dynamic videomixing

[Sérgio Agostinho]

Gave it some more tests and apparently the issue is with
the pixel-aspect-ratio=64/45. The videomixer does not like it. I managed to
work around it by adding a videoscale element before the the videomixer.

gst-launch-1.0 -ve videotestsrc ! video/x-raw, format=I420, width=720,
height=576, pixel-aspect-ratio=64/45, interlace-mode=mixed,
chroma-site=mpeg2, colorimetry=bt601, framerate=25/1 ! videoscale !
videomixer ! xvimagesink


2014-12-13 19:34 GMT+01:00 Bernhard Graaf <bernhard.graaf at gmx.de>:
>
>   Absolute the same result.
>
>
>  ------------------------------
>
> *Von:* gstreamer-devel [mailto:
> gstreamer-devel-bounces at lists.freedesktop.org] *Im Auftrag von *Sérgio
> Agostinho
> *Gesendet:* Samstag, 13. Dezember 2014 19:18
>
> *An:* Discussion of the development of and with GStreamer
> *Betreff:* Re: dynamic videomixing
>
>
>
> It is clear that you're having a format issue when you're adding the
> videomixer.  What happens if you place a deinterlace element before the
> videomixer?
>
>
>
> 2014-12-13 18:46 GMT+01:00 Bernhard Graaf <bernhard.graaf at gmx.de>:
>
> See attached files
>
>
>  ------------------------------
>
> *Von:* gstreamer-devel [mailto:
> gstreamer-devel-bounces at lists.freedesktop.org] *Im Auftrag von *Sérgio
> Agostinho
> *Gesendet:* Samstag, 13. Dezember 2014 18:23
>
>
> *An:* Discussion of the development of and with GStreamer
> *Betreff:* Re: dynamic videomixing
>
>
>
> Paste the console output of your pipeline
>
>
> gst-launch-1.0 -v tcpclientsrc host='192.168.1.4' port=12000 ! queue2 !
> decodebin name=decoder decoder. ! queue ! audioconvert ! audioresample !
> pulsesink   decoder. !  queue ! videoconvert ! xvimagesink
>
> and also with the videomixer
>
>
>
> gst-launch-1.0 -v tcpclientsrc host='192.168.1.4' port=12000 ! queue2 !
> decodebin name=decoder decoder. ! queue ! audioconvert ! audioresample !
> pulsesink   decoder. !  queue ! videoconvert ! videomixer ! xvimagesink
>
>
>
>
>
>
>
> 2014-12-13 18:12 GMT+01:00 Bernhard Graaf <bernhard.graaf at gmx.de>:
>
> Hi Sèrgio,
>
>
>
> I have checked this. If I try to test the pipeline with gst-launch, I get
> the same result (whatever position, before queue, after queue, after
> videoconvert).
>
> gst-launch-1.0 -vvv tcpclientsrc host='192.168.1.4' port=12000 ! queue2 !
> decodebin name=decoder decoder. ! queue ! audioconvert ! audioresample !
> pulsesink   decoder. !  queue ! videoconvert ! xvimagesink
>
> The pipeline is hanging. If I remove only the videomixer, the pipeline is
> working well.
>
> The gst_pad_link() returned ‘GST_PAD_LINK_NOFORMAT’.
>
>
>
> Any Idea?
>
>
>
> Bernhard
>  ------------------------------
>
> *Von:* gstreamer-devel [mailto:
> gstreamer-devel-bounces at lists.freedesktop.org] *Im Auftrag von *Sérgio
> Agostinho
> *Gesendet:* Samstag, 13. Dezember 2014 16:38
> *An:* Discussion of the development of and with GStreamer
> *Betreff:* Re: dynamic videomixing
>
>
>
> Hi Bernhard,
>
>
>
> I've tested the pipeline below and it works so the answer to your initial
> question is, yes you can have only one sink pad in the video mixer
>
> gst-launch-1.0 -ev v4l2src ! videomixer ! xvimagesink
>
>
>
> Regarding the second question.
>
> gst_pad_link()
> <http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#gst-pad-link> returns
> the reason why the link failed, and it is normally quite descriptive as you
> can see on
>
>
> http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstPadLinkReturn
> . Try to see what it is returning in your case.
>
>
>
> Also have you tried to test your pipeline in gst-launch with the video
> mixer?
>
>
>
> Sérgio
>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20141213/e9423c98/attachment.html>