Remove getDevicesForStream

Obsolete - use getDevicesForAttributes instead.

Test: Boots, audio runs
Test: atest audiopolicy_tests
Test: atest AudioHostTest
Test: atest AudioServiceHostTest
Test: atest AudioManagerTest
Bug: 184944421
Merged-In: Ia2380f8b028f6a39a265d84bccc5e34aeef41f29
Change-Id: Ia2380f8b028f6a39a265d84bccc5e34aeef41f29
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index dd729c4..a7b10b2 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -1253,22 +1253,6 @@
     return result.value_or(PRODUCT_STRATEGY_NONE);
 }
 
-DeviceTypeSet AudioSystem::getDevicesForStream(audio_stream_type_t stream) {
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return DeviceTypeSet{};
-
-    auto result = [&]() -> ConversionResult<DeviceTypeSet> {
-        AudioStreamType streamAidl = VALUE_OR_RETURN(
-                legacy2aidl_audio_stream_type_t_AudioStreamType(stream));
-        std::vector<AudioDeviceDescription> resultAidl;
-        RETURN_IF_ERROR(statusTFromBinderStatus(
-                aps->getDevicesForStream(streamAidl, &resultAidl)));
-        return convertContainer<DeviceTypeSet>(resultAidl,
-                aidl2legacy_AudioDeviceDescription_audio_devices_t);
-    }();
-    return result.value_or(DeviceTypeSet{});
-}
-
 status_t AudioSystem::getDevicesForAttributes(const AudioAttributes& aa,
                                               AudioDeviceTypeAddrVector* devices,
                                               bool forVolume) {
diff --git a/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl b/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
index 748a10b..e2ef772 100644
--- a/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
@@ -137,8 +137,6 @@
 
     int /* product_strategy_t */ getStrategyForStream(AudioStreamType stream);
 
-    AudioDeviceDescription[] getDevicesForStream(AudioStreamType stream);
-
     AudioDevice[] getDevicesForAttributes(in AudioAttributesEx attr, boolean forVolume);
 
     int /* audio_io_handle_t */ getOutputForEffect(in EffectDescriptor desc);
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index f1fcd3f..e89ce15 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -328,7 +328,6 @@
     static status_t getMinVolumeIndexForAttributes(const audio_attributes_t &attr, int &index);
 
     static product_strategy_t getStrategyForStream(audio_stream_type_t stream);
-    static DeviceTypeSet getDevicesForStream(audio_stream_type_t stream);
     static status_t getDevicesForAttributes(const AudioAttributes &aa,
                                             AudioDeviceTypeAddrVector *devices,
                                             bool forVolume);
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 0ccc963..09f947c 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -210,9 +210,6 @@
     // return the strategy corresponding to a given stream type
     virtual product_strategy_t getStrategyForStream(audio_stream_type_t stream) = 0;
 
-    // return the enabled output devices for the given stream type
-    virtual DeviceTypeSet getDevicesForStream(audio_stream_type_t stream) = 0;
-
     // retrieves the list of enabled output devices for the given audio attributes
     virtual status_t getDevicesForAttributes(const audio_attributes_t &attr,
                                              AudioDeviceTypeAddrVector *devices,
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index f981b26..c3c9753 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -6430,46 +6430,6 @@
     return (stream1 == stream2);
 }
 
