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10 Commits

Author SHA1 Message Date
Paul B Mahol e334765408 avfilter/af_anequalizer: check return value of ff_insert_outpad() 2018-09-15 21:59:01 +02:00
Ganesh Ajjanagadde db1a642cd2 all: move ff_exp10, ff_exp10f, ff_fast_powf to lavu/ffmath.h 
The idea is to use ffmath.h for internal implementations of math functions.
Currently, it is used for variants of libm functions, but is by no means
limited to such things.

Note that this is not exported; use lavu/mathematics for such purposes.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanag@gmail.com>
 2016-03-22 10:15:31 -07:00
Michael Niedermayer 817bf8483e avfilter/af_anequalizer: Avoid loss of precision when calculating nyquist frequency 
Fixes: CID1351398
Fixes: CID1351400

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-02-12 15:59:35 +01:00
Michael Niedermayer 05924e1440 avfilter/af_anequalizer: Fix memleak of args 
Fixes CID1351355

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-02-08 00:39:15 +01:00
Ganesh Ajjanagadde 9f4c7b4df7 lavfi/af_anequalizer: replace pow(x,-2) by 1/(x*x) 
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-12-28 16:48:41 -08:00
Ganesh Ajjanagadde 59ac7ce4da lavfi/af_anequalizer: replace pow(10,x) by ff_exp10(x) 
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-12-28 16:48:27 -08:00
Ganesh Ajjanagadde 63702014fa lavfi/af_anequalizer: remove cabs, cexp dependencies 
Replaces by real arithmetic. Tested the validity of these transformations separately.
Numerical differences are ~1e-15, and should not matter: it is not even
clear which is more precise mathematically.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-12-28 16:47:23 -08:00
Paul B Mahol c9b99494be avfilter/af_anequalizer: make cliping filter type actually useful 
Previously result was ignored.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2015-12-25 15:03:46 +01:00
Paul B Mahol c6e3b6a819 avfilter/af_anequalizer: use pow instead of exp10 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2015-12-25 15:00:06 +01:00
Paul B Mahol 56c7d2b4da avfilter: add high-order parametric multiband equalizer filter 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2015-12-25 14:22:28 +01:00