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* Correct poor assumption on my part that WMA frames are 2048 samples long. ↵Michael Giacomelli2008-10-14
| | | | | | 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
* Combine the Vorbis, WMA and AAC IMDCT functions and put them into the ↵Michael Giacomelli2008-09-04
| | | | | | 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
* Actually put the output in IRAM this time by combining some buffers that ↵Michael Giacomelli2008-08-10
| | | | | | weren't used at the same time. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18231 a1c6a512-1295-4272-9138-f99709370657
* Speed up WMA decoding on coldfire (14% speedup with a 128kbps test file).Jens Arnold2008-08-09
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18228 a1c6a512-1295-4272-9138-f99709370657
* Remove unused variable.Michael Giacomelli2008-07-19
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18095 a1c6a512-1295-4272-9138-f99709370657
* Use Tremor IMDCT for WMA. Gives a ~20% speedup on ARM and coldfire. All my ↵Michael Giacomelli2008-07-17
| | | | | | 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
* Fix warning due to typo on my part.Michael Giacomelli2008-07-05
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17948 a1c6a512-1295-4272-9138-f99709370657
* More WMAv1 fixes by Rafael Carre.Michael Giacomelli2008-07-05
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17943 a1c6a512-1295-4272-9138-f99709370657
* Forgot that the X5/M5 use a 64/64KB IRAM split, so they can't use the ↵Michael Giacomelli2008-06-28
| | | | | | previous optimization. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17854 a1c6a512-1295-4272-9138-f99709370657
* Put the WMA windowing and output buffer into IRAM on targets with > 96KB of ↵Michael Giacomelli2008-06-28
| | | | | | 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
* Updated our source code header to explicitly mention that we are GPL v2 orDaniel Stenberg2008-06-28
| | | | | | | | | 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
* Revert r14786 which resulted in a substantial reduction in accuracy to save ↵Michael Giacomelli2008-06-24
| | | | | | 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
* Fix for WMAv1 decoding suggested by Rafael Carre. I don't think anyone out ↵Michael Giacomelli2008-06-24
| | | | | | 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
* Fix mistake in previous WMA commit. Also update comments to reflect changes.Michael Giacomelli2008-04-21
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17202 a1c6a512-1295-4272-9138-f99709370657
* This table is probably 128 entries long beginning with -60. Greatly improves ↵Michael Giacomelli2008-04-18
| | | | | | 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
* Increase the size of one of the look up tables. Fixes 'burst of static' in ↵Michael Giacomelli2008-04-14
| | | | | | 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
* Make the WMA decoder less noisy in the sim.Michael Giacomelli2008-04-07
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17014 a1c6a512-1295-4272-9138-f99709370657
* Fix sim for now. Eventually I should change the decoder to error out if ↵Michael Giacomelli2008-04-07
| | | | | | theres a problem allocating huffman tables. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17013 a1c6a512-1295-4272-9138-f99709370657
* Let the console know when the huffman tables have overflown. This should ↵Michael Giacomelli2008-04-07
| | | | | | never happen. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17012 a1c6a512-1295-4272-9138-f99709370657
* Amazingly, I've only been initing about 1/2 the huffman table entries needed ↵Michael Giacomelli2008-04-07
| | | | | | 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
* Fix misleading debug statement.Michael Giacomelli2008-03-27
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16838 a1c6a512-1295-4272-9138-f99709370657
* Apply last fall's exponent fix to WMA v1 files as well.Michael Giacomelli2008-01-19
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16114 a1c6a512-1295-4272-9138-f99709370657
* If seek fails, don't insert nonsense for the current position. Also, make ↵Michael Giacomelli2008-01-06
| | | | | | one of the error messages a bit more clear. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16002 a1c6a512-1295-4272-9138-f99709370657
* Argh.Michael Giacomelli2007-10-29
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15368 a1c6a512-1295-4272-9138-f99709370657
* Copyright.Michael Giacomelli2007-10-29
