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<p class="MsoNormal"><span style="color:#1F497D">Hi,<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">Things more clear. Appsink which used to render subtitle haven’t go pause state and playsink don’t wait appsink’s ASYNC_DONE. So subtitle rush out.<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Song Bing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<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>Bing Song<br>
<b>Sent:</b> Friday, January 30, 2015 10:27 AM<br>
<b>To:</b> Discussion of the development of and with GStreamer<br>
<b>Subject:</b> synchronize after seek<o:p></o:p></span></p>
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<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 met one issue: subtitle will rush out without synchronize after seek. Several sentences will rush out and then can synchronize with clock.<o:p></o:p></p>
<p class="MsoNormal">Our use case is below.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Test with external subtitle.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Render subtitle with appsink, not combine with video.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My suspect is subtitle pipeline run very fast. Several subtitles after seek can’t get valid time from clock, and then rush out.<o:p></o:p></p>
<p class="MsoNormal">Do Gstreamer has method to wait all pipeline (audio,video,subtitle) to finish pro-roll, and then start clock? How to ensure all pipeline synchronized and then start after seek?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Song Bing.<o:p></o:p></p>
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