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Old 21 December 2007, 11:16   #17
meynaf
son of 68k
 
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Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,350
Quote:
Originally Posted by Thorham View Post
I found a book about mp3 on the net. Of course you have to pay to see all of it It's not as easy as I thought to find understandable and yet complete documentation about mp3. For, say, 680x0 coding this is much easier as you're just going to find the original Motorola docs! You sure picked one
I don't remember how many docs I picked, but it sure was more than one

Quote:
Originally Posted by Thorham View Post
That depends. Your ham rendering engine was pretty easy to get the grips with, but then again it was also well documented. It's that mpega re-source that is really hard to understand: no remarks except the ones you write yourself, and not a clue about the workings of the code at all.
Not a clue, yes. The only thing I could find was how much cpu a routine used, by setting up color #0 (dff180) to something upon entry, then resetting it to black at the end. The more of the color you see, the more cpu the code takes.

If you can't find something in here, then I have something else that could be useful to accelerate : my 44.1 khz 14-bit rendering code.
Here :

Last edited by meynaf; 12 May 2011 at 08:32.
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