<div dir="ltr">Thanks, that's great!<div><br></div><div>One last problem (I hope): how would I be able to programmatically get those elements in the video-sink bin?</div><div><br></div><div>gst_bin_get_by_name() on the main pipeline does not work anymore, e.g. when searching for the glupload, even though the function supposedly also looks into child bins.</div><div><br></div><div>Also tried iterating over sinks with gst_bin_iterate_sink() and look for my glupload there, but didn't seem to work.</div><div><br></div><div>G</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 16, 2016 at 3:05 PM, Matthew Waters <span dir="ltr"><<a href="mailto:ystreet00@gmail.com" target="_blank">ystreet00@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF"><span class="">
    <div>On 16/09/16 22:53, Gottfried Haider
      wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">Thanks Matt!
        <div><br>
        </div>
        <div>Regarding the playbin-option: Is it possible to create a
          "custom video branch" (GstBin) as part of a textual pipeline
          description? (that is being fed to gst_parse_launch)</div>
      </div>
    </blockquote>
    <br></span>
    You can create a bin as the video-sink for gst-launch-1.0.  You just
    need to enclose the video-sink parameter in double quotes and a bin
    should be created with your elements inside.<br>
    <br>
    e.g. gst-launch-1.0 playbin uri=<a>file:///path/to/file</a>
    video-sink="glupload ! glcolorconvert ! glfiltercube !
    glimagesinkelement" will cubify the video.<br>
    <br>
    Cheers<br>
    -Matt<div><div class="h5"><br>
    <br>
    <blockquote type="cite">
      <div dir="ltr">
        <div>Or do I need to create a new bin in code, set it up with
          glupload ! capsfilter ! fakesink (like in testegc [1]), and
          later use gst_pipeline_new() and
          gst_parse_bin_from_<wbr>description() to create a custom pipeline
          that references the video bin created earlier?</div>
        <div><br>
        </div>
        <div>Best</div>
        <div>G</div>
        <div><br>
        </div>
        <div>[1] <a href="https://cgit.freedesktop.org/gstreamer/gst-omx/tree/examples/egl/testegl.c#n1079" target="_blank">https://cgit.freedesktop.<wbr>org/gstreamer/gst-omx/tree/<wbr>examples/egl/testegl.c#n1079</a></div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Fri, Sep 16, 2016 at 2:26 PM,
          Matthew Waters <span dir="ltr"><<a href="mailto:ystreet00@gmail.com" target="_blank">ystreet00@gmail.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>On 16/09/16 20:10, Gottfried Haider wrote:<br>
              > Hello all,<br>
              ><br>
              > I have this pipeline as part of Processing's glvideo
              library, that<br>
              > works great - but doesn't play audio:<br>
              ><br>
              > uridecodebin uri=... ! glupload name=glup !
              glcolorconvert !<br>
              > capsfilter name=filter ! fakesink name=vsink<br>
              ><br>
              > So I tried this instead<br>
              ><br>
              > uridecodebin uri=... name=decoder ! queue !
              audioconvert !<br>
              > audioresample ! autoaudiosink sync=false decoder. !
              queue ! glupload<br>
              > name=glup ! glcolorconvert ! capsfilter name=filter !
              fakesink<br>
              > name=vsink sync=false<br>
              ><br>
              > which just hang. (The particular mp4 file I was
              testing this with had<br>
              > not audio track if that matters.)<br>
              ><br>
              ><br>
              > Should the second pipeline work in theory? Any other
              things I could<br>
              > try to get something like a playbin-like source
              element that would<br>
              > also play audio tracks, if the source has one? I
              uploaded a dot file<br>
              > of the second pipeline on OS X  for you to look
              at[1].<br>
              <br>
            </span>If the file didn't have an audio track that means
            that the audio output<br>
            part of the pipeline would not be linked to uridecodebin and
            thus when<br>
            prerolling would never get a buffer and would never complete
            the state<br>
            change to paused.  A backtrace of all threads would probably
            show that<br>
            the audiosink is stuck on the preroll cond/lock.<br>
            <br>
            Your options are to either use playbin with the video-sink
            property set<br>
            to your custom video branch or if you're set on using
            uridecodebin, you<br>
            will have to selectively add the audio part of the pipeline
            if there is<br>
            an audio pad exposed by uridecodebin.  See the following
            example which<br>
            uses decodebin but the same idea is valid for uridecodebin:<br>
            <a href="https://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-components-decodebin.html" rel="noreferrer" target="_blank">https://gstreamer.freedesktop.<wbr>org/data/doc/gstreamer/head/ma<wbr>nual/html/section-components-<wbr>decodebin.html</a>.<br>
            <br>
            Cheers<br>
            -Matt<br>
            <div>
              <div><br>
                > (If the pipeline looks right it might just be that
                the audio decoding<br>
                > hits this bug [2] on OS X.)<br>
                ><br>
                ><br>
                > Thanks in advance<br>
                > Gottfried<br>
                ><br>
                ><br>
                > [1] <a href="https://bugzilla.gnome.org/show_bug.cgi?id=768630" rel="noreferrer" target="_blank">https://bugzilla.gnome.org/sho<wbr>w_bug.cgi?id=768630</a><br>
                > [2] <a href="https://sukzessiv.net/%7Egohai/gstreamer/uridecode-audio.png" rel="noreferrer" target="_blank">https://sukzessiv.net/~gohai/g<wbr>streamer/uridecode-audio.png</a><br>
                ><br>
              </div>
            </div>
          </blockquote>
        </div>
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    </blockquote>
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</blockquote></div><br></div>