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path: root/apps/codecs/demac/libdemac/decoder.c (follow)
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* Add codecs to librbcodec.Sean Bartell2012-04-25
| | | | | | | Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
* Use MEM_ALIGN_ATTR in libdemac instead of fixed alignment. Speeds up arm11 ↵Andree Buschmann2010-11-21
| | | | | | by ~6%. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28632 a1c6a512-1295-4272-9138-f99709370657
* Move (small) data into DRAM on PP5020, it's ~4.5% faster that way. Closes ↵Jens Arnold2010-03-10
| | | | | | about half of the performance gap towards PP5022. The (relatively large) buffers for decoded data stay in IRAM, as does the reciprocal table. Clarify some comments. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25108 a1c6a512-1295-4272-9138-f99709370657
* libdemac: Separate filtering calls per channel in preparation for the ↵Jens Arnold2010-03-03
| | | | | | dual-core split on PP. This also means less inlining, and hence speeds up decoding on single core slightly, due to better caching behaviour. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25005 a1c6a512-1295-4272-9138-f99709370657
* Improve libdemac SATURATE slightly on ARMv4/5, move filter buffers and code ↵Andrew Mahone2010-01-30
| | | | | | out of IRAM for sizes that aren't near realtime and extend udiv32_arm reciprocal table. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24376 a1c6a512-1295-4272-9138-f99709370657
* Fix decoding of stereo frames with silence in only one channel. * Make the ↵Jens Arnold2008-12-21
| | | | | | standalone decoder contain debugging information. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19552 a1c6a512-1295-4272-9138-f99709370657
* Fix handling of 8 bit mono and stereo APE files, and also optimise 16 and 24 ↵Jens Arnold2008-12-21
| | | | | | bit output in the standalone decoder a bit. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19517 a1c6a512-1295-4272-9138-f99709370657
* Fix APE 16-bit mono output: mono signals need to be scaled for rockbox.Jens Arnold2008-11-30
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19264 a1c6a512-1295-4272-9138-f99709370657
* Get rid of unused return values, except the one from decode_chunk() which ↵Jens Arnold2008-11-26
| | | | | | will be used in the dual core split. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19236 a1c6a512-1295-4272-9138-f99709370657
* Compile-time choice between 16 bit and 32 bit integers for the filters. 32 ↵Jens Arnold2008-11-19
| | | | | | bit filters are faster on ARMv4 (with assembler code), so use them there. Nice speedup on PP and Gigabeat F/X. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19140 a1c6a512-1295-4272-9138-f99709370657
* Centralise compile-time configuration.Jens Arnold2008-11-16
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19121 a1c6a512-1295-4272-9138-f99709370657
* Fix comments.Jens Arnold2008-11-12
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19102 a1c6a512-1295-4272-9138-f99709370657
* Various speedups: (1) Put actual decoding functions into IRAM on PP5002. (2) ↵Jens Arnold2008-10-03
| | | | | | Put the insane filter buffer into IRAM on coldfire and PP502x (just for completeness, as long as there's no better use). (3) Use the ARMv6 'ssat' instruction for saturation on Gigabeat S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18701 a1c6a512-1295-4272-9138-f99709370657
* APE codec: Assembler optimised vector math routines for coldfire. -c2000 is ↵Jens Arnold2007-10-18
| | | | | | now usable at 130% realtime (was 107%), -c3000 is near realtime (93%, was 64%). -c1000 doesn't change. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15194 a1c6a512-1295-4272-9138-f99709370657
* C optimisations to the predictor decoding - create a single function for ↵Dave Chapman2007-06-10
| | | | | | decoding stereo streams, and reorganise to minimise the number of variables used. My -c1000 test track now decodes at 93% realtime on PortalPlayer (was 78%), 187% on Coldfire (was 170%) and 447% on Gigabeat (was 408%). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13608 a1c6a512-1295-4272-9138-f99709370657
* Seeking and resume support for Monkey's AudioDave Chapman2007-06-08
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13597 a1c6a512-1295-4272-9138-f99709370657
* Initial commit of Monkey's Audio (.ape/.mac) support. Note that Monkey's is ↵Dave Chapman2007-06-05
an extremely CPU-intensive codec, and that the decoding speed is directly related to the compression level (-c1000, -c2000, -c3000, -c4000 or -c5000) used when encoding the file. Current performance is: -c1000 to -c3000 are realtime on a Gigabeat, -c1000 is realtime on Coldfire targets (H100, H300 and Cowon), and nothing is realtime on PortalPlayer targets (iPods, H10, Sansa). Hopefully this can be improved. More information at FS #7256. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13562 a1c6a512-1295-4272-9138-f99709370657
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