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dvdspu: Advance video stream with gap events.

Browse source 
Handle Gap events the way we used to handle segment updates
and advance/fill in the video stream accordingly. Fixes
'still' menus which aren't DVD still frames, but are just a
single frame with accompanying audio.
This commit is contained in:
Jan Schmidt 2012-09-09 16:40:00 -07:00
parent 16f5120d96
commit 8d5c1be312
1 changed files with 38 additions and 14 deletions
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52
gst/dvdspu/gstdvdspu.c
View file

@ -380,6 +380,27 @@ gst_dvd_spu_video_proxy_getcaps (GstPad * pad, GstCaps * filter)
return caps;
}
/* With SPU lock held */
static void
update_video_to_position (GstDVDSpu * dvdspu, GstClockTime new_pos)
{
SpuState *state = &dvdspu->spu_state;
#if 0
g_print ("Segment update for video. Advancing from %" GST_TIME_FORMAT
" to %" GST_TIME_FORMAT "\n",
GST_TIME_ARGS (dvdspu->video_seg.position), GST_TIME_ARGS (start));
#endif
while (dvdspu->video_seg.position < new_pos &&
!(state->flags & SPU_STATE_STILL_FRAME)) {
DVD_SPU_UNLOCK (dvdspu);
if (dvdspu_handle_vid_buffer (dvdspu, NULL) != GST_FLOW_OK) {
DVD_SPU_LOCK (dvdspu);
break;
}
DVD_SPU_LOCK (dvdspu);
}
}
static gboolean
gst_dvd_spu_video_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
@ -456,20 +477,7 @@ gst_dvd_spu_video_event (GstPad * pad, GstObject * parent, GstEvent * event)
DVD_SPU_LOCK (dvdspu);
if (seg.start > dvdspu->video_seg.position) {
#if 0
g_print ("Segment update for video. Advancing from %" GST_TIME_FORMAT
" to %" GST_TIME_FORMAT "\n",
GST_TIME_ARGS (dvdspu->video_seg.position), GST_TIME_ARGS (start));
#endif
while (dvdspu->video_seg.position < seg.start &&
!(state->flags & SPU_STATE_STILL_FRAME)) {
DVD_SPU_UNLOCK (dvdspu);
if (dvdspu_handle_vid_buffer (dvdspu, NULL) != GST_FLOW_OK) {
DVD_SPU_LOCK (dvdspu);
break;
}
DVD_SPU_LOCK (dvdspu);
}
update_video_to_position (dvdspu, seg.start);
}
dvdspu->video_seg = seg;
@ -478,6 +486,22 @@ gst_dvd_spu_video_event (GstPad * pad, GstObject * parent, GstEvent * event)
res = gst_pad_event_default (pad, parent, event);
break;
}
case GST_EVENT_GAP:
{
GstClockTime timestamp, duration;
gst_event_parse_gap (event, &timestamp, &duration);
if (GST_CLOCK_TIME_IS_VALID (duration))
timestamp += duration;
DVD_SPU_LOCK (dvdspu);
GST_LOG_OBJECT (dvdspu, "Received GAP. Advancing to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
update_video_to_position (dvdspu, timestamp);
DVD_SPU_UNLOCK (dvdspu);
gst_event_unref (event);
break;
}
case GST_EVENT_FLUSH_START:
res = gst_pad_event_default (pad, parent, event);
goto done;