Re: mpeg2enc with MJPEG Tools 1.9.0rc2 buggy !

On Tue, 20 Mar 2007, stefan wrote:

> Steven M. Schultz schrieb:
> > Why?  Your sugessions say the same thing - just using different words ;)
> >   
> Erm, there seems to be some confusion about what I tried to say... :-[
	
	I said that -q should go away and an average bitrate be specified.
	Then you said we need a file-size mode:

> The only thing I wanted to say is, that we do not need a lower(!) 
> boundary and that we need a "file-size-mode", too (which we do not have 

	Now I have news for folks.  Bitrate and file size are related :)

	SIZE = BITRATE * TIME

	So given a bitrate and duration you can calculate the filesize.  Given
	the desired size and the time you can calculate the bitrate.  
	
	QED

> currently and which implies a real two-pass-mode). I did not want to 

	Not really.  Andrew was partially implemented a 'backup and retry'
	capability.  Only those GOPs that exceed the target bitrate would
	be recoded.  Could be quite a bit faster than a full multipass
	encoder - but alas that's also where the current bug lies ;(

	Cheers,
	Steven Schultz


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