[audio][audioflinger] Consume all frames when a DirectThread is done.

This bug was causing movies to think there was still data left to play so they never finished.

Bug: 18360054
Change-Id: If7aee81d62b7af8532abd14579677848a06fe2b1
Signed-off-by: Phil Burk <philburk@google.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index dab6d91..685c1c4 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -4003,9 +4003,14 @@ AudioFlinger::PlaybackThread::mixer_state AudioFlinger::DirectOutputThread::prep
         bool last = l.get() == track;
 
         // The first time a track is added we wait
-        // for all its buffers to be filled before processing it
+        // for all its buffers to be filled before processing it.
+        // Allow draining the buffer in case the client
+        // app does not call stop() and relies on underrun to stop:
+        // hence the test on (track->mRetryCount > 1).
+        // If retryCount<=1 then track is about to underrun and be removed.
         uint32_t minFrames;
-        if ((track->sharedBuffer() == 0) && !track->isStopping_1() && !track->isPausing()) {
+        if ((track->sharedBuffer() == 0) && !track->isStopping_1() && !track->isPausing()
+            && (track->mRetryCount > 1)) {
             minFrames = mNormalFrameCount;
         } else {
             minFrames = 1;