rockbox/apps/codecs/wma.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

More completely flush WMA decoder state on seek to prevent artifact.

2012-04-04T00:15:16+00:00

Each MDCT depends on the previous frame for reconstruction.  Previosly these were not zeroed out when seeking, resulting in a few milliseconds of the previous frame playing with the current one.  Fix that.

Additionally, since the codec treats seeks to the start of a track as a "reset", flush the entire codec state in this event to ensure that everything is reset.

Change-Id: If593621a2922b0bbfa34f926f9bff31bee6b8c6a

Don't filter out -O for sims.

2012-01-22T19:33:37+00:00

It's not useful as it means we test code at a different -O level than
we run it at.
Fixes build errors caused by gcc 4.3. Fix some warnings
the change would introduce as well.

Change-Id: Id9ff31dc08694b0bfc5272f5e690c41f7918ed22

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

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

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

Correctly re-initialize wma decoder on next track. This fixes strange observed issues (noise, crashes) which only could be solved through re-entering the wma codec.

2011-02-03T11:05:33+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29202 a1c6a512-1295-4272-9138-f99709370657

Remove old debug line from wma.c.

2010-08-12T23:20:42+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27796 a1c6a512-1295-4272-9138-f99709370657

Modify WMA to produce non-interleaved stereo output (FS#11503 by me). speeds up wma by 3.5MHz on CF and 2.2MHz on ARM.

2010-07-28T12:45:21+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27591 a1c6a512-1295-4272-9138-f99709370657

Rename seek() to asf_seek()

2010-05-21T16:05:28+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26237 a1c6a512-1295-4272-9138-f99709370657