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Author SHA1 Message Date
Michael Giacomelli
1620d1fd03 Correct poor assumption on my part that WMA frames are 2048 samples long. Fixed problems with sample rates < 44.1khz. Fixes FS#9242 and FS#9439. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18805 a1c6a512-1295-4272-9138-f99709370657
 2008-10-14 01:41:26 +00:00
Michael Giacomelli
46f85c4c54 Combine the Vorbis, WMA and AAC IMDCT functions and put them into the codeclib. Combined IMDCT is now based on existing Tremor transform. Reduces CPU for 192k AAC by 21MHz on Coldfire, and 5MHz on PP5024. WMA and Vorbis should have no functional changes since they already used this code. Further optimization is possible and would benefit all 3 codecs. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18412 a1c6a512-1295-4272-9138-f99709370657
 2008-09-04 18:02:10 +00:00
Michael Giacomelli
d016402fec Actually put the output in IRAM this time by combining some buffers that weren't used at the same time. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18231 a1c6a512-1295-4272-9138-f99709370657
 2008-08-10 02:31:01 +00:00
Jens Arnold
ee39863459 Speed up WMA decoding on coldfire (14% speedup with a 128kbps test file). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18228 a1c6a512-1295-4272-9138-f99709370657
 2008-08-09 22:32:34 +00:00
Michael Giacomelli
6da45d4c56 Remove unused variable. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18095 a1c6a512-1295-4272-9138-f99709370657
 2008-07-19 20:52:43 +00:00
Michael Giacomelli
1334738071 Use Tremor IMDCT for WMA. Gives a ~20% speedup on ARM and coldfire. All my test samples gave equivilent or better accuracy (>>16 bit), but there may still be problems. Code becomes somewhat less readable since the IMDCT has bits of Vorbis in it, but this is not a serious issue and the old ffmpeg transform remains in SVN if anyone wants it. Also, WMA now passes Vorbis as the fastest transform codec on ARM, although MPC remains the fastest lossy codec overall. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18084 a1c6a512-1295-4272-9138-f99709370657
 2008-07-17 17:43:49 +00:00
Michael Giacomelli
95fb20b7a8 Fix warning due to typo on my part. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17948 a1c6a512-1295-4272-9138-f99709370657
 2008-07-05 22:55:09 +00:00
Michael Giacomelli
2a75a9045c More WMAv1 fixes by Rafael Carre. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17943 a1c6a512-1295-4272-9138-f99709370657
 2008-07-05 00:44:01 +00:00
Michael Giacomelli
b50b38ae58 Forgot that the X5/M5 use a 64/64KB IRAM split, so they can't use the previous optimization. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17854 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 19:21:38 +00:00
Michael Giacomelli
a06f651c3e Put the WMA windowing and output buffer into IRAM on targets with > 96KB of it. Improves 192k WMA decoding speed by about 2MHz on PP5024, and maybe saves some more when applying DSP. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17853 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 18:56:19 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 18:10:04 +00:00
Michael Giacomelli
ff9f3f8c04 Revert r14786 which resulted in a substantial reduction in accuracy to save a 7.6KB of RAM. Accuracy should be greatly improved now, and if we want to make that trade off again, I think of better ways to do it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17783 a1c6a512-1295-4272-9138-f99709370657
 2008-06-24 15:39:44 +00:00
Michael Giacomelli
dab9fa1ef7 Fix for WMAv1 decoding suggested by Rafael Carre. I don't think anyone out there will ever use V1, but its worth having correct code for its own sake. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17782 a1c6a512-1295-4272-9138-f99709370657
 2008-06-24 15:17:14 +00:00
Michael Giacomelli
e7999873f5 Fix mistake in previous WMA commit. Also update comments to reflect changes. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17202 a1c6a512-1295-4272-9138-f99709370657
 2008-04-21 00:46:55 +00:00
Michael Giacomelli
