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path: root/apps/codecs/Tremor/mdct_lookup.h (follow)
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* 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
* Remove obsolete commentNils Wallménius2008-04-03
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16942 a1c6a512-1295-4272-9138-f99709370657
* Introduced usage of IBSS_ATTR and ICONST_ATTR in codec libraries.Thom Johansen2005-10-27
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7660 a1c6a512-1295-4272-9138-f99709370657
* Tweaked IRAM usage in the Vorbis codec. Speeds up decoding by about 10% on a ↵Magnus Holmgren2005-07-28
| | | | | | couple of test files. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7249 a1c6a512-1295-4272-9138-f99709370657
* Vorbis opts: keep floor1 lookup table in IRAM.Pedro Vasconcelos2005-06-08
| | | | | | | | 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
* Vorbis optimizations: allocation of PCM buffers in IRAM, avoiding copying.Pedro Vasconcelos2005-06-06
| | | | | | | Slight code improvements to the MDCT functions. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6590 a1c6a512-1295-4272-9138-f99709370657
* Basic optimizations of the Vorbis decoder for the ihp-1x0.Pedro Vasconcelos2005-05-27
| | | | | | | 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
* Initial commit of the the Ogg Vorbis 'Tremor' integer playback codecMarcoen Hirschberg2005-02-17
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5996 a1c6a512-1295-4272-9138-f99709370657