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dashdemux: improve position detection when a download restart

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Query other src pads before falling back to the position of the last
known pushed segment (which can be far ahead in time).

https://bugzilla.gnome.org/show_bug.cgi?id=736421
This commit is contained in:
Matthieu Bouron 2014-09-10 15:43:05 +02:00 committed by Thiago Santos
parent 00d0ff6c8e
commit 4ed7c7919a
1 changed files with 28 additions and 3 deletions
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31
ext/dash/gstdashdemux.c
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@ -2224,9 +2224,34 @@ gst_dash_demux_stream_download_fragment (GstDashDemux * demux,
GST_DEBUG_OBJECT (stream->pad, "Downstream position: %"
GST_TIME_FORMAT, GST_TIME_ARGS (ts));
} else {
ts = demux->segment.position;
GST_DEBUG_OBJECT (stream->pad, "Downstream position query failed, "
"failling back to looking at other pads");
gboolean have_pos = FALSE;
/* query other pads as some faulty element in the pad's branch might
* reject position queries. This should be better than using the
* demux segment position that can be much ahead */
for (GSList * iter = demux->streams; iter != NULL;
iter = g_slist_next (iter)) {
GstDashDemuxStream *cur_stream = iter->data;
if (!cur_stream->active_stream || cur_stream->pad == stream->pad)
continue;
have_pos =
gst_pad_peer_query_position (cur_stream->pad, GST_FORMAT_TIME,
&pos);
if (have_pos) {
ts = (GstClockTime) pos;
GST_DEBUG_OBJECT (stream->pad, "Downstream position: %"
GST_TIME_FORMAT, GST_TIME_ARGS (ts));
break;
}
}
if (!have_pos) {
ts = demux->segment.position;
GST_DEBUG_OBJECT (stream->pad, "Downstream position query failed, "
"failling back to looking at other pads");
}
}
GST_DEBUG_OBJECT (stream->pad, "Restarting stream at "