FFmpeg
libavdevice
oss.h
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVDEVICE_OSS_H
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#define AVDEVICE_OSS_H
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#include <stdint.h>
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#include "
libavutil/log.h
"
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#include "
libavcodec/codec_id.h
"
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#include "
libavformat/avformat.h
"
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#define OSS_AUDIO_BLOCK_SIZE 4096
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typedef
struct
OSSAudioData
{
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AVClass
*
class
;
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int
fd
;
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int
sample_rate
;
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int
sample_size
;
/* in bytes ! */
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int
channels
;
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int
frame_size
;
/* in bytes ! */
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enum
AVCodecID
codec_id
;
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unsigned
int
flip_left
: 1;
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uint8_t
buffer
[
OSS_AUDIO_BLOCK_SIZE
];
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int
buffer_ptr
;
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}
OSSAudioData
;
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int
ff_oss_audio_open
(
AVFormatContext
*s1,
int
is_output,
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const
char
*audio_device);
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int
ff_oss_audio_close
(
OSSAudioData
*
s
);
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#endif
/* AVDEVICE_OSS_H */
ff_oss_audio_open
int ff_oss_audio_open(AVFormatContext *s1, int is_output, const char *audio_device)
Definition:
oss.c:40
codec_id.h
s
#define s(width, name)
Definition:
cbs_vp9.c:198
OSSAudioData::sample_size
int sample_size
Definition:
oss.h:33
AVFormatContext
Format I/O context.
Definition:
avformat.h:1260
OSSAudioData::channels
int channels
Definition:
oss.h:34
AVClass
Describe the class of an AVClass context structure.
Definition:
log.h:66
OSSAudioData::buffer_ptr
int buffer_ptr
Definition:
oss.h:39
OSSAudioData::codec_id
enum AVCodecID codec_id
Definition:
oss.h:36
OSSAudioData::buffer
uint8_t buffer[OSS_AUDIO_BLOCK_SIZE]
Definition:
oss.h:38
OSS_AUDIO_BLOCK_SIZE
#define OSS_AUDIO_BLOCK_SIZE
Definition:
oss.h:27
OSSAudioData
Definition:
oss.h:29
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition:
codec_id.h:49
log.h
OSSAudioData::frame_size
int frame_size
Definition:
oss.h:35
avformat.h
ff_oss_audio_close
int ff_oss_audio_close(OSSAudioData *s)
Definition:
oss.c:137
OSSAudioData::sample_rate
int sample_rate
Definition:
oss.h:32
OSSAudioData::fd
int fd
Definition:
oss.h:31
OSSAudioData::flip_left
unsigned int flip_left
Definition:
oss.h:37
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