#!/bin/sh
# encode-ng.sh - version 0.0.1 26/08/2008
# based on encode.sh - version 0.0.5
# nice modification by smg/gentoo.de/freenode
#
#       Converts all avis in directory to DVD or 
#	SVCD BIN file with cuesheet.
#	VCD and burning will be implemented soon.
# 	Just loosy script optimized for private use
#	nice modification by smg
#
#       Needed packages (gentoo style)
#       media-video/transcode
#       media-video/mjpegtools
#       media-video/vcdimager
#	app-cdr/cdrdao
#	media-video/mplayer
#
#       feel free to distribute or change code
#       mail: t4c[at]ghcif[dot]de
 
 
# ERROR Constants
 
E_EXIT_SUCCESS=0
E_MISSING_TOOLS=23
E_UNEXPECTED_ERROR=42
 
# Cleans up build environment
 
cleanup() {
 
    echo -n "Cleanup ${1}? (y/n): "
    read answer
 
    case $answer in
        y*|Y*)
            rm -iv "${1}"
            rm -iv "${1%.*}.bin"
            exit $E_EXIT_SUCCESS
            ;;
        *)
            exit $E_EXIT_SUCCESS
            ;;
    esac
 
}
 
# Burn the images
 
burn() {
 
    echo -n "Ready to burn ${1}? (y/n): "
    read answer
 
    case $answer in
        y*|Y*)
            $CDRDAO write --device 0,1,0 --driver generic-mmc-raw --speed 8 "${1}" # to be set up
            ;;
        *)
            cleanup "${1}"
            ;;
    esac
 
}
 
# Check clean build environment
 
check_environment() {
 
    echo "(!!!) Warning: If you've not set your burning device now, hit CTRL-C to abort and set appropriate device + speed (!!!)"
    for count in {5..1}; do echo -n "${count}.. "; sleep 1; done
 
    TRANSCODE=$(whereis transcode | awk -F: '{print $2}' | cut -d ' ' -f 2)
    MPLAYER=$(whereis mplayer | awk -F: '{print $2}' | cut -d ' ' -f 2)
    MP2ENC=$(whereis mp2enc | awk -F: '{print $2}' | cut -d ' '  -f 2)
    MPLEX=$(whereis mplex | awk -F: '{print $2}' | cut -d ' ' -f 2)
    VCDIMAGER=$(whereis vcdimager | awk -F: '{print $2}' | cut -d ' ' -f 2)
    CDRDAO=$(whereis cdrdao | awk -F: '{print $2}' | cut -d ' ' -f 2)
    tools=(transcode, mplayer, mp2enc, mplex, vcdimager, cdrdao)
 
    if [ -z "${TRANSCODE}" -o -z "${MPLAYER}" -o -z "${MP2ENC}" -o -z "${MPLEX}" -o -z "${VCDIMAGER}" -o -z "${cdrdao}" ]; then
        echo - "Your are missing one of the follow tools: ${tools}. Please verify you have installed all!"
        exit $E_MISSING_TOOLS
    fi
 
    encode
 
}
 
 
# Encode to fit VCD standard
 
encode vcd() {
 
# to be implemented
 
}
 
# Encode to fit SVCD standard
 
encode_svcd() {
 
for i in *\.avi; do
 
        ORIGINAL=$(sed "s/.avi//" <<< "${i}")
        nice -20 $TRANSCODE -i "${ORIGINAL}.avi" -x auto,auto -y ffmpeg,mp2 -F svcd -E 44100,16,2 -o "${ORIGINAL}"
        nice -20 $MPLAYER -vo null -ao pcm "${ORIGINAL}.avi"
    nice -20 mv audiodump.wav "${ORIGINAL}.wav"
    nice -20 $MP2ENC -r 44100 -b 192 -o "${ORIGINAL}.mpa" < "${ORIGINAL}.wav" 
    nice -20 $MPLEX -f 4 -o "${ORIGINAL}.mpg" "${ORIGINAL}.m2v" "${ORIGINAL}.mpa"
        nice -20 $VCDIMAGER -t svcd -v "${ORIGINAL}.mpg" -c "${ORIGINAL}.cue" -b "${ORIGINAL}.bin"
    rm -iv ${ORIGINAL}|>.wav
    rm -iv ${ORIGINAL}|>.mp2
    rm -iv ${ORIGINAL}|>.mpa
    rm -iv ${ORIGINAL}|>.mpg
 
    burn "${ORIGINAL}.bin"
 
done
 
}
 
# Encode to fit DVD standard
 
encode_dvd() {
 
for i in *\.avi; do
 
    ORIGINAL=$(sed "s/.avi//" <<< "${i}")
    nice -20 $TRANSCODE -i $ORIGINAL.avi -y mpeg -F d -x auto,auto -E 44100 -b 128 -o $ORIGINAL
    nice -20 $MPLEX -f 9 -o $ORIGINAL.mpg $ORIGINAL.m2v $ORIGINAL.mpa
 
    # burn to be implemented
 
done
 
}
 
# vcd/svcd/dvd - make a choise
 
choise() {
 
    echo -n "You want to create VCD/SVCD or DVD? Choise: "
    read answer
    case $answer in
        vcd|VCD)
            encode_vcd
            ;;
        svcd|SVCD)
            encode_svcd
            ;;
        dvd|DVD)
            encode_dvd
            ;;
        *)
            exit $E_UNEXPECTED_ERROR
            ;;
    esac
 
}
 
# main method
 
perform() {
 
    if [ "${1}" -e "--force"]; then
        choise
    else
        check_environment && choise
    fi
 
}
 
perform
 
# E-O-F