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Diffstat (limited to 'source/gameengine/VideoTexture/VideoFFmpeg.h')
-rw-r--r-- | source/gameengine/VideoTexture/VideoFFmpeg.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/source/gameengine/VideoTexture/VideoFFmpeg.h b/source/gameengine/VideoTexture/VideoFFmpeg.h new file mode 100644 index 00000000000..7980e06686c --- /dev/null +++ b/source/gameengine/VideoTexture/VideoFFmpeg.h @@ -0,0 +1,159 @@ +/* $Id$ +----------------------------------------------------------------------------- +This source file is part of VideoTexture library + +Copyright (c) 2007 The Zdeno Ash Miklas + +This program is free software; you can redistribute it and/or modify it under +the terms of the GNU Lesser General Public License as published by the Free Software +Foundation; either version 2 of the License, or (at your option) any later +version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along with +this program; if not, write to the Free Software Foundation, Inc., 59 Temple +Place - Suite 330, Boston, MA 02111-1307, USA, or go to +http://www.gnu.org/copyleft/lesser.txt. +----------------------------------------------------------------------------- +*/ +#if !defined VIDEOFFMPEG_H +#define VIDEOFFMPEG_H + +#ifdef WITH_FFMPEG +extern "C" { +#include <ffmpeg/avformat.h> +#include <ffmpeg/avcodec.h> +#include <ffmpeg/rational.h> +#include <ffmpeg/swscale.h> +} + +#if LIBAVFORMAT_VERSION_INT < (49 << 16) +#define FFMPEG_OLD_FRAME_RATE 1 +#else +#define FFMPEG_CODEC_IS_POINTER 1 +#endif + +#ifdef FFMPEG_CODEC_IS_POINTER +static inline AVCodecContext* get_codec_from_stream(AVStream* stream) +{ + return stream->codec; +} +#else +static inline AVCodecContext* get_codec_from_stream(AVStream* stream) +{ + return &stream->codec; +} +#endif + +#include "VideoBase.h" + + +// type VideoFFmpeg declaration +class VideoFFmpeg : public VideoBase +{ +public: + /// constructor + VideoFFmpeg (HRESULT * hRslt); + /// destructor + virtual ~VideoFFmpeg (); + + /// set initial parameters + void initParams (short width, short height, float rate); + /// open video file + virtual void openFile (char * file); + /// open video capture device + virtual void openCam (char * driver, short camIdx); + + /// release video source + virtual bool release (void); + + /// play video + virtual bool play (void); + /// stop/pause video + virtual bool stop (void); + + /// set play range + virtual void setRange (double start, double stop); + /// set frame rate + virtual void setFrameRate (float rate); + // some specific getters and setters + int getPreseek(void) { return m_preseek; } + void setPreseek(int preseek) { if (preseek >= 0) m_preseek = preseek; } + bool getDeinterlace(void) { return m_deinterlace; } + void setDeinterlace(bool deinterlace) { m_deinterlace = deinterlace; } + +protected: + + // format and codec information + AVCodec *m_codec; + AVFormatContext *m_formatCtx; + AVCodecContext *m_codecCtx; + // raw frame extracted from video file + AVFrame *m_frame; + // deinterlaced frame if codec requires it + AVFrame *m_frameDeinterlaced; + // decoded RGB24 frame if codec requires it + AVFrame *m_frameBGR; + // conversion from raw to RGB is done with sws_scale + struct SwsContext *m_imgConvertCtx; + // should the codec be deinterlaced? + bool m_deinterlace; + // number of frame of preseek + int m_preseek; + // order number of stream holding the video in format context + int m_videoStream; + + // the actual frame rate + double m_baseFrameRate; + + /// last displayed frame + long m_lastFrame; + + /// current file pointer position in file expressed in frame number + long m_curPosition; + + /// time of video play start + double m_startTime; + + /// width of capture in pixel + short m_captWidth; + + /// height of capture in pixel + short m_captHeight; + + /// frame rate of capture in frames per seconds + float m_captRate; + + /// image calculation + virtual void calcImage (unsigned int texId); + + /// load frame from video + void loadFrame (void); + + /// set actual position + void setPositions (void); + + /// get actual framerate + double actFrameRate (void) { return m_frameRate * m_baseFrameRate; } + + /// common function to video file and capture + int openStream(const char *filename, AVInputFormat *inputFormat, AVFormatParameters *formatParams); + + /// check if a frame is available and load it in pFrame, return true if a frame could be retrieved + bool grabFrame(long frame); + + /// return the frame in RGB24 format, the image data is found in AVFrame.data[0] + AVFrame* getFrame(void) { return m_frameBGR; } +}; + +inline VideoFFmpeg * getFFmpeg (PyImage * self) +{ + return static_cast<VideoFFmpeg*>(self->m_image); +} + +#endif //WITH_FFMPEG + +#endif |