rockbox

History

Cástor Muñoz 7442742208 iPod Classic: disable IRAM1 On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is slower than DRAM. Codecs that actually are using regions of IRAM1 runs faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains enabled: 48KB for core and 80KB for codecs/plugins. The next test_codec results shows how decode time is decreased: file boosted unboosted .ra ~1.5% ~0.5% .mpc ~21% ~4.5% .ogg ~0.5% ~0% nero_he.m4a ~8% ~1% nero.m4a ~25% ~7% wmapro.wma ~4.5% ~0% wma*.wma ~25% ~7% In addition there is a small power save when IRAM1 HW is disabled. Change-Id: I102adee11458e82037f23076d5d5956e23235de8		2018-07-30 18:50:27 -04:00
..
libwmapro.make
mdct_tables.c	Limit more variables to file scope	2015-01-11 21:40:51 +01:00
mdct_tables.h
quant.h	Expand the range of the WPA Pro quant table. Fixes FS#12704.	2012-07-03 18:43:44 -04:00
README.rockbox
SOURCES	Fix race conditions in parallel build.	2016-05-28 17:41:32 +02:00
wma.c
wma.h
wmapro_math.h
wmaprodata.h
wmaprodec.c
wmaprodec.h	iPod Classic: disable IRAM1	2018-07-30 18:50:27 -04:00

README.rockbox

Library: libwmapro
Imported: 2010-04-30 by Mohamed Tarek

This set of files form the files needed from ffmpeg's libavcodec and libavutil
to build a standalone wma professional decoder.

LICENSING INFORMATION

ffmpeg is licensed under the Lesser GNU General Public License and the file
wmaprodec.c is copyright (c) 2007 Baptiste Coudurier, Benjamin Larsson, Ulion
and copyright (c) 2008 - 2009 Sascha Sommer, Benjamin Larsson.

IMPORT DETAILS

Based on ffmpeg svn r22886 dated 15 April 2010.

The decoder is a heavily modified version of the original ffmpeg floating point
implementation. It's been modified to use fixed point arithmetic and now plays
and seeks on all the targets that Rockbox supports. Currently only supports mono
and stereo streams, streams with more than 2 channels are not yet supported.