rockbox/apps/codecs/libfaad/fixed.h, branch master

Add codecs to librbcodec.

2012-04-25T20:13:20+00:00

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius 
Tested-by: Nils Wallménius

Clean up libfaad's fixed point implementation.

2010-09-13T20:57:22+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28069 a1c6a512-1295-4272-9138-f99709370657

Fix FS#11539. Undo r23967 and use another way to achieve results for negative exponents for pow(2,x). This solves heavy distortions on some aac encoded files and clicks/noise on track change.

2010-08-29T19:03:05+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27941 a1c6a512-1295-4272-9138-f99709370657

Fix red, DESCALE_SHIFT macro was missing a right-parenthesis.

2009-12-13T04:06:45+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23968 a1c6a512-1295-4272-9138-f99709370657

Libfaad pow2/log2 improvements:

2009-12-13T03:45:40+00:00

Correct pow2_* to calculate correct output for input < 0.0 or between 0.0 and 1.0 instead of returning 0. This will change output, but the float version of this codec uses pow(2.0,x) in place of these functions, so this behavior was probably a bug
Replace 64-bit multiply in pow2_* with left or right shift by whole part of input, rounding if shifting right. An ARM-specific optimized version is provided as a C inline function, other targets use a C macro.
Increase constant size of table for pow2 to improve accuracy, also avoid early truncation in linear interpolation of result.
Move constant tables for pow2 and log2 to iram.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23967 a1c6a512-1295-4272-9138-f99709370657

Code cleaning - remove some unnecessary defined(SIMULATOR) checks

2007-05-10T13:16:08+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13369 a1c6a512-1295-4272-9138-f99709370657

Add profiling support for libfaad, and enable a small optimization.

2006-09-24T13:15:24+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11037 a1c6a512-1295-4272-9138-f99709370657

Added some EMAC optimised fixed point routines.

2005-11-01T22:21:27+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7714 a1c6a512-1295-4272-9138-f99709370657

Removed msvc-style x86 inline asm. Now the iriver win32 sim builds again.

2005-11-01T21:17:41+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7713 a1c6a512-1295-4272-9138-f99709370657

Initial check-in of unmodified libfaad (part of the FAAD2 project). This is the last version of libfaad available under the GPL - the state of FAAD2 CVS at midnight on 2005-02-01

2005-10-31T18:56:29+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7699 a1c6a512-1295-4272-9138-f99709370657