#!/bin/sh
#-----------------------------------------------------------------------------
# Usage: flctompeg4 <FLC file>
#-----------------------------------------------------------------------------
# Convert an FLC animation to MPEG-4 using mencoder.
#-----------------------------------------------------------------------------

# Initialize.
  if [ $# -gt 0 ]
  then
    FLC=$1
  else
    echo "Usage: flctompeg4 <FLC file>" 1>&2
    exit 1
  fi

  MOVIE=`basename $FLC | sed -e 's|\.[^.]*$||'`

  COMMON="vbitrate=8388608:mbd=2:keyint=100"

  for CODEC in mpeg4 msmpeg4v2
  do
    if [ "$CODEC" = mpeg4 ]
    then
      opts="${COMMON}:v4mv:vqmin=3:vlelim=-4:vcelim=7:lumi_mask=0.07:dark_mask=0.10:naq:vqcomp=0.7:vqblur=0.2:mpeg_quant"
    else
      opts="${COMMON}:vqblur=1.0:cmp=2:subcmp=2:dia=2:mv0:last_pred=3"
    fi

    printf "\n\nEncoding $CODEC, pass 1...\n"
    mencoder -ovc lavc -lavcopts vcodec=${CODEC}:vpass=1:$opts -nosound \
             -o /dev/null $FLC

    printf "\n\nEncoding $CODEC, pass 2...\n"
    mencoder -ovc lavc -lavcopts vcodec=${CODEC}:vpass=3:$opts -nosound \
             -o /dev/null $FLC

    printf "\n\nEncoding $CODEC, pass 3...\n"
    mencoder -ovc lavc -lavcopts vcodec=${CODEC}:vpass=3:$opts -nosound \
             -o $MOVIE.${CODEC}.avi $FLC
  done

  exit