Commit Graph

6 Commits

Author SHA1 Message Date
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