forked from mia/Aegisub
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
#include <windows.h>
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#include <stdio.h>
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#include <vector>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <fcntl.h>
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#include <io.h>
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#include <stream_decoder.h>
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#include <stream_encoder.h>
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extern "C" {
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#include <ffmpeg\avformat.h>
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#include <ffmpeg\avcodec.h>
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#include <ffmpeg\swscale.h>
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#include <postproc\postprocess.h>
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}
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#include "MatroskaParser.h"
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#include "avisynth.h"
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enum AudioCacheFormat {acNone, acRaw, acFLAC};
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int GetPPCPUFlags(IScriptEnvironment *Env);
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int GetSWSCPUFlags(IScriptEnvironment *Env);
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CodecID MatroskaToFFCodecID(TrackInfo *TI);
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class FFPP : public GenericVideoFilter {
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private:
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pp_context_t *PPContext;
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pp_mode_t *PPMode;
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SwsContext *SWSTo422P;
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SwsContext *SWSFrom422P;
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AVPicture InputPicture;
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AVPicture OutputPicture;
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public:
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FFPP(PClip AChild, const char *APPString, int AQuality, IScriptEnvironment *Env);
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~FFPP();
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PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* Env);
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};
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class FFBase : public IClip{
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private:
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pp_context_t *PPContext;
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pp_mode_t *PPMode;
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SwsContext *SWS;
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int ConvertToFormat;
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AVPicture PPPicture;
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protected:
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VideoInfo VI;
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AVFrame *DecodeFrame;
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FILE *RawAudioCache;
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FLAC__StreamDecoder *FLACAudioCache;
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AudioCacheFormat AudioCacheType;
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uint8_t *DecodingBuffer;
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FLAC__int32 *FLACBuffer;
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struct FrameInfo {
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int64_t DTS;
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bool KeyFrame;
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FrameInfo(int64_t ADTS, bool AKeyFrame) : DTS(ADTS), KeyFrame(AKeyFrame) {};
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};
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std::vector<FrameInfo> FrameToDTS;
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int FindClosestKeyFrame(int AFrame);
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int FrameFromDTS(int64_t ADTS);
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int ClosestFrameFromDTS(int64_t ADTS);
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bool LoadFrameInfoFromFile(const char *AVideoCacheFile, const char *ASource, int AVideoTrack);
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bool SaveFrameInfoToFile(const char *AVideoCacheFile, const char *ASource, int AVideoTrack);
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bool SaveTimecodesToFile(const char *ATimecodeFile, int64_t ScaleD, int64_t ScaleN);
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bool OpenAudioCache(const char *AAudioCacheFile, const char *ASource, int AAudioTrack, IScriptEnvironment *Env);
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FLAC__StreamEncoder *FFBase::NewFLACCacheWriter(const char *AAudioCacheFile, const char *ASource, int AAudioTrack, int ACompression, IScriptEnvironment *Env);
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void FFBase::CloseFLACCacheWriter(FLAC__StreamEncoder *AFSE);
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FILE *FFBase::NewRawCacheWriter(const char *AAudioCacheFile, const char *ASource, int AAudioTrack, IScriptEnvironment *Env);
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void FFBase::CloseRawCacheWriter(FILE *ARawCache);
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void InitPP(int AWidth, int AHeight, const char *APPString, int AQuality, int APixelFormat, IScriptEnvironment *Env);
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void SetOutputFormat(int ACurrentFormat, IScriptEnvironment *Env);
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PVideoFrame OutputFrame(AVFrame *AFrame, IScriptEnvironment *Env);
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public:
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// FLAC decoder variables, have to be public
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FILE *FCFile;
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__int64 FCCount;
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void *FCBuffer;
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bool FCError;
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FFBase();
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~FFBase();
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bool __stdcall GetParity(int n) { return false; }
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void __stdcall SetCacheHints(int cachehints, int frame_range) { }
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const VideoInfo& __stdcall GetVideoInfo() { return VI; }
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void __stdcall GetAudio(void* Buf, __int64 Start, __int64 Count, IScriptEnvironment* Env);
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};
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class FFmpegSource : public FFBase {
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private:
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AVFormatContext *FormatContext;
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AVCodecContext *VideoCodecContext;
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int VideoTrack;
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int CurrentFrame;
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int SeekMode;
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int GetTrackIndex(int Index, CodecType ATrackType, IScriptEnvironment *Env);
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int DecodeNextFrame(AVFrame *Frame, int64_t *DTS);
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public:
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FFmpegSource(const char *ASource, int AVideoTrack, int AAudioTrack, const char *ATimecodes, bool AVCache, const char *AVideoCache, const char *AAudioCache, int AACCompression, const char *APPString, int AQuality, int ASeekMode, IScriptEnvironment* Env);
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~FFmpegSource();
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PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* Env);
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};
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