/*
 * dxr3audiodecoder.h
 *
 * Copyright (C) 2002-2004 Kai Möller
 * Copyright (C) 2004 Christian Gmeiner
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 */

#ifndef _DXR3_AUDIODECODER_H_
#define _DXR3_AUDIODECODER_H_

extern "C" {
#    include <libavcodec/avcodec.h>
#    include <libavformat/avformat.h>
}

#include "dxr3syncbuffer.h"
#include "dxr3multichannelaudio.h"
#include "uncopyable.h"

class cDxr3PesFrame;

// ==================================
// decode audio to mp2 or use DD :)
class cDxr3AudioDecoder : private Uncopyable {
public:
    cDxr3AudioDecoder();
    ~cDxr3AudioDecoder();

    void Decode(cDxr3PesFrame *frame, uint32_t pts, cDxr3SyncBuffer &aBuf);
    void DecodeLpcm(cDxr3PesFrame *frame, uint32_t pts, cDxr3SyncBuffer &aBuf);
    void DecodeAc3Dts(cDxr3PesFrame *frame, uint32_t pts, cDxr3SyncBuffer &aBuf);

    void Reset()
    {
    	ac3dtsDecoder.Clear();
    	rbuf.Clear();
    }

private:
    bool checkMpegAudioHdr(const uint8_t *head);
    int calcFrameSize(const uint8_t *header);

    AVCodec *audio;
    AVCodecContext *contextAudio;
    AVPacket avpkt;

    cRingBufferFrame rbuf;
    cMultichannelAudio ac3dtsDecoder;

    int frameSize;
    uint8_t lastBitrate;
    uint8_t pcmbuf[AVCODEC_MAX_AUDIO_FRAME_SIZE];

    void Init();
};

#endif /*_DXR3_AUDIODECODER_H_*/

// Local variables:
// mode: c++
// c-file-style: "stroustrup"
// c-file-offsets: ((inline-open . 0))
// tab-width: 4;
// indent-tabs-mode: nil
// End: