Aegisub/FFmpegSource2/ffvideosource.h

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// Copyright (c) 2007-2008 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.
#ifndef FFVIDEOSOURCE_H
#define FFVIDEOSOURCE_H
extern "C" {
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libswscale/swscale.h>
#include <libpostproc/postprocess.h>
}
#include <vector>
#include "indexing.h"
#include "utils.h"
#include "ffms.h"
class VideoBase {
private:
pp_context_t *PPContext;
pp_mode_t *PPMode;
SwsContext *SWS;
protected:
VideoProperties VP;
AVFrame *DecodeFrame;
AVFrame *PPFrame;
AVFrame *FinalFrame;
int LastFrameNum;
FrameInfoVector Frames;
int VideoTrack;
int CurrentFrame;
AVCodecContext *CodecContext;
VideoBase();
int InitPP(const char *PP, int PixelFormat, char *ErrorMsg, unsigned MsgSize);
AVFrameLite *OutputFrame(AVFrame *Frame);
public:
virtual ~VideoBase();
const VideoProperties& GetVideoProperties() { return VP; }
FrameInfoVector *GetFrameInfoVector() { return &Frames; }
virtual AVFrameLite *GetFrame(int n, char *ErrorMsg, unsigned MsgSize) = 0;
AVFrameLite *GetFrameByTime(double Time, char *ErrorMsg, unsigned MsgSize);
int SetOutputFormat(int TargetFormats, int Width, int Height);
void ResetOutputFormat();
};
class FFVideoSource : public VideoBase {
private:
AVFormatContext *FormatContext;
int SeekMode;
void Free(bool CloseCodec);
int DecodeNextFrame(AVFrame *Frame, int64_t *DTS, char *ErrorMsg, unsigned MsgSize);
public:
FFVideoSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, const char *PP, int Threads, int SeekMode, char *ErrorMsg, unsigned MsgSize);
~FFVideoSource();
AVFrameLite *GetFrame(int n, char *ErrorMsg, unsigned MsgSize);
};
class MatroskaVideoSource : public VideoBase {
private:
MatroskaFile *MF;
MatroskaReaderContext MC;
CompressedStream *CS;
char ErrorMessage[256];
void Free(bool CloseCodec);
int DecodeNextFrame(AVFrame *AFrame, int64_t *AFirstStartTime, char *ErrorMsg, unsigned MsgSize);
public:
MatroskaVideoSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, const char *PP, int Threads, char *ErrorMsg, unsigned MsgSize);
~MatroskaVideoSource();
AVFrameLite *GetFrame(int n, char *ErrorMsg, unsigned MsgSize);
};
#endif