jack_audio.c File Reference

#include "config.h"
#include <semaphore.h>
#include <jack/jack.h>
#include "libavutil/log.h"
#include "libavutil/fifo.h"
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavformat/internal.h"
#include "timefilter.h"
#include "avdevice.h"

Go to the source code of this file.

Data Structures
struct	JackData

Macros
#define	FIFO_PACKETS_NUM   16
	Size of the internal FIFO buffers as a number of audio packets.
#define	OFFSET(x)   offsetof(JackData, x)

Functions
static int	process_callback (jack_nframes_t nframes, void *arg)
static void	shutdown_callback (void *arg)
static int	xrun_callback (void *arg)
static int	supply_new_packets (JackData *self, AVFormatContext *context)
static int	start_jack (AVFormatContext *context)
static void	free_pkt_fifo (AVFifoBuffer **fifo)
static void	stop_jack (JackData *self)
static int	audio_read_header (AVFormatContext *context)
static int	audio_read_packet (AVFormatContext *context, AVPacket *pkt)
static int	audio_read_close (AVFormatContext *context)

Variables
static const AVOption	options []
static const AVClass	jack_indev_class
AVInputFormat	ff_jack_demuxer

Macro Definition Documentation

#define FIFO_PACKETS_NUM   16

Size of the internal FIFO buffers as a number of audio packets.

Definition at line 40 of file jack_audio.c.

Referenced by start_jack().

#define OFFSET

(

x

)

offsetof(JackData, x)

Definition at line 328 of file jack_audio.c.

Function Documentation

static int process_callback ( jack_nframes_t  nframes, void *  arg  )

static

Definition at line 58 of file jack_audio.c.

Referenced by start_jack().

static void shutdown_callback ( void *  arg )

static

Definition at line 118 of file jack_audio.c.

Referenced by start_jack().

static int xrun_callback ( void *  arg )

static

Definition at line 124 of file jack_audio.c.

Referenced by start_jack().

static int supply_new_packets ( JackData *  self, AVFormatContext *  context  )

static

Definition at line 132 of file jack_audio.c.

Referenced by audio_read_packet(), and start_jack().

static int start_jack ( AVFormatContext *  context )

static

Definition at line 150 of file jack_audio.c.

Referenced by audio_read_header().

static void free_pkt_fifo ( AVFifoBuffer **  fifo )

static

Definition at line 209 of file jack_audio.c.

Referenced by stop_jack().

static void stop_jack ( JackData *  self )

static

Definition at line 219 of file jack_audio.c.

Referenced by audio_read_close(), and audio_read_header().

static int audio_read_header ( AVFormatContext *  context )

static

Definition at line 233 of file jack_audio.c.

static int audio_read_packet ( AVFormatContext *  context, AVPacket *  pkt  )

static

Definition at line 261 of file jack_audio.c.

static int audio_read_close ( AVFormatContext *  context )

static

Definition at line 321 of file jack_audio.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "channels", "Number of audio channels.", OFFSET(nports), AV_OPT_TYPE_INT, { .i64 = 2 }, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
    { NULL },
}

Definition at line 329 of file jack_audio.c.

const AVClass jack_indev_class

static

Initial value:

= {
    .class_name     = "JACK indev",
    .item_name      = av_default_item_name,
    .option         = options,
    .version        = LIBAVUTIL_VERSION_INT,
    .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
}

Definition at line 334 of file jack_audio.c.

AVInputFormat ff_jack_demuxer

Initial value:

= {
    .name           = "jack",
    .long_name      = NULL_IF_CONFIG_SMALL("JACK Audio Connection Kit"),
    .priv_data_size = sizeof(JackData),
    .read_header    = audio_read_header,
    .read_packet    = audio_read_packet,
    .read_close     = audio_read_close,
    .flags          = AVFMT_NOFILE,
    .priv_class     = &jack_indev_class,
}

Definition at line 342 of file jack_audio.c.