[Bug 727779] matroskademux: crash while seeking

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=727779
  GStreamer | gst-plugins-good | 1.x

--- Comment #1 from Jan Alexander Steffens (heftig) <jan.steffens at gmail.com> 2014-04-08 09:40:47 UTC ---
Created an attachment (id=273773)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=273773)
GDB log

I think I triggered this in a gst-launch pipeline:

gst-launch-1.0 -m -v tcpclientsrc ! queue2 ring-buffer-max-size=10000000 !
matroskademux name=dem ! video/x-raw ! mq.sink_0 multiqueue name=mq
use-buffering=true max-size-bytes=0 max-size-buffers=0 max-size-time=1000000000
dem. ! audio/x-raw ! mq.sink_1 mq.src_0 ! identity silent=0 ! navseek
seek-offset=1 ! xvimagesink mq.src_1 ! audioconvert ! alsasink

(It receives a Matroska stream containing video/x-raw and audio/x-raw streams.)

GDB log attached; note thread 8 (nav event -> navseek -> seek event ->
matroskademux -> pad_pull_range -> queue2) crashing in a memcpy.

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