rockbox/apps/codecs/libwmapro
Mohamed Tarek 56161967c6 Increase the size of quant table in libwmapro to accomodate more values for exp. Fixes wma pro failure on test files in download.rockbox.org/test_files.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27460 a1c6a512-1295-4272-9138-f99709370657
2010-07-17 09:13:55 +00:00
..
libwmapro.make libwmapro no longer needs libm in the sim; update the makefile and README.rockbox. 2010-07-17 08:19:05 +00:00
mdct_tables.c Partial conversion of the wmapro decoder to fixed point arithmetic. Currently inverse quantization & rescaling, 2010-07-05 22:33:37 +00:00
mdct_tables.h Partial conversion of the wmapro decoder to fixed point arithmetic. Currently inverse quantization & rescaling, 2010-07-05 22:33:37 +00:00
quant.h Increase the size of quant table in libwmapro to accomodate more values for exp. Fixes wma pro failure on test files in download.rockbox.org/test_files. 2010-07-17 09:13:55 +00:00
README.rockbox libwmapro no longer needs libm in the sim; update the makefile and README.rockbox. 2010-07-17 08:19:05 +00:00
SOURCES More cleaning for libwmapro; use codeclib's bitstream functions and drop those from the libwmapro. 2010-07-17 07:53:14 +00:00
wma.c libwmapro : remove dead/unneeded code from wma.[ch] 2010-07-17 08:09:17 +00:00
wma.h libwmapro : remove dead/unneeded code from wma.[ch] 2010-07-17 08:09:17 +00:00
wmapro_math.h libwmapro : Rename all FIXED occurrances to int32_t and remove types.h 2010-07-17 08:00:13 +00:00
wmapro_mdct.c wmapro: don't force little endianness 2010-07-14 20:19:50 +00:00
wmapro_mdct.h Partial conversion of the wmapro decoder to fixed point arithmetic. Currently inverse quantization & rescaling, 2010-07-05 22:33:37 +00:00
wmaprodata.h Remove the floating point code from wmaprodec.c and change variable names accordingly. 2010-07-14 17:55:17 +00:00
wmaprodec.c Increase the size of quant table in libwmapro to accomodate more values for exp. Fixes wma pro failure on test files in download.rockbox.org/test_files. 2010-07-17 09:13:55 +00:00
wmaprodec.h Initial cleanup for libwmapro. 2010-07-15 05:38:09 +00:00

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 now (17 July 2010) uses fixed point arithmetic everywhere. It still
doesn't work on 3 targets, namely clip, c200v2 and m200v4 due to their small 
codec buffer compared to wma pro's needs. 

A comparison against ffmpeg floating point decoder gives :
0.2~0.3%  max relative error
0.005~0.01% average relative error