rockbox/apps/codecs/spc.c, branch master

Add codecs to librbcodec.

2012-04-25T20:13:20+00:00

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius 
Tested-by: Nils Wallménius

Commit to certain names for cache coherency APIs and discard the aliases.

2011-12-17T07:27:24+00:00

Wouldn't surprise me a bit to get some non-green.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31339 a1c6a512-1295-4272-9138-f99709370657

Submit parts of FS#12189 regarding codec API. Replaces access to global settings with a dedicated function to determine if the current track shall be looped. Used by several synthesizer codecs.

2011-08-30T19:40:09+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30391 a1c6a512-1295-4272-9138-f99709370657

Commit work started in FS#12153 to put timing/position information in PCM

2011-08-28T07:45:35+00:00

buffer chunks.

* Samples and position indication is closely associated with audio data
  instead of compensating by a latency constant. Alleviates problems with
  using the elapsed as a track indicator where it could be off by several
  steps.

* Timing is accurate throughout track even if resampling for pitch shift,
  whereas before it updated during transition latency at the normal 1:1 rate.

* Simpler PCM buffer with a constant chunk size, no linked lists.

In converting crossfade, a minor change was made to not change the WPS until
the fade-in of the incoming track, whereas before it would change upon the
start of the fade-out of the outgoing track possibly having the WPS change
with far too much lead time.

Codec changes are to set elapsed times *before* writing next PCM frame because
 time and position data last set are saved in the next committed PCM chunk. 


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30366 a1c6a512-1295-4272-9138-f99709370657

FS#12140 by Sean Bartell, Make various codec stuff static.

2011-06-01T10:28:26+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29942 a1c6a512-1295-4272-9138-f99709370657

FS#12113: Optimize IRAM configuration for SPC. Performance increases by 5-6% on PP5022, PP5024 and S5L870x. No change of performance on Coldfire, PP5002 and PP5020.

2011-05-15T16:08:50+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29887 a1c6a512-1295-4272-9138-f99709370657

Commit FS#12069 - Playback rework - first stages. Gives as thorough as possible a treatment of codec management, track change and metadata logic as possible while maintaining fairly narrow focus and not rewriting everything all at once. Please see the rockbox-dev mail archive on 2011-04-25 (Playback engine rework) for a more thorough manifest of what was addressed. Plugins and codecs become incompatible.

2011-04-27T03:08:23+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29785 a1c6a512-1295-4272-9138-f99709370657

Merge functionality of wakeups and semaphores-- fewer APIs and object types. semaphore_wait takes a timeout now so codecs and plugins have to be made incompatible. Don't make semaphores for targets not using them.

2011-03-02T08:49:38+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29492 a1c6a512-1295-4272-9138-f99709370657

Enforce that codecs wait for their metadata in a proper-ish and consistent manner. Sort of a halfway patch; best would be to give them an internal copy of the current track information which lasts unaltered by playback until a track switch or unload.

2011-02-20T15:27:10+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29348 a1c6a512-1295-4272-9138-f99709370657

Take 2 at 'Consolidate all fixed point math routines in one library' (FS#10400) by Jeffrey Goode

2009-07-05T18:06:07+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21664 a1c6a512-1295-4272-9138-f99709370657