Michael Giacomelli
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5bd339c9f9
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Clean up a lot of old and ugly comments. Wrap some long lines. Remove unneeded fixed point function. Move some fixed point math functions out of wmadeci. No functional changes.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22077 a1c6a512-1295-4272-9138-f99709370657
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2009-07-28 22:19:53 +00:00 |
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Michael Giacomelli
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1334738071
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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
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2008-07-17 17:43:49 +00:00 |
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Daniel Stenberg
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2acc0ac542
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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
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2008-06-28 18:10:04 +00:00 |
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Michael Giacomelli
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781c82c0d6
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Argh.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15368 a1c6a512-1295-4272-9138-f99709370657
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2007-10-29 23:22:33 +00:00 |
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Michael Giacomelli
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132bc634ed
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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
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2007-10-29 23:16:41 +00:00 |
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Thom Johansen
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877ea486ba
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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
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2007-10-19 12:27:38 +00:00 |
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Marcoen Hirschberg
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b8753ffdaa
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move structures around in the header files
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14941 a1c6a512-1295-4272-9138-f99709370657
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2007-10-01 13:46:07 +00:00 |
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Marcoen Hirschberg
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4d853fff2f
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fix a warning for coldfire
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14779 a1c6a512-1295-4272-9138-f99709370657
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2007-09-20 13:52:41 +00:00 |
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Marcoen Hirschberg
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1ddef375df
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move (i)MDCT and FFT code to separate files
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14776 a1c6a512-1295-4272-9138-f99709370657
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2007-09-20 12:27:24 +00:00 |
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Michael Giacomelli
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8159b9ee9a
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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
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2007-08-16 03:33:15 +00:00 |
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Michael Giacomelli
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030dce6f88
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Fix previous
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13814 a1c6a512-1295-4272-9138-f99709370657
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2007-07-08 05:57:14 +00:00 |
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Jens Arnold
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e7cdd6cbc6
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Assemblerised CMUL() for ARM, giving ~20% speedup.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13787 a1c6a512-1295-4272-9138-f99709370657
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2007-07-04 19:23:18 +00:00 |
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Michael Giacomelli
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fe8ae10ab4
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Attempt #2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13786 a1c6a512-1295-4272-9138-f99709370657
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2007-07-04 17:51:52 +00:00 |
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Michael Giacomelli
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a16d0f389e
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Code clean up: Move fixed point functions into their own files. Move various lookup tables into header files.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13784 a1c6a512-1295-4272-9138-f99709370657
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2007-07-04 17:15:09 +00:00 |
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