rockbox/apps/codecs/libtremor/mapping0.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

libtremor: port over ffmpeg's windowing code

2011-09-22T11:47:51+00:00

Use the windowing approach from ffmpeg in tremor, does the mdct doubling, windowing and overlap add in one go.
Also uses less memory so all the processing buffers fit in iram on targets with small iram for the common blocksizes (256/2048) now.

Speeds up decoding of vorbis files by 3MHz for 256/2048 and 20MHz for 512/4096 files on h300.
Speeds up decoding of vorbis files by 3MHz for 256/2048 and 4.5MHz for 512/4096 on the beast.
Speeds up decoding of vorbis files by 0.3MHz for 256/2048 and 1MHz for 512/4096 on c200v1.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30580 a1c6a512-1295-4272-9138-f99709370657

libtremor: save a kB or two limiting an array size to the maximum number of channels we support and using a shorter type for another. No speed diff.

2011-09-16T14:00:06+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30559 a1c6a512-1295-4272-9138-f99709370657

libtremor: small tweak to cf channel coupling asm, speeding up vorbis decoding by ~0.1MHz. Drop unused macro params and add some comments.

2011-09-16T12:51:22+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30558 a1c6a512-1295-4272-9138-f99709370657

libtremor: merge upstream revision 17525 'Commit additional hardening to setup packet decode.'

2010-12-07T16:55:36+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28762 a1c6a512-1295-4272-9138-f99709370657

libtremor: introduce asm optimized version of the channel_couple function for Coldfire and optimize the arm as version, speedup ~1% on Coldfire and PortalPlayer.

2010-10-31T08:19:19+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28405 a1c6a512-1295-4272-9138-f99709370657

Correction to clobber lists of several codec's inline assembly.

2010-05-29T15:00:10+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26376 a1c6a512-1295-4272-9138-f99709370657

Two tiny tweaks to some arm asm

2010-05-13T09:44:05+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25993 a1c6a512-1295-4272-9138-f99709370657

Change various CPU_ARM defines to _ARM_ASSEM_ to be more consistent with the rest of Tremor.

2010-03-16T04:47:24+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25214 a1c6a512-1295-4272-9138-f99709370657

Unroll and optimise channel coupling for arm gives 0.6Mhz speed for vorbis on pp(ipod video)

2010-02-21T15:36:35+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24808 a1c6a512-1295-4272-9138-f99709370657