This will generate a png with frames from your video. Originally created for blog to book printing for videos in blog.

filmstrip.bash

#!/bin/bash
#
# This will generate a png with frames from your video.  Originally created for blog to book printing for videos in blog.
# Watchout in this current version it requires a large temp space as each frame is output into a separate file first.
#
#
# GPL'd.  If you do not know what that means visit http://www.gnu.org/licenses/gpl.html
# Required programs.  mplayer, ImageMagick, BASH, GNU Core Tools (Like sed, grep, etc...)
#
# Author: Wil Wade
# Contact: wil@WilWade.com

if [ -z $1 ] 
	then
	echo "Create a film strip from a video pulling frames from video at needed increments"
	echo "At least one argument is required.  First is the video file.  Others are optional."
	echo "Usage: framesGenerator.sh videofile columns rows frameWidth frameHeight"
	echo "Will output videofile.png in the same folder as the video"
	exit
fi
	

#Set Defaults
if [ -z $2 ]
	then
	WIDE=5
	else
	WIDE=$2
fi

if [ -z $3 ]
        then
        TALL=5
        else
        TALL=$3
fi

if [ -z $4 ]
        then
        FRAMEW=400
        else
        FRAMEW=$4
fi

if [ -z $5 ]
        then
        FRAMEH=400
        else
        FRAMEH=$5
fi

#How many seconds long to stop mplayer at the end
LENGTH=$(midentify $1  | grep ID_LENGTH | sed 's/ID_LENGTH=//')

echo "Length=$LENGTH"

mplayer -nosound $1 -vo png -endpos $LENGTH

# Here we hope that there are no other files that are pngs which have filenames of just 8 numbers.
# If so they will be deleted at the end of the script.
ls [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].png > framelist.txt

# Here we get the count of the number of frames, by just counting the number of lines in the file
PNGCOUNT=$(wc -l framelist.txt | sed 's/ framelist.txt//')

# How many frames do we need to make sure that each spot on the determined grid is filled?
NEEDEDFRAMES=$(($WIDE*$TALL))

# Note that we get rid of the last 10 frames, 
# because often they are just a fadeout, 
# and if the number of frames is directly divisable 
# by the number of needed frames, then we would pull the very last frame.

FREQ=$(($(($PNGCOUNT-10))/$NEEDEDFRAMES))

echo "Frequency=$FREQ"
echo "Frames for Grid=$NEEDEDFRAMES"
echo "Grid Dimentions="$WIDE"x"$TALL""
# Here in the for loop we use an array to store the file names, 
# if your version of bash does not support arrays (I think it is version 2 and below)
# then sorry.

for ((i=0; i<=$NEEDEDFRAMES; i++))
	do

		LINE=$(($i*$FREQ))

		FILES[$i]=$(head -$LINE framelist.txt | tail -1)

	done
montage ${FILES[*]}  -geometry "$FRAMEW"x"$FRAMEH"+"$WIDE"+"$TALL" $1.png

#Cleanup

rm $(cat framelist.txt) 
rm framelist.txt

echo "done. View file $1.png to see the result!"