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.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18412 a1c6a512-1295-4272-9138-f99709370657
2008-09-04 18:02:10 +00:00
Magnus Holmgren
93e41276be
Recude iram usage for the Vorbis decoder a little. Makes it possible to build with gcc 4.0.3.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10891 a1c6a512-1295-4272-9138-f99709370657
2006-09-05 17:47:48 +00:00
Magnus Holmgren
41cea75095
Vorbis optimizations from Brandon Low (part of patch 1387611). Reduces cpu boost ratio on a test track by about 6 percentage points. Also fixes broken simulator playback caused by my previous Tremor commit.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8291 a1c6a512-1295-4272-9138-f99709370657
2005-12-28 20:42:24 +00:00
Pedro Vasconcelos
6b9350b4d3
A little improvement on Vorbis block synthesis.
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Added myself to the list of contributors.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6664 a1c6a512-1295-4272-9138-f99709370657
2005-06-10 22:34:57 +00:00
Pedro Vasconcelos
0a3f8e0924
Vorbis opts: keep floor1 lookup table in IRAM.
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Slightly faster 16-bit clipping function.
Misc: changed tabs for spaces to conform with Rockbox coding standards.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6608 a1c6a512-1295-4272-9138-f99709370657
2005-06-08 13:09:30 +00:00
Pedro Vasconcelos
0f10e898f0
Vorbis optimizations: allocation of PCM buffers in IRAM, avoiding copying.
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Slight code improvements to the MDCT functions.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6590 a1c6a512-1295-4272-9138-f99709370657
2005-06-06 23:01:51 +00:00
Pedro Vasconcelos
024db0a766
Basic optimizations of the Vorbis decoder for the ihp-1x0.
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Capable of real-time decoding with cpu freq at 120mhz.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6527 a1c6a512-1295-4272-9138-f99709370657
2005-05-27 09:14:00 +00:00
Jens Arnold
b363d65625
Get malloc() and friends out of the way for the cygwin linker (and maybe others), to make plugins work properly in the simulator.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6086 a1c6a512-1295-4272-9138-f99709370657
2005-02-28 20:55:31 +00:00
Marcoen Hirschberg
99d2599b79
Initial commit of the the Ogg Vorbis 'Tremor' integer playback codec
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5996 a1c6a512-1295-4272-9138-f99709370657
2005-02-17 09:08:18 +00:00
