[MEncoder-users] 1080i TS -> 720p x264

Evgeniy Stepanov eugeni.stepanov at gmail.com
Thu Aug 31 02:47:14 CEST 2006

On Thursday 31 August 2006 04:23, Jon Ferguson wrote:
> I am trying to convert a 1080i ts stream to 720p x264.  What I have done is
> created a fifo to conserve disk space.
> I startup mencoder like so,
> mencoder inputfile.ts -vf filmdinit,softskip,scale=1280:720 -ofps
> 24000/1001 -of rawvideo -ovc raw -vf swapuv -nosound -o /tmp/stream.yuv
> Then I use the x264 binary like so
> x264 -p 1 -b 3 --b-pyramid -r 8 -w -m 6 --b-rdo --mixed-refs -bime -t 2
> --fps 24000/1001 --no-fast-pskip -A all --progress --threads 3 -o
> outputfile.nosound.mkv /tmp/stream.yuv 1280x720
> The output is garbled. Without using scale it works as expected.  According
> to the man page scale also does yuv->bgr conversion.  I think this might be
> the problem.  Is there a way to prevent it from converting to bgr or am I
> way of base?

I'm not sure if it does colorspace conversion in this case. If it does, you 
can try appending "format" filter after "scale".

The real problem must be -vf option being used twice in your command line. The 
first one is ignored.

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