[MEncoder-users] Aspect distortion converting dvb-t files

[Nico Sabbi]

José Gabriel Moya Yangüela wrote:
> Hello!
> 
> I've got a problem converting pvr files.
> When I play the original pvr recorded file, they are (gracefully) displayed
> as a 4:3 movie, despite of video size:
> 
> * Windows media player says video size is 480 x 576, aspect ratio is 4:3
> (according to video size, it is 18:15)
> * WinAmp says video size is 480x576, and says nothing about aspect ratio.
> * Mediaplayer classic says it is MPEG2 Video 480x576 (4:3)
> * mplayer says it is MPEG2 480x576  (aspect 2), but it gracefully 
> renders it
> with correct aspect 4:3 (despite of mplayer -identify showing
> ID_VIDEO_ASPECT=0.00)
> 
> But, when I convert it, it has some chances to be rendered as 15:18
> (portrait aspect, about 480x576) instead of 18:15 (576x480).
> 
> If I use -force-avi-aspect, I see the desired 4:3 image in mplayer, but all
> other media players show a 15:18 (portrait) video.
> 
> I've tried aplying the "scale" filter, but it distorts the image.
> 
> Sometimes aspect is corrected using 'mencoder pvr://file...' instead of
> 'mencoder file...', but sometimes it does not work.
> 
> I'm sure this strange 480:576 (15:18) aspect ratio has something to do with
> dvb standards, because of all players showing correct aspect ratio when 
> file
> is of type mpegpes, but failing when it is converted.
> 
> Some hint?
> 

upload a sample, please

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"Without a frontend, mplayer is useless" - someone in mplayer-users