Rockbox.org home
release
dev builds
extras
themes manual
wiki
device status forums
mailing lists
IRC bugs
patches
dev guide



Rockbox mail archive

Subject: Re: [New WMA Codecs] Progress Report #6

Re: [New WMA Codecs] Progress Report #6

From: Mohamed Tarek <mtarek16_at_gmail.com>
Date: Mon, 12 Jul 2010 13:07:15 +0300

On Mon, Jul 12, 2010 at 12:41 PM, Dave Hooper <dave_at_beermex.com> wrote:

> I'd be surprised if codeclib imdct has a bug, as such, that only affects
> decoding wmapro frames.
>
There's no problem with the codeclib's imdct itself. wmapro's mdct is almost
just like codeclib's, but uses a different trig table and currently scales
the input and trig tables with different factors to produce a correct output
and avoid overflows. I'll just use that mdct for now and see if I can use
codeclib's. For now, I tried scaling the input coefficients before sending
them to codeclib's imdct_half, instead of after that, but it still didn't
work properly.

-- 
MT
Received on 2010-07-12

Page was last modified "Jan 10 2012" The Rockbox Crew
aaa