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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks a lot!!!<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

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<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Von:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> gstreamer-devel
[mailto:gstreamer-devel-bounces@lists.freedesktop.org] <b><span
style='font-weight:bold'>Im Auftrag von </span></b>Sérgio Agostinho<br>
<b><span style='font-weight:bold'>Gesendet:</span></b> Samstag, 13. Dezember
2014 19:48<br>
<b><span style='font-weight:bold'>An:</span></b> <st1:PersonName w:st="on">Discussion
 of the development of and with GStreamer</st1:PersonName><br>
<b><span style='font-weight:bold'>Betreff:</span></b> Re: dynamic videomixing</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>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. <o:p></o:p></span></font></p>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>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<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2014-12-13 19:34 GMT+01:00 Bernhard Graaf <<a
href="mailto:bernhard.graaf@gmx.de" target="_blank">bernhard.graaf@gmx.de</a>>:<o:p></o:p></span></font></p>

<div link=blue vlink=blue>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Absolute the same result.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center>

</span></font></div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:
bold'>Von:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> gstreamer-devel [mailto:<a
href="mailto:gstreamer-devel-bounces@lists.freedesktop.org" target="_blank">gstreamer-devel-bounces@lists.freedesktop.org</a>]
<b><span style='font-weight:bold'>Im Auftrag von </span></b>Sérgio Agostinho<br>
<b><span style='font-weight:bold'>Gesendet:</span></b> Samstag, 13. Dezember
2014 19:18</span></font><o:p></o:p></p>

<div>

<div>

<p class=MsoNormal><font size=3 face=Tahoma><span style='font-size:12.0pt;
font-family:Tahoma'><br>
<b><span style='font-weight:bold'>An:</span></b> <st1:PersonName w:st="on">Discussion
 of the development of and with GStreamer</st1:PersonName><br>
<b><span style='font-weight:bold'>Betreff:</span></b> Re: dynamic videomixing</span></font><o:p></o:p></p>

</div>

</div>

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<div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>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?<o:p></o:p></span></font></p>

</div>

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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>2014-12-13 18:46
GMT+01:00 Bernhard Graaf <<a href="mailto:bernhard.graaf@gmx.de"
target="_blank">bernhard.graaf@gmx.de</a>>:<o:p></o:p></span></font></p>

<div link=blue vlink=blue>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>See attached files</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center>

</span></font></div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:
bold'>Von:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> gstreamer-devel [mailto:<a
href="mailto:gstreamer-devel-bounces@lists.freedesktop.org" target="_blank">gstreamer-devel-bounces@lists.freedesktop.org</a>]
<b><span style='font-weight:bold'>Im Auftrag von </span></b>Sérgio Agostinho<br>
<b><span style='font-weight:bold'>Gesendet:</span></b> Samstag, 13. Dezember
2014 18:23</span></font><o:p></o:p></p>

<div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face=Tahoma><span style='font-size:12.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>An:</span></b> <st1:PersonName w:st="on">Discussion
 of the development of and with GStreamer</st1:PersonName><br>
<b><span style='font-weight:bold'>Betreff:</span></b> Re: dynamic videomixing</span></font><o:p></o:p></p>

</div>

</div>

</div>

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<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Paste the console
output of your pipeline<o:p></o:p></span></font></p>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>
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<br>
<br>
and also with the videomixer<o:p></o:p></span></font></p>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

</div>

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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>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<o:p></o:p></span></font></p>

</div>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

</div>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>2014-12-13 18:12
GMT+01:00 Bernhard Graaf <<a href="mailto:bernhard.graaf@gmx.de"
target="_blank">bernhard.graaf@gmx.de</a>>:<o:p></o:p></span></font></p>

<div link=blue vlink=blue>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Hi Sèrgio,</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>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). </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>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</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>The pipeline is hanging. If I remove only the
videomixer, the pipeline is working well.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>The gst_pad_link() returned
‘GST_PAD_LINK_NOFORMAT’.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>Any Idea?</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>Bernhard</span></font><o:p></o:p></p>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center>

</span></font></div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:
bold'>Von:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> gstreamer-devel [mailto:<a
href="mailto:gstreamer-devel-bounces@lists.freedesktop.org" target="_blank">gstreamer-devel-bounces@lists.freedesktop.org</a>]
<b><span style='font-weight:bold'>Im Auftrag von </span></b>Sérgio Agostinho<br>
<b><span style='font-weight:bold'>Gesendet:</span></b> Samstag, 13. Dezember
2014 16:38<br>
<b><span style='font-weight:bold'>An:</span></b> <st1:PersonName w:st="on">Discussion
 of the development of and with GStreamer</st1:PersonName><br>
<b><span style='font-weight:bold'>Betreff:</span></b> Re: dynamic videomixing</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

<div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Hi Bernhard, <o:p></o:p></span></font></p>

</div>

<div>

<div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>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<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>gst-launch-1.0 -ev
v4l2src ! videomixer ! xvimagesink<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Regarding the
second question. <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><a
href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#gst-pad-link"
target="_blank">gst_pad_link()</a> returns the reason why the link failed,
and it is normally quite descriptive as you can see on <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><a
href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstPadLinkReturn"
target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstPadLinkReturn</a>
. Try to see what it is returning in your case.<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

</div>

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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Also have you
tried to test your pipeline in gst-launch with the video mixer?<o:p></o:p></span></font></p>

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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Sérgio<o:p></o:p></span></font></p>

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<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>
_______________________________________________<br>
gstreamer-devel mailing list<br>
<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br>
<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"
target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><o:p></o:p></span></font></p>

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<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>
_______________________________________________<br>
gstreamer-devel mailing list<br>
<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br>
<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"
target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><o:p></o:p></span></font></p>

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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
_______________________________________________<br>
gstreamer-devel mailing list<br>
<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br>
<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"
target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><o:p></o:p></span></font></p>

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