Merge "Spatializer: Added benchmark for Spatializer"
diff --git a/media/TEST_MAPPING b/media/TEST_MAPPING
index 3e79897..2793e76 100644
--- a/media/TEST_MAPPING
+++ b/media/TEST_MAPPING
@@ -15,7 +15,8 @@
                 {
                     "include-filter": "com.google.android.media.gts.WidevineH264PlaybackTests"
                 }
-            ]
+            ],
+            "file_patterns": ["(?i)drm|crypto"]
         }
     ],
 
diff --git a/media/codec2/vndk/C2Fence.cpp b/media/codec2/vndk/C2Fence.cpp
index de18df89..c1fb956 100644
--- a/media/codec2/vndk/C2Fence.cpp
+++ b/media/codec2/vndk/C2Fence.cpp
@@ -186,7 +186,7 @@
 class _C2FenceFactory::SyncFenceImpl : public C2Fence::Impl {
 public:
     virtual c2_status_t wait(c2_nsecs_t timeoutNs) {
-        c2_nsecs_t timeoutMs = timeoutNs / 1000;
+        int64_t timeoutMs = timeoutNs / 1000000;
         if (timeoutMs > INT_MAX) {
             timeoutMs = INT_MAX;
         }
diff --git a/media/libeffects/downmix/Android.bp b/media/libeffects/downmix/Android.bp
index b26d028..abe622d 100644
--- a/media/libeffects/downmix/Android.bp
+++ b/media/libeffects/downmix/Android.bp
@@ -24,6 +24,10 @@
     vendor: true,
     srcs: ["EffectDownmix.cpp"],
 
+    export_include_dirs: [
+        ".",
+    ],
+
     shared_libs: [
         "libaudioutils",
         "libcutils",
diff --git a/media/libeffects/downmix/tests/Android.bp b/media/libeffects/downmix/tests/Android.bp
index 4940117..392a6fa 100644
--- a/media/libeffects/downmix/tests/Android.bp
+++ b/media/libeffects/downmix/tests/Android.bp
@@ -18,9 +18,6 @@
     gtest: true,
     host_supported: true,
     vendor: true,
-    include_dirs: [
-        "frameworks/av/media/libeffects/downmix",
-    ],
     header_libs: [
         "libaudioeffects",
     ],
@@ -51,9 +48,6 @@
     name:"downmixtest",
     host_supported: false,
     proprietary: true,
-    include_dirs: [
-        "frameworks/av/media/libeffects/downmix",
-    ],
 
     header_libs: [
         "libaudioeffects",
diff --git a/media/libeffects/lvm/benchmarks/Android.bp b/media/libeffects/lvm/benchmarks/Android.bp
index 8a25b85..c21c5f2 100644
--- a/media/libeffects/lvm/benchmarks/Android.bp
+++ b/media/libeffects/lvm/benchmarks/Android.bp
@@ -29,9 +29,6 @@
     name: "reverb_benchmark",
     vendor: true,
     host_supported: true,
-    include_dirs: [
-        "frameworks/av/media/libeffects/lvm/wrapper/Reverb",
-    ],
     srcs: ["reverb_benchmark.cpp"],
     static_libs: [
         "libreverb",
diff --git a/media/libeffects/lvm/tests/Android.bp b/media/libeffects/lvm/tests/Android.bp
index 9939ed1..0568fbd 100644
--- a/media/libeffects/lvm/tests/Android.bp
+++ b/media/libeffects/lvm/tests/Android.bp
@@ -11,52 +11,33 @@
 
 cc_test {
     name: "EffectReverbTest",
-    vendor: true,
-    gtest: true,
-    host_supported: true,
+    defaults: [
+      "libeffects-test-defaults",
+    ],
     srcs: [
         "EffectReverbTest.cpp",
-        "EffectTestHelper.cpp",
-    ],
-    include_dirs: [
-        "frameworks/av/media/libeffects/lvm/lib/Common/lib",
-        "frameworks/av/media/libeffects/lvm/wrapper/Reverb",
     ],
     static_libs: [
-        "libaudioutils",
         "libreverb",
         "libreverbwrapper",
     ],
-    shared_libs: [
-        "liblog",
-    ],
     header_libs: [
         "libaudioeffects",
-        "libhardware_headers",
     ],
 }
 