dac1ed5f41 This table is probably 128 entries long beginning with -60. Greatly improves FS#7488, but does not entirely fix it. Also, while I'm recomputing tables, use proper whitespace formating. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17162 a1c6a512-1295-4272-9138-f99709370657
 2008-04-18 23:05:20 +00:00
Michael Giacomelli
861525852c Increase the size of one of the look up tables. Fixes 'burst of static' in some files. I still have no idea how big it really needs to be... 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17103 a1c6a512-1295-4272-9138-f99709370657
 2008-04-14 01:12:51 +00:00
Michael Giacomelli
82dc8175cf Make the WMA decoder less noisy in the sim. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17014 a1c6a512-1295-4272-9138-f99709370657
 2008-04-07 02:32:48 +00:00
Michael Giacomelli
c6bbb0f690 Fix sim for now. Eventually I should change the decoder to error out if theres a problem allocating huffman tables. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17013 a1c6a512-1295-4272-9138-f99709370657
 2008-04-07 02:25:09 +00:00
Michael Giacomelli
231f0c208d Let the console know when the huffman tables have overflown. This should never happen. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17012 a1c6a512-1295-4272-9138-f99709370657
 2008-04-07 02:11:14 +00:00
Michael Giacomelli
4a808073c7 Amazingly, I've only been initing about 1/2 the huffman table entries needed to actually decode a WMA file for the last 8 months and yet somehow never noticed. Fixes FS#8713, FS#8606 and probably a lot of other files. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17011 a1c6a512-1295-4272-9138-f99709370657
 2008-04-07 02:01:44 +00:00
Michael Giacomelli
03f1b98531 Fix misleading debug statement. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16838 a1c6a512-1295-4272-9138-f99709370657
 2008-03-27 01:40:16 +00:00
Michael Giacomelli
5730da2ba8 Apply last fall's exponent fix to WMA v1 files as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16114 a1c6a512-1295-4272-9138-f99709370657
 2008-01-19 23:00:50 +00:00
Michael Giacomelli
dadd80a8a6 If seek fails, don't insert nonsense for the current position. Also, make one of the error messages a bit more clear. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16002 a1c6a512-1295-4272-9138-f99709370657
 2008-01-06 02:50:01 +00:00
Michael Giacomelli
781c82c0d6 Argh. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15368 a1c6a512-1295-4272-9138-f99709370657
 2007-10-29 23:22:33 +00:00
Michael Giacomelli
31b74ecb21 Copyright. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15367 a1c6a512-1295-4272-9138-f99709370657
 2007-10-29 23:21:42 +00:00
Michael Giacomelli
132bc634ed We removed the old Q15.16 precision trig functions from decoding ages ago, so no need to leave them in. Also, this code needs a GPL header. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15366 a1c6a512-1295-4272-9138-f99709370657
 2007-10-29 23:16:41 +00:00
Thom Johansen
877ea486ba Move multiply routines into the header. Give Coldfire a fixmul32b(). Remove some tabs and empty lines. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15205 a1c6a512-1295-4272-9138-f99709370657
 2007-10-19 12:27:38 +00:00
Thom Johansen
9a1a2fd686 Oversight in syncing on my end, sorry. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15184 a1c6a512-1295-4272-9138-f99709370657
 2007-10-18 10:14:31 +00:00
Thom Johansen
6e4aa260d0 Add Coldfire and ARM assembler for "reverse multiply and copy" function too. Gives big speedup on Coldfire, small on ARM. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15183 a1c6a512-1295-4272-9138-f99709370657
 2007-10-18 10:09:21 +00:00
Thom Johansen
fffc257897 Woops, movem.l needs other order. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15178 a1c6a512-1295-4272-9138-f99709370657
 2007-10-18 00:48:00 +00:00
Thom Johansen
00662a235c Add Coldfire assembler for window and add function, yielding a nice speedup. Tweak ARM assembler version of same routine to act the same as the Coldfire version. Remove an error condition that newer ffmpegs do not bail out on. Files requiring this new behaviour have been observed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15177 a1c6a512-1295-4272-9138-f99709370657
