mpeglistener.h

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2004 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card, but now handles other
// hardware as well.

// 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 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 MPEG_MPEGLISTENER_H
#define MPEG_MPEGLISTENER_H
//------------------------------------------------------------------------------

namespace mpeg {

//------------------------------------------------------------------------------

class SequenceHeader;
class PictureHeader;
class GOPHeader;
class QuantMatrix;

//------------------------------------------------------------------------------

/**
 * Interface for listeners to the MPEG parser.
 */
class MPEGListener
{
public:
    /**
     * Virtual destructor.
     */
    virtual ~MPEGListener() {}

    /**
     * Called when some PTS information is received from the current
     * packet.
     */
    virtual void ptsReceived(pts_t pts) = 0;

    /**
     * Called when a sequence header is received.
     */
    virtual void sequence(const SequenceHeader& header) = 0;

    /**
     * Called when a quantization matrix is received.
     */
    virtual void quantMatrix(const QuantMatrix& quantMatrix) = 0;

    /**
     * Called when a group of pictures header is received.
     */
    virtual void groupOfPictures(const GOPHeader& header) = 0;

    /**
     * Called when a picture header is received.
     */
    virtual void picture(const PictureHeader& header) = 0;
    
    /**
     * Called when a slice is received.
     */
    virtual void slice(const unsigned char* data, size_t length) = 0;
    
    /**
     * Called when a picture has been completely received.
     */
    virtual void endPicture() = 0;

    /**
     * Called when a sequence has ended.
     */
    virtual void endSequence() = 0;
};

//------------------------------------------------------------------------------

} /* namespace mpeg */

//------------------------------------------------------------------------------
#endif // MPEG_MPEGLISTENER_H

// Local variables:
// mode: c++
// End: