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playbin3: Remove duration caching

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This is now handled directly via sinks and queries through pads
This commit is contained in:
Edward Hervey 2017-09-22 17:04:54 +02:00 committed by Edward Hervey
parent fc93302087
commit 9f1063e4a3
1 changed files with 0 additions and 118 deletions
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118
gst/playback/gstplaybin3.c
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@ -472,13 +472,6 @@ struct _GstPlayBin3
GSequence *aelements; /* a list of GstAVElements for audio stream */
GSequence *velements; /* a list of GstAVElements for video stream */
struct
{
gboolean valid;
GstFormat format;
gint64 duration;
} duration[5]; /* cached durations */
guint64 ring_buffer_max_size; /* 0 means disabled */
/* Active stream collection */
@ -581,7 +574,6 @@ static GstStateChangeReturn gst_play_bin3_change_state (GstElement * element,
static void gst_play_bin3_handle_message (GstBin * bin, GstMessage * message);
static void gst_play_bin3_deep_element_added (GstBin * playbin,
GstBin * sub_bin, GstElement * child);
static gboolean gst_play_bin3_query (GstElement * element, GstQuery * query);
static gboolean gst_play_bin3_send_event (GstElement * element,
GstEvent * event);
@ -1023,7 +1015,6 @@ gst_play_bin3_class_init (GstPlayBin3Class * klass)
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_play_bin3_change_state);
gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_play_bin3_query);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_bin3_send_event);
gstbin_klass->handle_message =
@ -2116,108 +2107,6 @@ gst_play_bin3_get_property (GObject * object, guint prop_id, GValue * value,
}
}
static void
gst_play_bin3_update_cached_duration_from_query (GstPlayBin3 * playbin,
gboolean valid, GstQuery * query)
{
GstFormat fmt;
gint64 duration;
gint i;
GST_DEBUG_OBJECT (playbin, "Updating cached duration from query");
gst_query_parse_duration (query, &fmt, &duration);
for (i = 0; i < G_N_ELEMENTS (playbin->duration); i++) {
if (playbin->duration[i].format == 0 || fmt == playbin->duration[i].format) {
playbin->duration[i].valid = valid;
playbin->duration[i].format = fmt;
playbin->duration[i].duration = valid ? duration : -1;
break;
}
}
}
static void
gst_play_bin3_update_cached_duration (GstPlayBin3 * playbin)
{
const GstFormat formats[] =
{ GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT };
gboolean ret;
GstQuery *query;
gint i;
GST_DEBUG_OBJECT (playbin, "Updating cached durations before group switch");
for (i = 0; i < G_N_ELEMENTS (formats); i++) {
query = gst_query_new_duration (formats[i]);
ret =
GST_ELEMENT_CLASS (parent_class)->query (GST_ELEMENT_CAST (playbin),
query);
gst_play_bin3_update_cached_duration_from_query (playbin, ret, query);
gst_query_unref (query);
}
}
static gboolean
gst_play_bin3_query (GstElement * element, GstQuery * query)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (element);
gboolean ret;
/* During a group switch we shouldn't allow duration queries
* because it's not clear if the old or new group's duration
* is returned and if the sinks are already playing new data
* or old data. See bug #585969
*
* While we're at it, also don't do any other queries during
* a group switch or any other event that causes topology changes
* by taking the playbin lock in any case.
*/
GST_PLAY_BIN3_LOCK (playbin);
if (GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
GstSourceGroup *group = playbin->curr_group;
gboolean pending;
GST_SOURCE_GROUP_LOCK (group);
pending = group->pending || group->stream_changed_pending;
if (pending) {
GstFormat fmt;
gint i;
ret = FALSE;
gst_query_parse_duration (query, &fmt, NULL);
for (i = 0; i < G_N_ELEMENTS (playbin->duration); i++) {
if (fmt == playbin->duration[i].format) {
ret = playbin->duration[i].valid;
gst_query_set_duration (query, fmt,
(ret ? playbin->duration[i].duration : -1));
break;
}
}
/* if nothing cached yet, we might as well request duration,
* such as during initial startup */
if (ret) {
GST_DEBUG_OBJECT (playbin,
"Taking cached duration because of pending group switch: %d", ret);
GST_SOURCE_GROUP_UNLOCK (group);
GST_PLAY_BIN3_UNLOCK (playbin);
return ret;
}
}
GST_SOURCE_GROUP_UNLOCK (group);
}
ret = GST_ELEMENT_CLASS (parent_class)->query (element, query);
if (GST_QUERY_TYPE (query) == GST_QUERY_DURATION)
gst_play_bin3_update_cached_duration_from_query (playbin, ret, query);
GST_PLAY_BIN3_UNLOCK (playbin);
return ret;
}
static gint
get_combiner_stream_id (GstPlayBin3 * playbin, GstSourceCombine * combine,
GList * full_list)
@ -4902,7 +4791,6 @@ setup_next_source (GstPlayBin3 * playbin, GstState target)
if (old_group && old_group->valid && old_group->active) {
new_group->stream_changed_pending = TRUE;
gst_play_bin3_update_cached_duration (playbin);
/* unlink our pads with the sink */
deactivate_group (playbin, old_group);
old_group->valid = FALSE;
@ -5001,12 +4889,8 @@ gst_play_bin3_change_state (GstElement * element, GstStateChange transition)
playbin = GST_PLAY_BIN3 (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
memset (&playbin->duration, 0, sizeof (playbin->duration));
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_LOG_OBJECT (playbin, "clearing shutdown flag");
memset (&playbin->duration, 0, sizeof (playbin->duration));
g_atomic_int_set (&playbin->shutdown, 0);
do_async_start (playbin);
break;
@ -5015,7 +4899,6 @@ gst_play_bin3_change_state (GstElement * element, GstStateChange transition)
/* FIXME unlock our waiting groups */
GST_LOG_OBJECT (playbin, "setting shutdown flag");
g_atomic_int_set (&playbin->shutdown, 1);
memset (&playbin->duration, 0, sizeof (playbin->duration));
/* wait for all callbacks to end by taking the lock.
* No dynamic (critical) new callbacks will
@ -5033,7 +4916,6 @@ gst_play_bin3_change_state (GstElement * element, GstStateChange transition)
do_save = TRUE;
goto async_down;
}
memset (&playbin->duration, 0, sizeof (playbin->duration));
/* unlock so that all groups go to NULL */
groups_set_locked_state (playbin, FALSE);