVector *FIV, int64_t DTS) {
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return FIV->FrameFromDTS(DTS);
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}
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FFMS_API(int) FFMS_ClosestFrameFromDTS(FrameInfoVector *FIV, int64_t DTS) {
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return FIV->ClosestFrameFromDTS(DTS);
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}
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FFMS_API(const TrackTimeBase *) FFMS_GetTimeBase(FrameInfoVector *FIV) {
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return &FIV->TB;
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}
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FFMS_API(int) FFMS_WriteTimecodes(FrameInfoVector *FIV, const char *TimecodeFile, char *ErrorMsg, unsigned MsgSize) {
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return FIV->WriteTimecodes(TimecodeFile, ErrorMsg, MsgSize);
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}
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FFMS_API(FrameIndex *) FFMS_MakeIndex(const char *SourceFile, int IndexMask, int DumpMask, const char *AudioFile, bool IgnoreDecodeErrors, IndexCallback IP, void *Private, char *ErrorMsg, unsigned MsgSize) {
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return MakeIndex(SourceFile, IndexMask, DumpMask, AudioFile, IgnoreDecodeErrors, IP, Private, ErrorMsg, MsgSize);
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}
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FFMS_API(FrameIndex *) FFMS_ReadIndex(const char *IndexFile, char *ErrorMsg, unsigned MsgSize) {
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return ReadIndex(IndexFile, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_WriteIndex(const char *IndexFile, FrameIndex *TrackIndices, char *ErrorMsg, unsigned MsgSize) {
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return WriteIndex(IndexFile, TrackIndices, ErrorMsg, MsgSize);
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}
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