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adaptivedemux: fix seek event handling

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Properly do seeking and avoid only seeking when the segment was updated.
It would cause seeks after the stream was EOS to fail, for example.

https://bugzilla.gnome.org/show_bug.cgi?id=738920
This commit is contained in:
Thiago Santos 2014-12-11 21:01:48 -03:00
parent 8cddfe6477
commit 75b0bac7f8
1 changed files with 51 additions and 54 deletions
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105
gst-libs/gst/adaptivedemux/gstadaptivedemux.c
View file

@ -785,6 +785,7 @@ gst_adaptive_demux_src_event (GstPad * pad, GstObject * parent,
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
guint32 seqnum;
GList *iter;
gboolean update;
gboolean ret = TRUE;
@ -792,6 +793,11 @@ gst_adaptive_demux_src_event (GstPad * pad, GstObject * parent,
GST_INFO_OBJECT (demux, "Received seek event");
if (demux_class->seek == NULL) {
GST_DEBUG_OBJECT (demux, "Subclass doesn't implement seeking");
return FALSE;
}
GST_MANIFEST_LOCK (demux);
if (gst_adaptive_demux_is_live (demux)) {
/* TODO not supported yet */
@ -810,6 +816,8 @@ gst_adaptive_demux_src_event (GstPad * pad, GstObject * parent,
return FALSE;
}
seqnum = gst_event_get_seqnum (event);
GST_DEBUG_OBJECT (demux,
"seek event, rate: %f type: %d start: %" GST_TIME_FORMAT " stop: %"
GST_TIME_FORMAT, rate, start_type, GST_TIME_ARGS (start),
@ -821,64 +829,53 @@ gst_adaptive_demux_src_event (GstPad * pad, GstObject * parent,
gst_segment_do_seek (&demux->segment, rate, format, flags, start_type,
start, stop_type, stop, &update);
if (update) {
if (flags & GST_SEEK_FLAG_FLUSH) {
GstEvent *fevent;
GST_DEBUG_OBJECT (demux, "sending flush start");
fevent = gst_event_new_flush_start ();
gst_event_set_seqnum (fevent, seqnum);
gst_adaptive_demux_push_src_event (demux, fevent);
}
gst_adaptive_demux_stop_tasks (demux);
GST_DEBUG_OBJECT (demux, "Seeking to segment %" GST_SEGMENT_FORMAT,
&demux->segment);
GST_MANIFEST_LOCK (demux);
ret = demux_class->seek (demux, event);
if (ret) {
GstEvent *seg_evt;
if (demux_class->seek == NULL) {
GST_DEBUG_OBJECT (demux, "Subclass doesn't implement seeking");
return FALSE;
seg_evt = gst_event_new_segment (&demux->segment);
gst_event_set_seqnum (seg_evt, seqnum);
for (iter = demux->streams; iter; iter = g_list_next (iter)) {
GstAdaptiveDemuxStream *stream = iter->data;
gst_event_replace (&stream->pending_segment, seg_evt);
}
if (flags & GST_SEEK_FLAG_FLUSH) {
GstEvent *fevent;
GST_DEBUG_OBJECT (demux, "sending flush start");
fevent = gst_event_new_flush_start ();
gst_event_set_seqnum (fevent, gst_event_get_seqnum (event));
gst_adaptive_demux_push_src_event (demux, fevent);
}
gst_adaptive_demux_stop_tasks (demux);
/* TODO flush and reset streams */
GST_DEBUG_OBJECT (demux, "Seeking to segment %" GST_SEGMENT_FORMAT,
&demux->segment);
GST_MANIFEST_LOCK (demux);
ret = demux_class->seek (demux, event);
if (ret) {
seg_evt = gst_event_new_segment (&demux->segment);
gst_event_set_seqnum (seg_evt, gst_event_get_seqnum (event));
for (iter = demux->streams; iter; iter = g_list_next (iter)) {
GstAdaptiveDemuxStream *stream = iter->data;
gst_event_replace (&stream->pending_segment, seg_evt);
}
gst_event_unref (seg_evt);
} else {
/* Is there anything else we can do if it fails? */
gst_segment_copy_into (&oldsegment, &demux->segment);
}
if (flags & GST_SEEK_FLAG_FLUSH) {
GstEvent *fevent;
GST_DEBUG_OBJECT (demux, "Sending flush stop on all pad");
fevent = gst_event_new_flush_stop (TRUE);
gst_event_set_seqnum (fevent, gst_event_get_seqnum (event));
gst_adaptive_demux_push_src_event (demux, fevent);
}
if (demux->next_streams) {
gst_adaptive_demux_expose_streams (demux);
}
/* Restart the demux */
gst_adaptive_demux_start_tasks (demux);
GST_MANIFEST_UNLOCK (demux);
gst_event_unref (seg_evt);
} else {
/* Is there anything else we can do if it fails? */
gst_segment_copy_into (&oldsegment, &demux->segment);
}
if (flags & GST_SEEK_FLAG_FLUSH) {
GstEvent *fevent;
GST_DEBUG_OBJECT (demux, "Sending flush stop on all pad");
fevent = gst_event_new_flush_stop (TRUE);
gst_event_set_seqnum (fevent, seqnum);
gst_adaptive_demux_push_src_event (demux, fevent);
}
if (demux->next_streams) {
gst_adaptive_demux_expose_streams (demux);
}
/* Restart the demux */
gst_adaptive_demux_start_tasks (demux);
GST_MANIFEST_UNLOCK (demux);
gst_event_unref (event);
return ret;
}