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<div class="moz-cite-prefix">On 01/22/2015 08:01 PM, Briner Cédric
wrote:<br>
</div>
<blockquote cite="mid:54C18162.7050708@infomaniak.ch" type="cite">hello,
<br>
<br>
<blockquote type="cite">If you search the logs for
"gst_qt_mux_handle_buffer:<mux> selected pad"
<br>
you should see the buffers that are selected for muxing and you
can
<br>
notice how one of the videos is stalled while the other is
running.
<br>
</blockquote>
thanks for the explanation.
<br>
<br>
<blockquote type="cite">What source elements are you using? I'd
recommend investigating how they
<br>
timestamp buffers.
<br>
</blockquote>
I'm using a datapath-e1s[1] and a webcam. I've also tested it with
two
<br>
webcams and the problem was the same. As mentionned before, the
test
<br>
script is on pastebin[2]. Maybe you could try to test it at home
with 2
<br>
webcams.
<br>
<br>
Furthermore, I'd like to point you that I'm doing it on a ubuntu
14.04 which uses [3] gstreamer-1.2.3-1.
<br>
<br>
> Would you me to tell you more information on the device
itself.
<br>
<br>
lspci -v ; # for the datapath-e1s
<br>
...
<br>
02:00.0 Multimedia video controller: Datapath Limited VisionRGB-E1
<br>
Subsystem: Datapath Limited Device 1139
<br>
Flags: fast Back2Back, 66MHz, medium devsel, IRQ 16
<br>
Memory at f7980000 (32-bit, non-prefetchable) [size=512K]
<br>
Capabilities: <access denied>
<br>
Kernel driver in use: rgb133
<br>
...
<br>
<br>
lsusb -d 0c45:6341 ;# for the webcam
<br>
Bus 002 Device 003: ID 0c45:6341 Microdia
<br>
<br>
and also the verbose output of the webcam in the attached file.
<br>
<br>
<br>
Tell me if this information are the one you were looking for. And
if not, please tell me the command that you like me to execute.
<br>
</blockquote>
<br>
Unfortunately I don't have 2 webcams to test your issue.<br>
Run your pipeline with GST_DEBUG=6 and upload the output somewhere
public so we can take a look.<br>
<br>
<blockquote cite="mid:54C18162.7050708@infomaniak.ch" type="cite">
<br>
Many thanks for your help.
<br>
<br>
cED
<br>
<br>
[1]
<br>
<a class="moz-txt-link-freetext" href="http://www.datapath.co.uk/products/video-capture-cards/vision-range/visionrgb-e1s">http://www.datapath.co.uk/products/video-capture-cards/vision-range/visionrgb-e1s</a>
<br>
[2] <a class="moz-txt-link-freetext" href="http://pastebin.com/KL641ULY">http://pastebin.com/KL641ULY</a>
<br>
[3] <a class="moz-txt-link-freetext" href="http://packages.ubuntu.com/trusty/gstreamer1.0-x">http://packages.ubuntu.com/trusty/gstreamer1.0-x</a>
<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</pre>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Thiago Sousa Santos
Senior Multimedia Engineer, Open Source Group
Samsung Research America - Silicon Valley</pre>
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