Refactor audio code out of bootanimation_main.

So it can be shared with the iot/ variant I refactored it into the
audioplay.h file. This keeps all of the audio code local, we could hide
the functions and only expose the callback but that would make testing
harder.

Test: Ran a bootanimation.zip with audio.wav on Marlin, works as expected.
Bug: 67051984
Change-Id: Ie31dc5f2cfaad5bb23134ef81be712afa6b3cd6f

1 files changed, 43 insertions, 0 deletions

diff --git a/cmds/bootanimation/BootAnimationUtil.cpp b/cmds/bootanimation/BootAnimationUtil.cpp
index 7718daf61d81..1e417e938359 100644
--- a/cmds/bootanimation/BootAnimationUtil.cpp
+++ b/cmds/bootanimation/BootAnimationUtil.cpp
@@ -16,14 +16,30 @@
 
 #include "BootAnimationUtil.h"
 
+#include <vector>
 #include <inttypes.h>
 
 #include <binder/IServiceManager.h>
 #include <cutils/properties.h>
 #include <utils/Log.h>
 #include <utils/SystemClock.h>
+#include <android-base/properties.h>
 
 namespace android {
+namespace {
+
+static constexpr char PLAY_SOUND_PROP_NAME[] = "persist.sys.bootanim.play_sound";
+static constexpr char BOOT_COMPLETED_PROP_NAME[] = "sys.boot_completed";
+static constexpr char POWER_CTL_PROP_NAME[] = "sys.powerctl";
+static constexpr char BOOTREASON_PROP_NAME[] = "ro.boot.bootreason";
+static const std::vector<std::string> PLAY_SOUND_BOOTREASON_BLACKLIST {
+  "kernel_panic",
+  "Panic",
+  "Watchdog",
+};
+
+}  // namespace
+
 
 bool bootAnimationDisabled() {
     char value[PROPERTY_VALUE_MAX];
@@ -58,4 +74,31 @@ void waitForSurfaceFlinger() {
     }
 }
 
+bool playSoundsAllowed() {
+    // Only play sounds for system boots, not runtime restarts.
+    if (android::base::GetBoolProperty(BOOT_COMPLETED_PROP_NAME, false)) {
+        return false;
+    }
+    // no audio while shutting down
+    if (!android::base::GetProperty(POWER_CTL_PROP_NAME, "").empty()) {
+        return false;
+    }
+    // Read the system property to see if we should play the sound.
+    // If it's not present, default to allowed.
+    if (!property_get_bool(PLAY_SOUND_PROP_NAME, 1)) {
+        return false;
+    }
+
+    // Don't play sounds if this is a reboot due to an error.
+    char bootreason[PROPERTY_VALUE_MAX];
+    if (property_get(BOOTREASON_PROP_NAME, bootreason, nullptr) > 0) {
+        for (const auto& str : PLAY_SOUND_BOOTREASON_BLACKLIST) {
+            if (strcasecmp(str.c_str(), bootreason) == 0) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
 }  // namespace android