[MPlayer-users] Encoding to SVCD

[Rich Felker]

On Fri, Nov 18, 2005 at 12:50:52AM +0000, Tony Houghton wrote:
> In <20051117152159.GB247 at brightrain.aerifal.cx>, Rich Felker wrote:
> 
> > -ovc frameno is deprecated and should NEVER NEVER NEVER be used!
> > Calculating bitrate is elementary school math.....
> 
> I guess so. At first I thought you need to know the size of the audio,
> but of course you can calculate that easily too, knowing the bitrate and
> length.

Yes, even with VBR it's easy to guess the final bitrate within a tiny
margin of error.

> Do you need to reduce the result of the elementary calculations to take
> things like packet and file headers into account? If so, by how much?

File headers are tiny and irrelevant, but overhead is not. For AVI,
allow 24 bytes per frame. This includes audio frames, of which there
are about 38 frames per second at 44100 hz.

Rich