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    <div class="moz-cite-prefix">On 25-06-2022 17:34, Nicolas Dufresne
      via gstreamer-devel wrote:<br>
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cite="mid:CAKQmDh_XfxYC9Vg9cfj-xB-RLajyEePJid+Nzyn1PTOAPwRD5g@mail.gmail.com">
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            <div dir="ltr" class="gmail_attr">Le ven. 24 juin 2022, 14 h
              14, Michiel Konstapel <<a
                href="mailto:michiel@aanmelder.nl"
                moz-do-not-send="true" class="moz-txt-link-freetext">michiel@aanmelder.nl</a>>
              a écrit :<br>
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                <p>Hi Nicolas,<br>
                </p>
                <div>On 24-06-2022 19:50, Nicolas Dufresne via
                  gstreamer-devel wrote:<br>
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                  <div dir="auto">
                    <div>Hi,<br>
                      <br>
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gstv4l2bufferpool.c:478:gst_v4l2_buffer_pool_alloc_buffer:<v4l2src0:pool0:src>
                          <br>
                          newly allocated buffer 1 is not free<br>
                          <br>
                          Despite the warnings, the pipeline appears to
                          work, but I would prefer <br>
                          it to not spam warnings continuously :) Any
                          ideas? This is on Ubuntu <br>
                          20.04, on different PCs and with different
                          cameras.<br>
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                    <div dir="auto"><br>
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                    <div dir="auto">Do you have any information about
                      the driver?</div>
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                <p>It's a very common Logitech C920 webcam (but I've
                  seen the same message with a Z-Cam M3 camera). I think
                  that uses a generic UVC driver? Anything I can run to
                  get you more info?</p>
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        <div dir="auto">I'm asking as I cannot reproduce, and from the
          look of it, the trace implies is will leak data. Which Kernel?
          Have you tested with your own GStreamer build (main branch)?</div>
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    <p>$ uname -a<br>
      Linux xubuntux 5.4.0-121-generic #137-Ubuntu SMP Wed Jun 15
      13:33:07 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux<br>
    </p>
    <p>Gstreamer is built from source, from the 1.20.3 tag.</p>
    <p>I have also just built it from main (commit
      0e551871c45a1b9fd67d99d2d4f31a983f1b3217) and that shows the
      effect as well.</p>
    <p>Michiel<br>
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