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Subject: Re: how to merge fixed point wma decoder to libav 0.7.6

Re: how to merge fixed point wma decoder to libav 0.7.6

From: Diaz Soho <soho123.2012_at_gmail.com>
Date: Wed, 3 Sep 2014 00:30:43 +0800

but the usage of library seems different with original ffmpeg libav,
for example:
in rockbox, there is wma_decode_superframe_init,
but
in general ffmpeg libav does not include wma_decode_superframe_init,

so,

I do not got the point how to remove the wrapper that you add for rockbox
could you give some guide?

2014-09-03 0:26 GMT+08:00 Mike <giac2000_at_hotmail.com>:

> The other option of course is to use our codecs directly. You can compile
> the codeclib separately from Rockbox and call it directly from another
> program or using the command line. We provide most of the same formats as
> ffmpeg but all integer.
>
> ------------------------------
> From: giac2000_at_hotmail.com
> To: rockbox-dev_at_cool.haxx.se
> Subject: RE: how to merge fixed point wma decoder to libav 0.7.6
> Date: Tue, 2 Sep 2014 09:17:13 -0700
>
> I talked to the ffmpeg people about it almost a decade ago. Since then
> floating point hardware has become very common and the need for fixed point
> diminished. The closest thing I can think of would be vlc for android
> which uses an early version of our fixed point decoder that is still closer
> to ffmpeg.
>
> Mike
>
> ------------------------------
> Date: Tue, 2 Sep 2014 17:32:00 +0800
> Subject: how to merge fixed point wma decoder to libav 0.7.6
> From: soho123.2012_at_gmail.com
> To: rockbox-dev_at_cool.haxx.se
>
> Hi All,
>
> Is there anyone have idea about how to merge fixed point wma decoder to
> libav 0.7.6?
> because my cpu does not include fpu, when use the wma decoder in libav ,
> it take a lot of cpu time.
>
> Or is anyone have merge fixed point wma decoder to libav?
>
>
> Thanks for any input!!
>
Received on 2014-09-02


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