v2v presets:
  preview        Video: 320x240 if fps ~ 30, 384x288 otherwise
                        Quality 5
                 Audio: Max 2 channels - Quality 1

  pro            Video: 720x480 if fps ~ 30, 720x576 otherwise
                        Quality 7
                 Audio: Max 2 channels - Quality 3

  videobin       Video: 512x288 for 16:9 material, 448x336 for 4:3 material
                        Bitrate 600kbs
                 Audio: Max 2 channels - Quality 3

  padma          Video: 640x360 for 16:9 material, 640x480 for 4:3 material
                        Quality 5
                 Audio: Max 2 channels - Quality 3

  padma-stream   Video: 128x72 for 16:9 material, 128x96 for 4:3 material
                 Audio: mono quality -1

