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16 commits

Author SHA1 Message Date
Andree Buschmann
f163b405c0 Fully remove floating point code from libmusepack. Introduce two small const arrays for precalculated scalefactors, correct the integer type of scalefactors to unsigned, migrate some metadata calculations to fixed point. No impact to decoder output. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30497 a1c6a512-1295-4272-9138-f99709370657
 2011-09-10 20:35:04 +00:00
Andree Buschmann
3f4e0cf25b Set alignment for major data arrays in the mpc codec. This avoids performance regressions on S5L870x CPUs when changing code and allows further improvements. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28561 a1c6a512-1295-4272-9138-f99709370657
 2010-11-12 07:04:07 +00:00
Andree Buschmann
b3d9578c27 Major change to musepack decoder: Import v1.3.0 (r458 from svn.musepack.net) to rockbox. Several adaptions in the musepack decoder were made to get the library work and perform fast under rockbox on several targets. With this change mpc sv8 is supported, including seek, replay gain and metadata support. The decoding speed is a 1-4% lower than the last implementation. Reason for this is main restructuring in the bitstream demuxer. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25056 a1c6a512-1295-4272-9138-f99709370657
 2010-03-07 19:34:44 +00:00
Andree Buschmann
25ffa8b198 Solve possible glitch after seeking in mpc files. Documented the special treatment after seek. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17829 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 12:55:34 +00:00
Andree Buschmann
cc11e9466a Further changes in mpc buffered seek. Remove magical number and replace it with a better commented #define. Use shift and bit mask instead of division and modulo operations when using the seek buffer. Saves some binary size for the codec. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17686 a1c6a512-1295-4272-9138-f99709370657
 2008-06-04 05:41:59 +00:00
Andree Buschmann
6a74a5dd3b Commit FS#9015. Rework of musepack buffered seek. Now a static seek buffer of 8192 entries is used. The seeking precision is adapted to the length of the file (e.g. 26ms for files <=3.5min and 0.4s for files ~60min). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17604 a1c6a512-1295-4272-9138-f99709370657
 2008-05-22 09:58:19 +00:00
Andree Buschmann
1d28fe7d79 Musepack seek hotfix. Do not dynamically allocate seek buffer but use a buffer of constant size (~28.5min). Files larger than this will still not seek properly. Some additional rework has to be done for the seek buffer. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17584 a1c6a512-1295-4272-9138-f99709370657
 2008-05-19 18:06:00 +00:00
Andree Buschmann
ff78cd8418 Commit FS#9000. Speed up Musepack decoder by 3% on PP5022/24 via using ICODE_ATTR for calc_new_V(). Additionally correct a type in decoder-struct. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17552 a1c6a512-1295-4272-9138-f99709370657
 2008-05-17 11:11:01 +00:00
Andree Buschmann
14d45c9d17 Removed non-active seek mechanism from musepack library, small other cleanups. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17446 a1c6a512-1295-4272-9138-f99709370657
 2008-05-10 20:33:28 +00:00
Andree Buschmann
a7a2baa97f Some changes for musepack: Disable SV4-SV6 support (I guess I am the only one who oned such). Remove tabs, perform some minor code beautification and add ICONST_ATTR to some requantization constants. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17438 a1c6a512-1295-4272-9138-f99709370657
 2008-05-10 15:15:10 +00:00
Thom Johansen
7197c0e588 Put Musepack output data array back in IRAM for faster DSP processing. Patch by Andrew Cupper. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10844 a1c6a512-1295-4272-9138-f99709370657
 2006-09-01 12:09:20 +00:00
Thom Johansen
20332bce1d FS patch #5172 by Andrew Cupper. Musepack seeking support. Decoder should also be faster. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10827 a1c6a512-1295-4272-9138-f99709370657
 2006-08-31 18:18:57 +00:00
Thom Johansen
43a105aae3 Make libmusepack output the last frame in two passes. Reclaim the IRAM taken in the last commit. Please let me know if you can hear any artifacts or get any broken files from this! 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9825 a1c6a512-1295-4272-9138-f99709370657
 2006-04-27 23:52:55 +00:00
Thom Johansen
2b483958f9 Synced libmpcdec to musepack.net SVN. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8488 a1c6a512-1295-4272-9138-f99709370657
 2006-01-30 01:00:40 +00:00
Thom Johansen
c01b987cca Squeezed two very frequently used arrays in IRAM for a very nice performance boost. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7676 a1c6a512-1295-4272-9138-f99709370657
 2005-10-28 20:21:58 +00:00
Thom Johansen
ad17fd4747 Musepack support, complete with mpc2wav plugin. Thanks go out to rasher for initiating the port. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6276 a1c6a512-1295-4272-9138-f99709370657
 2005-04-12 21:29:48 +00:00