1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/*
* dxr3audiodecoder.h
*
* Copyright (C) 2002-2004 Kai Möller
* Copyright (C) 2004 Christian Gmeiner
*
* This program 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 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 Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef _DXR3_AUDIODECODER_H_
#define _DXR3_AUDIODECODER_H_
#include <stdlib.h>
#include <stdint.h>
extern "C" {
# include <libavcodec/avcodec.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 Init();
void Decode(cDxr3PesFrame *frame, uint32_t pts, cDxr3SyncBuffer &aBuf);
void DecodeLpcm(cDxr3PesFrame *frame, uint32_t pts, cDxr3SyncBuffer &aBuf);
void DecodeAc3Dts(const uint8_t* pPes, const uint8_t* buf, int length,
uint32_t pts, cDxr3SyncBuffer &aBuf);
int GetRate() const { return rate; }
int GetChannelCount() const { return channels; }
void Reset()
{
ac3dtsDecoder.Clear();
rbuf.Clear();
}
private:
bool HeadCheck(unsigned long head);
AVCodec *audio;
AVCodecContext *contextAudio;
cRingBufferFrame rbuf;
cMultichannelAudio ac3dtsDecoder;
bool audioSynched;
bool foundHeader;
bool decodeAudio;
int rate;
int channels;
uint8_t lastHeader[4];
uint8_t pcmbuf[AVCODEC_MAX_AUDIO_FRAME_SIZE];
};
#endif /*_DXR3_AUDIODECODER_H_*/
// Local variables:
// mode: c++
// c-file-style: "stroustrup"
// c-file-offsets: ((inline-open . 0))
// indent-tabs-mode: t
// End:
|
