#!/bin/bash

# make mplayer dump rawvideo to stdout, so it can be opened using
# open-program in pf

# mplayer/mencoder is obviously not made to do this, since it dumps
# status info both to stdout and stderr, so we work around it.

# note, it is possible to dump out yuv4mpeg, using mplayer -vo
# yuv4mpeg:file=<filename> which can be imported in pf, but this has
# mplayer as the sync master, which is not what i want to do
# here. therefore, mencoder is used instead.


# need at least one arg
[ -z "$1" ] && echo "usage $0 <movie> [ <type> <encoding> <width> <height> ]" >&2 && exit 1

# check if file exists, and is readable
[ ! -f "$1" ] && echo "$0: \"$1\" not found" >&2 && exit 1

FIFO=`tempfile -p pf-`
rm $FIFO
mkfifo $FIFO

# fill defaults
if [ -z "$5" ]; then
    FORMAT=i420
    WIDTH=320
    HEIGHT=240
else
    FORMAT=$3
    WIDTH=$4
    HEIGHT=$5
fi


# spawn 'reader'
# cat $FIFO &
bash -c "cat $FIFO ; rm $FIFO" &

# make mencoder shut up
exec 1>/dev/null
exec 2>/dev/null

# convert
exec mencoder -quiet \
    -ovc raw \
    -of rawvideo \
    -vf format=$FORMAT,crop=$WIDTH:$HEIGHT \
    $1 -o $FIFO