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, 2 insertions, 1 deletions

diff --git a/apps/codecs/wma.c b/apps/codecs/wma.c
index c327fafb5a..8986531744 100644
--- a/apps/codecs/wma.c
+++ b/apps/codecs/wma.c
@@ -84,7 +84,6 @@ restart_track:
             % wfx.packet_size;
         ci->seek_buffer(resume_offset - packet_offset);
         elapsedtime = asf_get_timestamp(&i);
-        ci->set_elapsed(elapsedtime);
     }
     else
     {
@@ -93,6 +92,8 @@ restart_track:
         elapsedtime = 0;
     }
 
+    ci->set_elapsed(elapsedtime);
+
     resume_offset = 0;
     ci->configure(DSP_SWITCH_FREQUENCY, wfx.rate);
     ci->configure(DSP_SET_STEREO_MODE, wfx.channels == 1 ?