diff --git a/media/libeffects/downmix/aidl/DownmixContext.cpp b/media/libeffects/downmix/aidl/DownmixContext.cpp
index 0e76d1d..13e0e5a 100644
--- a/media/libeffects/downmix/aidl/DownmixContext.cpp
+++ b/media/libeffects/downmix/aidl/DownmixContext.cpp
@@ -20,12 +20,60 @@
 
 #include "DownmixContext.h"
 
-using aidl::android::hardware::audio::effect::IEffect;
 using aidl::android::hardware::audio::common::getChannelCount;
+using aidl::android::hardware::audio::effect::IEffect;
 using aidl::android::media::audio::common::AudioChannelLayout;
+using aidl::android::media::audio::common::AudioConfig;
 
 namespace aidl::android::hardware::audio::effect {
 
+namespace {
+
+inline bool isChannelMaskValid(const AudioChannelLayout& channelMask) {
+    if (channelMask.getTag() != AudioChannelLayout::layoutMask) return false;
+    int chMask = channelMask.get<AudioChannelLayout::layoutMask>();
+    // check against unsupported channels (up to FCC_26)
+    constexpr uint32_t MAXIMUM_CHANNEL_MASK = AudioChannelLayout::LAYOUT_22POINT2 |
+                                              AudioChannelLayout::CHANNEL_FRONT_WIDE_LEFT |
+                                              AudioChannelLayout::CHANNEL_FRONT_WIDE_RIGHT;
+    if (chMask & ~MAXIMUM_CHANNEL_MASK) {
+        LOG(ERROR) << "Unsupported channels in " << (chMask & ~MAXIMUM_CHANNEL_MASK);
+        return false;
+    }
+    return true;
+}
+
+inline bool isStereoChannelMask(const AudioChannelLayout& channelMask) {
+    if (channelMask.getTag() != AudioChannelLayout::layoutMask) return false;
+
+    return channelMask.get<AudioChannelLayout::layoutMask>() == AudioChannelLayout::LAYOUT_STEREO;
+}
+
+}  // namespace
+
+bool DownmixContext::validateCommonConfig(const Parameter::Common& common) {
+    const AudioConfig& input = common.input;
+    const AudioConfig& output = common.output;
+    if (input.base.sampleRate != output.base.sampleRate) {
+        LOG(ERROR) << __func__ << ": SRC not supported, input: " << input.toString()
+                   << " output: " << output.toString();
+        return false;
+    }
+
+    if (!isStereoChannelMask(output.base.channelMask)) {
+        LOG(ERROR) << __func__ << ": output should be stereo, not "
+                   << output.base.channelMask.toString();
+        return false;
+    }
+
+    if (!isChannelMaskValid(input.base.channelMask)) {
+        LOG(ERROR) << __func__ << ": invalid input channel, " << input.base.channelMask.toString();
+        return false;
+    }
+
+    return true;
+}
+
 DownmixContext::DownmixContext(int statusDepth, const Parameter::Common& common)
     : EffectContext(statusDepth, common) {
     LOG(DEBUG) << __func__;
@@ -62,7 +110,7 @@
     resetBuffer();
 }
 
-IEffect::Status DownmixContext::lvmProcess(float* in, float* out, int samples) {
+IEffect::Status DownmixContext::downmixProcess(float* in, float* out, int samples) {
     LOG(DEBUG) << __func__ << " in " << in << " out " << out << " sample " << samples;
     IEffect::Status status = {EX_ILLEGAL_ARGUMENT, 0, 0};
 
@@ -122,18 +170,4 @@
     }
 }
 
-bool DownmixContext::isChannelMaskValid(AudioChannelLayout channelMask) {
-    if (channelMask.getTag() != AudioChannelLayout::layoutMask) return false;
-    int chMask = channelMask.get<AudioChannelLayout::layoutMask>();
-    // check against unsupported channels (up to FCC_26)
-    constexpr uint32_t MAXIMUM_CHANNEL_MASK = AudioChannelLayout::LAYOUT_22POINT2 |
-                                              AudioChannelLayout::CHANNEL_FRONT_WIDE_LEFT |
-                                              AudioChannelLayout::CHANNEL_FRONT_WIDE_RIGHT;
-    if (chMask & ~MAXIMUM_CHANNEL_MASK) {
-        LOG(ERROR) << "Unsupported channels in " << (chMask & ~MAXIMUM_CHANNEL_MASK);
-        return false;
-    }
-    return true;
-}
-
 }  // namespace aidl::android::hardware::audio::effect
diff --git a/media/libeffects/downmix/aidl/DownmixContext.h b/media/libeffects/downmix/aidl/DownmixContext.h
index 1571c38..a381d7f 100644
--- a/media/libeffects/downmix/aidl/DownmixContext.h
+++ b/media/libeffects/downmix/aidl/DownmixContext.h
@@ -50,7 +50,9 @@
         return RetCode::SUCCESS;
     }
 
-    IEffect::Status lvmProcess(float* in, float* out, int samples);
+    IEffect::Status downmixProcess(float* in, float* out, int samples);
+
+    static bool validateCommonConfig(const Parameter::Common& common);
 
   private:
     DownmixState mState;
@@ -60,7 +62,6 @@
 
     // Common Params
     void init_params(const Parameter::Common& common);
-    bool isChannelMaskValid(::aidl::android::media::audio::common::AudioChannelLayout channelMask);
 };
 
 }  // namespace aidl::android::hardware::audio::effect
diff --git a/media/libeffects/downmix/aidl/EffectDownmix.cpp b/media/libeffects/downmix/aidl/EffectDownmix.cpp
index 7068c5c..702a6f0 100644
--- a/media/libeffects/downmix/aidl/EffectDownmix.cpp
+++ b/media/libeffects/downmix/aidl/EffectDownmix.cpp
@@ -193,6 +193,8 @@
         return mContext;
     }
 
+    if (!DownmixContext::validateCommonConfig(common)) return nullptr;
+
     mContext = std::make_shared<DownmixContext>(1 /* statusFmqDepth */, common);
     return mContext;
 }
@@ -210,7 +212,7 @@
         LOG(ERROR) << __func__ << " nullContext";
         return {EX_NULL_POINTER, 0, 0};
     }
-    return mContext->lvmProcess(in, out, sampleToProcess);
+    return mContext->downmixProcess(in, out, sampleToProcess);
 }
 
 }  // namespace aidl::android::hardware::audio::effect