misc/dv_to_4x1.sh

   1 #!/bin/bash
   2
   3 GST_LAUNCH='gst-launch-0.10 -e'
   4
   5 FILE=/home/douglas/sparrow/content/dv/shrunken009.dv
   6
   7 WIDTH=1024
   8 HEIGHT=768
   9
  10 TMP_FILE=/tmp/fresh.avi
  11
  12 if (( $1 )); then
  13     WIDTH="$1"
  14     if (( "$2" )); then
  15         HEIGHT="$2"
  16     else
  17         HEIGHT=$(( $WIDTH * 3 / 4 ))
  18     fi
  19 fi
  20 echo "converting to mjpeg at 4 x ($WIDTH, $HEIGHT), 25 fps"
  21
  22 if false; then
  23 $GST_LAUNCH  uridecodebin uri=file://$FILE ! deinterlace  ! videoscale \
  24     ! video/x-raw-yuv, width=$(($WIDTH * 4)), height=$(($HEIGHT * 4)) \
  25     ! videocrop top=$(($HEIGHT * 4 / 3)) bottom=$(($HEIGHT * 4 / 3))  \
  26     ! ffmpegcolorspace ! jpegenc idct-method=2 ! avimux \
  27     ! filesink location=$TMP_FILE
  28
  29 mencoder $TMP_FILE -o single-4x${WIDTH}x${HEIGHT}.avi -ovc copy -fps 25 -ofps 25
  30 else
  31 $GST_LAUNCH  uridecodebin uri=file://$FILE ! deinterlace  ! videoscale \
  32     ! video/x-raw-yuv, width=$(($WIDTH * 4)), height=$(($HEIGHT * 4)) \
  33     ! videocrop top=$(($HEIGHT * 4 / 3)) bottom=$(($HEIGHT * 4 / 3))  \
  34     ! ffmpegcolorspace ! vp8enc  ! avimux \
  35     ! filesink location=$TMP_FILE
  36
  37 mencoder $TMP_FILE -o single-4x${WIDTH}x${HEIGHT}-vp8.avi -ovc copy -fps 25 -ofps 25
  38 fi