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decodebin: Don't hold EXPOSE_LOCK in type_found() outside the stream lock

Browse source 
In other places we lock it the other way around, leading to possible
deadlocks. Also this will deadlock if analyze_pad() causes a new element to be
autoplugged that adds new pads on itself when its state is changed.

https://bugzilla.gnome.org/show_bug.cgi?id=763491
This commit is contained in:
Sebastian Dröge 2016-03-12 19:45:26 +02:00
parent 0a434e9c6c
commit 001c7f04a0
1 changed files with 2 additions and 5 deletions
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7
gst/playback/gstdecodebin2.c
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@ -2841,7 +2841,6 @@ type_found (GstElement * typefind, guint probability,
goto exit;
}
EXPOSE_LOCK (decode_bin);
pad = gst_element_get_static_pad (typefind, "src");
sink_pad = gst_element_get_static_pad (typefind, "sink");
@ -2862,17 +2861,15 @@ type_found (GstElement * typefind, guint probability,
if (analyze_new_pad (decode_bin, typefind, pad, caps,
decode_bin->decode_chain, NULL))
expose_pad (decode_bin, typefind, decode_bin->decode_chain->current_pad,
pad, caps, decode_bin->decode_chain, FALSE);
pad, caps, decode_bin->decode_chain, TRUE);
gst_decode_chain_unref (chain);
}
GST_PAD_STREAM_UNLOCK (sink_pad);
gst_object_unref (sink_pad);
gst_object_unref (pad);
EXPOSE_UNLOCK (decode_bin);
exit:
return;
}