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/*
* 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 <vdr/ringbuffer.h>
#include "dxr3multichannelaudio.h"
#include "uncopyable.h"
class cDxr3PesFrame;
class iAudio;
// ==================================
// decode audio to mp2 or use DD :)
class cDxr3AudioDecoder : private Uncopyable {
public:
cDxr3AudioDecoder();
~cDxr3AudioDecoder();
void decode(cDxr3PesFrame *frame, iAudio *audio);
void ac3dts(cDxr3PesFrame *frame, iAudio *audio);
/*
void DecodeLpcm(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:
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