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|
#!/bin/bash
#
# $Id$
#
# script for vdr-imageplugin to convert the selected image to pnm-image
# needs : netpbm-progs > anytopnm pnmscalefixed pnmfile pnmcut pnmflip
#
# History:
# 2005-07-26 add commando for rotate 180
# 2005-07-18 wrong lookup for pnmscale and really are pnmscalefixed used
# 2004-08-12 Initalrelease, Andreas Brachold <anbr at users.berlios.de>
# base on prior work for convert.sh
# by Onno Kreuzinger <o.kreuzinger-at-kreuzinger.biz>
# Andreas Holzhammer and <Interpohl-at-vdr-portal.de>
#
################################################################################
# Userconfig:
################################################################################
# if your install external software like netpbm outside /bin:/usr/bin, adjust folder
PATH=/usr/local/bin:$PATH
# Set to "yes" to speedup reviewed image
TMPCACHE=no
# Set to "no" if this script work and your don't need success messages
VERBOSE=yes
# Set to "yes" if this script don't work, only usable if your self execute the script from shell
DEBUG=no
################################################################################
# and now the script
################################################################################
[ "z$DEBUG" = "zyes" ] && set -xv
SCRIPTNAME=$(basename "$0")
{
[ "z$VERBOSE" = "zyes" ] && echo "called '$SCRIPTNAME $*'"
if [ $# -lt 7 ] ; then
echo "Usage: $SCRIPTNAME infile outfile WIDTH HEIGHT ZOOMFACTOR LEFTPOS TOPPOS [FLIPCMD]" 1>&2
echo " e.g.: $SCRIPTNAME in.png out.pnm 720 576 0 0 0" 1>&2
echo " or .: $SCRIPTNAME in.png out.pnm 720 576 3 360 360 left" 1>&2
echo "" 1>&2
echo "WIDTH - Width of TVScreen (720)" 1>&2
echo "HEIGHT - Height of TVScreen (480..576)" 1>&2
echo "ZOOMFACTOR - Zoomfactor (0....10)" 1>&2
echo "LEFTPOS - Offset from left on Zoommode (0......)" 1>&2
echo "TOPPOS - Offset from top on Zoommode (0......)" 1>&2
echo "FLIPCMD - optional should image flip (left,right,rotated,original)" 1>&2
exit 1
fi
# Defaultvalue, overwrite with env from plugin
ASPECT_RATIO="${ASPECT_RATIO:-"4:3"}"
# check requirement external programs
REQUIREMENTS="anytopnm pnmscalefixed pnmfile pnmcut pnmflip"
for i in $REQUIREMENTS
do
type "$i" > /dev/null 2>&1
[ $? -ne 0 ] && echo -e "$SCRIPTNAME: Error ! External required program: \"$i\" not found !\n Please adjust PATH or install it inside follow Folder \"$PATH\" \n" && exit 1
done
INFILE="$1"
OUTFILE="$2"
OUT_DISPLAY_X=$3
OUT_DISPLAY_Y=$4
ZOOMFACTOR=$5
LEFTPOS=$6
TOPPOS=$7
FLIPCMD="$8"
OUTDIR=$(dirname "$OUTFILE")
[ ! -d "$OUTDIR" ] && mkdir -p "$OUTDIR"
TMPFILE="$OUTFILE.tmp"
PARFILE="$OUTFILE.par"
# remove precreated files if called with flip "left","right" or "original"
[ -s "$OUTFILE" -a "$FLIPCMD" != "" ] && rm -f "$OUTFILE"
[ -s "$TMPFILE" -a "$FLIPCMD" != "" ] && rm -f "$TMPFILE"
if [ -s "$OUTFILE" ] ; then
[ "z$VERBOSE" = "zyes" ] && echo "Success! Convert not required, $OUTFILE exists already!"
exit 0
else
# Convert Image to PNM File
[ ! -s "$TMPFILE" ] && anytopnm "$INFILE" > "$TMPFILE"
# if success
if [ -s "$TMPFILE" ] ; then
# Get image resolution
RES=`echo $( pnmfile < "$TMPFILE" -)` # checked with netpbm 10.0,
# Parse pnmfile output "-: PPM raw, 768 by 576 maxval 255" => 768 x 576
X_RES=$(echo -e "$RES"| cut -d " " -f 4)
Y_RES=$(echo -e "$RES"| cut -d " " -f 6)
# set flip command
case "$FLIPCMD" in
right )
FLIP="pnmflip -rotate270"
SWAPRES=$X_RES;X_RES=$Y_RES;Y_RES=$SWAPRES
;;
left )
FLIP="pnmflip -rotate90";
SWAPRES=$X_RES;X_RES=$Y_RES;Y_RES=$SWAPRES
;;
rotated )
FLIP="pnmflip -rotate180";
;;
*)
FLIP="cat";
;;
esac
# Save config for plugin as readable file
echo "$X_RES" "$Y_RES" "$FLIPCMD" > "$PARFILE"
# define aspect ratio depends plugin setup
if [ $ASPECT_RATIO = "16:9" ] ; then
SCALE_MIN_ASP=163
SCALE_MAX_ASP=178
else
SCALE_MIN_ASP=125
SCALE_MAX_ASP=133
fi
# if zoom image, zoom it with factor
if [ "$ZOOMFACTOR" -gt 0 ] ; then
ZOOM_X=$(($X_RES*$ZOOMFACTOR))
ZOOM_Y=$(($Y_RES*$ZOOMFACTOR))
$FLIP < "$TMPFILE" | pnmscalefixed -xysize $ZOOM_X $ZOOM_Y | \
pnmcut -pad -left $LEFTPOS -top $TOPPOS -width $OUT_DISPLAY_X -height $OUT_DISPLAY_Y \
> "$OUTFILE"
# else scale image to TV Screensize
else
if [ "$((${X_RES}00 / ${Y_RES}))" -lt $SCALE_MIN_ASP ] ; then
OUT_DISPLAY_X=$((${OUT_DISPLAY_Y}000 / $Y_RES * $X_RES / 1000))
elif [ "$((${X_RES}00 / ${Y_RES}))" -gt $SCALE_MAX_ASP ] ; then
OUT_DISPLAY_Y=$((${OUT_DISPLAY_X}000 / $X_RES * $Y_RES / 1000))
fi
$FLIP < "$TMPFILE" | \
pnmscalefixed -xysize $OUT_DISPLAY_X $OUT_DISPLAY_Y \
> "$OUTFILE"
fi
# if'nt tmpfile use for next view, remove tmp file
[ "z$TMPCACHE" = "zno" ] && rm -f "$TMPFILE"
fi
fi
if [ -s "$OUTFILE" ] ; then
[ "z$VERBOSE" = "zyes" ] && echo "Success! Stopped with created $OUTFILE"
exit 0 # Creation seem success, tell it with 'exit 0' to plugin
fi
[ "z$VERBOSE" = "zyes" ] && echo "Error! Stopped without found created $OUTFILE, converting should failed !"
exit 1 # Hmm, created is failed tell it with 'exit 1' to plugin
###### >>>>>>> !!! Only one of the follow lines are allowed (begins always with 2>&1 ) !!!
### Dump any message to syslog to see use cat /var/log/messages | grep imageplugin
} 2>&1 | logger -s -t "$SCRIPTNAME"
### If your wish don't any message logging
# 2>&1 > /dev/null
### If your wish old style message logging
# 2>&1 > /tmp/image/convert.log
|
