[MEncoder-users] Generating Divx/MPEG4 files from ATSC .ts files

[Philip Prindeville]

Forgot to mention that the streams are not 1920x1080 (i), but rather
1920x1088 (i).

I wish mencoder had a mode whereby it could parse a file and give
general information about the content...

-Philip


Philip Prindeville wrote:

> I have some HD (1080i) streams that I captured using pchdtvr... And
> I'm wondering how I can (a) crop the non-display 8 lines (not sure what
> these are for... possibly closed captions), and (b) deinterlace the 
> content.
>
> Oh, and if there is line-21 old-fashioned NTSC style captions, I'd like
> to strip them, convert them to DTV-style captions, and re-insert them
> into the stream.
>
> Any idea how to do all of this as a 2- or 3-pass script?  I've tried the
> following,
> but it doesn't seem to work.  No idea why.  It still is de-interlaced,
> for instance.
>
> Thanks,
>
> -Philip
>
>
> #!/bin/sh
>
> x() {
>  echo "$@"
>  $@
> }
>
> bitrate=20000000
>
> for file in "$@"; do
>  dir=`dirname $file`
>  base=`basename $file .ts`
>
>  prog=`echo $base | sed 's/.*\.\([0-9]\)$/\1/'`
>  base=`echo $base | sed "s/\.$prog$//"`
>
>  base="$dir/$base"
>
>  for pass in 1 2; do
>    echo ""
>    echo "pass $pass..."
>    echo ""
>    x mencoder -quiet -sws 2 -oac copy -ovc lavc \
>        -lavcopts vcodec=mpeg4:vbitrate=$bitrate:vpass=$pass:autoaspect \
>        -vf crop=1920:1080,scale=1920:1080,pp=hb/vb/dr/al/lb \
>        -tsprog $prog \
>        -o "$base.avi" "$file"
>
>  done
>
> done
>
>
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