FfmpegFrame.H

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00001 /*!@file Video/FfmpegFrame.H Conversions between ffmpeg's AVFrame and our VideoFrame */
00002 
00003 // //////////////////////////////////////////////////////////////////// //
00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2005   //
00005 // by the University of Southern California (USC) and the iLab at USC.  //
00006 // See http://iLab.usc.edu for information about this project.          //
00007 // //////////////////////////////////////////////////////////////////// //
00008 // Major portions of the iLab Neuromorphic Vision Toolkit are protected //
00009 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency //
00010 // in Visual Environments, and Applications'' by Christof Koch and      //
00011 // Laurent Itti, California Institute of Technology, 2001 (patent       //
00012 // pending; application number 09/912,225 filed July 23, 2001; see      //
00013 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status).     //
00014 // //////////////////////////////////////////////////////////////////// //
00015 // This file is part of the iLab Neuromorphic Vision C++ Toolkit.       //
00016 //                                                                      //
00017 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can   //
00018 // redistribute it and/or modify it under the terms of the GNU General  //
00019 // Public License as published by the Free Software Foundation; either  //
00020 // version 2 of the License, or (at your option) any later version.     //
00021 //                                                                      //
00022 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope  //
00023 // that it will be useful, but WITHOUT ANY WARRANTY; without even the   //
00024 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      //
00025 // PURPOSE.  See the GNU General Public License for more details.       //
00026 //                                                                      //
00027 // You should have received a copy of the GNU General Public License    //
00028 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write   //
00029 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,   //
00030 // Boston, MA 02111-1307 USA.                                           //
00031 // //////////////////////////////////////////////////////////////////// //
00032 //
00033 // Primary maintainer for this file: Rob Peters <rjpeters at usc dot edu>
00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Video/FfmpegFrame.H $
00035 // $Id: FfmpegFrame.H 12785 2010-02-06 02:24:05Z irock $
00036 //
00037 
00038 #ifndef VIDEO_FFMPEGFRAME_H_DEFINED
00039 #define VIDEO_FFMPEGFRAME_H_DEFINED
00040 
00041 #ifdef INVT_HAVE_AVCODEC
00042 
00043 #include "Util/Types.H" // for byte
00044 #include "Video/VideoFormat.H"
00045 
00046 #define attribute_deprecated
00047 extern "C"
00048 {
00049 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
00050 #include <libavcodec/avcodec.h>
00051 #else
00052 #include <ffmpeg/avcodec.h>
00053 #endif
00054 
00055 }
00056 
00057 class Dims;
00058 class VideoFrame;
00059 template <class T> class Image;
00060 template <class T> class PixRGB;
00061 
00062 /// Get the VideoFormat enum that corresponds to ffmpeg's PixelFormat enum
00063 VideoFormat convertAVPixelFormatToVideoFormat(const PixelFormat fmt);
00064 
00065 /// Make a VideoFrame from an AVFrame from ffmpeg.
00066 /** The returned VideoFrame object will contain a private copy of the
00067     data from the AVFrame, so it is safe to reuse or discard the
00068     AVFrame object after calling this function. */
00069 VideoFrame convertAVFrameToVideoFrame(const AVFrame* pic,
00070                                       const PixelFormat fmt,
00071                                       const Dims& dims);
00072 
00073 /// Make a color Image from an AVFrame from ffmpeg.
00074 Image<PixRGB<byte> > convertAVFrameToRGB(const AVFrame* pic,
00075                                          const PixelFormat fmt,
00076                                          const Dims& dims);
00077 
00078 /// Fill an ffmpeg AVFrame from a VideoFrame
00079 /** Returns true if there was a successful conversion, false otherwise
00080     -- conversion can fail if vidframe.getMode() doesn't match the
00081     requested PixelFormat; in that case your best bet is to just
00082     convert the VideoFrame to RGB with vidframe.toRgb() and then do
00083     your work in RGB mode instead. */
00084 bool convertVideoFrameToAVFrame(const VideoFrame& vidframe,
00085                                 const PixelFormat fmt,
00086                                 AVFrame* pic);
00087 
00088 //! Conversion from ffmpeg's PixelFormat enum to string
00089 std::string convertToString(const PixelFormat fmt);
00090 
00091 #endif // HAVE_FFMPEG_AVCODEC_H
00092 
00093 // ######################################################################
00094 /* So things look consistent in everyone's emacs... */
00095 /* Local Variables: */
00096 /* mode: c++ */
00097 /* indent-tabs-mode: nil */
00098 /* End: */
00099 
00100 #endif // VIDEO_FFMPEGFRAME_H_DEFINED
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