[mythtv] Question about Target Bitrate

Isaac Richards mythtv-dev@snowman.net
Fri, 20 Dec 2002 22:41:41 -0500

On Friday 20 December 2002 04:21 pm, Jeremy Oddo wrote:
> OK, so I'm a little confused over the whole "target bitrate" thing.  What
> EXACTLY does this mean?  There's the quality of the codec compression (min
> and max quality settings) and the frame size (ie: 320x200, 640x480, etc),
> but what does target bitrate control?  Bumping it up from 3300 to 4400
> added some quality and takes up more drive space but what does the
> variable relate to?

Average bitrate for the encoded video in kilobits/second -- stuff's still VBR, 
but it'll average out close to the specified value.  So, setting things to 
3300kbps will produce a file that's about 1.5GB/hour.