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foxbox/apps/codecs
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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
..
demac Make the codecs use more IRAM on S5L870x, as we have plenty of it. 2009-11-09 20:01:07 +00:00
lib Remove some sample functions from codeclib - these were for verifying the generated asm for bs_generic and never intended for use. 2009-12-09 17:13:06 +00:00
liba52 Actually qualify the tables put into .irodata in r22849 as 'const'. Also mark fftorder[] as 'const'. 2009-09-30 19:36:06 +00:00
libalac 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. 2009-12-09 02:24:45 +00:00
libasap Silence warning from 'ar' if the archive had to be created. 2009-03-01 09:04:15 +00:00
libatrac Further performance optimization of the atrac3 decoder. Rework the internal sample representation and usage of dsp routines. For now a quick and dirty solution is used to add a fract part of 2 bits. Through this several buffers and functions as well as copy loops could be removed. Furthermore add some ASM for coldfire and place some additional data in IRAM on PP5022/24 and X5/M5. Speedup on ARM: +3%, speedup on Coldfire: +639%. Both ARM and Coldfire can decode in realtime now. 2009-08-30 14:14:22 +00:00
libcook Fix red: av_log2 undefined for ARM_ARCH <= 4, missing codeclib.h includes. 2009-12-06 04:43:23 +00:00
libfaad Libfaad pow2/log2 improvements: 2009-12-13 03:45:40 +00:00
libffmpegFLAC Fix red: av_log2 undefined for ARM_ARCH <= 4, missing codeclib.h includes. 2009-12-06 04:43:23 +00:00
libm4a Add support for the MP4 file type 'isom'. Based on FS#10790 with an additional fix, making the sample file play. Also updated some debug prints. 2009-11-22 16:37:36 +00:00
libmad Fix another file for r12 being a scratch register. Overlooked earlier because this file used 2009-07-13 13:15:28 +00:00
libmusepack * ARM asm DSP and codec/plugin functions: Use r12 scratch register properly 2009-07-12 13:14:35 +00:00
librm Factor out bytestream reading functions needed in rm parsers/codecs. 2009-08-14 15:13:14 +00:00
libspc Fix yellow by making the ifdef hell slightly worse 2009-11-29 21:22:23 +00:00
libspeex Oops, correct typo that made the previous commit useless 2009-11-29 21:41:58 +00:00
libtremor Comment var only used by already commented out debug code, delete #if 0'ed block move a comment and fix some broken indentation 2009-12-12 16:37:44 +00:00
libwavpack Reenable -O2 for Wavpack, which appears to have been lost during makefile clean up. Improves wavpack decoding performance by several MHz on ARM and Coldfire. 2009-11-08 07:04:14 +00:00
libwma Move av_log2 function and asociated table to the codec lib, remove 3 identical implementations, always have LUT in iram (gives a *tiny* speedup on coldfire), make the clz based function return the same value as the non clz based function for 0 input to be safe (slows down flac ~2% on the gigabeat S) 2009-12-05 16:47:43 +00:00
a52.c Make local functions static in codecs, where possible. 2008-12-29 19:49:48 +00:00
a52_rm.c Set svn:keywords property. 2009-11-18 01:00:43 +00:00
aac.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
adx.c Take 2 at 'Consolidate all fixed point math routines in one library' (FS#10400) by Jeffrey Goode 2009-07-05 18:06:07 +00:00
aiff.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
aiff_enc.c Commit FS#10458 by Christopher Williams - Fix incorrect AIFF and WAV encoding while recording in mono. 2009-07-23 11:27:09 +00:00
alac.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
ape.c FS#10122 - Fix wrong format type of logf functions in speex.c 2009-09-30 12:56:33 +00:00
asap.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
atrac3_rm.c Set svn:keywords property. 2009-11-18 01:00:43 +00:00
codec_crt0.c Mac doesn't handle placing variables in specific sections very well. Building the sim on OS X is now possible once again. 2009-02-27 07:30:41 +00:00
codecs.make Enable strict aliasing optimizations for codecs on gcc versions >= 4.0, fix alising violations that this uncovered, gives small speedups for most codecs, FS#10801 2009-11-29 18:11:49 +00:00
cook.c Set svn:keywords property. 2009-11-18 01:00:43 +00:00
flac.c Fix FS#10476. Prevent FLAC bitrate calculation overflow with large files. The watermark depends on the bitrate, and so this also fixes playback pauses on large FLAC files. 2009-08-08 20:27:03 +00:00
mod.c Enable strict aliasing optimizations for codecs on gcc versions >= 4.0, fix alising violations that this uncovered, gives small speedups for most codecs, FS#10801 2009-11-29 18:11:49 +00:00
mp3_enc.c Enable strict aliasing optimizations for codecs on gcc versions >= 4.0, fix alising violations that this uncovered, gives small speedups for most codecs, FS#10801 2009-11-29 18:11:49 +00:00
mpa.c Fix inaccurate time display for 44.1 (and 22.05) kHz MP3 audio tracks. Time was off by about 0.2%. Doesn't sound much, but after one hour, that's 8 seconds. Also fix a problem when seeking to near the end of a file. 2009-08-03 20:28:16 +00:00
mpc.c Allow higher precision in calculation of seek position and elapsed time for mpc codec. 2009-04-20 19:16:48 +00:00
nsf.c Make local functions static in codecs, where possible. 2008-12-29 19:49:48 +00:00
raac.c Set svn:keywords property. 2009-11-18 01:00:43 +00:00
shorten.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
sid.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
SOURCES Support for playback of atrac3 audio in rm, in sim. 2009-08-14 17:36:57 +00:00
spc.c Take 2 at 'Consolidate all fixed point math routines in one library' (FS#10400) by Jeffrey Goode 2009-07-05 18:06:07 +00:00
speex.c FS#10122 - Fix wrong format type of logf functions in speex.c 2009-09-30 12:56:33 +00:00
vorbis.c FS#10466: Introduce a real malloc for tremor. 2009-08-29 12:23:40 +00:00
wav.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
wav_enc.c Commit FS#10458 by Christopher Williams - Fix incorrect AIFF and WAV encoding while recording in mono. 2009-07-23 11:27:09 +00:00
wavpack.c Calculate watermark from bitrate and harddisk spinup time. 2009-01-10 21:10:56 +00:00
wavpack_enc.c Recording: Change some encoder code the operation of which was apparantly unclear. It seems clearer now anyway. No functional changes. 2008-11-28 07:23:13 +00:00
wma.c Commit fix suggested by Siaoru Lee in FS#9776. Fixes a bug in our ASF parser. 2009-02-08 22:05:15 +00:00