[mythtv-users] nuvexport created xvid files play fine on PC buthave stutter and audio delay on TV

David Fishburn fishburn at ianywhere.com
Sun Jan 7 02:00:20 UTC 2007


 

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org 
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of devsk
> Sent: Saturday, January 06, 2007 6:57 PM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] nuvexport created xvid files play 
> fine on PC buthave stutter and audio delay on TV
> 
> answering my own question. I found that ffmpeg creates a more 
> compliant avi compared to transcode, and fixed all my 
> problems with sync and fast forward. I recently did a 
> comparison of ffmpeg and transcode from nuvexport with the 
> same settings. I found ffmpeg to be a winner in all aspects: 
> quality, speed, compatibility and size closer to the 
> specified bitrate. I have uploaded two frame grabs for 
> comparison purposes
> 
> http://home.comcast.net/~funtoos/transcode.png 
> <http://home.comcast.net/%7Efuntoos/transcode.png>
> http://home.comcast.net/~funtoos/ffmpeg.png 
> <http://home.comcast.net/%7Efuntoos/ffmpeg.png> 
> 
> transcode is a little more smoothed out: note the sharpness 
> in curtain and sunlight falling on the door thru the curtain 
> in ffmpeg on the left side of the grab, whereas they are so 
> fuzzy in transcode. The avg. rate was 1471 for transcode and 
> 1508 for ffmpeg, for a specified rate of 1500. mencoder went 
> crazy with bitrates (used 2800 for a specified rate or 1500), 
> so was ruled out.


Can you show us the exact command lines you used to run
ffmpeg/nuvexport/mencoder.  I am just now beginnning to explore the various
options for transcoding recording to save space.

Thanks,
Dave



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