mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-06-07 07:58:51 +00:00
Code Issues 1 Projects Releases Wiki Activity

tsdemux: Report latency (700ms)

Browse source
This commit is contained in:
Edward Hervey 2011-11-08 20:12:50 +01:00
parent c492b00b69
commit 8f433e1677
1 changed files with 25 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
gst/mpegtsdemux/tsdemux.c
View file

@ -395,6 +395,7 @@ gst_ts_demux_srcpad_query_types (GstPad * pad)
static const GstQueryType query_types[] = { static const GstQueryType query_types[] = {
GST_QUERY_DURATION, GST_QUERY_DURATION,
GST_QUERY_SEEKING, GST_QUERY_SEEKING,
GST_QUERY_LATENCY,
0 0
}; };
@ -425,6 +426,30 @@ gst_ts_demux_srcpad_query (GstPad * pad, GstQuery * query)
res = FALSE; res = FALSE;
} }
break; break;
case GST_QUERY_LATENCY:
{
GST_DEBUG ("query latency");
res = gst_pad_peer_query (base->sinkpad, query);
if (res && base->upstream_live) {
GstClockTime min_lat, max_lat;
gboolean live;
/* According to H.222.0
Annex D.0.3 (System Time Clock recovery in the decoder)
and D.0.2 (Audio and video presentation synchronization)
We can end up with an interval of up to 700ms between valid
PCR/SCR. We therefore allow a latency of 700ms for that.
*/
gst_query_parse_latency (query, &live, &min_lat, &max_lat);
if (min_lat != -1)
min_lat += 700 * GST_MSECOND;
if (max_lat != -1)
max_lat += 700 * GST_MSECOND;
gst_query_set_latency (query, live, min_lat, max_lat);
}
}
break;
case GST_QUERY_SEEKING: case GST_QUERY_SEEKING:
GST_DEBUG ("query seeking"); GST_DEBUG ("query seeking");
gst_query_parse_seeking (query, &format, NULL, NULL, NULL); gst_query_parse_seeking (query, &format, NULL, NULL, NULL);