rockbox/apps/codecs/libwmapro/wmaprodec.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

Use more IRAM on S5L870x to speed up wmapro by ~2%.

2011-05-20T23:28:09+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29906 a1c6a512-1295-4272-9138-f99709370657

Fix nearly all residual 'variable set but not used' warnings reported from GCC 4.6.0.

2011-05-01T14:44:20+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29810 a1c6a512-1295-4272-9138-f99709370657

Increase wmapro decoder output sample depth to 24 bits, makes the mean error between our output and the original floating point decoder ~5e-8. (FS#11498 by Buschel)

2010-08-04T23:21:35+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27703 a1c6a512-1295-4272-9138-f99709370657

Use codeclib's mdct in wmapro. Input coeffs to the transform needed to be scaled down first by (log2(frame_size) - 3). Increases decoding speed by 1.3MHz on PP5022 and saves ~32KB that were previously needed by the mdct tables. (FS#11511 by Buschel and myself)

2010-08-04T22:29:50+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27701 a1c6a512-1295-4272-9138-f99709370657

Fix the sample count in wma pro.

2010-08-03T22:59:03+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27687 a1c6a512-1295-4272-9138-f99709370657

Housekeeping for libwmapro. Define some multiple used constants, use more precise value for cos(pi/4).

2010-07-31T21:07:17+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27644 a1c6a512-1295-4272-9138-f99709370657

Maintenance and minor speedup of libwmapro. Comment unused arrays, fix comment, remove tabs and introduce WMAPRO_FRACT to wma.h to remove magic numbers. Swap operands of fixmul16-call for minor speedup on ARM (+1%).

2010-07-29T22:18:04+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27617 a1c6a512-1295-4272-9138-f99709370657

Refinement of initial lowmem handling for libwmapro (r27593). Set maximum supported channels to 2 instead of 8 for low memory targets. This solution saves more RAM than the former solution and does avoid possible NULLPTR access. As add-on remove tabs.

2010-07-28T19:01:45+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27602 a1c6a512-1295-4272-9138-f99709370657

Correct the scaling of the coeffs to 17bits.

2010-07-28T18:39:10+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27599 a1c6a512-1295-4272-9138-f99709370657