Посоветуйте прогу для создание Скрееншотов к видео (Thumb Превю к фильму)

#!/bin/bash
# This is the "quickthumb.sh" script to implement a quick and dirty 
# video thumbnails generation using mplayer and imagemagick.
# 
# Feel free to use, share and modify this script whichever way you like.
#--- lucif0rm 
ARGS=2
E_WRONGARGS=65
TEMPDIR=$TMP$(echo "quickthumb")

# As usual, check for arguments and print usage
#-------------------------------------------------------------------
if [ $# -lt "$ARGS" ]
  then
    echo
    echo "Usage: quickthumb <path to the video file> <number of frames> "
    echo
    echo "makethumb will capture given number of frames from"
    echo "the video file and make a gallery-like preview with"
    echo "caption."
    echo "For a better result please use even numbers"
    exit $E_WRONGARGS 
fi  

if [ ! -e "$1" ]
  then
    echo 
    echo "File" $1 "not found, exiting" 
    exit $E_WRONGARGS
fi

if [ ! -r "$1" ]
  then
    echo 
    echo "Could not read file" $1 ", exiting" 
    exit $E_WRONGARGS
fi
# This is a parsetime() function which accept number 
# of seconds as an argument and return time in format hh:mm:ss

parsetime () {
	VAL=`echo "tmp=$1; tmp /= 1; tmp" | bc`; # round seconds
	H=$( echo $VAL/3600 | bc ) #get hours
	if [ $H -lt 10 ] 
	  then H=$( echo "0" )$H #if less then 10, add one more zero to construct a classic time representation
	fi
	M=$( echo $VAL/60 | bc ) #get minutes
	
	if [ $M -lt 10 ] 
	  then M=$( echo "0" )$M 
	fi
	S=$(echo "scale=0 ; "$VAL-\($H*3600\)-\($M*60\) | bc)
	
	if [ $S -lt 10 ] 
	  then S=$( echo "0" )$S
	fi
	PARSED_TIME=$( echo "$H:$M:$S" )

}



# Let's gather info about our file
#-------------------------------------------------------------------
# Make a temp dir (erased BEFORE each run)
# test if temp dir exists

if [ -e $TEMPDIR ]
  then
    rm -Rf $TEMPDIR
fi
mkdir $TEMPDIR
# Extract full path from ANY given filename, 
# thus allowing user to specify filename in any format 
# (relative or absolute path).
OLDPATH=$(pwd)
FULLPATH=$(readlink -f "$1")
cd $TEMPDIR
INFO=$TEMPDIR/info

# Pass a video file to the mplayer 
#-------------------------------------------------------------------
# Read some parameters, used later 
mplayer -identify -frames 0  "$FULLPATH" > $INFO 2>&1
# Calculate interval for taking screenshots,
# (splitting the source file equally)
# e.g if input file's duration is 20 seconds
# and user specified 4 screenshots,
# then screenshots would be taken 
# at 2.5, 7.5, 12.5 and 17.5 seconds.
TIME=`cat $INFO | grep ID_LENGTH | sed -e 's/^.*=//g'`
SEEK=`echo \($TIME-1\)/\(2*$2\) | bc`
DELTA=`echo $SEEK*2 | bc`
# Now we will take screenshots

COUNT=1
until [ $COUNT -gt $2 ]; do
        mplayer -vo png:z=9 -frames 1 -ss $SEEK -nosound "$FULLPATH" > /dev/null 2>&1   
	# Here we will annotate each frame with the playback time
	parsetime "$SEEK"
	mogrify -strokewidth 1  -stroke black -pointsize 48 -fill white  -annotate +5+48 "$PARSED_TIME" 00000001.png
	# And move screenshot file to avoid it being 
	# overwritten in the next cycle 
	PRE=$( echo "-" ) #Here we add a prefix to enshure proper sorting
	if [ $COUNT -lt 10 ] 
	  then PRE=$( echo "-0") 
	fi
	mv 00000001.png t$PRE$COUNT.png
	let COUNT=COUNT+1
	let SEEK=$SEEK+$DELTA
done 

# Let's gather some more info like file name and stuff.
# -------------------------------------------------------------------
# Parse filename from the path. If you wish to keep
# the extension, remove second sed expression___________________V_this_one__V
FILENAME=$(echo "File: ")$( echo $FULLPATH | sed -e 's/^.*\///g' -e 's/\..*$//g' )
# Compute file size in bytes and megabytes 
FILESIZE=$(echo "Size: ")$(stat -c%s "$FULLPATH")$(echo " bytes (")$(echo `stat -c%s "$FULLPATH"`/\(1024*1024\) | bc )$(echo "MiB)") 
# Read info about video, provided by mplayer
# TODO audio and/or video bitrate could be 0 with some video files
# TODO is there a way to make a workaround?
VIDEO=`cat $INFO | grep VIDEO:`
VCODEC=`cat $INFO | grep "Selected video codec:" | sed -e 's/Selected//g'`
# Same for audio
AUDIO=`cat $INFO | grep AUDIO:`
ACODEC=`cat $INFO | grep "Selected audio codec:" | sed -e 's/Selected//g'`

# Calculate total time
parsetime "$TIME"
# We'll reserve one line of text for user
# Put whatever you want here
USER="«created with quickthumb bash script»"

# Now let's make a preview using imagemagick.
# -------------------------------------------------------------------
# First of all we will combine all images together
montage *.png -tile 2x -geometry 400x\>+0+0 -background black montaged.png
# Make a black header for the combined image
convert -size 800x160 xc:black header.png
convert -append header.png  montaged.png -background black converted.png

# Put on the video information data
mogrify -pointsize 24 	            -fill white -annotate +5+24 "$FILENAME" -pointsize 18 -annotate +5+52 "$FILESIZE $PARSED_TIME" \
					            -annotate +5+72 "$VIDEO" -fill gray -annotate +5+92 "$VCODEC" \
						    -fill white -annotate +5+112 "$AUDIO" -fill gray -annotate +5+132 "$ACODEC" \
						    -fill "#333" -annotate +5+152 "$USER" converted.png 
# And return completed preview to the initial directory
mv converted.png $OLDPATH/$(date +"%T" | sed -e 's/\:/_/g')$(echo "-thumbnail.png")
 #That's all!
exit 0