rockbox/apps/codecs/libwmapro/mdct_tables.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

oops ! shouldn't have removed mdct_tables.

2010-08-05T06:10:14+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27706 a1c6a512-1295-4272-9138-f99709370657

Drop the the mdct files from libwmapro since they are no longer needed.

2010-08-05T06:02:26+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27705 a1c6a512-1295-4272-9138-f99709370657

Fix red by removing sine_512 from iram (2KB). minor slowdown for PP5024 (~0.05MHz) on a 320kbps sample, and ~0.03MHz slowdown for Coldfire on a 55kbps sample.

2010-08-04T23:14:31+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27702 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

Submit part of FS#11498. Major speedup for WMA Professional on ARM and Coldfire CPUs. Introduce asm routines for multiplications, move arrays with major impact on decoding speed to IRAM. Speeds up decoding by 25% on PP5022 and 34% on mcf5249.

2010-07-26T21:43:07+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27582 a1c6a512-1295-4272-9138-f99709370657

Partial conversion of the wmapro decoder to fixed point arithmetic. Currently inverse quantization & rescaling,

2010-07-05T22:33:37+00:00

imdct and windowing are all in fixed point.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27302 a1c6a512-1295-4272-9138-f99709370657