commit 635e743ad22592ca5a0232b58599e0a624edaeb6
author Mikhail Naganov <mnaganov@google.com> Fri Jun 02 13:51:00 2017 -0700
committer Mikhail Naganov <mnaganov@google.com> Fri Jun 02 13:54:00 2017 -0700
tree 2e1933958097473d3ce33a89dee4acd029f7a669
parent 9e737dea6d986b8e5195fd5151f4e02f5ba746b9

Fix parameters passed to pcm_open to include PCM_MONOTONIC

This fixes the problem of not getting CLOCK_MONOTONIC timestamps
from output stream's get_presentation_position function

Bug: 37755299
Test: aaudio LOW_LATENCY mode
Change-Id: I256fa2769ced99139b3c7690e0908ac69359067c

hal/audio_hw.c

diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index e7de4a9..6f0c9c9 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -1673,7 +1673,7 @@
             goto error_open;
         }
     } else {
-        unsigned int flags = PCM_OUT;
+        unsigned int flags = PCM_OUT | PCM_MONOTONIC;
         unsigned int pcm_open_retry_count = 0;
 
         if (out->usecase == USECASE_AUDIO_PLAYBACK_AFE_PROXY) {
@@ -1681,8 +1681,7 @@
             pcm_open_retry_count = PROXY_OPEN_RETRY_COUNT;
         } else if (out->realtime) {
             flags |= PCM_MMAP | PCM_NOIRQ;
-        } else
-            flags |= PCM_MONOTONIC;
+        }
 
         while (1) {
             out->pcm = pcm_open(adev->snd_card, out->pcm_device_id,