infinite sound (#2372)

* make sound infinite loopable

* Update selfdrive/ui/android/sl_sound.cc

* fix loop

* fix test threshold

* more fix

Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>
Co-authored-by: Comma Device <device@comma.ai>

selfdrive/controls/lib/events.py

@@ -739,7 +739,7 @@ EVENTS: Dict[int, Dict[str, Union[Alert, Callable[[Any, messaging.SubMaster, boo
       "Speed Too High",
       "Slow down to resume operation",
       AlertStatus.normal, AlertSize.mid,
-      Priority.HIGH, VisualAlert.steerRequired, AudibleAlert.chimeWarning2Repeat, 2.2, 3., 4.),
+      Priority.HIGH, VisualAlert.steerRequired, AudibleAlert.none, 2.2, 3., 4.),
     ET.NO_ENTRY: Alert(
       "Speed Too High",
       "Slow down to engage",

selfdrive/test/test_sounds.py

@@ -19,8 +19,8 @@ SOUNDS = {
   AudibleAlert.chimePrompt: 85,
   AudibleAlert.chimeWarning1: 80,
   AudibleAlert.chimeWarning2: 107,
-  AudibleAlert.chimeWarningRepeat: 134,
   AudibleAlert.chimeWarning2Repeat: 177,
+  AudibleAlert.chimeWarningRepeat: 240,
 }
 
 def get_total_writes():
@@ -67,5 +67,6 @@ def test_alert_sounds():
       pm.send('controlsState', msg)
       time.sleep(DT_CTRL)
 
+    tolerance = (expected_writes % 100) * 2
     actual_writes = get_total_writes() - start_writes
-    assert abs(expected_writes - actual_writes) <= 2, f"{alert_sounds[sound]}: expected {expected_writes} writes, got {actual_writes}"
+    assert abs(expected_writes - actual_writes) <= tolerance, f"{alert_sounds[sound]}: expected {expected_writes} writes, got {actual_writes}"

selfdrive/ui/android/sl_sound.cc

@@ -15,7 +15,6 @@
 struct SLSound::Player {
   SLObjectItf player;
   SLPlayItf playItf;
-  // slplay_callback runs on a background thread,use atomic to ensure thread safe.
   std::atomic<int> repeat;
 };
 
@@ -57,8 +56,8 @@ bool SLSound::init() {
 
 void SLAPIENTRY slplay_callback(SLPlayItf playItf, void *context, SLuint32 event) {
   SLSound::Player *s = reinterpret_cast<SLSound::Player *>(context);
-  if (event == SL_PLAYEVENT_HEADATEND && s->repeat > 1) {
-    --s->repeat;
+  if (event == SL_PLAYEVENT_HEADATEND && s->repeat != 0) {
+    if (s->repeat > 0) --s->repeat;
     (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_STOPPED);
     (*playItf)->SetMarkerPosition(playItf, 0);
     (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_PLAYING);
@@ -69,10 +68,13 @@ bool SLSound::play(AudibleAlert alert) {
   if (currentSound_ != AudibleAlert::NONE) {
     stop();
   }
+
   auto player = player_.at(alert);
   SLPlayItf playItf = player->playItf;
-  player->repeat = sound_map[alert].second;
-  if (player->repeat > 0) {
+
+  int loops = sound_map[alert].second;
+  player->repeat = loops > 0 ? loops - 1 : loops;
+  if (player->repeat != 0) {
     ReturnOnError((*playItf)->RegisterCallback(playItf, slplay_callback, player), "Failed to register callback");
     ReturnOnError((*playItf)->SetCallbackEventsMask(playItf, SL_PLAYEVENT_HEADATEND), "Failed to set callback event mask");
   }

selfdrive/ui/qt/qt_sound.cc

@@ -9,7 +9,7 @@ QtSound::QtSound() {
 }
 
 bool QtSound::play(AudibleAlert alert) {
-  sounds[alert].setLoopCount(sound_map[alert].second);
+  sounds[alert].setLoopCount(sound_map[alert].second>-1 ? sound_map[alert].second : QSoundEffect::Infinite);
   sounds[alert].setVolume(0.9);
   sounds[alert].play();
   return true;

selfdrive/ui/sound.hpp

@@ -11,7 +11,7 @@ static std::map<AudibleAlert, std::pair<const char *, int>> sound_map {
   {AudibleAlert::CHIME_WARNING1, {"../assets/sounds/warning_1.wav", 0}},
   {AudibleAlert::CHIME_WARNING2, {"../assets/sounds/warning_2.wav", 0}},
   {AudibleAlert::CHIME_WARNING2_REPEAT, {"../assets/sounds/warning_2.wav", 3}},
-  {AudibleAlert::CHIME_WARNING_REPEAT, {"../assets/sounds/warning_repeat.wav", 3}},
+  {AudibleAlert::CHIME_WARNING_REPEAT, {"../assets/sounds/warning_repeat.wav", -1}},
   {AudibleAlert::CHIME_ERROR, {"../assets/sounds/error.wav", 0}},
   {AudibleAlert::CHIME_PROMPT, {"../assets/sounds/error.wav", 0}}
 };