#include "libavutil/log.h"
#include "libavutil/fifo.h"
+#include "libavutil/opt.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavformat/timefilter.h"
#define FIFO_PACKETS_NUM 16
typedef struct {
+ AVClass *class;
jack_client_t * client;
int activated;
sem_t packet_count;
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;
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);
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);
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"),
audio_read_packet,
audio_read_close,
.flags = AVFMT_NOFILE,
+ .priv_class = &jack_indev_class,
};