mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 20:21:24 +00:00
Code Issues 1 Projects Releases Wiki Activity

alsasrc: handle the case where the drivers don't supply timestamps

Browse source 
If highres-timestamp is 0, try lowres and if that fails fallback to system clock
timestamps.
This commit is contained in:
Stefan Sauer 2011-11-28 09:12:37 +01:00
parent c6b9145630
commit 8154b69112
1 changed files with 15 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
ext/alsa/gstalsasrc.c
View file

@ -251,7 +251,8 @@ static GstClockTime
gst_alsasrc_get_timestamp (GstAlsaSrc * src)
{
snd_pcm_status_t *status;
snd_htimestamp_t tstamp;
snd_htimestamp_t htstamp;
snd_timestamp_t tstamp;
GstClockTime timestamp;
snd_pcm_uframes_t availmax;
gint64 offset;
@ -275,8 +276,19 @@ gst_alsasrc_get_timestamp (GstAlsaSrc * src)
}
/* get high resolution time stamp from driver */
snd_pcm_status_get_htstamp (status, &tstamp);
timestamp = GST_TIMESPEC_TO_TIME (tstamp);
snd_pcm_status_get_htstamp (status, &htstamp);
timestamp = GST_TIMESPEC_TO_TIME (htstamp);
if (!timestamp) {
GST_INFO_OBJECT (src,
"This alsa source does support high resolution timestamps");
snd_pcm_status_get_tstamp (status, &tstamp);
timestamp = GST_TIMEVAL_TO_TIME (tstamp);
if (!timestamp) {
GST_INFO_OBJECT (src,
"This alsa source does support low resolution timestamps");
timestamp = gst_util_get_timestamp ();
}
}
GST_DEBUG_OBJECT (src, "Base ts: %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (timestamp == 0) {