af_volume: implement replaygain pre-amplification
authorAlessandro Ghedini <alessandro@ghedini.me>
Fri, 4 Apr 2014 16:42:09 +0000 (18:42 +0200)
committerAnton Khirnov <anton@khirnov.net>
Fri, 4 Apr 2014 16:53:05 +0000 (18:53 +0200)
commita49aa440c939e221194f8d95bf98673f8cf38a06
treec643b5b59ea2486d8a01b640ad00227d72bf3c21
parentc74b86699c86bdf62e8570f41d8a38be5710baa3
af_volume: implement replaygain pre-amplification

This adds a new "replaygain_preamp" option to the filter, and simply adds its
value to the replaygain gain value.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
doc/filters.texi
libavfilter/af_volume.c
libavfilter/af_volume.h