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splitmuxsrc: Re-queue sticky events after probing.

Browse source 
When processing the first event after probing the
file and being activated, requeue sticky events
as there's no requirement that demuxers send tag
and other events again after a seek - that's
why they're sticky.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2432>
This commit is contained in:
Jan Schmidt 2022-05-17 05:21:19 +10:00 committed by GStreamer Marge Bot
parent d0fdfa76ae
commit 7322a6d004
1 changed files with 52 additions and 15 deletions
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67
subprojects/gst-plugins-good/gst/multifile/gstsplitmuxpartreader.c
View file

@ -54,6 +54,7 @@ typedef struct _GstSplitMuxPartPad
gboolean is_eos;
gboolean flushing;
gboolean seen_buffer;
gboolean first_activation;
gboolean is_sparse;
GstClockTime max_ts;
@ -325,14 +326,51 @@ splitmux_is_flushing (GstSplitMuxPartReader * reader)
return FALSE;
}
static gboolean
enqueue_event (GstSplitMuxPartReader * reader, GstSplitMuxPartPad * part_pad,
GstEvent * event)
{
gboolean ret = TRUE;
GstDataQueueItem *item;
GST_LOG_OBJECT (reader, "Enqueueing event %" GST_PTR_FORMAT, event);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (event);
item->size = 0;
item->duration = 0;
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = FALSE;
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
ret = FALSE;
}
return ret;
}
static gboolean
resend_sticky_event (GstPad * pad, GstEvent ** event, gpointer user_data)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
GST_DEBUG_OBJECT (part_pad, "queuing sticky event %" GST_PTR_FORMAT, *event);
(void) enqueue_event (reader, part_pad, gst_event_ref (*event));
return TRUE;
}
static gboolean
splitmux_part_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
gboolean ret = TRUE;
gboolean resend_sticky = FALSE;
SplitMuxSrcPad *target;
GstDataQueueItem *item;
SPLITMUX_PART_LOCK (reader);
@ -413,6 +451,8 @@ splitmux_part_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
reader->prep_state == PART_STATE_PREPARING_MEASURE_STREAMS) {
/* Mark this pad as EOS */
part_pad->is_eos = TRUE;
/* Mark the pad to re-send sticky events on the first activation */
part_pad->first_activation = TRUE;
if (splitmux_part_is_eos_locked (reader)) {
/* Finished measuring things, set state and tell the state change func
* so it can seek back to the start */
@ -475,25 +515,22 @@ splitmux_part_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
break;
}
/* Re-queue any sticky events on the first activation that were
* dropped during probing */
if (part_pad->first_activation) {
resend_sticky = TRUE;
part_pad->first_activation = FALSE;
}
/* We are active, and one queue is empty, place this buffer in
* the dataqueue */
gst_object_ref (part_pad->queue);
SPLITMUX_PART_UNLOCK (reader);
GST_LOG_OBJECT (reader, "Enqueueing event %" GST_PTR_FORMAT, event);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (event);
item->size = 0;
item->duration = 0;
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = FALSE;
if (resend_sticky)
gst_pad_sticky_events_foreach (pad, resend_sticky_event, NULL);
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
ret = FALSE;
}
ret = enqueue_event (reader, part_pad, event);
gst_object_unref (part_pad->queue);
gst_object_unref (target);
@ -508,11 +545,11 @@ wrong_segment:
reader->path, pad));
return FALSE;
drop_event:
SPLITMUX_PART_UNLOCK (reader);
GST_LOG_OBJECT (pad, "Dropping event %" GST_PTR_FORMAT
" from %" GST_PTR_FORMAT " on %" GST_PTR_FORMAT, event, pad, target);
gst_event_unref (event);
gst_object_unref (target);
SPLITMUX_PART_UNLOCK (reader);
return TRUE;
}