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asfdemux: Don't modify segment values on accurate seeks

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When dealing with accurate seeks, we want to return exactly the segment
that was requested by the seek event, and not adjust the values.

https://bugzilla.gnome.org/show_bug.cgi?id=755469
This commit is contained in:
Edward Hervey 2016-03-08 12:26:01 +01:00 committed by Edward Hervey
parent 7d021628cf
commit dba14178ce
2 changed files with 11 additions and 6 deletions
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16
gst/asfdemux/gstasfdemux.c
View file

@ -290,6 +290,7 @@ gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
demux->segment_seqnum = 0;
demux->segment_running = FALSE;
demux->keyunit_sync = FALSE;
demux->accurate = FALSE;
demux->metadata = gst_caps_new_empty ();
demux->global_metadata = gst_structure_new_empty ("metadata");
demux->data_size = 0;
@ -637,7 +638,7 @@ gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
GstSeekType cur_type, stop_type;
GstFormat format;
gboolean only_need_update;
gboolean accurate, after, before, next;
gboolean after, before, next;
gboolean flush;
gdouble rate;
gint64 cur, stop;
@ -682,7 +683,8 @@ gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
seqnum = gst_event_get_seqnum (event);
flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
accurate = ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
demux->accurate =
((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
demux->keyunit_sync =
((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
@ -784,7 +786,7 @@ gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
* the hope of hitting a keyframe and let the sinks throw away the stuff
* before the segment start. For audio-only this is unnecessary as every
* frame is 'key'. */
if (flush && (accurate || (demux->keyunit_sync && !next))
if (flush && (demux->accurate || (demux->keyunit_sync && !next))
&& demux->num_video_streams > 0) {
seek_time -= 5 * GST_SECOND;
if (seek_time < 0)
@ -798,7 +800,7 @@ gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
packet = demux->num_packets;
}
} else {
if (G_LIKELY (demux->keyunit_sync)) {
if (G_LIKELY (demux->keyunit_sync && !demux->accurate)) {
GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
@ -1598,7 +1600,8 @@ gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
(payload->ts < demux->segment.start))) {
if (G_UNLIKELY ((!demux->keyunit_sync) && payload->keyframe)) {
if (G_UNLIKELY ((!demux->keyunit_sync) && (!demux->accurate)
&& payload->keyframe)) {
GST_DEBUG_OBJECT (stream->pad,
"Found keyframe, updating segment start to %" GST_TIME_FORMAT,
GST_TIME_ARGS (payload->ts));
@ -1681,7 +1684,7 @@ gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
}
/* FIXME : only if ACCURATE ! */
if (G_LIKELY (!demux->keyunit_sync
if (G_LIKELY (!demux->keyunit_sync && !demux->accurate
&& (GST_CLOCK_TIME_IS_VALID (payload->ts)))
&& !GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)) {
GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
@ -4667,6 +4670,7 @@ gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
demux->need_newsegment = TRUE;
demux->segment_running = FALSE;
demux->keyunit_sync = FALSE;
demux->accurate = FALSE;
demux->adapter = gst_adapter_new ();
demux->metadata = gst_caps_new_empty ();
demux->global_metadata = gst_structure_new_empty ("metadata");

1
gst/asfdemux/gstasfdemux.h
View file

@ -213,6 +213,7 @@ struct _GstASFDemux {
GstSegment segment; /* configured play segment */
gboolean keyunit_sync;
gboolean accurate;
gboolean need_newsegment; /* do we need to send a new-segment event? */
guint32 segment_seqnum; /* if the new segment must have this seqnum */