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<p class="MsoNormal"><span style="color:black">So, I can block pipeline on EOS, finish processing, push frames, unlock EOS event to let it finish pipeline.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">Am I correct? If so, thanks a lot!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b>From:</b> gstreamer-devel <gstreamer-devel-bounces@lists.freedesktop.org>
<b>On Behalf Of </b>Nicolas Dufresne<br>
<b>Sent:</b> Thursday, September 26, 2019 16:48<br>
<b>To:</b> Discussion of the development of and with GStreamer <gstreamer-devel@lists.freedesktop.org><br>
<b>Subject:</b> Re: GstBaseTransform missing frames<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Le jeu. 26 sept. 2019 09 h 10, Abdumuminov, Umedzhon <<a href="mailto:umedzhon.abdumuminov@intel.com">umedzhon.abdumuminov@intel.com</a>> a écrit :<o:p></o:p></p>
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<p class="MsoNormal">Hi guys,<br>
<br>
We have problem with missing some frames due to finishing pipeline before we done with processing.<br>
<br>
We have inherited our elements from GstBaseTransform. Our elements do processing in their own threads in parallel.<br>
According to documentation (<a href="https://gstreamer.freedesktop.org/documentation/base/gstbasetransform.html#GstBaseTransformClass::generate_output" target="_blank">https://gstreamer.freedesktop.org/documentation/base/gstbasetransform.html#GstBaseTransformClass::generate_output</a>)
we can return GST_BASE_TRANSFORM_FLOW_DROPPED and it is fine.<br>
So, when filesrc reach end of file and send EOS we didn't finished processing yet, but due to EOS pipeline finishes and we are losing some frames that are in processing.<br>
<br>
We would like to keep processing in our own threads and do not lose frames when pipeline finishes.<br>
Is there any convenient way to make pipeline wait until we finished? or maybe we can return something different instead of "drop" status?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Just wait and push when you receive the Eos event. This event is on the streaming thread with stream lock held.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Don't forget to report your latency!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><br>
Thank you in advance!<br>
<br>
Umed<br>
<br>
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