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15367 a1c6a512-1295-4272-9138-f99709370657
* We removed the old Q15.16 precision trig functions from decoding ages ago, ↵Michael Giacomelli2007-10-29
| | | | | | 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
* Move multiply routines into the header. Give Coldfire a fixmul32b(). Remove ↵Thom Johansen2007-10-19
| | | | | | some tabs and empty lines. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15205 a1c6a512-1295-4272-9138-f99709370657
* Oversight in syncing on my end, sorry.Thom Johansen2007-10-18
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15184 a1c6a512-1295-4272-9138-f99709370657
* Add Coldfire and ARM assembler for "reverse multiply and copy" function too. ↵Thom Johansen2007-10-18
| | | | | | Gives big speedup on Coldfire, small on ARM. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15183 a1c6a512-1295-4272-9138-f99709370657
* Woops, movem.l needs other order.Thom Johansen2007-10-18
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15178 a1c6a512-1295-4272-9138-f99709370657
* Add Coldfire assembler for window and add function, yielding a nice speedup. ↵Thom Johansen2007-10-18
| | | | | | 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
* move structures around in the header filesMarcoen Hirschberg2007-10-01
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14941 a1c6a512-1295-4272-9138-f99709370657
* disable the ARM optimized MDCT for the Gigabeat for now as it creates a data ↵Marcoen Hirschberg2007-10-01
| | | | | | abort git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14940 a1c6a512-1295-4272-9138-f99709370657
* reuse the largest sin and cos tables for smaller sizesMarcoen Hirschberg2007-09-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14786 a1c6a512-1295-4272-9138-f99709370657
* fix a warning for coldfireMarcoen Hirschberg2007-09-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14779 a1c6a512-1295-4272-9138-f99709370657
* get rid of warningsMarcoen Hirschberg2007-09-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14778 a1c6a512-1295-4272-9138-f99709370657
* remove unused struct member and variableMarcoen Hirschberg2007-09-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14777 a1c6a512-1295-4272-9138-f99709370657
* move (i)MDCT and FFT code to separate filesMarcoen Hirschberg2007-09-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14776 a1c6a512-1295-4272-9138-f99709370657
* small cleanupsMarcoen Hirschberg2007-09-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14772 a1c6a512-1295-4272-9138-f99709370657
* Fix warning.Jens Arnold2007-09-02
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14577 a1c6a512-1295-4272-9138-f99709370657
* Apparently, negative exponents are possible when decoding exponential VLC. ↵Michael Giacomelli2007-09-02
| | | | | | 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
* Clean up iMDCT coefficient calculations.Michael Giacomelli2007-08-24
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14451 a1c6a512-1295-4272-9138-f99709370657
* Faster Q1.31 multiply for ARM. Add some ARM asm windowing code. Simply ↵Michael Giacomelli2007-08-16
| | | | | | 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
* use the full resolution we get from the WMA decoder and let the DSP code do ↵Marcoen Hirschberg2007-08-06
| | | | | | the rest git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14224 a1c6a512-1295-4272-9138-f99709370657
* Fix warning.Michael Giacomelli2007-08-06
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14207 a1c6a512-1295-4272-9138-f99709370657
* Clean up VLC functions.Michael Giacomelli2007-08-06
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14206 a1c6a512-1295-4272-9138-f99709370657
* Cosmetic changes - TAB and whitespace policing.Dave Chapman2007-08-02
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14135 a1c6a512-1295-4272-9138-f99709370657
* Initial attept at supporting Line Spectral Pairs. Various issues remain, ↵Michael Giacomelli2007-08-02
| | | | | | 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
* Fix overflow in noise coding. Greatly improves sound quality of some low ↵Michael Giacomelli2007-07-25
| | | | | | bitrate files git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13975 a1c6a512-1295-4272-9138-f99709370657
* Fix decoding of misc sample rates that no one ever usesMichael Giacomelli2007-07-21
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13946 a1c6a512-1295-4272-9138-f99709370657
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