decklinkvideosink: Get our own "start time" instead of the one of the pipeline

decklinkvideosink might be added later to the pipeline, or its state might
be handled separately from the pipeline. In which case the running time when
we (last) went into PLAYING state will be different from the pipeline's.

However we need our own start time to tell the Decklink API, which running
time should be displayed at the moment we go to PLAYING and start scheduled
rendering.
This commit is contained in:
Sebastian Dröge 2015-01-13 17:44:17 +01:00
parent 7f27b81e05
commit d2e309d341

View file

@ -537,9 +537,15 @@ gst_decklink_video_sink_change_state (GstElement * element,
gst_clock_set_master (self->output->clock, NULL); gst_clock_set_master (self->output->clock, NULL);
break; break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:{ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:{
GstClockTime start_time = gst_element_get_start_time (element); GstClockTime start_time;
HRESULT res; HRESULT res;
// FIXME: start time is the same for the complete pipeline,
// but what we need here is the start time of this element!
start_time = gst_element_get_base_time (element);
if (start_time != GST_CLOCK_TIME_NONE)
start_time = gst_clock_get_time (GST_ELEMENT_CLOCK (self)) - start_time;
// FIXME: This will probably not work // FIXME: This will probably not work
if (start_time == GST_CLOCK_TIME_NONE) if (start_time == GST_CLOCK_TIME_NONE)
start_time = 0; start_time = 0;
@ -563,9 +569,15 @@ gst_decklink_video_sink_change_state (GstElement * element,
break; break;
} }
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:{ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:{
GstClockTime start_time = gst_element_get_start_time (element); GstClockTime start_time;
HRESULT res; HRESULT res;
// FIXME: start time is the same for the complete pipeline,
// but what we need here is the start time of this element!
start_time = gst_element_get_base_time (element);
if (start_time != GST_CLOCK_TIME_NONE)
start_time = gst_clock_get_time (GST_ELEMENT_CLOCK (self)) - start_time;
// FIXME: This will probably not work // FIXME: This will probably not work
if (start_time == GST_CLOCK_TIME_NONE) if (start_time == GST_CLOCK_TIME_NONE)
start_time = 0; start_time = 0;