convert_video.sh

   1 #!/bin/bash
   2
   3 GST_LAUNCH='gst-launch-0.10 -e'
   4
   5 #FILE1=/home/douglas/sparrow/content/dv/sparrow-1-3-4-12-14208.dv
   6 #FILE2=/home/douglas/sparrow/content/dv/sparrow-1-3-4-12-14206.dv
   7 #FILE3=/home/douglas/sparrow/content/dv/sparrow-1-3-4-12-14201.dv
   8 #FILE4=/home/douglas/sparrow/content/dv/sparrow-1-3-4-12-14202.dv
   9
  10 FILE1=/home/douglas/sparrow/content/dv-big/capture1098064.dv
  11 FILE2=/home/douglas/sparrow/content/dv-big/capture1098061.dv
  12 FILE3=/home/douglas/sparrow/content/dv-big/capture-xx068.dv
  13 FILE4=/home/douglas/sparrow/content/dv-big/capture1098066.dv
  14
  15 WIDTH=1024
  16 HEIGHT=768
  17
  18 TMP_FILE=/tmp/fresh.avi
  19
  20 if (( $1 )); then
  21     WIDTH="$1"
  22     if (( "$2" )); then
  23         HEIGHT="$2"
  24     else
  25         HEIGHT=$(( $WIDTH * 3 / 4 ))
  26     fi
  27 fi
  28 echo "converting to mjpeg at 4 x ($WIDTH, $HEIGHT), 25 fps"
  29
  30
  31 $GST_LAUNCH videomixer name=mix background=1 \
  32     ! ffmpegcolorspace ! jpegenc idct-method=2 ! avimux \
  33     ! filesink location=$TMP_FILE \
  34     \
  35     uridecodebin uri=file://$FILE1 ! deinterlace  ! videoscale \
  36     ! video/x-raw-yuv, width=$WIDTH, height=$HEIGHT \
  37     ! videobox border-alpha=0  alpha=1  left=0 right=$((-3 * $WIDTH))  ! mix. \
  38     \
  39     uridecodebin uri=file://$FILE2 ! deinterlace  ! videoscale \
  40     ! video/x-raw-yuv, width=$WIDTH, height=$HEIGHT \
  41     ! videobox border-alpha=0 alpha=1 left=$((-1 * $WIDTH)) right=$((-2 * $WIDTH)) ! mix. \
  42     \
  43     uridecodebin uri=file://$FILE3 ! deinterlace  ! videoscale \
  44     ! video/x-raw-yuv, width=$WIDTH, height=$HEIGHT \
  45     ! videobox border-alpha=0  alpha=1  left=$((-2 * $WIDTH)) right=$((-1 * $WIDTH)) ! mix. \
  46     \
  47     uridecodebin uri=file://$FILE4 ! deinterlace  ! videoscale \
  48     ! video/x-raw-yuv, width=$WIDTH, height=$HEIGHT \
  49     ! videobox border-alpha=0  alpha=1  left=$((-3 * $WIDTH)) right=0 ! mix. \
  50
  51 mencoder $TMP_FILE -o mjpeg-4x${WIDTH}x${HEIGHT}.avi -ovc copy -fps 25 -ofps 25