Convert the faulty avi files that the X4 quadrocopter saves on the remote

x4convert.sh

#!/bin/bash
#
# Convert the (broken) avi files saved by the hubsan x4 H107D remote.
#
# This gstreamer pipeline reindexes the avi file, crops the broken parts of the
# image to the right and left and fixes the aspect ratio. The new files are
# saved into the 'fixed' folder.
#
# <chris@1337.af>

DIR=`pwd`
FILES=`pwd`/*.AVI
mkdir -p fixed

for avi in $FILES; do
  fixed=$DIR"/fixed/"`echo $avi | rev | cut -c 5- | cut -d "/" -f1 | rev`".avi"

  echo -e "\nProcessing" $avi
  gst-launch-1.0 filesrc location=$avi ! avidemux ! jpegdec ! \
  videoscale add-borders=false sharpen=1 ! \
  "video/x-raw,width=320,height=240,pixel-aspect-ratio=4/3" ! \
  videocrop right=15 left=5 ! \
  jpegenc ! avimux ! filesink location=$fixed | grep "Execution ended after"
done