sectordemultiplexer.h

来自「Linux下比较早的基于命令行的DVD播放器」· C头文件 代码 · 共 171 行

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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 DXR3PLAYER_DVD_DEMUX_SECTORDEMULTIPLEXER_H
#define DXR3PLAYER_DVD_DEMUX_SECTORDEMULTIPLEXER_H
//------------------------------------------------------------------------------

namespace dvd { namespace demux {

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

class StreamProcessor;
class Sector;
class SectorBitReader;

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

/**
 * Demultiplexer for sectors.
 */
class SectorDemultiplexer
{
private:
    /**
     * PES ID: pack header
     */
    static const unsigned char PESID_PACK_HEADER      = 0xba;

    /**
     * PES ID: system header
     */
    static const unsigned char PESID_SYSTEM_HEADER    = 0xbb;

    /**
     * PES ID: private stream 1
     */
    static const unsigned char PESID_PRIVATE1         = 0xbd;

    /**
     * PES ID: padding stream
     */
    static const unsigned char PESID_PADDING          = 0xbe;

    /**
     * PES ID: private stream 2
     */
    static const unsigned char PESID_PRIVATE2         = 0xbf;

    /**
     * PES ID: first MPEG audio stream
     */
    static const unsigned char PESID_MPEG_AUDIO_FIRST = 0xc0;

    /**
     * PES ID: last MPEG audio stream
     */
    static const unsigned char PESID_MPEG_AUDIO_LAST  = 0xdf;

    /**
     * PES ID: first MPEG video stream
     */
    static const unsigned char PESID_MPEG_VIDEO_FIRST = 0xe0;

    /**
     * PES ID: last MPEG video stream
     */
    static const unsigned char PESID_MPEG_VIDEO_LAST  = 0xef;

    /**
     * Private stream 2 substream ID: PCI packet
     */
    static const unsigned char PRIVATE2_PCI           = 0x00;

    /**
     * Private stream 2 substream ID: DSI packet
     */
    static const unsigned char PRIVATE2_DSI           = 0x01;

    /**
     * The stream processor to pass stream data to.
     */
    StreamProcessor& streamProcessor;

public:
    /**
     * Construct a sector demultiplexer with the given stream
     * processor.
     */
    SectorDemultiplexer(StreamProcessor& streamProcessor);

    /**
     * Demultiplex the given sector.
     */
    void demultiplex(const Sector& sector);

    /**
     * Demultiplex the given data block. It is assumed to have a
     * length of SECTOR_SIZE.
     */
    void demultiplex(const unsigned char* data);

    /**
     * Demultiplex the PES packet from the given reader
     */
    void demultiplexPESPacket(SectorBitReader& reader);
    
    /**
     * Demultiplex a pack header.
     */
    void demultiplexPackHeader(SectorBitReader& reader);
    
    /**
     * Demultiplex a system header.
     */
    void demultiplexSystemHeader(SectorBitReader& reader);

    /**
     * Demultiplex a private stream 1.
     */
    void demultiplexPrivate1(SectorBitReader& reader);

    /**
     * Demultiplex a padding stream.
     */
    void demultiplexPadding(SectorBitReader& reader);

    /**
     * Demultiplex a private stream 2.
     */
    void demultiplexPrivate2(SectorBitReader& reader);
    
    /**
     * Demultiplex an MPEG audio stream.
     */
    void demultiplexMPEGAudio(SectorBitReader& reader, unsigned char streamID);

    /**
     * Demultiplex an MPEG video stream.
     */
    void demultiplexMPEGVideo(SectorBitReader& reader, unsigned char streamID);
};

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

} /* namespace dvd::demux */ } /* namespace dvd */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_DVD_DEMUX_SECTORDEMULTIPLEXER_H

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