commit b7f8edcf5a19a9e69e9e6411061bb5e37f32a6e8
author Robert Wu <robertwu@google.com> Mon Nov 04 19:54:38 2024 +0000
committer Robert Wu <robertwu@google.com> Fri Nov 15 21:58:15 2024 +0000
tree 7b475019ec779f1a0ceae6c2f9d1797f557300d0
parent 55a32238ed5f3cad684217e510ab8390725f98f1

Use routed devices throughout the audio framework

After you open an audio stream, you can call getRoutedDevice() to
get which output device is actually used.

However, if you play an ALARM with a headset attached, audio comes
out of both the speaker and the headset. This is not properly reflected
with our current APIs.

Throughout the audio framework, we should use DeviceIdVector instead
of a single device when getRoutedDevice(s) are called.

This change touches many files because onAudioDeviceUpdate() has many
callers.

BYPASS_LARGE_CHANGE_WARNING

Bug: 367816690
Test: atest AAudioTests
Test: atest audiorecord_tests
Test: atest audiosystem_tests
Test: atest audiotrack_tests
Test: adb shell /data/fuzz/arm64/libaaudio_fuzzer/libaaudio_fuzzer
Test: adb shell /data/fuzz/arm64/mediaplayer_fuzzer/mediaplayer_fuzzer
Test: adb shell /data/fuzz/arm64/mediarecorder_fuzzer/mediarecorder_fuzzer
Test: OboeTester Test Output with Alarm and USB
Flag: EXEMPT refactor
Change-Id: I5e32ac5d1c24229e60112ef00d82af41d8eff6e7

services/audioflinger/Threads.cpp

diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index e42b39e..200175b 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -10921,7 +10921,7 @@
 
     // For mmap streams, once the routing has changed, they will be disconnected. It should be
     // okay to notify the client earlier before the new patch creation.
-    if (mDeviceIds != deviceIds) {
+    if (!areDeviceIdsEqual(deviceIds, mDeviceIds)) {
         if (const sp<MmapStreamCallback> callback = mCallback.promote()) {
             // The aaudioservice handle the routing changed event asynchronously. In that case,
             // it is safe to hold the lock here.
@@ -10945,7 +10945,7 @@
         *handle = AUDIO_PATCH_HANDLE_NONE;
     }
 
-    if (numDevices == 0 || mDeviceIds != deviceIds) {
+    if (numDevices == 0 || (!areDeviceIdsEqual(deviceIds, mDeviceIds))) {
         if (isOutput()) {
             sendIoConfigEvent_l(AUDIO_OUTPUT_CONFIG_CHANGED);
             mOutDeviceTypeAddrs = sinkDeviceTypeAddrs;
@@ -11110,8 +11110,7 @@
             if (const sp<MmapStreamCallback> callback = mCallback.promote()) {
                 // The aaudioservice handle the routing changed event asynchronously. In that case,
                 // it is safe to hold the lock here.
-                DeviceIdVector emptyDeviceIdVector;
-                callback->onRoutingChanged(emptyDeviceIdVector);
+                callback->onRoutingChanged({});
             } else if (mNoCallbackWarningCount < kMaxNoCallbackWarnings) {
                 ALOGW("Could not notify MMAP stream tear down: no onRoutingChanged callback!");
                 mNoCallbackWarningCount++;