 cc_test {
     name: "EffectBundleTest",
-    vendor: true,
-    gtest: true,
-    host_supported: true,
-    test_suites: ["device-tests"],
+    defaults: [
+      "libeffects-test-defaults",
+    ],
     srcs: [
         "EffectBundleTest.cpp",
-        "EffectTestHelper.cpp",
     ],
     static_libs: [
-        "libaudioutils",
         "libbundlewrapper",
         "libmusicbundle",
     ],
-    shared_libs: [
-        "liblog",
-    ],
-    header_libs: [
-        "libhardware_headers",
-    ],
 }
 
 cc_test {
@@ -108,10 +89,6 @@
     proprietary: true,
     gtest: false,
 
-    include_dirs: [
-        "frameworks/av/media/libeffects/lvm/wrapper/Reverb",
-    ],
-
     header_libs: [
         "libaudioeffects",
     ],
diff --git a/media/libeffects/lvm/wrapper/Android.bp b/media/libeffects/lvm/wrapper/Android.bp
index e169e3c..1287514 100644
--- a/media/libeffects/lvm/wrapper/Android.bp
+++ b/media/libeffects/lvm/wrapper/Android.bp
@@ -89,6 +89,8 @@
 
     local_include_dirs: ["Reverb"],
 
+    export_include_dirs: ["Reverb"],
+
     header_libs: [
         "libhardware_headers",
         "libaudioeffects",
diff --git a/media/libeffects/spatializer/tests/Android.bp b/media/libeffects/spatializer/tests/Android.bp
new file mode 100644
index 0000000..704e873
--- /dev/null
+++ b/media/libeffects/spatializer/tests/Android.bp
@@ -0,0 +1,21 @@
+// Build the unit tests for spatializer effect
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_av_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_av_license"],
+}
+
+cc_test {
+    name: "SpatializerTest",
+    defaults: [
+      "libeffects-test-defaults",
+    ],
+    host_supported: false,
+    srcs: [
+        "SpatializerTest.cpp",
+    ],
+}
diff --git a/media/libeffects/spatializer/tests/SpatializerTest.cpp b/media/libeffects/spatializer/tests/SpatializerTest.cpp
new file mode 100644
index 0000000..110fbb1
--- /dev/null
+++ b/media/libeffects/spatializer/tests/SpatializerTest.cpp
@@ -0,0 +1,300 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SpatializerTest"
+
+#include <system/audio_effects/effect_spatializer.h>
+#include "EffectTestHelper.h"
+
+using namespace android;
+
+// relying on dlsym to fill the interface context
+audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM = [] {
+    audio_effect_library_t symbol{};
+    void* effectLib = dlopen("libspatialaudio.so", RTLD_NOW);
+    if (effectLib) {
+        audio_effect_library_t* effectInterface =
+                (audio_effect_library_t*)dlsym(effectLib, AUDIO_EFFECT_LIBRARY_INFO_SYM_AS_STR);
+        if (effectInterface == nullptr) {
+            ALOGE("dlsym failed: %s", dlerror());
+            exit(-1);
+        }
+        symbol = (audio_effect_library_t)(*effectInterface);
+    } else {
+        ALOGE("dlopen failed: %s", dlerror());
+        exit(-1);
+    }
+    return symbol;
+}();
+
+// channel masks
+constexpr audio_channel_mask_t kSpatializerChMasks[] = {
+        AUDIO_CHANNEL_OUT_5POINT1,
+};
+constexpr size_t kNumSpatializerChMasks = std::size(kSpatializerChMasks);
+
+// sampleRates
+// TODO(b/234170025): Add all sampling rates once they are handled by spatializer
+constexpr int kSpatializerSampleRates[] = {44100, 48000, 96000};
