Seeking with kmssink does not work

Nicolas Dufresne nicolas at
Sat Dec 21 15:39:50 UTC 2019

Le samedi 21 décembre 2019 à 08:01 -0600, moritz.vieli a écrit :
> Just checked the new version. It does not work either. The problem also
> persists with glimagesink, so maybe you're right and it's the decoder.
> Maybe this warning is the root cause?
> 0:00:00.788157898   773 0xacc08e90 WARN            v4l2videodec
> gstv4l2videodec.c:811:gst_v4l2_video_dec_decide_allocation:<v4l2h264dec0>
> Duration invalid, not setting latency

This should probably be changed to INFO, it just means that there is no
framerate, so we cannot estimate the latency. It should only affect
live playback, making the frames late.

Note that on my tests on DB410c, seeking works sometimes, but stalls at
other time. This use to work reliably, at least on Samsung MFC driver
(Thibault being last person who debugged this). You should maybe share
a little more info about what you are doing. Also, you should check
your kernel logs too, as there is a good deal of work done by the

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