-DeviceTypeSet AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) {
-    // By checking the range of stream before calling getStrategy, we avoid
-    // getOutputDevicesForStream's behavior for invalid streams.
-    // engine's getOutputDevicesForStream would fallback on its default behavior (most probably
-    // device for music stream), but we want to return the empty set.
-    if (stream < AUDIO_STREAM_MIN || stream >= AUDIO_STREAM_PUBLIC_CNT) {
-        return DeviceTypeSet{};
-    }
-    DeviceVector activeDevices;
-    DeviceVector devices;
-    for (int i = AUDIO_STREAM_MIN; i < AUDIO_STREAM_PUBLIC_CNT; ++i) {
-        const audio_stream_type_t curStream{static_cast<audio_stream_type_t>(i)};
-        if (!streamsMatchForvolume(stream, curStream)) {
-            continue;
-        }
-        DeviceVector curDevices = mEngine->getOutputDevicesForStream(curStream, false/*fromCache*/);
-        devices.merge(curDevices);
-        for (audio_io_handle_t output : getOutputsForDevices(curDevices, mOutputs)) {
-            sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output);
-            if (outputDesc->isActive(toVolumeSource(curStream, false))) {
-                activeDevices.merge(outputDesc->devices());
-            }
-        }
-    }
-
-    // Favor devices selected on active streams if any to report correct device in case of
-    // explicit device selection
-    if (!activeDevices.isEmpty()) {
-        devices = activeDevices;
-    }
-    /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it
-      and doesn't really need to.*/
-    DeviceVector speakerSafeDevices = devices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER_SAFE);
-    if (!speakerSafeDevices.isEmpty()) {
-        devices.merge(mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER));
-        devices.remove(speakerSafeDevices);
-    }
-    return devices.types();
-}
-
 // TODO - consider MSD routes b/214971780
 status_t AudioPolicyManager::getDevicesForAttributes(
         const audio_attributes_t &attr, AudioDeviceTypeAddrVector *devices, bool forVolume) {
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index ac8b625..4d307cf 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -190,9 +190,6 @@
             return mEngine->getProductStrategyForAttributes(attributes);
         }
 
-        // return the enabled output devices for the given stream type
-        virtual DeviceTypeSet getDevicesForStream(audio_stream_type_t stream);
-
         /**
          * Returns a vector of devices associated with attributes.
          *
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index 82d28ca..460eddb 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -1159,30 +1159,6 @@
     return Status::ok();
 }
 
-//audio policy: use audio_device_t appropriately
-
-Status AudioPolicyService::getDevicesForStream(
-        AudioStreamType streamAidl,
-        std::vector<AudioDeviceDescription>* _aidl_return) {
-    audio_stream_type_t stream = VALUE_OR_RETURN_BINDER_STATUS(
-            aidl2legacy_AudioStreamType_audio_stream_type_t(streamAidl));
-
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        *_aidl_return = std::vector<AudioDeviceDescription>{};
-        return Status::ok();
-    }
-    if (mAudioPolicyManager == NULL) {
-        return binderStatusFromStatusT(NO_INIT);
-    }
-    Mutex::Autolock _l(mLock);
-    AutoCallerClear acc;
-    *_aidl_return = VALUE_OR_RETURN_BINDER_STATUS(
-            convertContainer<std::vector<AudioDeviceDescription>>(
-                    mAudioPolicyManager->getDevicesForStream(stream),
-                    legacy2aidl_audio_devices_t_AudioDeviceDescription));
-    return Status::ok();
-}
-
 Status AudioPolicyService::getDevicesForAttributes(const media::AudioAttributesEx& attrAidl,
                                                    bool forVolume,
                                                    std::vector<AudioDevice>* _aidl_return)
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 38b58d5..644d4be 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -1092,7 +1092,6 @@
         case TRANSACTION_isStreamActive:
         case TRANSACTION_isStreamActiveRemotely:
         case TRANSACTION_isSourceActive:
-        case TRANSACTION_getDevicesForStream:
         case TRANSACTION_registerPolicyMixes:
         case TRANSACTION_setMasterMono:
         case TRANSACTION_getSurroundFormats:
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index f482886..c6fd465 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -134,9 +134,6 @@
                                                   int32_t* _aidl_return) override;
     binder::Status getStrategyForStream(AudioStreamType stream,
                                         int32_t* _aidl_return) override;
-    binder::Status getDevicesForStream(
-            AudioStreamType stream,
-            std::vector<AudioDeviceDescription>* _aidl_return) override;
     binder::Status getDevicesForAttributes(const media::AudioAttributesEx& attr,
                                            bool forVolume,
                                            std::vector<AudioDevice>* _aidl_return) override;