+constexpr size_t kNumSpatializerSampleRates = std::size(kSpatializerSampleRates);
+
+// frame counts
+// TODO(b/234620538): Add sizes smaller than 80 once they are handled by spatializer
+constexpr size_t kSpatializerFrameCounts[] = {4800, 1920, 480, 80};
+constexpr size_t kNumSpatializerFrameCounts = std::size(kSpatializerFrameCounts);
+
+// effect uuids
+constexpr effect_uuid_t kSpatializerEffectUuids[] = {
+        {0xcc4677de, 0xff72, 0x11eb, 0x9a03, {0x02, 0x42, 0xac, 0x13, 0x00, 0x03}},
+};
+const size_t kNumSpatializerEffectUuids = std::size(kSpatializerEffectUuids);
+
+constexpr float kMinAmplitude = -1.0f;
+constexpr float kMaxAmplitude = 1.0f;
+constexpr float kSNRThreshold = 100.0f;
+constexpr size_t kNumBufferSplits = 2;
+
+using SingleEffectTestParam = std::tuple<int, int, int, int, int>;
+
+class SingleEffectTest : public ::testing::TestWithParam<SingleEffectTestParam> {
+  public:
+    SingleEffectTest()
+        : mInputChMask(kSpatializerChMasks[std::get<0>(GetParam())]),
+          mInputChannelCount(audio_channel_count_from_out_mask(mInputChMask)),
+          mOutputChMask(AUDIO_CHANNEL_OUT_STEREO),
+          mOutputChannelCount(audio_channel_count_from_out_mask(mOutputChMask)),
+          mSampleRate(kSpatializerSampleRates[std::get<1>(GetParam())]),
+          mFrameCount(kSpatializerFrameCounts[std::get<2>(GetParam())]),
+          mLoopCount(EffectTestHelper::kLoopCounts[std::get<3>(GetParam())]),
+          mTotalFrameCount(mFrameCount * mLoopCount),
+          mUuid(&kSpatializerEffectUuids[std::get<4>(GetParam())]) {}
+    void SetUp() override {
+        ASSERT_EQ(AUDIO_EFFECT_LIBRARY_TAG, AUDIO_EFFECT_LIBRARY_INFO_SYM.tag)
+                << "Invalid effect tag";
+    }
+    const size_t mInputChMask;
+    const size_t mInputChannelCount;
+    const size_t mOutputChMask;
+    const size_t mOutputChannelCount;
+    const size_t mSampleRate;
+    const size_t mFrameCount;
+    const size_t mLoopCount;
+    const size_t mTotalFrameCount;
+    const effect_uuid_t* mUuid;
+};
+
+// Test basic spatializer functionality (does not crash) for various combinations of sampling
+// rates, channel masks and frame counts.
+TEST_P(SingleEffectTest, SimpleProcess) {
+    SCOPED_TRACE(testing::Message()
+                 << "chMask: " << mInputChMask << " sampleRate: " << mSampleRate);
+
+    EffectTestHelper effect(mUuid, mInputChMask, mOutputChMask, mSampleRate, mFrameCount,
+                            mLoopCount);
+    ASSERT_NO_FATAL_FAILURE(effect.createEffect());
+    ASSERT_NO_FATAL_FAILURE(effect.setConfig());
+
+    // Initialize input buffer with deterministic pseudo-random values
+    std::vector<float> input(mTotalFrameCount * mInputChannelCount);
+    std::vector<float> output(mTotalFrameCount * mOutputChannelCount);
+    std::minstd_rand gen(mInputChMask);
+    std::uniform_real_distribution<> dis(kMinAmplitude, kMaxAmplitude);
+    for (auto& in : input) {
+        in = dis(gen);
+    }
+    ASSERT_NO_FATAL_FAILURE(effect.process(input.data(), output.data()));
+    ASSERT_NO_FATAL_FAILURE(effect.releaseEffect());
+}
+
+INSTANTIATE_TEST_SUITE_P(SpatializerTest, SingleEffectTest,
