mirror of https://github.com/odrling/Aegisub
140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
// Copyright (c) 2006-2007, Rodrigo Braz Monteiro
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// * Neither the name of the Aegisub Group nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// AEGISUB
|
|
//
|
|
// Website: http://aegisub.cellosoft.com
|
|
// Contact: mailto:zeratul@cellosoft.com
|
|
//
|
|
|
|
|
|
///////////
|
|
// Headers
|
|
|
|
#ifdef WITH_FFMPEG
|
|
|
|
#ifdef WIN32
|
|
#define EMULATE_INTTYPES
|
|
#endif
|
|
#include <vector>
|
|
extern "C" {
|
|
#include <ffmpeg/avcodec.h>
|
|
#include <ffmpeg/avformat.h>
|
|
#include <ffmpeg/swscale.h>
|
|
}
|
|
#include "include/aegisub/video_provider.h"
|
|
#include "include/aegisub/aegisub.h"
|
|
#include "mkv_wrap.h"
|
|
#include "lavc_file.h"
|
|
#include "lavc_keyframes.h"
|
|
|
|
|
|
///////////////////////
|
|
// LibAVCodec provider
|
|
class LAVCVideoProvider : public VideoProvider {
|
|
friend class LAVCAudioProvider;
|
|
private:
|
|
MatroskaWrapper mkv;
|
|
|
|
LAVCFile *lavcfile;
|
|
AVCodecContext *codecContext;
|
|
AVStream *stream;
|
|
AVCodec *codec;
|
|
AVFrame *frame;
|
|
int vidStream;
|
|
|
|
AVFrame *frameRGB;
|
|
uint8_t *bufferRGB;
|
|
SwsContext *sws_context;
|
|
|
|
wxArrayInt KeyFramesList;
|
|
bool keyFramesLoaded;
|
|
// bool isVfr; // currently unused
|
|
|
|
int display_w;
|
|
int display_h;
|
|
|
|
wxArrayInt bytePos;
|
|
|
|
bool allowUnsafeSeeking;
|
|
bool isMkv;
|
|
int64_t lastDecodeTime;
|
|
int frameNumber;
|
|
int lastFrameNumber;
|
|
int length;
|
|
AegiVideoFrame curFrame;
|
|
bool validFrame;
|
|
LAVCFrameInfoVector framesData;
|
|
|
|
uint8_t *buffer1;
|
|
uint8_t *buffer2;
|
|
int buffer1Size;
|
|
int buffer2Size;
|
|
|
|
int FindClosestKeyframe(int frameN);
|
|
int FrameFromDTS(int64_t ADTS);
|
|
int ClosestFrameFromDTS(int64_t ADTS);
|
|
bool GetNextFrame(int64_t *DTS);
|
|
void LoadVideo(Aegisub::String filename, double fps);
|
|
void Close();
|
|
|
|
protected:
|
|
|
|
public:
|
|
LAVCVideoProvider(Aegisub::String filename, double fps);
|
|
~LAVCVideoProvider();
|
|
|
|
const AegiVideoFrame GetFrame(int n,int formatType);
|
|
int GetPosition();
|
|
int GetFrameCount();
|
|
|
|
int GetWidth();
|
|
int GetHeight();
|
|
double GetFPS();
|
|
bool AreKeyFramesLoaded() { return keyFramesLoaded; };
|
|
wxArrayInt GetKeyFrames() { return KeyFramesList; };
|
|
bool IsVFR() { return false; }; // FIXME: bork?
|
|
FrameRate GetTrueFrameRate() { return FrameRate(); }; // nothing useful here
|
|
Aegisub::String GetDecoderName() { return L"FFMpeg/libavcodec"; }
|
|
bool IsNativelyByFrames() { return true; }
|
|
int GetDesiredCacheSize() { return 8; }
|
|
};
|
|
|
|
|
|
|
|
|
|
///////////
|
|
// Factory
|
|
class LAVCVideoProviderFactory : public VideoProviderFactory {
|
|
public:
|
|
VideoProvider *CreateProvider(Aegisub::String video,double fps=0.0) { return new LAVCVideoProvider(video,fps); }
|
|
};
|
|
|
|
#endif
|