 2007-10-18 00:28:10 +00:00
Marcoen Hirschberg
b8753ffdaa move structures around in the header files 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14941 a1c6a512-1295-4272-9138-f99709370657
 2007-10-01 13:46:07 +00:00
Marcoen Hirschberg
6b559b2188 disable the ARM optimized MDCT for the Gigabeat for now as it creates a data abort 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14940 a1c6a512-1295-4272-9138-f99709370657
 2007-10-01 13:42:03 +00:00
Marcoen Hirschberg
6475ad7821 reuse the largest sin and cos tables for smaller sizes 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14786 a1c6a512-1295-4272-9138-f99709370657
 2007-09-20 17:35:36 +00:00
Marcoen Hirschberg
4d853fff2f fix a warning for coldfire 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14779 a1c6a512-1295-4272-9138-f99709370657
 2007-09-20 13:52:41 +00:00
Marcoen Hirschberg
1be7314b39 get rid of warnings 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14778 a1c6a512-1295-4272-9138-f99709370657
 2007-09-20 13:02:27 +00:00
Marcoen Hirschberg
b2abd67671 remove unused struct member and variable 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14777 a1c6a512-1295-4272-9138-f99709370657
 2007-09-20 12:32:39 +00:00
Marcoen Hirschberg
1ddef375df move (i)MDCT and FFT code to separate files 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14776 a1c6a512-1295-4272-9138-f99709370657
 2007-09-20 12:27:24 +00:00
Marcoen Hirschberg
cd5edbe52c small cleanups 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14772 a1c6a512-1295-4272-9138-f99709370657
 2007-09-20 10:50:59 +00:00
Jens Arnold
20444c47a8 Fix warning. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14577 a1c6a512-1295-4272-9138-f99709370657
 2007-09-02 11:06:29 +00:00
Michael Giacomelli
a514c60fd0 Apparently, negative exponents are possible when decoding exponential VLC. Should fix occasional glitches that happened in files of all bitrates. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14571 a1c6a512-1295-4272-9138-f99709370657
 2007-09-02 03:28:49 +00:00
Michael Giacomelli
153d74443a Clean up iMDCT coefficient calculations. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14451 a1c6a512-1295-4272-9138-f99709370657
 2007-08-24 20:02:50 +00:00
Michael Giacomelli
8159b9ee9a Faster Q1.31 multiply for ARM. Add some ARM asm windowing code. Simply replacing c code with loop unrolled + load/store multiple instructions makes a surprising difference on PP. Also, add comments to the windowing code. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14365 a1c6a512-1295-4272-9138-f99709370657
 2007-08-16 03:33:15 +00:00
Marcoen Hirschberg
c43629f08b use the full resolution we get from the WMA decoder and let the DSP code do the rest 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14224 a1c6a512-1295-4272-9138-f99709370657
 2007-08-06 23:34:28 +00:00
Michael Giacomelli
aa2b7cbe03 Fix warning. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14207 a1c6a512-1295-4272-9138-f99709370657
 2007-08-06 02:10:49 +00:00
Michael Giacomelli
98f0d77879 Clean up VLC functions. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14206 a1c6a512-1295-4272-9138-f99709370657
 2007-08-06 01:43:09 +00:00
Dave Chapman
2ff816fab6 Cosmetic changes - TAB and whitespace policing. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14135 a1c6a512-1295-4272-9138-f99709370657
 2007-08-02 07:41:28 +00:00
Michael Giacomelli
206e883e78 Initial attept at supporting Line Spectral Pairs. Various issues remain, and the ffmpeg decoder itself often fails on certain valid LSP files. Expect some issues. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14134 a1c6a512-1295-4272-9138-f99709370657
 2007-08-02 04:47:33 +00:00
Michael Giacomelli
54b80471a5 Fix overflow in noise coding. Greatly improves sound quality of some low bitrate files 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13975 a1c6a512-1295-4272-9138-f99709370657
 2007-07-25 02:34:21 +00:00
Michael Giacomelli
e9c09d4d0e Fix decoding of misc sample rates that no one ever uses 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13946 a1c6a512-1295-4272-9138-f99709370657
 2007-07-21 01:03:58 +00:00