+                         ::testing::Combine(::testing::Range(0, (int)kNumSpatializerChMasks),
+                                            ::testing::Range(0, (int)kNumSpatializerSampleRates),
+                                            ::testing::Range(0, (int)kNumSpatializerFrameCounts),
+                                            ::testing::Range(0,
+                                                             (int)EffectTestHelper::kNumLoopCounts),
+                                            ::testing::Range(0, (int)kNumSpatializerEffectUuids)));
+
+using SingleEffectComparisonTestParam = std::tuple<int, int, int>;
+
+class SingleEffectComparisonTest
+    : public ::testing::TestWithParam<SingleEffectComparisonTestParam> {
+  public:
+    SingleEffectComparisonTest()
+        : mInputChMask(kSpatializerChMasks[std::get<0>(GetParam())]),
+          mInputChannelCount(audio_channel_count_from_out_mask(mInputChMask)),
+          mOutputChMask(AUDIO_CHANNEL_OUT_STEREO),
+          mOutputChannelCount(audio_channel_count_from_out_mask(mOutputChMask)),
+          mSampleRate(kSpatializerSampleRates[std::get<1>(GetParam())]),
+          mUuid(&kSpatializerEffectUuids[std::get<2>(GetParam())]) {}
+
+    const size_t mInputChMask;
+    const size_t mInputChannelCount;
+    const size_t mOutputChMask;
+    const size_t mOutputChannelCount;
+    const size_t mSampleRate;
+    const effect_uuid_t* mUuid;
+};
+
+// Ensure that effect produces similar output when an input is fed in a single call
+// or called multiples times with buffer split into smaller parts
+
+// TODO(b/234619903): This is currently disabled as output from the spatializer has
+// an algorithm delay that varies with frame count and hence makes it tricky to
+// compare output from two cases with different frame counts.
+// Feed valid input to spatializer and dump the output to verify spatializer is being
+// correctly initialized and once that is verified, enable the following
+TEST_P(SingleEffectComparisonTest, DISABLED_SimpleProcess) {
+    SCOPED_TRACE(testing::Message()
+                 << "chMask: " << mInputChMask << " sampleRate: " << mSampleRate);
+    int testDurationMs = 20; // 20 ms
+    int testFrameCount = (mSampleRate * testDurationMs) / 1000;
+    int totalFrameCount = testFrameCount * kNumBufferSplits;
+    size_t totalInSamples = totalFrameCount * mInputChannelCount;
+    size_t totalOutSamples = totalFrameCount * mOutputChannelCount;
+    std::vector<float> input(totalInSamples);
+    std::vector<float> outRef(totalOutSamples);
+    std::vector<float> outTest(totalOutSamples);
+
+    // Initialize input buffer with deterministic pseudo-random values
+    std::minstd_rand gen(mInputChMask);
+    std::uniform_real_distribution<> dis(kMinAmplitude, kMaxAmplitude);
+    for (auto& in : input) {
+        in = dis(gen);
+    }
+
+    EffectTestHelper refEffect(mUuid, mInputChMask, mOutputChMask, mSampleRate, totalFrameCount, 1);
+    ASSERT_NO_FATAL_FAILURE(refEffect.createEffect());
+    ASSERT_NO_FATAL_FAILURE(refEffect.setConfig());
+    ASSERT_NO_FATAL_FAILURE(refEffect.process(input.data(), outRef.data()));
+    ASSERT_NO_FATAL_FAILURE(refEffect.releaseEffect());
+
