Video artefacts

JPM jpmelian at gmail.com
Thu Feb 6 03:51:59 PST 2014


Hi,

Thanks Sebastian.

I have changed to 640x480 20 fps and it works quite fine. There were
artefacts with 30 fps.

I think it is a CPU processing capacity problem.

Is it possible H264 decoding process can use more than one core or GPU ?.

Regards.


2014-02-04 Sebastian Dröge <sebastian at centricular.com>:

> On Fr, 2014-01-31 at 12:27 +0100, JPM wrote:
> > Hi,
> >
> > The Android device (NEXUS 7 (2013), Android 4.4.2) is receiving a H264
> over
> > RTP over UDP video stream
> > with this pipeline; data->pipeline = gst_parse_launch("udpsrc port=5001 !
> > application/x-rtp, payload=96 ! rtph264depay ! ffdec_h264 !
> > ffmpegcolorspace ! autovideosink", &error);
> >
> > The server is sending video with a resolution of 320x240 and everything
> is
> > Ok.
> >
> > When I change the resolution to 640x480 there are lot of video artefacts
> in
> > the client (Nexus 7).
> >
> > The Android application is based in Android Gstreamer SDK tutorial-3.
> >
> > Any idea to fix this ?.
>
> Try to find the reason why it causes artefacts. Are too many packets
> getting lost?
>
> You should also use rtpbin for RTP to be actually useful, and might also
> want to use gst-rtsp-server for simplicity if you can use RTSP.
>
> For rtpbin usage see gst-plugins-good/tests/examples/rtp. There are some
> shell scripts that show how it can be used.
>
>
> Apart from that you should consider to upgrade to GStreamer 1.x, e.g. by
> using the binaries provided here by the GStreamer project:
> http://gstreamer.freedesktop.org/data/pkg/android/1.2.2/
>
> --
> Sebastian Dröge, Centricular Ltd - http://www.centricular.com
> Expertise, Straight from the Source
>
> _______________________________________________
> gstreamer-android mailing list
> gstreamer-android at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-android
>
>
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