Error in video scaling

[JPM]

Hi Tim,

There are not errors with the changes you suggest but it seems that the
scaling process is not working because
the video has lot of artifacts and this happen when Galaxy mini 2 mobile
phone receives video with a resolution
greater than 320x240.

Thanks and Regards.


2013/9/28 Tim-Philipp Müller <t.i.m at zen.co.uk>

> On Fri, 2013-09-27 at 14:30 +0200, JPM wrote:
>
> Hi,
>
> > The Android device (Samsung Galaxy mini 2, Android 2.3.6) is receiving
> > a video stream H264 over RTP over UDP.
> > The video resolution is 1024x768 but I want to downscaling it to
> > 320x240 with this pipeline :
> >
> >
> > data->pipeline = gst_parse_launch("udpsrc port=5001 !
> > application/x-rtp, payload=96 ! rtph264depay ! ffdec_h264 !
> > videoscale ! video/x-raw, width=320, height=240 ! autovideosink
> > sync=false", &error);
> >
> >
> > It does not work, there is the following error : Unable to build
> > pipeline: could not link videoscale0 to autovideosink0
>
> I'm guessing that you're using the old 0.10 version and not the new
> official GStreamer 1.0 SDK packages from
> http://gstreamer.freedesktop.org/pkg/android/
>
> The format for raw audio/video caps was slightly different in 0.10. You
> are using the 1.0-style caps here in your pipeline.
>
> Try something like:
>
> udpsrc port=5001 ! application/x-rtp, payload=96 ! rtph264depay !
> ffdec_h264 ! videoscale ! video/x-raw-yuv,width=320,height=240 !
> ffmpegcolorspace ! autovideosink sync=false
>
> (in case you ever do want to show the stream with proper sync I would
> suggest you also add a gstrtpjitterbuffer after the udpsrc).
>
> Cheers
>  -Tim
>
>
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> gstreamer-android at lists.freedesktop.org
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>
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