mirror of https://github.com/odrling/Aegisub
336 lines
10 KiB
C++
336 lines
10 KiB
C++
// Copyright (c) 2007-2009 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 <sstream>
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#include <iomanip>
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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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static bool FFmpegInited = false;
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int CPUFeatures = 0;
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#ifdef FFMS_WIN_DEBUG
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extern "C" int av_log_level;
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void av_log_windebug_callback(void* ptr, int level, const char* fmt, va_list vl)
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{
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static int print_prefix=1;
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static int count;
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static char line[1024], prev[1024];
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AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
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if(level>av_log_level)
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return;
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#undef fprintf
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if(print_prefix && avc) {
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snprintf(line, sizeof(line), "[%s @ %p]", avc->item_name(ptr), ptr);
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}else
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line[0]=0;
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vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
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print_prefix= line[strlen(line)-1] == '\n';
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if(print_prefix && !strcmp(line, prev)){
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count++;
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return;
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}
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if(count>0){
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fprintf(stderr, " Last message repeated %d times\n", count);
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count=0;
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}
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OutputDebugStringA(line);
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strcpy(prev, line);
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}
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#endif
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FFMS_API(void) FFMS_Init(int CPUFeatures) {
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if (!FFmpegInited) {
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av_register_all();
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#ifdef FFMS_WIN_DEBUG
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av_log_set_callback(av_log_windebug_callback);
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av_log_set_level(AV_LOG_INFO);
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#else
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av_log_set_level(AV_LOG_QUIET);
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#endif
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::CPUFeatures = CPUFeatures;
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FFmpegInited = true;
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}
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}
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FFMS_API(int) FFMS_GetLogLevel() {
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return av_log_get_level();
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}
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FFMS_API(void) FFMS_SetLogLevel(int Level) {
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av_log_set_level(Level);
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}
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FFMS_API(FFVideo *) FFMS_CreateVideoSource(const char *SourceFile, int Track, FFIndex *Index, const char *PP, int Threads, int SeekMode, char *ErrorMsg, unsigned MsgSize) {
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if (Track < 0 || Track >= static_cast<int>(Index->size())) {
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snprintf(ErrorMsg, MsgSize, "Out of bounds track index selected");
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return NULL;
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}
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if (Index->at(Track).TT != FFMS_TYPE_VIDEO) {
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snprintf(ErrorMsg, MsgSize, "Not a video track");
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return NULL;
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}
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try {
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switch (Index->Decoder) {
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case 0: return new FFLAVFVideo(SourceFile, Track, Index, PP, Threads, SeekMode, ErrorMsg, MsgSize);
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case 1: return new FFMatroskaVideo(SourceFile, Track, Index, PP, Threads, ErrorMsg, MsgSize);
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#ifdef HAALISOURCE
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case 2: return new FFHaaliVideo(SourceFile, Track, Index, PP, Threads, 0, ErrorMsg, MsgSize);
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case 3: return new FFHaaliVideo(SourceFile, Track, Index, PP, Threads, 1, 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(FFAudio *) FFMS_CreateAudioSource(const char *SourceFile, int Track, FFIndex *Index, char *ErrorMsg, unsigned MsgSize) {
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if (Track < 0 || Track >= static_cast<int>(Index->size())) {
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snprintf(ErrorMsg, MsgSize, "Out of bounds track index selected");
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return NULL;
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}
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if (Index->at(Track).TT != FFMS_TYPE_AUDIO) {
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snprintf(ErrorMsg, MsgSize, "Not an audio track");
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return NULL;
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}
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try {
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switch (Index->Decoder) {
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case 0: return new FFLAVFAudio(SourceFile, Track, Index, ErrorMsg, MsgSize);
