Use DeviceIdVector for outputs in Audio Policy

Use DeviceIdVector for output in Audio Policy.

Bug: 367816690
Test: atest audiopolicy_tests
Test: adb shell /data/fuzz/arm64/audiopolicy_fuzzer/audiopolicy_fuzzer
Flag: android.media.audio.routed_device_ids
Change-Id: If2144348ff69e75fd4e6c339848d7d161ef5611d
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 483a1ef..f68b506 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -1224,7 +1224,7 @@
                                        const AttributionSourceState& attributionSource,
                                        audio_config_t* config,
                                        audio_output_flags_t flags,
-                                       audio_port_handle_t* selectedDeviceId,
+                                       DeviceIdVector* selectedDeviceIds,
                                        audio_port_handle_t* portId,
                                        std::vector<audio_io_handle_t>* secondaryOutputs,
                                        bool *isSpatialized,
@@ -1239,8 +1239,8 @@
         ALOGE("%s NULL output - shouldn't happen", __func__);
         return BAD_VALUE;
     }
-    if (selectedDeviceId == nullptr) {
-        ALOGE("%s NULL selectedDeviceId - shouldn't happen", __func__);
+    if (selectedDeviceIds == nullptr) {
+        ALOGE("%s NULL selectedDeviceIds - shouldn't happen", __func__);
         return BAD_VALUE;
     }
     if (portId == nullptr) {
@@ -1262,20 +1262,20 @@
             legacy2aidl_audio_config_t_AudioConfig(*config, false /*isInput*/));
     int32_t flagsAidl = VALUE_OR_RETURN_STATUS(
             legacy2aidl_audio_output_flags_t_int32_t_mask(flags));
-    int32_t selectedDeviceIdAidl = VALUE_OR_RETURN_STATUS(
-            legacy2aidl_audio_port_handle_t_int32_t(*selectedDeviceId));
+    auto selectedDeviceIdsAidl = VALUE_OR_RETURN_STATUS(convertContainer<std::vector<int32_t>>(
+            *selectedDeviceIds, legacy2aidl_audio_port_handle_t_int32_t));
 
     media::GetOutputForAttrResponse responseAidl;
 
     status_t status = statusTFromBinderStatus(
             aps->getOutputForAttr(attrAidl, sessionAidl, attributionSource, configAidl, flagsAidl,
-                                  selectedDeviceIdAidl, &responseAidl));
+                                  selectedDeviceIdsAidl, &responseAidl));
     if (status != NO_ERROR) {
         config->format = VALUE_OR_RETURN_STATUS(
-            aidl2legacy_AudioFormatDescription_audio_format_t(responseAidl.configBase.format));
+                aidl2legacy_AudioFormatDescription_audio_format_t(responseAidl.configBase.format));
         config->channel_mask = VALUE_OR_RETURN_STATUS(
-            aidl2legacy_AudioChannelLayout_audio_channel_mask_t(
-                    responseAidl.configBase.channelMask, false /*isInput*/));
+                aidl2legacy_AudioChannelLayout_audio_channel_mask_t(
+                        responseAidl.configBase.channelMask, false /*isInput*/));
         config->sample_rate = responseAidl.configBase.sampleRate;
         return status;
     }
@@ -1287,8 +1287,8 @@
         *stream = VALUE_OR_RETURN_STATUS(
                 aidl2legacy_AudioStreamType_audio_stream_type_t(responseAidl.stream));
     }
-    *selectedDeviceId = VALUE_OR_RETURN_STATUS(
-            aidl2legacy_int32_t_audio_port_handle_t(responseAidl.selectedDeviceId));
+    *selectedDeviceIds = VALUE_OR_RETURN_STATUS(convertContainer<DeviceIdVector>(
+            responseAidl.selectedDeviceIds, aidl2legacy_int32_t_audio_port_handle_t));
     *portId = VALUE_OR_RETURN_STATUS(aidl2legacy_int32_t_audio_port_handle_t(responseAidl.portId));
     *secondaryOutputs = VALUE_OR_RETURN_STATUS(convertContainer<std::vector<audio_io_handle_t>>(
             responseAidl.secondaryOutputs, aidl2legacy_int32_t_audio_io_handle_t));
diff --git a/media/libaudioclient/aidl/android/media/GetOutputForAttrResponse.aidl b/media/libaudioclient/aidl/android/media/GetOutputForAttrResponse.aidl
index d3975c0..5d066bb 100644
--- a/media/libaudioclient/aidl/android/media/GetOutputForAttrResponse.aidl
+++ b/media/libaudioclient/aidl/android/media/GetOutputForAttrResponse.aidl
@@ -26,8 +26,8 @@
     /** Interpreted as audio_io_handle_t. */
     int output;
     AudioStreamType stream;
-    /** Interpreted as audio_port_handle_t. */
-    int selectedDeviceId;
+    /** Interpreted as audio_port_handle_t[]. */
+    int[] selectedDeviceIds;
     /** Interpreted as audio_port_handle_t. */
     int portId;
     /** Interpreted as audio_io_handle_t[]. */
diff --git a/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl b/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
index 956acce..7f4a7dd 100644
--- a/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
@@ -94,7 +94,7 @@
                                               in AttributionSourceState attributionSource,
                                               in AudioConfig config,
                                               int /* Bitmask, indexed by AudioOutputFlags */ flags,
-                                              int /* audio_port_handle_t */ selectedDeviceId);
+                                              in int[] /* audio_port_handle_t */ selectedDeviceIds);
 
