From: Carl Hetherington <cth@carlh.net>
Date: Mon, 15 Apr 2019 11:34:06 +0000 (+0100)
Subject: Report playback latency for PulseAudio.
X-Git-Url: https://main.carlh.net/gitweb/?p=rtaudio-cdist.git;a=commitdiff_plain;h=350f2d101a5157103604a52c6e0bd88b23d620e0;hp=e46da8995672eda8500a8567c3edcdeef9b44e3d

Report playback latency for PulseAudio.
---

diff --git a/RtAudio.cpp b/RtAudio.cpp
index 1b27de1..264d5f6 100644
--- a/RtAudio.cpp
+++ b/RtAudio.cpp
@@ -8640,6 +8640,14 @@ void RtApiPulse::callbackEvent( void )
   MUTEX_UNLOCK( &stream_.mutex );
   RtApi::tickStreamTime();
 
+  if (pah->s_play) {
+    int e = 0;
+    pa_usec_t const lat = pa_simple_get_latency(pah->s_play, &e);
+    if (e == 0) {
+      stream_.latency[0] = lat * stream_.sampleRate / 1000000;
+    }
+  }
+
   if ( doStopStream == 1 )
     stopStream();
 }