Commit graph

14 commits

Author SHA1 Message Date
Dave Chapman
1a03c37947 A better count_leading_zeros() function, courtesy of Jens Arnold
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8577 a1c6a512-1295-4272-9138-f99709370657
2006-02-05 09:12:57 +00:00
Dave Chapman
347992e9d9 Optimised C version of count_leading_zeros() taken from alac-0.1.1. This makes ALAC very close to realtime on the ipod (just the very occasional skip during disk reading - it is realtime when the disk is sleeping).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8545 a1c6a512-1295-4272-9138-f99709370657
2006-02-03 08:27:53 +00:00
Magnus Holmgren
1b0d1daf38 Codec makefile cleanup: remove redundant things, don't generate dependency files when cleaning.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8154 a1c6a512-1295-4272-9138-f99709370657
2005-12-05 19:32:13 +00:00
Dave Chapman
439ba9bdbb Move code into IRAM and explicitly inline some functions (gcc was inlining them anyway, but this way is better)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7741 a1c6a512-1295-4272-9138-f99709370657
2005-11-03 18:14:37 +00:00
Dave Chapman
6934eaf225 Oops
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7683 a1c6a512-1295-4272-9138-f99709370657
2005-10-29 18:00:04 +00:00
Dave Chapman
45f9e5d7b0 Remove generic M4A parsing code from libalac and create a libm4a - so it can be used by other codecs
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7682 a1c6a512-1295-4272-9138-f99709370657
2005-10-29 17:12:52 +00:00
Dave Chapman
f1844c4166 1) Always enable the DSP. 2) Change codec to output one 32-bit array per channel containing samples left-shifted to 28-bits (instead of 16-bit interleaved samples). 3) Remove the two 16KB internal predicterror_buffer arrays (we use the output arrays instead) 4) Small internal rearrangement of the code.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7667 a1c6a512-1295-4272-9138-f99709370657
2005-10-28 00:11:28 +00:00
Linus Nielsen Feltzing
dc9e201671 Support for a colon-separated path in APPEXTRA
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7663 a1c6a512-1295-4272-9138-f99709370657
2005-10-27 14:39:00 +00:00
Thom Johansen
292e4e90d7 Introduced usage of IBSS_ATTR and ICONST_ATTR in codec libraries.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7660 a1c6a512-1295-4272-9138-f99709370657
2005-10-27 11:39:01 +00:00
Dave Chapman
9a625ef7ac Add yield() calls inside the monolithic ALAC decode_frame() function - improves responsiveness of UI during ALAC decoding
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7557 a1c6a512-1295-4272-9138-f99709370657
2005-09-24 12:35:18 +00:00
Dave Chapman
cae670ff1f Cascade errors back down to qtmovie_read() and correctly return an error on invalid ALAC files - should prevent crashes when attempting to play AAC files using ALAC decoder
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7556 a1c6a512-1295-4272-9138-f99709370657
2005-09-24 11:56:36 +00:00
Jonas Häggqvist
9f41c6c11e Workaround for ALAC files that previousy wouldn't play. Libalac now skips unknown chunk IDs. Time display and seeking is broken for those files (the ones that played before still work). Patch by Alyssa Milburn.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7552 a1c6a512-1295-4272-9138-f99709370657
2005-09-24 02:12:42 +00:00
Dave Chapman
debbe9747e First Rockbox version of ALAC decoder - porting to work in Rockbox environment and some simple (but significant) optimisations
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7544 a1c6a512-1295-4272-9138-f99709370657
2005-09-22 20:46:58 +00:00
Dave Chapman
711b2e3c88 Initial (unmodified - for reference) import of David Hammerton's Apple Lossless (ALAC) decoder from http://crazney.net/programs/itunes/alac.html
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7541 a1c6a512-1295-4272-9138-f99709370657
2005-09-22 18:47:04 +00:00