Fix a problem with audio not starting on a list of short files

Forced audio start was left out when a third codec attempts to
start a second track transition. Only one pending transition is
allowed at a time. There wouldn't be enough PCM in the buffer to
trigger audio playback and audio would just return without giving
the pcm buffer a kick.

Fixes FS#13100 - Player failed on short tracks

Change-Id: I338b0b12022c591930451fd5ed26a2a73008835f

1 files changed, 7 insertions, 0 deletions

diff --git a/apps/playback.c b/apps/playback.c
index 8a25375fec..54410ad2cc 100644
--- a/apps/playback.c
+++ b/apps/playback.c
@@ -2376,9 +2376,16 @@ static void audio_on_codec_complete(int status)
            Skipping: There was already a skip in progress, remember it and
                      allow no further progress until the PCM from the previous
                      song has finished
+
+           This function will be reentered upon completing the existing
+           transition in order to do the one that was just tried (below)
          */
         codec_skip_pending = true;
         codec_skip_status = status;
+
+        /* PCM buffer must know; audio could still be filling and hasn't
+           yet reached the play watermark */
+        pcmbuf_start_track_change(TRACK_CHANGE_AUTO_PILEUP);
         return;
     }