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pulse: set the device from the avformat filename 

Cleanup the options and add explicit fragment_size avoption.
This commit is contained in:
Luca Barbato 2011-10-25 18:27:22 -07:00
parent 796cd225da
commit 94619d5e55
1 changed files with 27 additions and 19 deletions
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46
libavdevice/pulse.c
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@ -41,11 +41,11 @@ typedef struct PulseData {
AVClass *class;
char *server;
char *name;
char *dev;
char *stream_name;
int sample_rate;
int channels;
int frame_size;
int fragment_size;
pa_simple *s;
int64_t pts;
} PulseData;
@ -72,6 +72,7 @@ static av_cold int pulse_read_header(AVFormatContext *s,
{
PulseData *pd = s->priv_data;
AVStream *st;
char *device = NULL;
int ret;
enum CodecID codec_id =
s->audio_codec_id == CODEC_ID_NONE ? DEFAULT_CODEC_ID : s->audio_codec_id;
@ -88,12 +89,16 @@ static av_cold int pulse_read_header(AVFormatContext *s,
return AVERROR(ENOMEM);
}
attr.fragsize = pd->frame_size * 4;
attr.fragsize = pd->fragment_size;
if (strcmp(s->filename, "default"))
device = s->filename;
pd->s = pa_simple_new(pd->server, pd->name,
PA_STREAM_RECORD,
pd->dev, pd->stream_name, &ss,
device, pd->stream_name, &ss,
NULL, &attr, &ret);
if (!pd->s) {
av_log(s, AV_LOG_ERROR, "pa_simple_new failed: %s\n",
pa_strerror(ret));
@ -106,6 +111,8 @@ static av_cold int pulse_read_header(AVFormatContext *s,
st->codec->channels = pd->channels;
av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
pd->pts = AV_NOPTS_VALUE;
return 0;
}
@ -113,7 +120,7 @@ static int pulse_read_packet(AVFormatContext *s, AVPacket *pkt)
{
PulseData *pd = s->priv_data;
int res;
pa_usec_t latency, cur;
pa_usec_t latency;
uint64_t frame_duration =
(pd->frame_size*1000000LL)/(pd->sample_rate * pd->channels);
@ -121,8 +128,6 @@ static int pulse_read_packet(AVFormatContext *s, AVPacket *pkt)
return AVERROR(ENOMEM);
}
cur = pa_rtclock_now();
if ((pa_simple_read(pd->s, pkt->data, pkt->size, &res)) < 0) {
av_log(s, AV_LOG_ERROR, "pa_simple_read failed: %s\n",
pa_strerror(res));
@ -136,16 +141,12 @@ static int pulse_read_packet(AVFormatContext *s, AVPacket *pkt)
return AVERROR(EIO);
}
if (!pd->pts) {
pd->pts -= latency;
if (pd->pts == AV_NOPTS_VALUE) {
pd->pts = -latency;
}
pd->pts += frame_duration;
av_log(s, AV_LOG_DEBUG, "%"PRId64" time %"PRId64","
" latency %"PRId64", %"PRId64"\n",
av_gettime(), cur, latency, pd->pts);
pkt->pts = pd->pts;
return 0;
@ -162,13 +163,20 @@ static av_cold int pulse_close(AVFormatContext *s)
#define D AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "server", "pulse server name", OFFSET(server), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, D },
{ "name", "application name", OFFSET(name), AV_OPT_TYPE_STRING, {.str = "libav"}, 0, 0, D },
{ "dev", "device to use", OFFSET(dev), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, D },
{ "stream_name", "stream description", OFFSET(stream_name), AV_OPT_TYPE_STRING, {.str = "record"}, 0, 0, D },
{ "sample_rate", "", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, D },
{ "channels", "", OFFSET(channels), AV_OPT_TYPE_INT, {.dbl = 2}, 1, INT_MAX, D },
{ "frame_size", "", OFFSET(frame_size), AV_OPT_TYPE_INT, {.dbl = 1024}, 1, INT_MAX, D },
{ "server", "pulse server name",
OFFSET(server), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, D },
{ "name", "application name",
OFFSET(name), AV_OPT_TYPE_STRING, {.str = "libav"}, 0, 0, D },
{ "stream_name", "stream description",
OFFSET(stream_name), AV_OPT_TYPE_STRING, {.str = "record"}, 0, 0, D },
{ "sample_rate", "",
OFFSET(sample_rate), AV_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, D },
{ "channels", "",
OFFSET(channels), AV_OPT_TYPE_INT, {.dbl = 2}, 1, INT_MAX, D },
{ "frame_size", "",
OFFSET(frame_size), AV_OPT_TYPE_INT, {.dbl = 1024}, 1, INT_MAX, D },
{ "fragment_size", "buffering size, affects latency and cpu usage",
OFFSET(fragment_size), AV_OPT_TYPE_INT, {.dbl = -1}, -1, INT_MAX, D },
{ NULL },
};