[FFmpeg-devel] GSoC Participation

[Måns Rullgård]

Michael Niedermayer <michaelni at gmx.at> writes:

> On Sat, Mar 27, 2010 at 11:30:45AM -0400, Ronald S. Bultje wrote:
>> Hi,
>> 
>> On Sat, Mar 27, 2010 at 11:20 AM, Ronald S. Bultje <rsbultje at gmail.com> wrote:
>> > Right, so I was wondering about that qualification task already. For
>> > float mp3 decoder, your best bet is to go on to IRC and talk directly
>> > to Alex, who will mentor that task.
>> 
>> Correction, this would be Michael, according to the wiki.
>
> i was already confused when you said alex mentors it, but he can
> surely play the powerless figurehead mentor if he likes, you know
> my dislike for googles "i agree" licences
>
> back to the topic
> a qual task for float support in the mpeg audio decoder would be to
> convert dct32() as it is to float AND also implement dct32() in SSE
> and by using our generic fft/dct code. We dont know which of these 3
> would end up faster and this will be needed for the float mpeg audio
> project anyway so its not really extra work.
> (yes you should know a bit x86 asm for this project otherwise the
> resulting code would not be competetive on modern desktop systems)

If the generic fft/dct code can be used, all manner of asm
optimisations will come for free.

-- 
M?ns Rullg?rd
mans at mansr.com