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
89
90
91
92
93
|
/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_AUDIO_IN_H
#define MPLAYER_AUDIO_IN_H
#define AUDIO_IN_ALSA 1
#define AUDIO_IN_OSS 2
#include "config.h"
#ifdef CONFIG_ALSA
#include <alsa/asoundlib.h>
typedef struct {
char *device;
snd_pcm_t *handle;
snd_output_t *log;
int buffer_time, period_time, chunk_size;
size_t bits_per_sample, bits_per_frame;
} ai_alsa_t;
#endif
#ifdef CONFIG_OSS_AUDIO
typedef struct {
char *device;
int audio_fd;
} ai_oss_t;
#endif
typedef struct
{
int type;
int setup;
/* requested values */
int req_channels;
int req_samplerate;
/* real values read-only */
int channels;
int samplerate;
int blocksize;
int bytes_per_sample;
int samplesize;
#ifdef CONFIG_ALSA
ai_alsa_t alsa;
#endif
#ifdef CONFIG_OSS_AUDIO
ai_oss_t oss;
#endif
} audio_in_t;
int audio_in_init(audio_in_t *ai, int type);
int audio_in_setup(audio_in_t *ai);
int audio_in_set_device(audio_in_t *ai, char *device);
int audio_in_set_samplerate(audio_in_t *ai, int rate);
int audio_in_set_channels(audio_in_t *ai, int channels);
int audio_in_uninit(audio_in_t *ai);
int audio_in_start_capture(audio_in_t *ai);
int audio_in_read_chunk(audio_in_t *ai, unsigned char *buffer);
#ifdef CONFIG_ALSA
int ai_alsa_setup(audio_in_t *ai);
int ai_alsa_init(audio_in_t *ai);
int ai_alsa_xrun(audio_in_t *ai);
#endif
#ifdef CONFIG_OSS_AUDIO
int ai_oss_set_samplerate(audio_in_t *ai);
int ai_oss_set_channels(audio_in_t *ai);
int ai_oss_init(audio_in_t *ai);
#endif
#endif /* MPLAYER_AUDIO_IN_H */
|
