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Bug 579127 - gst-launch: disable CLOCK_LOST message handling
gst-launch: disable CLOCK_LOST message handling
Product: GStreamer
Classification: Platform
Component: gstreamer (core)
git master
Other Linux
: Normal blocker
: 0.10.31
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Reported: 2009-04-16 08:49 UTC by Wim Taymans
Modified: 2010-10-13 05:27 UTC
See Also:
GNOME target: ---
GNOME version: ---

Proposed patch to disable CLOCK_LOST message handling (720 bytes, patch)
2009-04-16 08:52 UTC, Wim Taymans
committed Details | Review

Description Wim Taymans 2009-04-16 08:49:50 UTC
Disable the recently added handling of the CLOCK_LOST message, some elements (rtspsrc) does not seem to deal very well with the rapid PAUSED/PLAYING state change.

We need to enable this when it's fixed in rtspsrc and we made a release of -good (or alternatively -bad now that gstrtpbin does not provide a clock anymore).

Patch follows.
Comment 1 Wim Taymans 2009-04-16 08:52:45 UTC
Created attachment 132743 [details] [review]
Proposed patch to disable CLOCK_LOST message handling

Simply comment out the code with some comments.
Comment 2 Wim Taymans 2009-04-16 10:03:25 UTC
commit 1f8eba611a63f45766c38c640288e42b27b10bd4
Author: Wim Taymans <>
Date:   Thu Apr 16 12:01:50 2009 +0200

    -launch: disable CLOCK_LOST message handling
    Disable the handling of the CLOCK_LOST messages until we fixed and released the
    elements (rtspsrc) that break when we quickly PAUSE/PLAY the pipeline.
    Fixes #579127
Comment 3 Sebastian Dröge (slomo) 2010-07-10 12:57:37 UTC
We should revert this change after 0.10.30 and make sure that good/bad is fixed.
Comment 4 Sebastian Dröge (slomo) 2010-07-16 15:34:35 UTC
commit be77e8d6e1205f3737df6995843901fb90b484a1
Author: Sebastian Dröge <>
Date:   Wed Jul 14 19:47:43 2010 +0200

    Revert "-launch: disable CLOCK_LOST message handling"
    This reverts commit 1f8eba611a63f45766c38c640288e42b27b10bd4.
    This should be fixed now (and if not should be fixed) and the
    clock-lost handling is now needed for playbin2 gapless playback.
    See bug #579127.
Comment 5 Tim-Philipp Müller 2010-10-13 00:09:10 UTC
I guess this is all good now.

The only question is: do we need to implement this in apps like totem? It's another one of those barely documented things that people writing apps just have to know..
Comment 6 Sebastian Dröge (slomo) 2010-10-13 05:27:14 UTC
Yes, apps like totem, rhythmbox, banshee, etc have to implement this too