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decodebin3: Make sure event is writable before modifying

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Make sure we're operating on a private copy of an event when
modifying it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3146>
This commit is contained in:
Jan Schmidt 2022-10-01 04:41:06 +10:00 committed by Tim-Philipp Müller
parent 32e175026f
commit 2a683372bc
1 changed files with 7 additions and 0 deletions
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7
subprojects/gst-plugins-base/gst/playback/gstdecodebin3.c
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@ -1941,8 +1941,11 @@ multiqueue_src_probe (GstPad * pad, GstPadProbeInfo * info,
if (gst_mini_object_get_qdata (GST_MINI_OBJECT_CAST (ev),
CUSTOM_EOS_QUARK)) {
/* remove custom-eos */
ev = gst_event_make_writable (ev);
GST_PAD_PROBE_INFO_DATA (info) = ev;
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (ev),
CUSTOM_EOS_QUARK, NULL, NULL);
GST_LOG_OBJECT (pad, "Received custom EOS");
ret = GST_PAD_PROBE_HANDLED;
SELECTION_LOCK (dbin);
@ -1995,6 +1998,10 @@ multiqueue_src_probe (GstPad * pad, GstPadProbeInfo * info,
dbin->slots = g_list_remove (dbin->slots, slot);
SELECTION_UNLOCK (dbin);
/* FIXME: Removing the slot is async, which means actually
* unlinking the pad is async. Other things like stream-start
* might flow through this (now unprobed) link before it actually
* gets released */
free_multiqueue_slot_async (dbin, slot);
ret = GST_PAD_PROBE_REMOVE;
} else if (gst_mini_object_get_qdata (GST_MINI_OBJECT_CAST (ev),