pulse_audio_dec.c File Reference

#include <pulse/rtclock.h>
#include <pulse/error.h>
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "libavformat/avformat.h"
#include "libavformat/internal.h"
#include "pulse_audio_common.h"
#include "timefilter.h"

Go to the source code of this file.

Data Structures
struct	PulseData

Macros
#define	DEFAULT_CODEC_ID   AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE)
#define	CHECK_SUCCESS_GOTO(rerror, expression, label)
#define	CHECK_DEAD_GOTO(p, rerror, label)
#define	OFFSET(a)   offsetof(PulseData, a)
#define	D   AV_OPT_FLAG_DECODING_PARAM

Functions
static void	context_state_cb (pa_context *c, void *userdata)
static void	stream_state_cb (pa_stream *s, void *userdata)
static void	stream_request_cb (pa_stream *s, size_t length, void *userdata)
static void	stream_latency_update_cb (pa_stream *s, void *userdata)
static av_cold int	pulse_close (AVFormatContext *s)
static av_cold int	pulse_read_header (AVFormatContext *s)
static int	pulse_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	pulse_get_device_list (AVFormatContext *h, AVDeviceInfoList *device_list)

Variables
static const AVOption	options []
static const AVClass	pulse_demuxer_class
AVInputFormat	ff_pulse_demuxer

Macro Definition Documentation

DEFAULT_CODEC_ID

#define DEFAULT_CODEC_ID   AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE)

Definition at line 36 of file pulse_audio_dec.c.

Referenced by pulse_read_header(), and pulse_read_packet().

CHECK_SUCCESS_GOTO

#define CHECK_SUCCESS_GOTO	(		rerror,
			expression,
			label
	)

Value:

do {                                                        \
        if (!(expression)) {                                    \
            rerror = AVERROR_EXTERNAL;                          \
            goto label;                                         \
        }                                                       \
    } while (0)

Definition at line 58 of file pulse_audio_dec.c.

Referenced by pulse_read_packet().

CHECK_DEAD_GOTO

#define CHECK_DEAD_GOTO	(		p,
			rerror,
			label
	)

Value:

do {                                                                \
        if (!(p)->context || !PA_CONTEXT_IS_GOOD(pa_context_get_state((p)->context)) || \
            !(p)->stream || !PA_STREAM_IS_GOOD(pa_stream_get_state((p)->stream))) { \
            rerror = AVERROR_EXTERNAL;                                  \
            goto label;                                                 \
        }                                                               \
    } while (0)

Definition at line 66 of file pulse_audio_dec.c.

Referenced by pulse_read_packet().

OFFSET

#define OFFSET

(

a

)

offsetof(PulseData, a)

Definition at line 343 of file pulse_audio_dec.c.

D

#define D   AV_OPT_FLAG_DECODING_PARAM

Definition at line 344 of file pulse_audio_dec.c.

Function Documentation

context_state_cb()

static void context_state_cb ( pa_context *  c, void *  userdata  )

static

Definition at line 75 of file pulse_audio_dec.c.

Referenced by pulse_read_header().

stream_state_cb()

static void stream_state_cb ( pa_stream *  s, void *  userdata  )

static

Definition at line 87 of file pulse_audio_dec.c.

Referenced by pulse_read_header().

stream_request_cb()

static void stream_request_cb ( pa_stream *  s, size_t  length, void *  userdata  )

static

Definition at line 99 of file pulse_audio_dec.c.

Referenced by pulse_read_header().

stream_latency_update_cb()

static void stream_latency_update_cb ( pa_stream *  s, void *  userdata  )

static

Definition at line 105 of file pulse_audio_dec.c.

Referenced by pulse_read_header().

pulse_close()

static av_cold int pulse_close ( AVFormatContext *  s )

static

Definition at line 111 of file pulse_audio_dec.c.

Referenced by pulse_read_header().

pulse_read_header()

static av_cold int pulse_read_header ( AVFormatContext *  s )

static

Definition at line 138 of file pulse_audio_dec.c.

pulse_read_packet()

static int pulse_read_packet ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 268 of file pulse_audio_dec.c.

pulse_get_device_list()

static int pulse_get_device_list ( AVFormatContext *  h, AVDeviceInfoList *  device_list  )

static

Definition at line 337 of file pulse_audio_dec.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "server",        "set PulseAudio server",                             OFFSET(server),        AV_OPT_TYPE_STRING, {.str = NULL},     0, 0, D },
    { "name",          "set application name",                              OFFSET(name),          AV_OPT_TYPE_STRING, {.str = LIBAVFORMAT_IDENT},  0, 0, D },
    { "stream_name",   "set stream description",                            OFFSET(stream_name),   AV_OPT_TYPE_STRING, {.str = "record"}, 0, 0, D },
    { "sample_rate",   "set sample rate in Hz",                             OFFSET(sample_rate),   AV_OPT_TYPE_INT,    {.i64 = 48000},    1, INT_MAX, D },
    { "channels",      "set number of audio channels",                      OFFSET(channels),      AV_OPT_TYPE_INT,    {.i64 = 2},        1, INT_MAX, D },
    { "frame_size",    "set number of bytes per frame",                     OFFSET(frame_size),    AV_OPT_TYPE_INT,    {.i64 = 1024},     1, INT_MAX, D },
    { "fragment_size", "set buffering size, affects latency and cpu usage", OFFSET(fragment_size), AV_OPT_TYPE_INT,    {.i64 = -1},      -1, INT_MAX, D },
    { "wallclock",     "set the initial pts using the current time",     OFFSET(wallclock),     AV_OPT_TYPE_INT,    {.i64 = 1},       -1, 1, D },
    { NULL },
}

Definition at line 346 of file pulse_audio_dec.c.

pulse_demuxer_class

const AVClass pulse_demuxer_class

static

Initial value:

= {
    .class_name     = "Pulse demuxer",
    .item_name      = av_default_item_name,
    .option         = options,
    .version        = LIBAVUTIL_VERSION_INT,
    .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
}

Definition at line 358 of file pulse_audio_dec.c.

ff_pulse_demuxer

AVInputFormat ff_pulse_demuxer

Initial value:

= {
    .name           = "pulse",
    .long_name      = NULL_IF_CONFIG_SMALL("Pulse audio input"),
    .priv_data_size = sizeof(PulseData),
    .read_header    = pulse_read_header,
    .read_packet    = pulse_read_packet,
    .read_close     = pulse_close,
    .get_device_list = pulse_get_device_list,
    .flags          = AVFMT_NOFILE,
    .priv_class     = &pulse_demuxer_class,
}

Definition at line 366 of file pulse_audio_dec.c.