rockbox/apps/codecs/libfaad/common.c, 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

Rework of libfaad in several areas. Allow removal of malloc with a new define FAAD_STATIC_ALLOC (in common.h). For now malloc is not fully removed but used by a few arrays needed for AAC-HE SBR+PS only. Reason to keep malloc is to have this amount of memory available for AAC-LC files which might require large m4a tables. The changes make the allocation routines much smaller, better centralized and allow to move duplicated code from aac.c/raa.c to libfaad. The rework includes removal of (now and former) unused code as well.

2011-04-24T20:19:05+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29778 a1c6a512-1295-4272-9138-f99709370657

Restore libfaad's IRAM configuration.

2010-08-29T19:27:11+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27942 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

Revert r27359

2010-07-09T19:58:55+00:00

The ipod4g has enough free IRAM when built with gcc 4.4 eabi

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27362 a1c6a512-1295-4272-9138-f99709370657

Fix red. Remove a small array from IRAM that is not critical to performance.

2010-07-09T18:49:33+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27359 a1c6a512-1295-4272-9138-f99709370657

Submit FS#11461. Major speedup for aac he profile (PP5002 +20%, PP5020 +15%, PP5022 +19%, MCF5249 +35%, MCF5250 +80%), still not realtime on most targets though. This change does a lot of refactoring in the sbr filters and the dct, switching to our optimized codeclib fft and tweaking IRAM usage.

2010-07-09T18:32:37+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27358 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

Extend av_log2 in codeclib into a generic for scanning for set bits, which can provide either log2 or leading-zero-count output, and can force mapping 0 input to 0 output if needed (otherwise 0 input produces undefined result). Replace av_log2 in lib/codeclib.h, floor_log2 and wl_min_lzc in libfaad/common.c and common.h, and count_leading_zeros in libalac/alac.c with macros using bs_generic.

2009-12-09T02:24:45+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23903 a1c6a512-1295-4272-9138-f99709370657

Changes to make libfaad compile in Rockbox. Also remove compiler warnings, use some IRAM (IRAM usage needs reviewing) and drastically reduce the stack usage

2005-10-31T20:33:27+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7700 a1c6a512-1295-4272-9138-f99709370657