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Bug 752655 - qtdemux: support 'subt' subtype for subtitle tracks
qtdemux: support 'subt' subtype for subtitle tracks
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
git master
Other other
: Normal normal
: 1.5.90
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Reported: 2015-07-21 05:17 UTC by Paul Kim
Modified: 2015-08-16 13:39 UTC
See Also:
GNOME target: ---
GNOME version: ---

A patch to support fourcc_subt (2.00 KB, patch)
2015-07-21 05:22 UTC, Paul Kim
none Details | Review
Support subtitle when track subtype is fourcc_subt (1.99 KB, patch)
2015-07-21 11:09 UTC, Paul Kim
committed Details | Review

Description Paul Kim 2015-07-21 05:17:58 UTC
When testing the mpd below that contains subtitle data, crash occurs.
Comment 1 Paul Kim 2015-07-21 05:22:58 UTC
Created attachment 307794 [details] [review]
A patch to support fourcc_subt
Comment 2 Paul Kim 2015-07-21 05:23:35 UTC
Comment 3 Paul Kim 2015-07-21 05:24:42 UTC, please take a look at this simple change. Thanks.
Comment 4 Tim-Philipp Müller 2015-07-21 10:33:16 UTC
Yes, but it should also not crash if the subtype is not supported.

Could you provide a stack trace?
Comment 5 Paul Kim 2015-07-21 11:09:32 UTC
Created attachment 307822 [details] [review]
Support subtitle when track subtype is fourcc_subt
Comment 6 Paul Kim 2015-07-21 11:10:13 UTC
Oh.. My bad! The crash did not come from upstream qtdemux, but from my own system. However, the track subtype of this mpd ( is observed as "subt", so we may still need to consider this change.
I revised the commit message and uploaded as new patch.
Comment 7 Tim-Philipp Müller 2015-07-21 11:25:47 UTC
Pushed, thanks:

commit 3740e69957a6cac7b7e9dae992e04335f966213a
Author: Paul Hyunil <>
Date:   Thu Jul 16 09:32:36 2015 +0900

    qtdemux: Support subtitle when track subtype is fourcc_subt