Digital Video

From Eugene Eric Kim
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I'm starting to deal with Digital Video much more, what with video from my camera, Myth T V, my DVD collection, and my Cowon D2. Here are my notes on codecs, conversions, and the like.

Cowon D2

The D2 plays the following video format:

  AVI
  - [[Xvi D]]
  - 320x240
  - 30 fps
  - VBR 50

  MP3
  - 128 kbps


Windows Media Player does not have the XviD codec by default, so you need to install it separately.

ffmpeg settings:

Example 1:

ffmpeg -i INPUT -s 320x240 -vcodec mpeg4 -vtag XVID -b 500kb -mbd rd
       -flags +4mv+trell+aic -cmp 2 -subcmp 2 -g 300 -r 29.97 -acodec mp3
       -ab 128 -ac 2 -async 1 OUTPUT.avi


Example 2:

ffmpeg -i INPUT -pass 1 -s 320x240 -vcodec mpeg4 -vtag XVID -b 500kb -mbd rd
       -flags +4mv+trell+aic -cmp 2 -subcmp 2 -g 300 -acodec copy null.avi
       -threads 2

ffmpeg -i INPUT -pass 2 -s 320x240 -vcodec mpeg4 -vtag XVID -b 500kb -mbd rd
       -flags +4mv+trell+aic -cmp 2 -subcmp 2 -g 300 -acodec mp3 -ab 128
       -ac 2 -async 1 OUTPUT.avi -threads 2


(You can use 320x180 plus -padtop 30 and -padbottom 30 for 16:9 aspect ratio content. For mid-quality bitrates, use 350; for low-quality, use 250.)

Handbrake

I use a Handbrake script to rip movies directly to Cowon format. I'm considering playing with other parameters.

VLC

You can use VLC to rip video.