OStreamVideoDecoder.hh

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/*
 *  Copyright (C) Massimo Cora' 2006 <maxcvs@email.it>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU 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 Library General Public License for more details.
 *
 *  You should have received a copy of the GNU 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.
 */

#ifndef _OSTREAMVIDEODECODER_H_
#define _OSTREAMVIDEODECODER_H_

#include <cv.h>
#include <highgui.h>
#include <ffmpeg/avcodec.h>
#include <ffmpeg/avformat.h>

#include "OStreamConfig.hh"

class OStreamVideoDecoder
{
public:
        OStreamVideoDecoder( unsigned int io_buf_size, ostream_decoding_type decoding_type,
                                                 int fps = 25,
                                                 PixelFormat opencv_pix_fmt = PIX_FMT_BGR24 );

        virtual ~OStreamVideoDecoder();

        IplImage* decode_video_frame( unsigned char* buf, int buf_size );

private:                // functions
        bool decoder_initialize ();
        
        AVFrame* create_avframe( int pixel_format, int frame_width, int frame_height );

private:                // data
        bool _initialized;
        
        unsigned char* _internal_buffer;
        int _internal_buffer_size;
        
        int _decoding_type;
        
        int _fps;
        
        AVCodec *_codec_decode;
        
        AVCodecContext *_codec_context;
        
        AVFrame *_decoded_frame;
        
        AVFrame *_opencv_ready_frame;
        
        PixelFormat _opencv_pix_fmt;
};


#endif  //_OSTREAMVIDEODECODER_H_

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