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Alexandr
n00b
Joined: 06 Sep 2005
Posts: 11
Location: Ukraine
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 Posted: Wed Feb 28, 2007 8:35 am Post subject: [SCRIPT] video-thumbnailer |
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Script makes one picture with thumbnails from video file on it.
Example:
http://img84.imageshack.us/img84/5684/sincity1280x720xvidac3rrh8.jpg
Requires:
- bash :)
- midentify and mplayer (media-video/mplayer package)
- bc (sys-devel/bc package)
- montage and convert (media-gfx/imagemagick package)
Usage:
- copy and paste next code into new file /usr/local/bin/video-thumbnailer
- make this file executable (chmod a+x video-thumbnailer)
| Code: | #!/bin/bash
# video-thumbnailer
# Author: Alexander Pogrebny
if [ $# -ne 2 ]
then
echo "Usage: `basename $0` <number_of_thumbs> /path/to/file"
exit 1
fi
if [ $1 -gt 0 ] && [ $1 -lt 100 ]
then :
else
echo "Number must be in range: 1-99"
exit 1
fi
if [ ! -e "$2" ]
then
echo "File \"$2\" not found"
exit 1
fi
if ls tmp-*.jpg
then
echo "Please, delete all tmp-*.jpg files in current directory first"
exit 1
fi
LENGTH=`midentify "$2" | grep ID_LENGTH | cut -d = -f 2 | cut -d . -f 1`
FPS=`midentify "$2" | grep ID_VIDEO_FPS | cut -d = -f 2`
FRAMESALL=`echo "$LENGTH * $FPS" | bc | cut -d . -f 1`
FRAMESREQUIRED=`expr $1 + 1`
COUNT=1
OFFSETFRAMES=`expr $FRAMESALL / $FRAMESREQUIRED`
OFFSETSECONDS=`echo "$OFFSETFRAMES / $FPS" | bc`
while [ $COUNT -lt $FRAMESREQUIRED ]
do
OFFSET=`expr $OFFSETSECONDS \* $COUNT`
echo "$COUNT - $OFFSET second"
mplayer -nosound -ss $OFFSET -vo jpeg -frames 2 "$2" > /dev/null
if [ ${#COUNT} -eq 1 ]
then
mv 00000002.jpg tmp-0$COUNT.jpg
else
mv 00000002.jpg tmp-$COUNT.jpg
fi
COUNT=`expr $COUNT + 1`
done
rm 00000001.jpg
MM=`expr $LENGTH / 60`
HH=0
while [ $MM -ge 60 ]
do
MM=`expr $MM - 60`
HH=`expr $HH + 1`
done
SS=`echo "$LENGTH - (($HH * 60 + $MM) * 60)" | bc`
if [ ${#SS} -eq 1 ]
then
SS="0$SS"
fi
if [ ${#MM} -eq 1 ]
then
MM="0$MM"
fi
TIME=`echo "$HH:$MM:$SS"`
WIDTH=`midentify "$2" | grep ID_VIDEO_WIDTH | cut -d = -f 2`
HEIGHT=`midentify "$2" | grep ID_VIDEO_HEIGHT | cut -d = -f 2`
if [ $WIDTH -gt 600 ]
then
W=`expr $WIDTH / 6`
else
W=`expr $WIDTH / 2`
fi
if [ $HEIGHT -gt 600 ]
then
H=`expr $HEIGHT / 6`
else
H=`expr $HEIGHT / 2`
fi
montage -geometry $W\x$H+10+10 -background black tmp-*.jpg tmp-thumb.jpg
convert tmp-thumb.jpg -bordercolor black -border 0x50 -font Comic-Sans-MS -fill white -pointsize 28 -gravity NorthWest -annotate +10+10 "$2" tmp-thumb2.jpg
convert tmp-thumb2.jpg -font Comic-Sans-MS -fill white -pointsize 28 -gravity NorthEast -annotate +10+10 "$TIME" tmp-thumb3.jpg
VIDEOCODEC=`midentify "$2" | grep ID_VIDEO_CODEC | cut -d = -f 2`
AUDIOCODEC=`midentify "$2" | grep ID_AUDIO_CODEC | cut -d = -f 2`
AUDIOBITRATE=`midentify "$2" | grep ID_AUDIO_BITRATE | tail -n 1 | cut -d = -f 2 | cut -d 0 -f 1`
AUDIORATE=`midentify "$2" | grep ID_AUDIO_RATE | tail -n 1 | cut -d = -f 2`
AUDIONCH=`midentify "$2" | grep ID_AUDIO_NCH | tail -n 1 | cut -d = -f 2`
convert tmp-thumb3.jpg -font Comic-Sans-MS -fill white -pointsize 28 -gravity SouthWest -annotate +10+10 "[$VIDEOCODEC] $WIDTH x $HEIGHT, $FPS fps" tmp-thumb4.jpg
convert tmp-thumb4.jpg -font Comic-Sans-MS -fill white -pointsize 28 -gravity SouthEast -annotate +10+10 "[$AUDIOCODEC] $AUDIOBITRATE kbps, $AUDIORATE Hz, $AUDIONCH ch" "$2".jpg
rm tmp-*.jpg
echo "[$VIDEOCODEC] $WIDTH x $HEIGHT, $FPS fps"
echo "[$AUDIOCODEC] $AUDIOBITRATE kbps, $AUDIORATE Hz, $AUDIONCH ch"
exit 0 |
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