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<body dir="ltr"><div>Hi,</div><div><br></div><div>Le mardi 28 février 2023 à 10:17 +0000, Miguel Leão via gstreamer-devel a écrit :</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">Hey everyone,</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof"><br></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">I am working on a pipeline that reads video from a file, decodes it, and sends it to an appsink, like so: <br>multifilesrc - decodebin - appsink</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof"><br></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">My problem is, this pipeline is processing the video way to fast, and is causing problems in a pipeline that has an appsrc and plays the video. The video is playing way faster and the pipeline keeps discarding buffers (I assume because it can't process them fast enough) and ends up crashing.</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof"><br></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">I tried adding a tee with a fakesink in the end of the pipeline, with the sync property set to true. But it had no effect on the outcome.</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">multifilesrc - decodebin - tee - appsink</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof"> | - fakesink</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof"><br></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">Also added a capsfilter with the correct framerate, but same result.</div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">Any idea how I can play this with a "normal" clock speed?</div></blockquote><div><br></div><div>As you do offline processing, I'd suggest to set appsink max-buffer property to 1 or 2. By default its unlimited (0), and may endup using all your RAM and CPU. From there, the you don't need clock or sync in your pipeline, you can process the appsink data at the speed you want.</div><div><br></div><div>regards,</div><div>Nicolas</div><div><span></span></div></body></html>