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* libaf: change filter input/output ratio calculationsGravatar uau2007-11-01
| | | | | | | | | | Change the audio filters to use a double instead of rationals for the ratio of output to input size. The rationals could overflow when calculating the overall ratio of a filter chain and gave no real advantage compared to doubles. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24916 b3059339-0415-0410-9bf9-f77b7e298cf2
* Remove unnecessary unistd.h include.Gravatar diego2007-03-20
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22766 b3059339-0415-0410-9bf9-f77b7e298cf2
* Rename open to af_open so as not to conflict with a previous header definition.Gravatar diego2007-03-20
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22764 b3059339-0415-0410-9bf9-f77b7e298cf2
* Fix memory leaks.Gravatar uau2007-02-10
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22197 b3059339-0415-0410-9bf9-f77b7e298cf2
* makes several libaf functions static coz they are not used outside their ↵Gravatar reynaldo2006-07-09
| | | | | | source files. Patch by Stefan Huehner, stefan AT huehner-org git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18972 b3059339-0415-0410-9bf9-f77b7e298cf2
* actually output 2 channel audio (instead of 6 channel with 4 empty channels)Gravatar reimar2005-05-09
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15385 b3059339-0415-0410-9bf9-f77b7e298cf2
* More HRTF enhancementsGravatar henry2005-04-11
| | | | | | | | | | | | | | | | | | | | | - a passive locking mechanism to enable the matrix to switch between active and passive mode, which enhances the stereo image. - a center front cancellation algorithm that damps the cross-talk if the sound is coming predominantly from center (e.g. if there is dialogue). These two new features should enhance the quality of surround downmix noticeably. Also a correction to the active gain control is included. The previous implementation of Lt + Rt/Lt - Rt AGC should be fine in most cases, but the calculation was inconsistent (gain unitarity is not guaranteed to be preserved). Signed off by Yue Shi Lai <ylai@users.sourceforge.net> git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15125 b3059339-0415-0410-9bf9-f77b7e298cf2
* HRTF filter updates:Gravatar henry2005-04-10
| | | | | | | | | | | | | | | | - Bass compensation gain corrected (which was set too low), now the sound should be even more transparent - A (unified) dual axes active matrix decoder with adaptive steering - capable of decoding matrix surround encoded inputs, with stereo rear - capable of decoding matrix encoded rear center - Purely stereo mixing without unneccessary rear filter calculations - The decoding structure message is moved, because at the old place it gave incorrect messages. Patch by Yue Shi Lai <ylai@users.sourceforge.net> git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15083 b3059339-0415-0410-9bf9-f77b7e298cf2
* license issues clarifiedGravatar henry2005-01-06
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14397 b3059339-0415-0410-9bf9-f77b7e298cf2
* less namespace pollution #2 (prefixed globals in filter.c with af_filter_)Gravatar alex2004-12-29
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14276 b3059339-0415-0410-9bf9-f77b7e298cf2
* removing AFMT_ dependancyGravatar alex2004-12-27
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14246 b3059339-0415-0410-9bf9-f77b7e298cf2
* Make filters request a supported input format instead of failing.Gravatar reimar2004-12-22
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14214 b3059339-0415-0410-9bf9-f77b7e298cf2
* head related transfer functionGravatar henry2004-11-20
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13997 b3059339-0415-0410-9bf9-f77b7e298cf2