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Hi,</div>
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I believe I have solved this problem. It is most likely due to the wrong parser type is being used.</div>
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So can I say that the return type "No common format" is caused by the wrong caps type between the two pad ?</div>
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Also I seem to have drop frames problem in the filesink. I have not really research much into dropped frames problem. What are the common things one looked into for dropped frames?</div>
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Thanks</div>
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Regards</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Howling wong<br>
<b>Sent:</b> Sunday, December 26, 2021 5:30 PM<br>
<b>To:</b> gstreamer-devel@lists.freedesktop.org <gstreamer-devel@lists.freedesktop.org><br>
<b>Subject:</b> Linking Ghost Pad to Tee Pad</font>
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Hi</div>
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I am trying to link a Tee (object tee, in main pipeline) to a Queue (object queue, which is inside a bin, found inside the main pipeline)</div>
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I did this by creating a ghost pad for the queue inside the bin</div>
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/// for queue within bin</div>
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/// get the queue sink pad</div>
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queue_pad = gst_element_get_static_pad (queue, "sink");<br>
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/// create the ghost proxy pad</div>
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ghost_pad = gst_ghost_pad_new ("sink_proxy", queue_pad);<br>
gst_pad_set_active(ghost_pad, TRUE);<br>
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/// for tee</div>
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tee_src_pad_template = gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (tee),<br>
"src_%u");</div>
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tee_pad = gst_element_request_pad (tee,
<div> tee_src_pad_template,</div>
<div> NULL,</div>
NULL);<br>
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/// link the pad together</div>
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GstPadLinkReturn value = gst_pad_link (tee_pad, ghost_pad);<br>
g_print ("thread Live: Pad return is %d .\n", value);</div>
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The <span style="background-color:rgb(255,255,255); display:inline!important">GstPadLinkReturn value </span>return -4 , suggesting no common format. What does this mean? both the caps type is not same?</div>
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I am trying to connect video/mpegts(from tee) to the queue (in the bin of mainline pipe) to be saved as ts file storage , something like below</div>
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<------------------------- bin -------------------------------------------></div>
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tee -----------> queue ---------------> parser --------------> filesink</div>
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tee_pad -----> ghost_pad</div>
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|</div>
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queue_pad </div>
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Regards</div>
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