[mythtv-users] Mencoder XviD encoding Sanity Check

Christopher Meredith chmeredith at gmail.com
Sat May 2 18:06:38 UTC 2009

Couple things off the top of my head:
* I would suspect the main problem is your trying to scale the output
to 352x320, which is not a 4:3 aspect ratio. Try 512x384 instead.
* You can used -aspect 16:9 or -aspect 4:3 to avoid those ugly decimals.
* I also normally see the filter chain specified very close to the
beginning (i.e. mencoder infile.mpg -vf ...)
* Why are you using the -idx option while transcoding?

On Sat, May 2, 2009 at 12:09 AM, John Westlund <john.westlund at gmail.com> wrote:
> I posted about a week ago about how I could suddenly no longer play most of
> my XviD encoded shows with the internal player - I think the issue lies with
> how I'm encoding from the mpeg out of my HDHomeRun to XviD - so I was hoping
> some mencoder users/gurus could sanity check my encoding commands:
> This encoding command produces a playable XviD:
> /usr/bin/mencoder -msglevel all=5 -aspect 1.77777777777778 -idx
> /MythTV/infile.mpg -ovc xvid -oac mp3lame -lameopts vbr=3:br=128
> -xvidencopts max_key_interval=59:fixed_quant=6 -o /MythTV/outfile.XviD.avi
> -vf scale=576:320
> This encoding command produces a non-playable XviD:
> /usr/bin/mencoder -msglevel all=5 -aspect 1.33333333333333 -idx
> /MythTV/infile.mpg -ovc xvid -oac mp3lame -lameopts vbr=3:br=128
> -xvidencopts max_key_interval=59:fixed_quant=6 -o /MythTV/outfile.XviD.avi
> -vf scale=352:320
> I haven't tried taking the same input file and switching up the encoding
> commands, but it appears that any XviD I add to Myth that someone else has
> encoded works.  Which makes me think I'm doing something wrong.
> John
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