Gapless Playback with Playbin

Luis de Bethencourt luis at debethencourt.com
Mon Jul 14 08:35:09 PDT 2014


Hi David,

Can you generate the log again with a lower debug level? Your current log
is 100mb big and very very long. Would be easier to debug with a lower
debug level.

Thanks,
Luis


On 11 July 2014 08:35, David W. Harks <dave at dwink.net> wrote:

> GStreamer wizards,
>
> My GStreamer-based app is intended to play H.264 video clips back-to-back
> in gapless fashion. It uses playbin and the 'about-to-finish' signal to
> change URIs, as the various examples and advice about this shows.
>
> Unfortunately, I'm seeing a 5-10 frame 'pause' when switching URIs. What
> seems to be happening is that the sink stops rendering frames for a brief
> period, leaving a static frame visible, then 'catches up' and starts
> rendering again, skipping the first few frames of the next clip. I tried
> taking the same clips and playing them with gst-play-1.0 --gapless and I
> get the same result.
>
> My question is, how can I narrow down what's going on here? And is there
> anything I can do to get frame-perfect transitions? I created a debug log
> with GST_DEBUG=5 here: https://www.dropbox.com/s/
> 0rdzlrcaz77wbkc/dbg.out.gz
>
> Unfortunately, I'm not quite sure how to interpret this output.
>
> Thanks for your expertise!
>
> -d
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
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