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ffmpeg
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jack: add 'channels' private option. 

Get rid of AVFormatParameters usage.
This commit is contained in:
Anton Khirnov 2011-07-17 08:08:57 +02:00
parent 0e86965514
commit a7c93dae55
1 changed files with 18 additions and 6 deletions
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24
libavdevice/jack_audio.c
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@ -26,6 +26,7 @@
#include "libavutil/log.h"
#include "libavutil/fifo.h"
#include "libavutil/opt.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavformat/timefilter.h"
@ -36,6 +37,7 @@
#define FIFO_PACKETS_NUM 16
typedef struct {
AVClass *class;
jack_client_t * client;
int activated;
sem_t packet_count;
@ -136,7 +138,7 @@ static int supply_new_packets(JackData *self, AVFormatContext *context)
return 0;
}
static int start_jack(AVFormatContext *context, AVFormatParameters *params)
static int start_jack(AVFormatContext *context)
{
JackData *self = context->priv_data;
jack_status_t status;
@ -153,7 +155,6 @@ static int start_jack(AVFormatContext *context, AVFormatParameters *params)
sem_init(&self->packet_count, 0, 0);
self->sample_rate = jack_get_sample_rate(self->client);
self->nports = params->channels;
self->ports = av_malloc(self->nports * sizeof(*self->ports));
self->buffer_size = jack_get_buffer_size(self->client);
@ -225,10 +226,7 @@ static int audio_read_header(AVFormatContext *context, AVFormatParameters *param
AVStream *stream;
int test;
if (params->sample_rate <= 0 || params->channels <= 0)
return -1;
if ((test = start_jack(context, params)))
if ((test = start_jack(context)))
return test;
stream = av_new_stream(context, 0);
@ -314,6 +312,19 @@ static int audio_read_close(AVFormatContext *context)
return 0;
}
#define OFFSET(x) offsetof(JackData, x)
static const AVOption options[] = {
{ "channels", "Number of audio channels.", OFFSET(nports), FF_OPT_TYPE_INT, { 2 }, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
{ NULL },
};
static const AVClass jack_indev_class = {
.class_name = "JACK indev",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_jack_demuxer = {
"jack",
NULL_IF_CONFIG_SMALL("JACK Audio Connection Kit"),
@ -323,4 +334,5 @@ AVInputFormat ff_jack_demuxer = {
audio_read_packet,
audio_read_close,
.flags = AVFMT_NOFILE,
.priv_class = &jack_indev_class,
};