audiotoolbox.m File Reference

AudioToolbox output device. More...

import <AudioToolbox/AudioToolbox.h>
#include <pthread.h>
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavformat/internal.h"
#include "libavformat/mux.h"
#include "libavutil/internal.h"
#include "avdevice.h"

Go to the source code of this file.

Data Structures
struct	ATContext

Functions
static int	check_status (AVFormatContext *avctx, OSStatus *status, const char *msg)
static void	queue_callback (void *atctx, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer)
static av_cold int	at_write_header (AVFormatContext *avctx)
static int	at_write_packet (AVFormatContext *avctx, AVPacket *pkt)
static av_cold int	at_write_trailer (AVFormatContext *avctx)

Variables
static const AVOption	options []
static const AVClass	at_class
const FFOutputFormat	ff_audiotoolbox_muxer

Detailed Description

AudioToolbox output device.

Author

Thilo Borgmann thilo.nosp@m..bor.nosp@m.gmann.nosp@m.@mai.nosp@m.l.de

Definition in file audiotoolbox.m.

Function Documentation

check_status()

static int check_status ( AVFormatContext * avctx, OSStatus * status, const char * msg )

static

Definition at line 52 of file audiotoolbox.m.

Referenced by at_write_header(), at_write_packet(), and at_write_trailer().

queue_callback()

static void queue_callback ( void * atctx, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer )

static

Definition at line 63 of file audiotoolbox.m.

Referenced by at_write_header().

at_write_header()

static av_cold int at_write_header ( AVFormatContext * avctx )

static

Definition at line 75 of file audiotoolbox.m.

at_write_packet()

static int at_write_packet ( AVFormatContext * avctx, AVPacket * pkt )

static

Definition at line 238 of file audiotoolbox.m.

at_write_trailer()

static av_cold int at_write_trailer ( AVFormatContext * avctx )

static

Definition at line 273 of file audiotoolbox.m.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "list_devices", "list available audio devices",  0x42 , AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM },
    { "audio_device_index", "select audio device by index (starts at 0)",  0x42 , AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
    { NULL },
}

Definition at line 289 of file audiotoolbox.m.

at_class

const AVClass at_class

static

Initial value:

= {
    .class_name = "AudioToolbox",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
    .category   = AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
}

Definition at line 295 of file audiotoolbox.m.

ff_audiotoolbox_muxer

const FFOutputFormat ff_audiotoolbox_muxer

Initial value:

= {
    .p.name         = "audiotoolbox",
    .p.long_name    = NULL_IF_CONFIG_SMALL("AudioToolbox output device"),
    .priv_data_size = sizeof(ATContext),
    .p.audio_codec  = AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE),
    .p.video_codec  = AV_CODEC_ID_NONE,
    .write_header   = at_write_header,
    .write_packet   = at_write_packet,
    .write_trailer  = at_write_trailer,
    .p.flags        = AVFMT_NOFILE,
    .p.priv_class   = &at_class,
}

Definition at line 303 of file audiotoolbox.m.