sound cleanup (#20491)

* fix high CPU usage when playing repeated sounds

* fix build

* fix cpu usage

* same behavior for now

Co-authored-by: Comma Device <device@comma.ai>

selfdrive/ui/SConscript

@@ -16,7 +16,7 @@ if arch == "Darwin":
   qt_env['FRAMEWORKS'] += ['OpenCL']
 
 widgets_src = ["qt/widgets/input.cc", "qt/widgets/drive_stats.cc",
-               "qt/widgets/ssh_keys.cc", "qt/widgets/toggle.cc", "qt/widgets/controls.cc", "qt/qt_sound.cc",
+               "qt/widgets/ssh_keys.cc", "qt/widgets/toggle.cc", "qt/widgets/controls.cc", "qt/sound.cc",
                "qt/widgets/offroad_alerts.cc", "qt/widgets/setup.cc", "qt/widgets/keyboard.cc",
                "#phonelibs/qrcode/QrCode.cc"]
 if arch != 'aarch64':

selfdrive/ui/qt/home.hpp

@@ -9,7 +9,7 @@
 #include <QTimer>
 #include <QWidget>
 
-#include "qt_sound.hpp"
+#include "sound.hpp"
 #include "ui/ui.hpp"
 #include "widgets/offroad_alerts.hpp"
 
@@ -38,7 +38,7 @@ private:
   QTimer* timer;
   QTimer* backlight_timer;
 
-  QtSound sound;
+  Sound sound;
 
   bool onroad = true;
   double prev_draw_t = 0;

selfdrive/ui/qt/qt_sound.hpp

@@ -1,16 +0,0 @@
-#pragma once
-
-#include <QSoundEffect>
-#include "sound.hpp"
-
-class QtSound : public Sound {
-public:
-  QtSound();
-  bool play(AudibleAlert alert);
-  void stop();
-  void setVolume(int volume);
-  float volume = 0;
-
-private:
-  std::map<AudibleAlert, QSoundEffect> sounds;
-};

selfdrive/ui/qt/sound.cc

@@ -1,22 +1,21 @@
 #include <QUrl>
-#include "qt_sound.hpp"
+#include "sound.hpp"
 
-QtSound::QtSound() {
+Sound::Sound() {
   for (auto &kv : sound_map) {
     auto path = QUrl::fromLocalFile(kv.second.first);
     sounds[kv.first].setSource(path);
   }
 }
 
-bool QtSound::play(AudibleAlert alert) {
+void Sound::play(AudibleAlert alert) {
   int loops = sound_map[alert].second> - 1 ? sound_map[alert].second : QSoundEffect::Infinite;
   sounds[alert].setLoopCount(loops);
   sounds[alert].setVolume(volume);
   sounds[alert].play();
-  return true;
 }
 
-void QtSound::stop() {
+void Sound::stop() {
   for (auto &kv : sounds) {
     // Only stop repeating sounds
     if (sound_map[kv.first].second != 0) {
@@ -24,7 +23,3 @@ void QtSound::stop() {
     }
   }
 }
-
-void QtSound::setVolume(int volume) {
-  // TODO: implement this
-}

selfdrive/ui/qt/sound.hpp

@@ -1,5 +1,7 @@
 #pragma once
+
 #include <map>
+#include <QSoundEffect>
 #include "cereal/gen/cpp/log.capnp.h"
 
 typedef cereal::CarControl::HUDControl::AudibleAlert AudibleAlert;
@@ -18,8 +20,11 @@ static std::map<AudibleAlert, std::pair<const char *, int>> sound_map {
 
 class Sound {
 public:
-  virtual ~Sound() {}
-  virtual bool play(AudibleAlert alert) = 0;
-  virtual void stop() = 0;
-  virtual void setVolume(int volume) = 0;
+  Sound();
+  void play(AudibleAlert alert);
+  void stop();
+  float volume = 0;
+
+private:
+  std::map<AudibleAlert, QSoundEffect> sounds;
 };

selfdrive/ui/ui.hpp

@@ -25,7 +25,7 @@
 #include "common/params.h"
 #include "common/glutil.h"
 #include "common/transformations/orientation.hpp"
-#include "sound.hpp"
+#include "qt/sound.hpp"
 #include "visionipc.h"
 #include "visionipc_client.h"