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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I decided I didn’t understand what stepping is about, and I found the preroll-handoff signal on the fake-sink, which pretty much does what I need. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Using this I will usually get decoded frame data on my sink after I either initially preroll or after the prerolls when I do a seek. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>However, I have an mp4 file on my SSD disk that whenever I do my initial preroll (I set the uri and put the pipeline in PAUSED mode) I will not get the preroll signal. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Is there any reasonable explanation to why I sometimes don’t get the preroll signal? Is this to be expected on some streams for some reason? <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Best Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Henning<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> gstreamer-devel [mailto:gstreamer-devel-bounces@lists.freedesktop.org] <b>On Behalf Of </b>Henning Riis<br><b>Sent:</b> Monday, July 04, 2016 3:06 PM<br><b>To:</b> gstreamer-devel@lists.freedesktop.org<br><b>Subject:</b> Getting frames in PAUSED mode and stepping<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a playbin based player, and I’m trying to implement starting it in PAUSED mode and getting frames. I obtain the frames using a fakesink and the handoff signal.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When loading a resource, I set the URI and then I set the pipeline in PAUSED mode. Once the pipeline goes to PAUSED I send a step event for stepping 10 seconds into the stream. I expect my handoff signal handler to get called so that I may present the frame. <o:p></o:p></p><p class=MsoNormal>It’s pretty much based on the code found in tests/examples/stepping/framestep1.c.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does this sound valid?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The problem I face, is that it seems that when my URI is pointing to a file I have on disk I never get my handoff signal, however for a http URI it seems to work.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Are there any known problem around this? Should it work? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Also, can I use the same technique for “seeking” when paused and still getting the frame data? I’m not sure I understand the difference between seeking and stepping. Any hints?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Best Regards,<o:p></o:p></p><p class=MsoNormal>Henning<o:p></o:p></p></div></body></html>