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<p class="MsoNormal"><span style="color:#1F497D">Hi Tim,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thank you for your reply.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I did as you suggested and yes it fixed the problem!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Playback is fine now using my play pipeline as well as the windows media player.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Any further insight as to why audio was lagging?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">At first I was using mulawenc but I removed it to further reduce audio leg latency.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If anything, I would have expected video to be lagging due to the greater computational overhead in the video leg.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Perhaps one of the elements I’m using is not reporting latency correctly – I don’t know.<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"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Bill <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>From:</b> gstreamer-devel [mailto:gstreamer-devel-bounces@lists.freedesktop.org]
<b>On Behalf Of </b>Tim Müller<br>
<b>Sent:</b> Thursday, June 09, 2016 6:10 PM<br>
<b>To:</b> Discussion of the development of and with GStreamer <gstreamer-devel@lists.freedesktop.org><br>
<b>Subject:</b> Re: Audio lags video for avi movie<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">On Thu, 2016-06-09 at 21:36 +0000, William Salibrici wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Hi Bill,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"> Here are my two questions for the second record pipeline where audio lags video:<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><o:p> </o:p></p>
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What is causing the audio to lag the video? <o:p></o:p></li><li class="MsoNormalCxSpMiddle" style="margin-bottom:8.0pt;mso-add-space:auto;line-height:105%;mso-list:l0 level1 lfo3">
What would be the best way to add a fixed latency to the video leg in the recording pipeline so that audio and video are in sync for playback? My customer application requires the standard windows media player for playback so I can’t tweak the playback properties.
<o:p></o:p></li></ol>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%">I’m using GStreamer 1.6.4 with your windows pre-built binaries.
<o:p></o:p></p>
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<pre><o:p> </o:p></pre>
<pre>Try adding a videorate element before the video encoder and an audiorate element before the audio encoder or muxer (if you mux raw audio), to see if that makes a difference.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Cheers<o:p></o:p></pre>
<pre> -Tim<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
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<pre>-- <o:p></o:p></pre>
<pre>Tim Müller, Centricular Ltd - <a href="http://www.centricular.com">http://www.centricular.com</a><o:p></o:p></pre>
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