forked from mia/Aegisub
893ff2f78a
- It is now the responsibility of each video provider to provide a list of keyframe positions and (if it can) timecodes. - The ffmpeg video provider now indexes files before opening them and does no longer rely on stream->duration to determine the number of frames. Fixes opening of MKV files, but it does not (currently) open timecodes automatically and reported keyframe positions seem way off. Status of frame-accuracy with MKV files unknown but it may very well work. - Modified the way the ffmpeg video provider seeks (inspired by code from Myrsloik's ffmpegsource). Should no longer lose the first frame and should also no longer be frame-inaccurate, at least not with AVI. - DirectShow video provider may or may not be completely broken, not tested. Originally committed to SVN as r2252.
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
// Copyright (c) 2006, Fredrik Mellbin
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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///////////
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// Headers
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#include <wx/wxprec.h>
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#ifdef WITH_AVISYNTH
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#include "avisynth_wrap.h"
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#include "include/aegisub/video_provider.h"
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#include "include/aegisub/subtitles_provider.h"
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////////////
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// Provider
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class AvisynthVideoProvider: public VideoProvider, SubtitlesProvider, AviSynthWrapper {
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private:
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VideoInfo vi;
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AegiVideoFrame iframe;
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bool usedDirectShow;
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Aegisub::String rendererCallString;
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Aegisub::String decoderName;
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int num_frames;
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int last_fnum;
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double fps;
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wxArrayInt frameTime;
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bool byFrame;
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wxArrayInt KeyFrames;
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bool keyFramesLoaded;
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bool isVfr;
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FrameRate trueFrameRate;
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PClip RGB32Video;
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PClip SubtitledVideo;
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PClip OpenVideo(Aegisub::String _filename, bool mpeg2dec3_priority = true);
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PClip ApplySubtitles(Aegisub::String _filename, PClip videosource);
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void LoadVSFilter();
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void LoadASA();
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void LoadRenderer();
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public:
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AvisynthVideoProvider(Aegisub::String _filename, double fps=0.0);
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~AvisynthVideoProvider();
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SubtitlesProvider *GetAsSubtitlesProvider();
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void LoadSubtitles(AssFile *subs);
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bool LockedToVideo() { return true; }
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const AegiVideoFrame GetFrame(int n,int formatMask);
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void GetFloatFrame(float* Buffer, int n);
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// properties
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int GetPosition() { return last_fnum; };
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int GetFrameCount() { return num_frames? num_frames: vi.num_frames; };
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double GetFPS() { return (double)vi.fps_numerator/(double)vi.fps_denominator; };
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int GetWidth() { return vi.width; };
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int GetHeight() { return vi.height; };
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bool AreKeyFramesLoaded() { return keyFramesLoaded; };
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wxArrayInt GetKeyFrames() { return KeyFrames; };
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bool IsVFR() { return isVfr; };
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FrameRate GetTrueFrameRate() { return isVfr? trueFrameRate: FrameRate(); };
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void OverrideFrameTimeList(wxArrayInt list);
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bool IsNativelyByFrames() { return byFrame; }
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Aegisub::String GetWarning();
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Aegisub::String GetDecoderName() { return Aegisub::String(L"Avisynth/") + decoderName; }
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};
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///////////
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// Factory
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class AvisynthVideoProviderFactory : public VideoProviderFactory {
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public:
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VideoProvider *CreateProvider(Aegisub::String video,double fps=0.0) { return new AvisynthVideoProvider(video,fps); }
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};
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#endif
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