[MPlayer-dev-eng] [PATCH] liba52 float stuff again

[Alex Beregszaszi]

Hi,

> OK, here is an other cleaner attempt on float output support from
> liba52.  The -a52float mplayer option is gone, float output must be
> requested by -af-adv force=4, and it would work for all ad_ modules
> which implement ADCTRL_QUERY_FORMAT and reports that it supports
> AF_FORMAT_FLOAT_NE.  ADCTRL_QUERY_FORMAT was defined in ad.h but it
> hasn't been used anywhere bofore.  I've modified dec_audio.c, if
> -af-adv force=4 is used, it calls ad->control(... ADCTRL_QUERY_FORMAT
> ...) before ad->preinit and if it reports float support, it sets the
> sample_format and samplesize before calling preinit.
> 
> I've also added ADCTRL_SET_VOLUME support to liba52, which is
> inaccessible now, but perhaps later mixer.c could be changed to use
> it.  And in preparation for that, I've added an ad_driver member into
> sh_audio_t, and I have removed the file-global mpadec variable from
> dec_audio.c in favor of sh_audio->ad_driver.  This at least makes the
> ad driver available outside dec_audio.c, but mixer.c still cannot use
> it because it does not see sh_audio.  A simple solution is to add an
> ad_driver member to mixer_t, and use that.

I would better split it into two patches, one regarding the QUERY_FORMAT
in the framework (commit this first), and the second liba52 part.

-- 
Alex Beregszaszi 			e-mail: alex at fsn.hu
Free Software Network			cell: +36 70 3144424