Aegisub/aegisub/video_provider_ffmpegsource.h

122 lines
3.8 KiB
C++

// Copyright (c) 2008, Karl Blomster
// 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
#include <wx/wxprec.h>
#ifdef WITH_FFMPEGSOURCE
#ifdef WIN32
#define EMULATE_INTTYPES
#endif /* WIN32 */
#include "include/aegisub/video_provider.h"
#include "include/aegisub/aegisub.h"
#include "dialog_progress.h"
#include "vfr.h"
extern "C" {
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libswscale/swscale.h>
}
#include <vector>
#include <ffms.h>
///////////////////////
// FFmpegSource provider
class FFmpegSourceVideoProvider : public VideoProvider {
private:
VideoBase *VideoSource;
const VideoProperties *VideoInfo;
SwsContext *SWSContext;
int FrameNumber;
wxArrayInt KeyFramesList;
bool KeyFramesLoaded;
std::vector<int> TimecodesVector;
FrameRate Timecodes;
AVPicture FrameRGB;
bool FrameAllocated;
uint8_t *BufferRGB;
AegiVideoFrame CurFrame;
char FFMSErrorMessage[1024];
unsigned MessageSize;
wxString ErrorMsg;
struct IndexingProgressDialog {
volatile bool IndexingCanceled;
DialogProgress *ProgressDialog;
};
void LoadVideo(Aegisub::String filename, double fps);
void Close();
static int __stdcall FFmpegSourceVideoProvider::UpdateIndexingProgress(int State, int64_t Current, int64_t Total, void *Private);
protected:
public:
FFmpegSourceVideoProvider(Aegisub::String filename, double fps);
~FFmpegSourceVideoProvider();
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 true; };
FrameRate GetTrueFrameRate() { return Timecodes; };
Aegisub::String GetDecoderName() { return L"FFmpegSource"; }
bool IsNativelyByFrames() { return true; }
int GetDesiredCacheSize() { return 8; }
};
///////////
// Factory
class FFmpegSourceVideoProviderFactory : public VideoProviderFactory {
public:
VideoProvider *CreateProvider(Aegisub::String video,double fps=0.0) { return new FFmpegSourceVideoProvider(video,fps); }
};
#endif /* WITH_FFMPEGSOURCE */