     void startOutput(int /* audio_port_handle_t */ portId);
 
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index 5565281..fbc7629 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -342,7 +342,7 @@
                                      const AttributionSourceState& attributionSource,
                                      audio_config_t *config,
                                      audio_output_flags_t flags,
-                                     audio_port_handle_t *selectedDeviceId,
+                                     DeviceIdVector *selectedDeviceIds,
                                      audio_port_handle_t *portId,
                                      std::vector<audio_io_handle_t> *secondaryOutputs,
                                      bool *isSpatialized,
diff --git a/media/libaudiofoundation/AudioContainers.cpp b/media/libaudiofoundation/AudioContainers.cpp
index 6727562..d0f77e8 100644
--- a/media/libaudiofoundation/AudioContainers.cpp
+++ b/media/libaudiofoundation/AudioContainers.cpp
@@ -130,7 +130,7 @@
     return ss.str();
 }
 
-std::string toString(const DeviceIdSet& deviceIds) {
+std::string toString(const DeviceIdVector& deviceIds) {
     if (deviceIds.empty()) {
         return "Empty device ids";
     }
@@ -144,11 +144,11 @@
     return ss.str();
 }
 
-audio_port_handle_t getFirstDeviceId(const DeviceIdSet& deviceIds) {
+audio_port_handle_t getFirstDeviceId(const DeviceIdVector& deviceIds) {
     if (deviceIds.empty()) {
         return AUDIO_PORT_HANDLE_NONE;
     }
-    return *(deviceIds.begin());
+    return deviceIds[0];
 }
 
 AudioProfileAttributesMultimap createAudioProfilesAttrMap(audio_profile profiles[],
diff --git a/media/libaudiofoundation/include/media/AudioContainers.h b/media/libaudiofoundation/include/media/AudioContainers.h
index 3673871..8d4665e 100644
--- a/media/libaudiofoundation/include/media/AudioContainers.h
+++ b/media/libaudiofoundation/include/media/AudioContainers.h
@@ -33,8 +33,8 @@
 using FormatSet = std::set<audio_format_t>;
 using SampleRateSet = std::set<uint32_t>;
 using MixerBehaviorSet = std::set<audio_mixer_behavior_t>;
-using DeviceIdSet = std::set<audio_port_handle_t>;
 
+using DeviceIdVector = std::vector<audio_port_handle_t>;
 using FormatVector = std::vector<audio_format_t>;
 using AudioProfileAttributesMultimap =
         std::multimap<audio_format_t, std::pair<SampleRateSet, ChannelMaskSet>>;
@@ -142,12 +142,12 @@
 /**
  * Returns human readable string for a set of device ids.
  */
-std::string toString(const DeviceIdSet& deviceIds);
+std::string toString(const DeviceIdVector& deviceIds);
 
 /**
  * Returns the first device id of a set of device ids or AUDIO_PORT_HANDLE_NONE when its empty.
  */
-audio_port_handle_t getFirstDeviceId(const DeviceIdSet& deviceIds);
+audio_port_handle_t getFirstDeviceId(const DeviceIdVector& deviceIds);
 
 /**
  * Create audio profile attributes map by given audio profile array from the range of [first, last).