mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-06-04 22:48:54 +00:00
Code Issues 1 Projects Releases Wiki Activity

mpegpsdemux: Implement SEEKING query

Browse source 
Fixes bug #588944.
This commit is contained in:
Sebastian Dröge 2009-07-21 13:39:21 +02:00
parent 1f88ceeba8
commit 95e50d3598
1 changed files with 55 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

55
gst/mpegdemux/gstmpegdemux.c
View file

@ -1383,11 +1383,66 @@ gst_flups_demux_src_query (GstPad * pad, GstQuery * query)
res = TRUE;
break;
}
case GST_QUERY_SEEKING:{
GstFormat fmt;
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
res = TRUE;
if (demux->random_access) {
/* In pull mode we can seek in TIME format if we have the SCR */
if (fmt != GST_FORMAT_TIME || demux->scr_rate_n == G_MAXUINT64
|| demux->scr_rate_d == G_MAXUINT64)
gst_query_set_seeking (query, fmt, FALSE, -1, -1);
else
gst_query_set_seeking (query, fmt, TRUE, 0, -1);
} else {
if (fmt == GST_FORMAT_BYTES) {
/* Seeking in BYTES format not supported at all */
gst_query_set_seeking (query, fmt, FALSE, -1, -1);
} else {
GstQuery *peerquery;
gboolean seekable;
/* Then ask upstream */
res = gst_pad_peer_query (demux->sinkpad, query);
if (res) {
/* If upstream can handle seeks we're done, if it
* can't we still have our TIME->BYTES conversion seek
*/
gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
if (seekable || fmt != GST_FORMAT_TIME)
goto beach;
}
/* We can seek if upstream supports BYTES seeks and we
* have the SCR
*/
peerquery = gst_query_new_seeking (GST_FORMAT_BYTES);
res = gst_pad_peer_query (demux->sinkpad, query);
if (!res || demux->scr_rate_n == G_MAXUINT64
|| demux->scr_rate_d == G_MAXUINT64) {
gst_query_set_seeking (query, fmt, FALSE, -1, -1);
} else {
gst_query_parse_seeking (peerquery, NULL, &seekable, NULL, NULL);
if (seekable)
gst_query_set_seeking (query, GST_FORMAT_TIME, TRUE, 0, -1);
else
gst_query_set_seeking (query, fmt, FALSE, -1, -1);
}
gst_query_unref (peerquery);
res = TRUE;
}
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
beach:
gst_object_unref (demux);
return res;