[MEncoder-users] x264 converts to bad aspect ratio

[Etienne Buira]

On Tue, Jan 05, 2010 at 04:56:23PM +0200, Cristian Rusu wrote:
> Hello
> 
> This drives me crazy
> 
> I tried to convert a wmv (the most sucking file format) to mp4(h.264)
> 
> For some reason the aspect ratio is set to 4/3 although I get x264 [info]:
> using SAR=1/1
> 
> Should I mention I can never sync audio and video from that wmv?
> 
> Please help
> 
> 
> Here is what I use:
> 
> mencoder 1057.wmv -o /dev/null -ovc x264 -x264encopts
> pass=1:turbo:bitrate=600:threads=auto:trellis=1:subq=1:frameref=1:bframes=3:b_pyramid=normal:weight_b
> -oac faac -faacopts br=56:mpeg=4:object=2 -srate 44100 -ofps 24000/1001 -vf
> harddup -demuxer lavf -noskip -mc 0
> mencoder 1057.wmv -o temp.raw -ovc x264 -x264encopts
> turbo=1:bitrate=400:threads=auto:trellis=1:subq=6:partitions=all:8x8dct:me=umh:frameref=5:bframes=3:b_pyramid=normal:weight_b
> -oac faac -faacopts br=56:mpeg=4:object=2 -srate 44100 -ofps 24000/1001 -vf
> harddup -demuxer lavf -noskip -mc 0
> 
> 
> mplayer  temp.raw -dumpaudio -dumpfile  temp.aac
> mplayer  temp.raw -dumpvideo -dumpfile  temp.h264
> 
> mp4creator -create=temp.aac  1057.mp4
> mp4creator -create=temp.h264 -rate=23.976  1057.mp4
> 
> mp4creator -hint=1  1057.mp4
> mp4creator -hint=2  1057.mp4
> mp4creator -optimize  1057.mp4

Hi.

Got sometimes the same problem by the past.

Ususally, use of -aspect option, and/or dsize vf fixed it, but I did not
understand the very reason why it happens.

Good luck