static GstFlowReturn
gst_dvd_spu_video_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
GstFlowReturn ret;
g_return_val_if_fail (dvdspu != NULL, GST_FLOW_ERROR);
GST_LOG_OBJECT (dvdspu, "video buffer %p with TS %" GST_TIME_FORMAT,
buf, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
ret = dvdspu_handle_vid_buffer (dvdspu, buf);
return ret;
}
/* 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)
{
GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
SpuState *state = &dvdspu->spu_state;
gboolean res = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
res = gst_dvd_spu_video_set_caps (pad, caps);
if (res)
res = gst_pad_push_event (dvdspu->srcpad, event);
else
gst_event_unref (event);
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM:
case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:
{
gboolean in_still;
if (gst_video_event_parse_still_frame (event, &in_still)) {
GstBuffer *to_push = NULL;
/* Forward the event before handling */
res = gst_pad_event_default (pad, parent, event);
GST_DEBUG_OBJECT (dvdspu,
"Still frame event on video pad: in-still = %d", in_still);
DVD_SPU_LOCK (dvdspu);
if (in_still) {
state->flags |= SPU_STATE_STILL_FRAME;
/* Entering still. Advance the SPU to make sure the state is
* up to date */
gst_dvd_spu_check_still_updates (dvdspu);
/* And re-draw the still frame to make sure it appears on
* screen, otherwise the last frame might have been discarded
* by QoS */
gst_dvd_spu_redraw_still (dvdspu, TRUE);
to_push = dvdspu->pending_frame;
dvdspu->pending_frame = NULL;
} else {
state->flags &= ~(SPU_STATE_STILL_FRAME);
}
DVD_SPU_UNLOCK (dvdspu);
if (to_push)
gst_pad_push (dvdspu->srcpad, to_push);
} else {
GST_DEBUG_OBJECT (dvdspu,
"Custom event %" GST_PTR_FORMAT " on video pad", event);
res = gst_pad_event_default (pad, parent, event);
}
break;
}
case GST_EVENT_SEGMENT:
{
GstSegment seg;
gst_event_copy_segment (event, &seg);
if (seg.format != GST_FORMAT_TIME)
return FALSE;
/* Only print updates if they have an end time (don't print start_time
* updates */
GST_DEBUG_OBJECT (dvdspu, "video pad Segment: %" GST_SEGMENT_FORMAT,
&seg);
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);
}
}
dvdspu->video_seg = seg;
DVD_SPU_UNLOCK (dvdspu);
res = gst_pad_event_default (pad, parent, event);
break;
}
case GST_EVENT_FLUSH_START:
res = gst_pad_event_default (pad, parent, event);
goto done;
case GST_EVENT_FLUSH_STOP:
res = gst_pad_event_default (pad, parent, event);
DVD_SPU_LOCK (dvdspu);
gst_segment_init (&dvdspu->video_seg, GST_FORMAT_UNDEFINED);
gst_buffer_replace (&dvdspu->ref_frame, NULL);
gst_buffer_replace (&dvdspu->pending_frame, NULL);
DVD_SPU_UNLOCK (dvdspu);
goto done;
default:
res = gst_pad_event_default (pad, parent, event);
break;
}
done:
return res;
#if 0
error:
gst_event_unref (event);
return FALSE;
#endif
}