+    EffectTestHelper testEffect(mUuid, mInputChMask, mOutputChMask, mSampleRate,
+                                totalFrameCount / kNumBufferSplits, kNumBufferSplits);
+    ASSERT_NO_FATAL_FAILURE(testEffect.createEffect());
+    ASSERT_NO_FATAL_FAILURE(testEffect.setConfig());
+    ASSERT_NO_FATAL_FAILURE(testEffect.process(input.data(), outTest.data()));
+    ASSERT_NO_FATAL_FAILURE(testEffect.releaseEffect());
+
+    float snr = computeSnr(outTest.data(), outRef.data(), totalOutSamples);
+    ASSERT_GT(snr, kSNRThreshold) << "SNR between reference and test output " << snr
+                                  << " is lower than required " << kSNRThreshold;
+}
+
+INSTANTIATE_TEST_SUITE_P(SpatializerTest, SingleEffectComparisonTest,
+                         ::testing::Combine(::testing::Range(0, (int)kNumSpatializerChMasks),
+                                            ::testing::Range(0, (int)kNumSpatializerSampleRates),
+                                            ::testing::Range(0, (int)kNumSpatializerEffectUuids)));
+
+// This test checks if get/set Spatializer effect params are in accordance with documentation. The
+// test doesn't validate the functionality of the params configured. It only checks the return
+// status of API calls.
+TEST(ParameterTests, CheckParameterSupport) {
+    EffectTestHelper effect(&kSpatializerEffectUuids[0], kSpatializerChMasks[0],
+                            AUDIO_CHANNEL_OUT_STEREO, kSpatializerSampleRates[0],
+                            kSpatializerFrameCounts[0], EffectTestHelper::kLoopCounts[0]);
+    ASSERT_NO_FATAL_FAILURE(effect.createEffect());
+
+    // capture list of channel masks supported
+    std::vector<audio_channel_mask_t> channelMasks;
+    int status = effect.getParam<true>(SPATIALIZER_PARAM_SUPPORTED_CHANNEL_MASKS, channelMasks);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, channelMasks.size());
+        EXPECT_EQ(AUDIO_CHANNEL_OUT_5POINT1, channelMasks[0]);
+    }
+
+    // capture list of spatialization levels supported
+    std::vector<int8_t> spatializationLevels;
+    status = effect.getParam<true>(SPATIALIZER_PARAM_SUPPORTED_LEVELS, spatializationLevels);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, spatializationLevels.size());
+        EXPECT_EQ(SPATIALIZATION_LEVEL_MULTICHANNEL, spatializationLevels[0]);
+    }
+
+    // capture list of spatialization modes supported
+    std::vector<int8_t> spatializationModes;
+    status = effect.getParam<true>(SPATIALIZER_PARAM_SUPPORTED_SPATIALIZATION_MODES,
+                                   spatializationModes);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, spatializationModes.size());
+        EXPECT_EQ(SPATIALIZATION_MODE_BINAURAL, spatializationModes[0]);
+    }
+
+    // check if head tracking is supported
+    std::vector<int8_t> headTracking;
+    status = effect.getParam<false>(SPATIALIZER_PARAM_HEADTRACKING_SUPPORTED, headTracking);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, headTracking.size());
+        EXPECT_EQ(true, headTracking[0]);
+    }
+
+    // verify spatialization level setting
+    std::vector<int8_t> level;
+    status = effect.getParam<false>(SPATIALIZER_PARAM_LEVEL, level);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, level.size());
