[MPlayer-dev-eng] [PATCH] remove limits from af_equalizer

Corey Hickey bugfood-ml at fatooh.org
Fri Mar 3 23:46:07 CET 2006


Reynaldo H. Verdejo Pinochet wrote:
>>>>>>Probably a wider range would be fine, but I consider it
>>>>>>unnecessary. Any value chosen would be arbitrary, and any value
>>>>>>high enough to avoid restricting the amplification of a quiet
>>>>>>source would be high enough to be damaging to a loud source.
>>>>>>
>>>>>>The current limits encompass most of the useful values, and I
>>>>>>noted that in my patch to the man page. I've attached a new patch
>>>>>>that describes more accurately what happens with suboption values
>>>>>>that are too high.
>>>>>
>>>>>Ok Corey, if flexibility is the issue I'll back you on this one,
>>>>>still I'll need you to make some measurements to determine a db
>>>>>range that will (~overall) *work* without making a mess of the
>>>>>output, add that range to the man page and Ill commit if no one
>>>>>complains.
>>>>
>>>>Sorry this took me so long -- I got caught up in preparing for the
>>>>Doom9 codec comparison and had to set this aside for a while.
>>>>
>>>>The application of my other patch to af_equalizer (which removed an
>>>>unnecessary divide by 40) makes af_equalizer way more sensitive than
>>>>it used to be. Useful values are only between -2 and 2, whereas they
>>>>should be between -12 and 12. Setting a suboption to 3 shouldn't
>>>>cause out-of-range values. I don't think my other patch was wrong,
>>>>but I think it only fixes half the bug. I spent a while looking at
>>>>af_equalizer.c, but I didn't find a solution. I can understand the
>>>>source ok, but I don't know how it should be.
>>>>
>>>>I wanted to fix it myself before I sent in another patch removing the
>>>>limits, but at this point I have to give up. As it is right now,
>>>>with af_equalizer's sensitivity, the limits are way higher than they
>>>>need to be anyhow. If that bug is fixed, then my previous patch 
>>>>(equalizer-remove-limits2.diff) will probably be relevant. Otherwise,
>>>>you might as well drop it.
>>>
>>>
>>>Do I understand correctly that, the brief ensuing comments
>>>notwithstanding, this means that the patch is withdrawn?
>>
>>Yes, until when (if) somebody fixes af_equalizer so it actually
>>amplifies by the correct amount.
>>
>>-Corey
> 
> 
> Hi, just comed back from vacations, I'll work on this this weekend

Ah, nice! I'm looking forward to seeing what you find out.

-Corey




More information about the MPlayer-dev-eng mailing list