UDP sink Gstreamer + Android

[Dmitri Afanasjev]

Thanks you Sebastian, I'll digg into documentation.

пт, 3 апр. 2015 г. в 22:38, Sebastian Dröge <sebastian at centricular.com>:

> On Fr, 2015-04-03 at 19:30 +0000, Dmitri Afanasjev wrote:
> > Hello!
> >
> > I have udp stream which is generated by:
> >
> > raspivid -t 999999 -w 1296 -h 730 -fps 30 -b 20000000 -o - |
> gst-launch-1.0
> > -e -vvvv fdsrc ! h264parse ! rtph264pay pt=96 name=pay0
> config-interval=5 !
> > udpsink host=<destination ip> port=5001
> >
> > Receiver part on Windows looks like:
> >
> > C:\Users\Dmitri>gst-launch-1.0 -e -v udpsrc port=5001 !
> application/x-rtp,
> > media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264,
> >  sprop-parameter-sets=\"J2QA
> > KKwrQCiC78kA8SJq\\,KO4fLA\\\=\\\=\", payload=(int)96 ! rtph264depay !
> > avdec_h264 ! autovideosink
> >
> > (caps are taken from transmitter part) so all works well.
> >
> > Now i want to create the same pipeline in Android. I'm using tutorial 5
> > from GStreamer SDK modified to work with RTMP streams as starting point.
> >
> > when i create pipline with:
> >
> > data->pipeline = gst_parse_launch("udpsrc port=5001
> > caps=\"application/x-rtp, media=video,  clock-rate=90000,
> > encoding-name=H264, payload=96\" ! rtph264depay ! h264parse ! avdec_h264
> !
> > autovideosink sync=false", &error);
> >
> > nothing start playing and i see the error in logcat
> >
> > W/GLib+GLib-GObject﹕ invalid cast from 'GstPipeline' to 'GstVideoOverlay'
> > E/GLib﹕ gst_video_overlay_set_window_handle: assertion
> > 'GST_IS_VIDEO_OVERLAY (overlay)' failed
> >
> > As i understand I need to give the rendering point to my pipline, but
> error
> > occured.
> >
> > How its possible to receive UDP stream as I've done in Winows
> environment,
> > how should look like pipline in Android JNI ?
>
> The pipeline is correct, but you have to understand the actual code
> there. Tutorial 5 uses playbin, which implements the GstVideoOverlay
> interface. And that is used by Tutorial 5 to tell playbin where to
> render the video.
>
> A generic pipeline like yours does not implement GstVideoOverlay, so
> Tutorial 5 just fails. You have to change the code so that it uses the
> GstVideoOverlay interface of the video sink directly, see the
> documentation how to do that.
>
> --
> Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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>
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