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case 1: return new FFMatroskaAudio(SourceFile, Track, Index, ErrorMsg, MsgSize);
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#ifdef HAALISOURCE
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case 2: return new FFHaaliAudio(SourceFile, Track, Index, 0, ErrorMsg, MsgSize);
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case 3: return new FFHaaliAudio(SourceFile, Track, Index, 1, 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(void) FFMS_DestroyVideoSource(FFVideo *V) {
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delete V;
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}
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FFMS_API(void) FFMS_DestroyAudioSource(FFAudio *A) {
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delete A;
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}
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FFMS_API(const FFVideoProperties *) FFMS_GetVideoProperties(FFVideo *V) {
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return &V->GetFFVideoProperties();
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}
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FFMS_API(const FFAudioProperties *) FFMS_GetAudioProperties(FFAudio *A) {
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return &A->GetFFAudioProperties();
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}
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FFMS_API(const FFAVFrame *) FFMS_GetFrame(FFVideo *V, int n, char *ErrorMsg, unsigned MsgSize) {
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return (FFAVFrame *)V->GetFrame(n, ErrorMsg, MsgSize);
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}
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FFMS_API(const FFAVFrame *) FFMS_GetFrameByTime(FFVideo *V, double Time, char *ErrorMsg, unsigned MsgSize) {
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return (FFAVFrame *)V->GetFrameByTime(Time, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_GetAudio(FFAudio *A, void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize) {
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return A->GetAudio(Buf, Start, Count, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_SetOutputFormatV(FFVideo *V, int64_t TargetFormats, int Width, int Height, int Resizer, char *ErrorMsg, unsigned MsgSize) {
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return V->SetOutputFormat(TargetFormats, Width, Height, Resizer, ErrorMsg, MsgSize);
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}
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FFMS_API(void) FFMS_ResetOutputFormatV(FFVideo *V) {
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V->ResetOutputFormat();
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}
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FFMS_API(void) FFMS_DestroyIndex(FFIndex *Index) {
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delete Index;
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}
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FFMS_API(int) FFMS_GetFirstTrackOfType(FFIndex *Index, int TrackType, char *ErrorMsg, unsigned MsgSize) {
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for (int i = 0; i < static_cast<int>(Index->size()); i++)
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if ((*Index)[i].TT == TrackType)
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return i;
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snprintf(ErrorMsg, MsgSize, "No suitable, indexed track found");
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return -1;
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}
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FFMS_API(int) FFMS_GetFirstIndexedTrackOfType(FFIndex *Index, int TrackType, char *ErrorMsg, unsigned MsgSize) {
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for (int i = 0; i < static_cast<int>(Index->size()); i++)
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if ((*Index)[i].TT == TrackType && (*Index)[i].size() > 0)
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return i;
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snprintf(ErrorMsg, MsgSize, "No suitable, indexed track found");
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return -1;
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}
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FFMS_API(int) FFMS_GetNumTracks(FFIndex *Index) {
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return Index->size();
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}
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FFMS_API(int) FFMS_GetNumTracksI(FFIndexer *Indexer) {
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return Indexer->GetNumberOfTracks();
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}
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FFMS_API(int) FFMS_GetTrackType(FFTrack *T) {
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return T->TT;
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}
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FFMS_API(int) FFMS_GetTrackTypeI(FFIndexer *Indexer, int Track) {
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return Indexer->GetTrackType(Track);
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}
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FFMS_API(const char *) FFMS_GetCodecNameI(FFIndexer *Indexer, int Track) {
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return Indexer->GetTrackCodec(Track);
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}
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FFMS_API(int) FFMS_GetNumFrames(FFTrack *T) {
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return T->size();
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}
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FFMS_API(const FFFrameInfo *) FFMS_GetFrameInfo(FFTrack *T, int Frame) {
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return reinterpret_cast<FFFrameInfo *>(&(*T)[Frame]);
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}
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FFMS_API(FFTrack *) FFMS_GetTrackFromIndex(FFIndex *Index, int Track) {
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return &(*Index)[Track];
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}
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FFMS_API(FFTrack *) FFMS_GetTrackFromVideo(FFVideo *V) {
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return V->GetFFTrack();
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}
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FFMS_API(FFTrack *) FFMS_GetTrackFromAudio(FFAudio *A) {
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return A->GetFFTrack();
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}
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FFMS_API(const FFTrackTimeBase *) FFMS_GetTimeBase(FFTrack *T) {
