80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// Copyright (c) 2008-2009, Karl Blomster <thefluff@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// $Id$
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/// @file ffms_video.h
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/// @brief FFmpegSource Video support.
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/// @ingroup fmms video
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#ifndef AGI_PRE
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#include <vector>
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#endif
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#include <libaegisub/exception.h>
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#include "../../libffms/include/ffms.h"
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#include "libaegisub/vfr.h"
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#include "../common/ffms_common.h"
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#include "libmedia/video.h"
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namespace media {
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namespace ffms {
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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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std::vector<int> KeyFramesList; /// list of keyframes
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agi::vfr::Framerate Timecodes; /// vfr object
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bool COMInited; /// COM initialization state
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media::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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void LoadVideo(std::string filename);
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void Close();
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public:
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FFmpegSourceVideoProvider(std::string filename);
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~FFmpegSourceVideoProvider();
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const media::AegiVideoFrame GetFrame(int n);
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int GetPosition() const { return FrameNumber; }
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int GetFrameCount() const { return VideoInfo->NumFrames; }
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int GetWidth() const { return Width; }
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int GetHeight() const { return Height; }
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agi::vfr::Framerate GetFPS() const { return Timecodes; }
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/// @brief Gets a list of keyframes
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/// @return Returns a vector<int> of keyframes.
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std::vector<int> GetKeyFrames() const { return KeyFramesList; };
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std::string GetDecoderName() const { return "FFmpegSource"; }
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/// @brief Gets the desired cache behavior.
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/// @return Returns true.
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bool WantsCaching() const { return true; }
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};
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} // namespace ffms
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} // namespace media
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