make-xvid - converts any video into XviD

#!/bin/sh

# Simply converts anything to XviD

ERROR(){
    printf "\033[0;31mError - $1\033[0m\n"
    exit 1
}

[ -z "$1" -o ! -e "$1" ] && ERROR "Wrong input path or file name or none at all."
IPATH="/home/pintcat/skripte/"
[ -x "$IPATH"progress.sh ] || ERROR_MSG="progress.sh is"
if [ ! -x "$IPATH"ffprogress.sh ]; then
    if [ -n "$ERROR_MSG" ]; then
        ERROR_MSG=$ERROR_MSG"\b\band ffprogress.sh are"
    else
        ERROR_MSG="ffprogress.sh is"
    fi
fi
[ -n "$ERROR_MSG" ] && ERROR "$ERROR_MSG either missing or not executable."
. "$IPATH"ffprogress.sh

#RESX=720    # default
#RESY=406    # default
RESX=720
RESY=406
#FRAMEX=720    # default
#FRAMEY=540    # default
FRAMEX=640
FRAMEY=480
POSX=$((($FRAMEX-$RESX)/2))
POSY=$((($FRAMEY-$RESY)/2))

# Video filter:

#VIDEO_CROP="crop=320:180:0:30,"
VIDEO_SCALE="scale=$RESX:$RESY:sws_flags=bicubic+accurate_rnd,setsar=1:1,"
#VIDEO_PAD="pad=$FRAMEX:$FRAMEY:$POSX:$POSY,"

# These filter options convert HDR10 color space to the more commmon SDR8 (yuv420)

#VIDEO_COLCONV="zscale=tin=smpte2084:min=bt2020nc:pin=bt2020:rin=tv:t=smpte2084:m=bt2020nc:p=bt2020:r=tv,"
#VIDEO_COLCONV=$VIDEO_COLCONV"zscale=t=linear:npl=100,"
#VIDEO_COLCONV=$VIDEO_COLCONV"format=gbrpf32le,"
#VIDEO_COLCONV=$VIDEO_COLCONV"zscale=p=bt709,"
#VIDEO_COLCONV=$VIDEO_COLCONV"tonemap=tonemap=mobius:param=0.1:desat=0,"
#VIDEO_COLCONV=$VIDEO_COLCONV"zscale=t=bt709:m=bt709:r=tv:dither=none,"
#VIDEO_COLCONV=$VIDEO_COLCONV"format=yuv420p,"

# This filter scales the framerate down to 25fps (PAL standard)

VIDEO_FPSCONV="fps=25,zscale=rangein=tv:range=tv -pix_fmt yuv420p -r 25/1"

VIDEO_FILTER="$VIDEO_CROP$VIDEO_SCALE$VIDEO_PAD$VIDEO_COLCONV$VIDEO_FPSCONV"

# Encoder:

XVID="libxvid -ssim_acc 0 -me_quality 6 -trellis 1 -g 250 -bf 1 -qmin 1 -q:v 4"
#XVID="libxvid -variance_aq 1 -ssim_acc 0 -me_quality 6 -trellis 1 -g 250 -bf 1 -qmin 1 -q:v 4"
AC3="ac3 -b:a 128k -ar 48000 -ac 2 -channel_coupling 1 -dmix_mode 3"

# Use this to limit the output to a certain number of frames

#VIDEO_LIMIT="-vframes 25"

FF_ARGS="-vf $VIDEO_FILTER -acodec $AC3 -vcodec $XVID $VIDEO_LIMIT -f avi"
FF_INPUT=$1
FF_OUTPUT=$2
echo
if ! FF_PROGRESS; then
    printf "\n\033[0;31mError - $FF_ERROR\033[0;32m\n\n"
    exit 1
fi
printf "\n\n\n\n"
rm -f $FF_LOG $FF_CMD