[Bug 715192] videodecoder: Cannot accumulate buffer while downstream is blocked

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=715192

Jan Schmidt <thaytan at noraisin.net> changed:

           What    |Removed                     |Added
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                 CC|                            |thaytan at noraisin.net

--- Comment #32 from Jan Schmidt <thaytan at noraisin.net> ---
This makes gst_video_decoder_clip_and_push_buf() drop the STREAM_LOCK where it
didn't before, but gst_video_decoder_flush_parse() calls it assuming that the
priv->output_queued list can't be mutated while it's called.

A poorly timed flush in reverse playback could double-unref a queued buffer. It
can be fixed by moving the g_list_delete_link() logic to the top of the loop in
gst_video_decoder_flush_parse()

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