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

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

1 files changed, 1 insertions, 2 deletions

diff --git a/apps/codecs/mod.c b/apps/codecs/mod.c
index 3703ecd304..5bd64994f1 100644
--- a/apps/codecs/mod.c
+++ b/apps/codecs/mod.c
@@ -1333,12 +1333,11 @@ enum codec_status codec_run(void)
             /* New time is ready in param */
             modplayer.patterntableposition = param/1000;
             modplayer.currentline = 0;
-            ci->set_elapsed(modplayer.patterntableposition*1000+500);
             ci->seek_complete();
         }
 
         if(old_patterntableposition != modplayer.patterntableposition) {
-          ci->set_elapsed(modplayer.patterntableposition*1000+500);
+          ci->set_elapsed(modplayer.patterntableposition*1000);
           old_patterntableposition=modplayer.patterntableposition;
         }