$./hive2_ffmpegsvn -k kf -o kf/fn.xml ./fn.mpeg

eg: 
./hive2_ffmpegsvn -k /data/video_keyframe -o /data/video_keyframe/test_video.xml /data/test_video.mpeg

Usage: ./hive2_ffmpegsvn options input_file
  -h --help               Display this usage information.
  -o --output-file  file  XML output file.
  -k --keyframe-dir dir   Output directory for keyframes.
  -d --dn-logfile file    Optional file for logging dn values.
  -e --encoder-mode mode  Output format. Mode is
                           1 - XML output
                           2 - ANSES vidseg output
  -m --main-thresh value  Main threshold setting.
  -l --low-thresh value   Gradual threshold setting.
