[mythtv] [PATCH] Add new MPEG4 encoding options
Edward.Wildgoose at FRMHedge.com
Tue Apr 1 11:12:53 EST 2003
> Here is a patch to include the 'VHQ' and '4MV' encoding options for MPEG4
> encoding. Nothe that these take a LOT of cpu processing, and on my
> 1.6GHz machine, I can only record at 560x416 with these options enabled
> (and that is about 85% usage) as opposed to without them 640x480 uses
> only 60%. The video quality is substatially better though (560x416 with
> these options looks significantly better than 640x480 without them in my
> opinion). You can enable VHQ without 4MV, but it is not recommended to
> enable 4MV without VHQ (see this page for more info on different options
On my machine applying this patch causes some lipsync issues due to slight sound delay. It could just be because the machine is on the limit (dual 1Ghz Pentium 3) and I haven't tried enabling the options in myth to deal with this
Actually at first I thought it could simply have been something to do with the extra processing required, however, thinking about it, I reckon the sound was behind the video, not vice versa as you might expect..
I will assume that it is specific to my machine unless someone else has seen this as well?
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