+        EXPECT_EQ(SPATIALIZATION_LEVEL_NONE, level[0]);
+    }
+
+    ASSERT_NO_FATAL_FAILURE(effect.setConfig());
+
+    status = effect.getParam<false>(SPATIALIZER_PARAM_LEVEL, level);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, level.size());
+        EXPECT_EQ(SPATIALIZATION_LEVEL_MULTICHANNEL, level[0]);
+    }
+
+    // try setting unsupported parameters
+    level.clear();
+    level.push_back(SPATIALIZATION_LEVEL_MCHAN_BED_PLUS_OBJECTS);
+    ASSERT_EQ(1, level.size());
+    EXPECT_NE(0, effect.setParam(SPATIALIZER_PARAM_LEVEL, level));
+
+    // Ensure that unsupported level isn't set by above setParam
+    status = effect.getParam<false>(SPATIALIZER_PARAM_LEVEL, level);
+    EXPECT_EQ(status, 0) << "get Param returned an error " << status;
+    if (!status) {
+        EXPECT_EQ(1, level.size());
+        EXPECT_EQ(SPATIALIZATION_LEVEL_MULTICHANNEL, level[0]);
+    }
+
+    std::vector<float> hingeAngle = {3.1415f};
+    ASSERT_EQ(1, hingeAngle.size());
+    EXPECT_NE(0, effect.setParam(SPATIALIZER_PARAM_HINGE_ANGLE, hingeAngle));
+
+    std::vector<int8_t> headTrackingMode = {2};  // RELATIVE_WORLD
+    ASSERT_EQ(1, headTrackingMode.size());
+    EXPECT_NE(0, effect.setParam(SPATIALIZER_PARAM_HEADTRACKING_MODE, headTrackingMode));
+
+    // try setting supported parameters
+    std::vector<float> vectorFloat = {0.1, 0.2, 0.15, 0.04, 2.23, 3.14};
+    ASSERT_EQ(6, vectorFloat.size());
+    EXPECT_EQ(0, effect.setParam(SPATIALIZER_PARAM_HEAD_TO_STAGE, vectorFloat));
+
+    ASSERT_NO_FATAL_FAILURE(effect.releaseEffect());
+}
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGD("Test result = %d\n", status);
+    return status;
+}
diff --git a/media/libeffects/tests/common/Android.bp b/media/libeffects/tests/common/Android.bp
new file mode 100644
index 0000000..73179fb
--- /dev/null
+++ b/media/libeffects/tests/common/Android.bp
@@ -0,0 +1,45 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_av_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_av_license"],
+}
+
+filegroup {
+    name: "libeffects-test-helper-srcs",
+    srcs: [
+        "EffectTestHelper.cpp",
+    ],
+}
+
+cc_library_headers {
+    name: "libeffects-test-helper-headers",
+    vendor: true,
+    host_supported: true,
+    export_include_dirs: [
+        ".",
+    ],
+}
+
+cc_defaults {
+    name: "libeffects-test-defaults",
+    vendor: true,
+    gtest: true,
+    host_supported: true,
+    test_suites: ["device-tests"],
+    static_libs: [
+        "libaudioutils",
+    ],
+    srcs: [
+        ":libeffects-test-helper-srcs",
+    ],
+    header_libs: [
+        "libeffects-test-helper-headers",
+        "libhardware_headers",
+    ],
+    shared_libs: [
+        "liblog",
+    ],
+}
diff --git a/media/libeffects/lvm/tests/EffectTestHelper.cpp b/media/libeffects/tests/common/EffectTestHelper.cpp
similarity index 97%
rename from media/libeffects/lvm/tests/EffectTestHelper.cpp
rename to media/libeffects/tests/common/EffectTestHelper.cpp
index ec727c7..db085ba 100644
--- a/media/libeffects/lvm/tests/EffectTestHelper.cpp
+++ b/media/libeffects/tests/common/EffectTestHelper.cpp
@@ -15,7 +15,6 @@
  */
 
