121 lines
4.2 KiB
C++
121 lines
4.2 KiB
C++
// Copyright (c) 2008-2009, Karl Blomster
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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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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file video_provider_ffmpegsource.h
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/// @see video_provider_ffmpegsource.cpp
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/// @ingroup video_input ffms
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///
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///////////
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// Headers
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#ifdef WITH_FFMPEGSOURCE
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#ifndef AGI_PRE
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#include <vector>
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#endif
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#include "ffmpegsource_common.h"
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#include "include/aegisub/video_provider.h"
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#include "vfr.h"
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/// @class FFmpegSourceVideoProvider
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/// @brief Implements video loading through the FFMS library.
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class FFmpegSourceVideoProvider : public VideoProvider, FFmpegSourceProvider {
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private:
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FFMS_VideoSource *VideoSource; /// video source object
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const FFMS_VideoProperties *VideoInfo; /// video properties
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int Width; /// width in pixels
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int Height; /// height in pixels
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int FrameNumber; /// current framenumber
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wxArrayInt KeyFramesList; /// list of keyframes
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bool KeyFramesLoaded; /// keyframe loading state
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std::vector<int> TimecodesVector; /// list of timestamps
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FrameRate Timecodes; /// vfr object
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bool COMInited; /// COM initialization state
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AegiVideoFrame CurFrame; /// current video frame
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char FFMSErrMsg[1024]; /// FFMS error message
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FFMS_ErrorInfo ErrInfo; /// FFMS error codes/messages
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wxString ErrorMsg; /// wx-ified error message
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void LoadVideo(wxString filename);
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void Close();
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public:
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FFmpegSourceVideoProvider(wxString filename);
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~FFmpegSourceVideoProvider();
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const AegiVideoFrame GetFrame(int n);
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int GetPosition();
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int GetFrameCount();
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int GetWidth();
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int GetHeight();
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double GetFPS();
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/// @brief Reports keyframe status
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/// @return Returns true if keyframes are loaded, false otherwise.
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bool AreKeyFramesLoaded() { return KeyFramesLoaded; };
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/// @brief Gets a list of keyframes
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/// @return Returns a wxArrayInt of keyframes.
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wxArrayInt GetKeyFrames() { return KeyFramesList; };
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/// @brief Checks if source is VFR
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/// @return Returns true.
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bool IsVFR() { return true; };
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/// @brief Gets a VFR framerate object
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/// @return Returns the framerate object.
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FrameRate GetTrueFrameRate() { return Timecodes; };
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/// @brief Gets the name of the provider
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/// @return Returns "FFmpegSource".
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wxString GetDecoderName() { return L"FFmpegSource"; }
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/// @brief Gets the desired cache behavior.
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/// @return Returns true.
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bool WantsCaching() { return true; }
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};
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/// @class FFmpegSourceVideoProviderFactory
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/// @brief Creates a FFmpegSource video provider.
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class FFmpegSourceVideoProviderFactory : public VideoProviderFactory {
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public:
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/// @brief Creates a FFmpegSource video provider.
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/// @param video The video filename to open.
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/// @return Returns the video provider.
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VideoProvider *CreateProvider(wxString video) { return new FFmpegSourceVideoProvider(video); }
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};
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#endif /* WITH_FFMPEGSOURCE */
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