[MEncoder-users] thanks for: cannot encode to mpeg2

[Stefan Frings]

Hello all,

I spent lots of hours to find an instruction how to encode a DVB-T stream (or 
file) to a DVD Video. I did not find much useful.

I like to thank you all for your help. I can now do what I want and I get 
excellent picture quality.

The following script reads an mpg file (stored DVB-T stream) and converts it 
to a DVD movie. There are probabyl better scripts, but this one is right ok 
for me.

Nico: I compared your arguments with the defaults and I really cannot see any 
difference. I see also no visual difference between 1-Pass encoding and 
2-Pass encoding. In addition the bitrate is always around 6000 ignoring the 
vbitrate parameter. Anyway you gave me the hints what parameters are the 
important ones for DVD compatibility.

My script is actually this one:
#!/bin/sh

# This script burns a TV recording (DVB-T) as DVD Video.

writer=/dev/hdc

if [ -z "$1" ]; then
  echo "Missing *.mpg filename"
  exit 1
fi

name=`basename "$1" .mpg`

echo "Enter apect ratio 1.3333 (4:3) or 1.7777 (16:9)"
read -p ">" aspect

lavcopts="-lavcopts 
keyint=15:vcodec=mpeg2video:mbd=2:vbitrate=3500:vmax_b_frames=2:vrc_buf_size=1835:vrc_maxrate=9000:vrc_minrate=600:aspect=$aspect"

mencoder_opts="-vc ffmpeg12,mpeg12 -oac lavc -ovc lavc -of mpeg -mpegopts 
format=dvd -mc 0 -noskip -vf harddup"

# For 2-Pass encoding use these lines
#mencoder $mencoder_opts $lavcopts:vpass=1:turbo "$1" -o "$name.neu.mpg" || 
exit 1
#mencoder $mencoder_opts $lavcopts:vpass=2 "$1" -o "$name.neu.mpg" || exit 1

# For 1-Pass encoding use this line
mencoder $mencoder_opts $lavcopts "$1" -o "$name.neu.mpg" || exit 1

dvdauthor -t -o "$name.dvd" "$name.neu.mpg" || exit 1
dvdauthor -T -o "$name.dvd" || exit 1
read -p "Insert DVD media and press <Enter>" enter
growisofs -Z $writer -dvd-compat -dvd-video -udf -V"$name" "$name.dvd"