AW: x264enc -> appsink motion issues

[Thornton, Keith]

Hi,
It sounds to me like a timer problem to me. X286enc will probably not output the frames in presentation timestamp order. If you do any timestamp manipulation, this may result in your backward movements
Grüße

Von: gstreamer-devel [mailto:gstreamer-devel-bounces at lists.freedesktop.org] Im Auftrag von Mike T.
Gesendet: Dienstag, 28. Februar 2017 03:01
An: gstreamer-devel at lists.freedesktop.org
Betreff: x264enc -> appsink motion issues

I have a need to use a 3rd party RTP stack with Gstreamer for sending H.264.  I have a pipeline that has x264enc sourcing to appsink and I am able to send the RTP packets and decode them.  However, the motion in the decoded video is strange. Imagine an object moving smoothly across the screen such as in the videotestsrc bouncing ball test pattern.  Instead of moving smoothly it moves forward and then backwards a bit and repeats that motion.  Sort of like a 3 steps forward and 1 step back.  So it completes all the motion but with this jerky progress.

What can cause this?  I imagine I must set some caps on appsink or something but I'm a newbie to GStreamer and haven't found an answer yet.

Thanks,

Mike
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