libavdevice/oss_audio.c File Reference

#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <sys/soundcard.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/select.h>
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavformat/internal.h"

Go to the source code of this file.

Data Structures
struct	AudioData
Defines
#define	AUDIO_BLOCK_SIZE   4096
Functions
static int	audio_open (AVFormatContext *s1, int is_output, const char *audio_device)
static int	audio_close (AudioData *s)
static int	audio_write_header (AVFormatContext *s1)
static int	audio_write_packet (AVFormatContext *s1, AVPacket *pkt)
static int	audio_write_trailer (AVFormatContext *s1)
static int	audio_read_header (AVFormatContext *s1, AVFormatParameters *ap)
static int	audio_read_packet (AVFormatContext *s1, AVPacket *pkt)
static int	audio_read_close (AVFormatContext *s1)
Variables
static const AVOption	options []
static const AVClass	oss_demuxer_class
AVInputFormat	ff_oss_demuxer
AVOutputFormat	ff_oss_muxer

---

Define Documentation

#define AUDIO_BLOCK_SIZE   4096

Definition at line 45 of file oss_audio.c.

Referenced by audio_write_packet().

---

Function Documentation

static int audio_close

(

AudioData *

s

)

[static]

Definition at line 146 of file oss_audio.c.

Referenced by audio_read_close(), and audio_write_trailer().

static int audio_open	(	AVFormatContext *	s1,
		int	is_output,
		const char *	audio_device
	)			[static]

Definition at line 59 of file oss_audio.c.

Referenced by audio_read_header(), and audio_write_header().

static int audio_read_close

(

AVFormatContext *

s1

)

[static]

Definition at line 276 of file oss_audio.c.

static int audio_read_header	(	AVFormatContext *	s1,
		AVFormatParameters *	ap
	)			[static]

Definition at line 207 of file oss_audio.c.

static int audio_read_packet	(	AVFormatContext *	s1,
		AVPacket *	pkt
	)			[static]

Definition at line 233 of file oss_audio.c.

static int audio_write_header

(

AVFormatContext *

s1

)

[static]

Definition at line 153 of file oss_audio.c.

static int audio_write_packet	(	AVFormatContext *	s1,
		AVPacket *	pkt
	)			[static]

Definition at line 170 of file oss_audio.c.

static int audio_write_trailer

(

AVFormatContext *

s1

)

[static]

Definition at line 197 of file oss_audio.c.

---

Variable Documentation

AVInputFormat ff_oss_demuxer

Initial value:

 {
    .name           = "oss",
    .long_name      = NULL_IF_CONFIG_SMALL("Open Sound System capture"),
    .priv_data_size = sizeof(AudioData),
    .read_header    = audio_read_header,
    .read_packet    = audio_read_packet,
    .read_close     = audio_read_close,
    .flags          = AVFMT_NOFILE,
    .priv_class     = &oss_demuxer_class,
}

Definition at line 298 of file oss_audio.c.

AVOutputFormat ff_oss_muxer

Initial value:

 {
    .name           = "oss",
    .long_name      = NULL_IF_CONFIG_SMALL("Open Sound System playback"),
    .priv_data_size = sizeof(AudioData),
    
    
    .audio_codec    = AV_NE(CODEC_ID_PCM_S16BE, CODEC_ID_PCM_S16LE),
    .video_codec    = CODEC_ID_NONE,
    .write_header   = audio_write_header,
    .write_packet   = audio_write_packet,
    .write_trailer  = audio_write_trailer,
    .flags          = AVFMT_NOFILE,
}

Definition at line 311 of file oss_audio.c.

const AVOption options[] [static]

Initial value:

 {
    { "sample_rate", "", 0x42, AV_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
    { "channels",    "", 0x42,    AV_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
    { NULL },
}

Definition at line 285 of file oss_audio.c.

const AVClass oss_demuxer_class [static]

Initial value:

 {
    .class_name     = "OSS demuxer",
    .item_name      = av_default_item_name,
    .option         = options,
    .version        = LIBAVUTIL_VERSION_INT,
}

Definition at line 291 of file oss_audio.c.