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8 commits

Author SHA1 Message Date
Andrew Mahone
af5bad46d8 Libfaad pow2/log2 improvements: 
Correct pow2_* to calculate correct output for input < 0.0 or between 0.0 and 1.0 instead of returning 0. This will change output, but the float version of this codec uses pow(2.0,x) in place of these functions, so this behavior was probably a bug
Replace 64-bit multiply in pow2_* with left or right shift by whole part of input, rounding if shifting right. An ARM-specific optimized version is provided as a C inline function, other targets use a C macro.
Increase constant size of table for pow2 to improve accuracy, also avoid early truncation in linear interpolation of result.
Move constant tables for pow2 and log2 to iram.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23967 a1c6a512-1295-4272-9138-f99709370657
 2009-12-13 03:45:40 +00:00
Andrew Mahone
85aad9b397 Extend av_log2 in codeclib into a generic for scanning for set bits, which can provide either log2 or leading-zero-count output, and can force mapping 0 input to 0 output if needed (otherwise 0 input produces undefined result). Replace av_log2 in lib/codeclib.h, floor_log2 and wl_min_lzc in libfaad/common.c and common.h, and count_leading_zeros in libalac/alac.c with macros using bs_generic. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23903 a1c6a512-1295-4272-9138-f99709370657
 2009-12-09 02:24:45 +00:00
Michael Giacomelli
f5884fdeb6 Disable AAC-SBR, AAC-SSR, and AAC-PS on Sansa clip. Clean up warnings introduced by this. Enable compiling the AAC codec on the Clip. Due to lack of memory for seek tables, files over 10 minutes long or so will probably fail. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20781 a1c6a512-1295-4272-9138-f99709370657
 2009-04-25 03:51:58 +00:00
Björn Stenberg
c6b3d38a15 New makefile solution: A single invocation of 'make' to build the entire tree. Fully controlled dependencies give faster and more correct recompiles. 
Many #include lines adjusted to conform to the new standards.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19146 a1c6a512-1295-4272-9138-f99709370657
 2008-11-20 11:27:31 +00:00
Daniel Stenberg
20a5926d2e build with -Wundef to make sure we have spelled the defines right in #if lines 
and have the proper includes included etc


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12360 a1c6a512-1295-4272-9138-f99709370657
 2007-02-17 21:54:17 +00:00
Magnus Holmgren
3fa5e5f592 Apply a bunch of simple AAC decoder optimizations. Biggest speedup is on ColdFire targets, but ARM targets benefits too. Allows realtime playback of some AAC files on Iriver targets (H1x0, H3x0). Remove support for some rarely used AAC profiles to reduce code size a bit. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11038 a1c6a512-1295-4272-9138-f99709370657
 2006-09-24 19:00:29 +00:00
Dave Chapman
798a4f3533 Changes to make libfaad compile in Rockbox. Also remove compiler warnings, use some IRAM (IRAM usage needs reviewing) and drastically reduce the stack usage 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7700 a1c6a512-1295-4272-9138-f99709370657
 2005-10-31 20:33:27 +00:00
Dave Chapman
65de1cc6af Initial check-in of unmodified libfaad (part of the FAAD2 project). This is the last version of libfaad available under the GPL - the state of FAAD2 CVS at midnight on 2005-02-01 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7699 a1c6a512-1295-4272-9138-f99709370657
 2005-10-31 18:56:29 +00:00