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return &T->TB;
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}
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FFMS_API(int) FFMS_WriteTimecodes(FFTrack *T, const char *TimecodeFile, char *ErrorMsg, unsigned MsgSize) {
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return T->WriteTimecodes(TimecodeFile, ErrorMsg, MsgSize);
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}
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FFMS_API(FFIndex *) FFMS_MakeIndex(const char *SourceFile, int IndexMask, int DumpMask, TAudioNameCallback ANC, void *ANCPrivate, bool IgnoreDecodeErrors, TIndexCallback IC, void *ICPrivate, char *ErrorMsg, unsigned MsgSize) {
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FFIndexer *Indexer = FFMS_CreateIndexer(SourceFile, ErrorMsg, MsgSize);
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if (!Indexer)
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return NULL;
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return FFMS_DoIndexing(Indexer, IndexMask, DumpMask, ANC, ANCPrivate, IgnoreDecodeErrors, IC, ICPrivate, ErrorMsg, MsgSize);
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}
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/* Used by FFMS_DefaultAudioFilename */
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static std::string IntToStr(int i, int zp = 0) {
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std::stringstream s;
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s.fill('0');
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s.width(zp);
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s << i;
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return s.str();
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}
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static void ReplaceString(std::string &s, std::string from, std::string to) {
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int idx;
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while ((idx = s.find(from)) != std::string::npos)
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s.replace(idx, from.length(), to);
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}
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FFMS_API(int) FFMS_DefaultAudioFilename(const char *SourceFile, int Track, const FFAudioProperties *AP, char *FileName, int FNSize, void *Private) {
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std::string s = static_cast<char *>(Private);
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ReplaceString(s, "%sourcefile%", SourceFile);
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ReplaceString(s, "%trackn%", IntToStr(Track));
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ReplaceString(s, "%trackzn%", IntToStr(Track, 2));
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ReplaceString(s, "%samplerate%", IntToStr(AP->SampleRate));
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ReplaceString(s, "%channels%", IntToStr(AP->Channels));
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ReplaceString(s, "%bps%", IntToStr(AP->BitsPerSample));
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ReplaceString(s, "%delay%", IntToStr(static_cast<int>(AP->FirstTime)));
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if (FileName == NULL) {
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return s.length() + 1;
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} else {
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strcpy(FileName, s.c_str());
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return 0;
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}
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}
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FFMS_API(FFIndexer *) FFMS_CreateIndexer(const char *SourceFile, char *ErrorMsg, unsigned MsgSize) {
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try {
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return FFIndexer::CreateFFIndexer(SourceFile, ErrorMsg, MsgSize);
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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(FFIndex *) FFMS_DoIndexing(FFIndexer *Indexer, int IndexMask, int DumpMask, TAudioNameCallback ANC, void *ANCPrivate, bool IgnoreDecodeErrors, TIndexCallback IC, void *ICPrivate, char *ErrorMsg, unsigned MsgSize) {
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Indexer->SetIndexMask(IndexMask | DumpMask);
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Indexer->SetDumpMask(DumpMask);
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Indexer->SetIgnoreDecodeErrors(IgnoreDecodeErrors);
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Indexer->SetProgressCallback(IC, ICPrivate);
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Indexer->SetAudioNameCallback(ANC, ANCPrivate);
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FFIndex *Index = Indexer->DoIndexing(ErrorMsg, MsgSize);
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delete Indexer;
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return Index;
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}
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FFMS_API(void) FFMS_CancelIndexing(FFIndexer *Indexer) {
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delete Indexer;
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}
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FFMS_API(FFIndex *) FFMS_ReadIndex(const char *IndexFile, char *ErrorMsg, unsigned MsgSize) {
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FFIndex *Index = new FFIndex();
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if (Index->ReadIndex(IndexFile, ErrorMsg, MsgSize)) {
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delete Index;
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return NULL;
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} else {
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return Index;
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}
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}
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FFMS_API(int) FFMS_IndexBelongsToFile(FFIndex *Index, const char *SourceFile, char *ErrorMsg, unsigned MsgSize) {
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return Index->CompareFileSignature(SourceFile, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_WriteIndex(const char *IndexFile, FFIndex *Index, char *ErrorMsg, unsigned MsgSize) {
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return Index->WriteIndex(IndexFile, ErrorMsg, MsgSize);
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}
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FFMS_API(int) FFMS_GetPixFmt(const char *Name) {
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return avcodec_get_pix_fmt(Name);
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}
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