The h.264 codec is not the best one for GEM. Try converting it to Photo or Motion JPEG.<br><br><div class="gmail_quote">On Mon, Jul 2, 2012 at 5:19 PM, Iain Mott <span dir="ltr"><<a href="mailto:mott@reverberant.com" target="_blank">mott@reverberant.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Forgot to mention i'm using Ubuntu 11.10 and the video files are 30 fps<br>
with the codec H.264 / AVC<br>
<br>
Also, while sending an "auto 1" message to pix_film gives smooth<br>
playback, the file plays perhaps 30% slow. This doesn't seem to be a CPU<br>
issue as the cpu is running between 20 and 30% while playing the file.<br>
<span class="HOEnZb"><font color="#888888"><br>
Iain<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
<br>
<br>
<br>
On Mon, 2012-07-02 at 17:14 -0300, Iain Mott wrote:<br>
> Hi list,<br>
><br>
> I have a patch that syncs multi-channel audio with video by passing<br>
> frame numbers to pix_film. These frame numbers are generated by the<br>
> audio playback. With HD video however and scenes including smooth<br>
> movements, the image becomes a little jittery and a bit blurred. I tried<br>
> completely disabling the audio but it made no effect. When audio is<br>
> enabled and I run the pix_film with an "auto 1" message, playback is<br>
> excellent.<br>
><br>
> I'll experiment now to see if lip-sync can be maintained without propper<br>
> frame-sync, since my clips have at maximum 3min duration.<br>
><br>
> I'm wondering though if anyone else had come across this blurring?<br>
><br>
> I'm using by the way, a heavily butchered version of Hans-Christoph's<br>
> framesync (and an old version of it). However, even if don't use the<br>
> framesync patches and pass a frame count generated with metro and a<br>
> counter at the correct rate of 30fps - the blurring still happens.<br>
><br>
> Suggestions most welcome!<br>
><br>
> Cheers,<br>
><br>
> Iain<br>
><br>
><br>
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