mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-07-18 04:18:20 +00:00
Code Issues 1 Projects Releases Wiki Activity

gst/playback/gstplaybin.c: Override send_event differently, so that we can takes bits of functionality from GstPipeli...

Browse source 
Original commit message from CVS:
* gst/playback/gstplaybin.c: (gst_play_bin_send_event_to_sink),
(do_playbin_seek), (gst_play_bin_send_event):
Override send_event differently, so that we can takes bits of
functionality from GstPipeline (special handling for seeks,
including pausing/resuming, and resetting stream time) and
still get
the appropriate behaviour of only forwarding event to a single
sink,
rather than all of them.
Unfortunately requires a lot of code duplication, but the
alternatives are equally ugly in the end.
This commit is contained in:
Michael Smith 2005-10-11 15:49:31 +00:00
parent e784ac83b6
commit 70b42a65cb
2 changed files with 80 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
ChangeLog
View file

@ -1,3 +1,15 @@
2005-10-11 Michael Smith <msmith@fluendo.com>
* gst/playback/gstplaybin.c: (gst_play_bin_send_event_to_sink),
(do_playbin_seek), (gst_play_bin_send_event):
Override send_event differently, so that we can takes bits of
functionality from GstPipeline (special handling for seeks,
including pausing/resuming, and resetting stream time) and still get
the appropriate behaviour of only forwarding event to a single sink,
rather than all of them.
Unfortunately requires a lot of code duplication, but the
alternatives are equally ugly in the end.
2005-10-11 Thomas Vander Stichele <thomas at apestaart dot org>
* check/elements/audioconvert.c: (setup_audioconvert),

75
gst/playback/gstplaybin.c
View file

@ -858,16 +858,15 @@ setup_sinks (GstPlayBaseBin * play_base_bin, GstPlayBaseGroup * group)
}
}
/* Send an event to our sinks until one of them works; don't then send to the
* remaining sinks (unlike GstBin)
*/
static gboolean
gst_play_bin_send_event (GstElement * element, GstEvent * event)
gst_play_bin_send_event_to_sink (GstPlayBin * play_bin, GstEvent * event)
{
GstPlayBin *play_bin;
GList *sinks;
gboolean res = FALSE;
GList *sinks = play_bin->sinks;
gboolean res = TRUE;
play_bin = GST_PLAY_BIN (element);
sinks = play_bin->sinks;
while (sinks) {
GstElement *sink = GST_ELEMENT_CAST (sinks->data);
@ -883,6 +882,68 @@ gst_play_bin_send_event (GstElement * element, GstEvent * event)
return res;
}
static gboolean
do_playbin_seek (GstElement * element, GstEvent * event)
{
gdouble rate;
GstSeekFlags flags;
gboolean flush;
gboolean was_playing = FALSE;
gboolean res;
gst_event_parse_seek (event, &rate, NULL, &flags, NULL, NULL, NULL, NULL);
flush = flags & GST_SEEK_FLAG_FLUSH;
if (flush) {
GstState state;
GTimeVal timeout;
GST_TIME_TO_TIMEVAL (0, timeout);
/* need to call _get_state() since a bin state is only updated
* with this call. */
gst_element_get_state (element, &state, NULL, &timeout);
was_playing = state == GST_STATE_PLAYING;
if (was_playing) {
gst_element_set_state (element, GST_STATE_PAUSED);
}
}
res = gst_play_bin_send_event_to_sink (GST_PLAY_BIN (element), event);
if (flush && res) {
/* need to reset the stream time to 0 after a flushing seek */
gst_pipeline_set_new_stream_time (GST_PIPELINE (element), 0);
if (was_playing)
/* and continue playing */
gst_element_set_state (element, GST_STATE_PLAYING);
}
return res;
}
/* We only want to send the event to a single sink (overriding GstBin's
* behaviour), but we want to keep GstPipeline's behaviour - wrapping seek
* events appropriately. So, this is a messy duplication of code. */
static gboolean
gst_play_bin_send_event (GstElement * element, GstEvent * event)
{
gboolean res = FALSE;
GstEventType event_type = GST_EVENT_TYPE (event);
switch (event_type) {
case GST_EVENT_SEEK:
res = do_playbin_seek (element, event);
break;
default:
res = gst_play_bin_send_event_to_sink (GST_PLAY_BIN (element), event);
break;
}
return res;
}
static GstStateChangeReturn
gst_play_bin_change_state (GstElement * element, GstStateChange transition)
{