- removed mmap control device
- reordered pcm shared and not shared code
- changed O_WRONLY oss pcm modifier in a more symmetric and elegant way
- changed slightly control interface
- added snd-debug-check
- uniformed null pointer check
- fixed a typo in linear plugin
Sun, 12 Dec 1999 17:30:00 +0100 (CET)
Submitted adpcm.c has messed source - it is OK, but 'indent' wrapped all
long lines. I corrected that, and please find a patch to current CVS which
cleans this mess.
Sat, 11 Dec 1999 19:16:00 +0100 (CET)
Attached is a diff for new adpcm implementation. Sun's CCITT g721 adpcm
codec is NOT IMA adpcm. IMA codec is very simple and better than g721, so
I replaced g721 with included one. Implementation has been tested against
some test files which I got, and should work according to IMA
specification.
Sat, 11 Dec 1999 08:45:24 +0100
- changed lowlevel drivers to use pcm_misc.c functions
- fixed some bugs in pcm_plugin_build
- the plugin code is shared between alsa-lib and alsa-driver
Thu, 09 Dec 1999 09:56:47 +0100
Rate plugin is now ready for optimizations (I've verified reading asm
generated that loop unrolling is not fully satisfactory, I'll try
another solution later today).
Sun, 05 Dec 1999 19:02:01 +0100
Bug fixed:
- duplicated deallocation for mmap'ed area
- missing deallocation in es18xx
- some bugs in volbal conversion
New features:
- virtual mixer for card-share (it seems to work, but I feel that it
need further testing)
Misc:
- reorganization and extension of rate.c
Jaroslav changes:
- volbal source is mostly reverted back (no card-share mixer polling)
Uros Bizjak <uros@kss-loka.si>
Included in this message, you will find a diff to alsa-lib, which
implements g721 adpcm codec. It works well (only consumes a lot of CPU),
and it plays back the same data as is recorded.
Also added is CSP patch, which adds noise suppression when CSP is
started or stopped (A few TODOs less :) Also changed is copyright for
mulaw, alaw and adpcm codecs (Based on sun implementation ... + I added
myself - if you don't mind. Please check this copyright, if it is OK)
