audiodecoder.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 89 行

//
// 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.

// 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 OUTPUT_AUDIODECODER_H
#define OUTPUT_AUDIODECODER_H
//------------------------------------------------------------------------------

#include "types.h"

#include <cstdlib>

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

namespace output {

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

class AudioProcessor;

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

/**
 * Abstract base class for decoders of audio data.
 */
class AudioDecoder
{
protected:
    /**
     * The address of the audio processor the decoder belongs to.
     */
    AudioProcessor& audioProcessor;

protected:
    /**
     * Construct the decoder with the given processor.
     */
    AudioDecoder(AudioProcessor& audioProcessor);

public:
    /**
     * Reset the decoder.
     */
    virtual void reset() = 0;

    /**
     * Decode the given data packet. Output any resulting packets
     * through the audio processor.
     */
    virtual void decodePacket(const unsigned char* data,
                              size_t length, pts_t packetPTS) = 0;
};

//------------------------------------------------------------------------------
// Inline definitions
//------------------------------------------------------------------------------

inline AudioDecoder::AudioDecoder(AudioProcessor& audioProcessor) :
    audioProcessor(audioProcessor)
{
}

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

} /* namespace output */

//------------------------------------------------------------------------------
#endif // OUTPUT_AUDIODECODER_H

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