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videodecoder: push pending events before gap

Browse source 
Push all pending events before pushing the gap. This ensures the
segment is pushed before the gap so it can be properly translated
to the running time

Includes unit test.

https://bugzilla.gnome.org/show_bug.cgi?id=753360
This commit is contained in:
Thiago Santos 2015-08-09 23:23:05 -03:00
parent 4665c0802a
commit e59d1308cc
2 changed files with 82 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

43
gst-libs/gst/video/gstvideodecoder.c
View file

@ -439,6 +439,8 @@ static void gst_video_decoder_reset (GstVideoDecoder * decoder, gboolean full,
static GstFlowReturn gst_video_decoder_decode_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static void gst_video_decoder_push_event_list (GstVideoDecoder * decoder,
GList * events);
static GstClockTime gst_video_decoder_get_frame_duration (GstVideoDecoder *
decoder, GstVideoCodecFrame * frame);
static GstVideoCodecFrame *gst_video_decoder_new_frame (GstVideoDecoder *
@ -1222,6 +1224,8 @@ gst_video_decoder_sink_event_default (GstVideoDecoder * decoder,
{
GstFlowReturn flow_ret = GST_FLOW_OK;
gboolean needs_reconfigure = FALSE;
GList *events;
GList *frame_events;
flow_ret = gst_video_decoder_drain_out (decoder, FALSE);
ret = (flow_ret == GST_FLOW_OK);
@ -1247,8 +1251,19 @@ gst_video_decoder_sink_event_default (GstVideoDecoder * decoder,
gst_pad_mark_reconfigure (decoder->srcpad);
}
}
GST_DEBUG_OBJECT (decoder, "Pushing all pending serialized events"
" before the gap");
events = decoder->priv->pending_events;
frame_events = decoder->priv->current_frame_events;
decoder->priv->pending_events = NULL;
decoder->priv->current_frame_events = NULL;
GST_VIDEO_DECODER_STREAM_UNLOCK (decoder);
gst_video_decoder_push_event_list (decoder, events);
gst_video_decoder_push_event_list (decoder, frame_events);
/* Forward GAP immediately. Everything is drained after
* the GAP event and we can forward this event immediately
* now without having buffers out of order.
@ -2543,6 +2558,19 @@ gst_video_decoder_new_frame (GstVideoDecoder * decoder)
return frame;
}
static void
gst_video_decoder_push_event_list (GstVideoDecoder * decoder, GList * events)
{
GList *l;
/* events are stored in reverse order */
for (l = g_list_last (events); l; l = g_list_previous (l)) {
GST_LOG_OBJECT (decoder, "pushing %s event", GST_EVENT_TYPE_NAME (l->data));
gst_video_decoder_push_event (decoder, l->data);
}
g_list_free (events);
}
static void
gst_video_decoder_prepare_finish_frame (GstVideoDecoder *
decoder, GstVideoCodecFrame * frame, gboolean dropping)
@ -2584,21 +2612,10 @@ gst_video_decoder_prepare_finish_frame (GstVideoDecoder *
decoder->priv->pending_events =
g_list_concat (decoder->priv->pending_events, events);
} else {
for (l = g_list_last (decoder->priv->pending_events); l;
l = g_list_previous (l)) {
GST_LOG_OBJECT (decoder, "pushing %s event",
GST_EVENT_TYPE_NAME (l->data));
gst_video_decoder_push_event (decoder, l->data);
}
g_list_free (decoder->priv->pending_events);
gst_video_decoder_push_event_list (decoder, decoder->priv->pending_events);
decoder->priv->pending_events = NULL;
for (l = g_list_last (events); l; l = g_list_previous (l)) {
GST_LOG_OBJECT (decoder, "pushing %s event",
GST_EVENT_TYPE_NAME (l->data));
gst_video_decoder_push_event (decoder, l->data);
}
g_list_free (events);
gst_video_decoder_push_event_list (decoder, events);
}
/* Check if the data should not be displayed. For example altref/invisible

52
tests/check/libs/videodecoder.c
View file

@ -680,6 +680,57 @@ GST_START_TEST (videodecoder_buffer_after_segment)
GST_END_TEST;
/* make sure that the segment event is pushed before the gap */
GST_START_TEST (videodecoder_first_data_is_gap)
{
GstSegment segment;
GList *events_iter;
setup_videodecodertester (NULL, NULL);
gst_pad_set_active (mysrcpad, TRUE);
gst_element_set_state (dec, GST_STATE_PLAYING);
gst_pad_set_active (mysinkpad, TRUE);
send_startup_events ();
/* push a new segment */
gst_segment_init (&segment, GST_FORMAT_TIME);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_segment (&segment)));
/* push a gap */
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_gap (0,
GST_SECOND)));
events_iter = events;
/* make sure the usual events have been received */
{
GstEvent *sstart = events_iter->data;
fail_unless (GST_EVENT_TYPE (sstart) == GST_EVENT_STREAM_START);
events_iter = g_list_next (events_iter);
}
{
GstEvent *caps_event = events_iter->data;
fail_unless (GST_EVENT_TYPE (caps_event) == GST_EVENT_CAPS);
events_iter = g_list_next (events_iter);
}
{
GstEvent *segment_event = events_iter->data;
fail_unless (GST_EVENT_TYPE (segment_event) == GST_EVENT_SEGMENT);
events_iter = g_list_next (events_iter);
}
/* Make sure the gap was pushed */
{
GstEvent *gap = events_iter->data;
fail_unless (GST_EVENT_TYPE (gap) == GST_EVENT_GAP);
events_iter = g_list_next (events_iter);
}
fail_unless (events_iter == NULL);
cleanup_videodecodertest ();
}
GST_END_TEST;
GST_START_TEST (videodecoder_backwards_playback)
{
@ -1041,6 +1092,7 @@ gst_videodecoder_suite (void)
tcase_add_test (tc, videodecoder_playback_with_events);
tcase_add_test (tc, videodecoder_playback_first_frames_not_decoded);
tcase_add_test (tc, videodecoder_buffer_after_segment);
tcase_add_test (tc, videodecoder_first_data_is_gap);
tcase_add_test (tc, videodecoder_backwards_playback);
tcase_add_test (tc, videodecoder_backwards_buffer_after_segment);