[tremor] [PATCH] another additional 15% performance gain

[Nicolas Pitre]

On Wed, 9 Oct 2002, marc dukette wrote:

> I will check it out with PocketDivx as soon as the code is in CVS.  Sorry, I
> don't have my box set up for handling .diff patches.
> 
> Sound like a great set of additions especially for use within video.  I will
> look at the code, but how difficult would it be to have this as a parameter
> of the library rather than a seperate recompile?  

That's not possible.

> What I mean is is the code
> spread out such that you would end up with nearly a complete dupicate of the
> codebase.
>  it would be cool if we could turn this on or off based on appication, so
> when playing video with low bitrate audio we could opt for performance,
> while keeping highest quality for just audio playback. 

The selection is done at compile time since the tables are preprocessed and 
the performance intensive parts of the code must be inlined.  Better use two 
separate instances of the library.

> I will look at
> this when I get the code, but I wanted your initial take.

I put my current source tree as tremor-lowaccuracy.zip at the same 
location as the patch for your convenience.

<p>Nicolas

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