 #include "EffectTestHelper.h"
-extern audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM;
 
 namespace android {
 
diff --git a/media/libeffects/lvm/tests/EffectTestHelper.h b/media/libeffects/tests/common/EffectTestHelper.h
similarity index 69%
rename from media/libeffects/lvm/tests/EffectTestHelper.h
rename to media/libeffects/tests/common/EffectTestHelper.h
index bcee84e..c99e27a 100644
--- a/media/libeffects/lvm/tests/EffectTestHelper.h
+++ b/media/libeffects/tests/common/EffectTestHelper.h
@@ -21,6 +21,7 @@
 #include <audio_utils/primitives.h>
 #include <climits>
 #include <cstdlib>
+#include <dlfcn.h>
 #include <gtest/gtest.h>
 #include <hardware/audio_effect.h>
 #include <log/log.h>
@@ -29,7 +30,9 @@
 #include <system/audio.h>
 #include <vector>
 
+extern audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM;
 namespace android {
+
 template <typename T>
 static float computeSnr(const T* ref, const T* tst, size_t count) {
     double signal{};
@@ -82,6 +85,7 @@
     void createEffect();
     void releaseEffect();
     void setConfig();
+
     template <typename VALUE_DTYPE>
     void setParam(uint32_t type, VALUE_DTYPE const value) {
         int reply = 0;
@@ -101,6 +105,76 @@
         ASSERT_EQ(status, 0) << "set_param returned an error " << status;
         ASSERT_EQ(reply, 0) << "set_param reply non zero " << reply;
     };
+
+    template <bool MULTI_VALUES, typename T>
+    int32_t getParam(uint32_t type, std::vector<T>& values) {
+        const int kMaxEffectParamValues = 10;
+        uint32_t cmd[sizeof(effect_param_t) / sizeof(uint32_t) + 1];
+        uint32_t reply[sizeof(effect_param_t) / sizeof(uint32_t) + 1 + 1 + kMaxEffectParamValues];
+
+        effect_param_t* p = (effect_param_t*)cmd;
+        p->psize = sizeof(uint32_t);
+        if (MULTI_VALUES) {
+            p->vsize = (kMaxEffectParamValues + 1) * sizeof(T);
+        } else {
+            p->vsize = sizeof(T);
+        }
+        *(uint32_t*)p->data = type;
+        uint32_t replySize = sizeof(effect_param_t) + p->psize + p->vsize;
+
+        int32_t status = (*mEffectHandle)
+                                 ->command(mEffectHandle, EFFECT_CMD_GET_PARAM,
+                                           sizeof(effect_param_t) + sizeof(uint32_t), cmd,
+                                           &replySize, reply);
+        if (status) {
+            return status;
+        }
+        if (p->status) {
+            return p->status;
+        }
+        if (replySize <
+            sizeof(effect_param_t) + sizeof(uint32_t) + (MULTI_VALUES ? 2 : 1) * sizeof(T)) {
+            return -EINVAL;
+        }
+
+        T* params = (T*)((uint8_t*)reply + sizeof(effect_param_t) + sizeof(uint32_t));
+        int numParams = 1;
+        if (MULTI_VALUES) {
+            numParams = (int)*params++;
+        }
+        if (numParams > kMaxEffectParamValues) {
+            return -EINVAL;
+        }
+        values.clear();
+        std::copy(&params[0], &params[numParams], back_inserter(values));
+        return 0;
+    }
+
+    template <typename T>
+    int setParam(uint32_t type, const std::vector<T>& values) {
+        int reply = 0;
+        uint32_t replySize = sizeof(reply);
+
+        uint32_t cmd[sizeof(effect_param_t) / sizeof(uint32_t) + 1 + values.size()];
+        effect_param_t* p = (effect_param_t*)cmd;
+        p->psize = sizeof(uint32_t);
+        p->vsize = sizeof(T) * values.size();
+        *(uint32_t*)p->data = type;
+        memcpy((uint32_t*)p->data + 1, values.data(), sizeof(T) * values.size());
+
+        int status = (*mEffectHandle)
+                             ->command(mEffectHandle, EFFECT_CMD_SET_PARAM,
+                                       sizeof(effect_param_t) + p->psize + p->vsize, p, &replySize,
+                                       &reply);
+        if (status) {
+            return status;
+        }
+        if (reply) {
+            return reply;
+        }
+        return 0;
+    }
+
     void process(float* input, float* output);
 
     // Corresponds to SNR for 1 bit difference between two int16_t signals