diff --git a/media/codec2/sfplugin/CCodec.cpp b/media/codec2/sfplugin/CCodec.cpp
index 39263f9..6f51e4d 100644
--- a/media/codec2/sfplugin/CCodec.cpp
+++ b/media/codec2/sfplugin/CCodec.cpp
@@ -1323,6 +1323,8 @@
         mCallback->onError(err2, ACTION_CODE_FATAL);
         return;
     }
+    // We're not starting after flush.
+    (void)mSentConfigAfterResume.test_and_set();
     err2 = mChannel->start(inputFormat, outputFormat, buffersBoundToCodec);
     if (err2 != OK) {
         mCallback->onError(err2, ACTION_CODE_FATAL);
@@ -1555,18 +1557,27 @@
 }
 
 void CCodec::signalResume() {
-    auto setResuming = [this] {
+    std::shared_ptr<Codec2Client::Component> comp;
+    auto setResuming = [this, &comp] {
         Mutexed<State>::Locked state(mState);
         if (state->get() != FLUSHED) {
             return UNKNOWN_ERROR;
         }
         state->set(RESUMING);
+        comp = state->comp;
         return OK;
     };
     if (tryAndReportOnError(setResuming) != OK) {
         return;
     }
 
+    mSentConfigAfterResume.clear();
+    {
+        Mutexed<std::unique_ptr<Config>>::Locked configLocked(mConfig);
+        const std::unique_ptr<Config> &config = *configLocked;
+        config->queryConfiguration(comp);
+    }
+
     (void)mChannel->start(nullptr, nullptr, [&]{
         Mutexed<std::unique_ptr<Config>>::Locked configLocked(mConfig);
         const std::unique_ptr<Config> &config = *configLocked;
@@ -1770,7 +1781,7 @@
             // handle configuration changes in work done
             Mutexed<std::unique_ptr<Config>>::Locked configLocked(mConfig);
             const std::unique_ptr<Config> &config = *configLocked;
-            bool changed = false;
+            bool changed = !mSentConfigAfterResume.test_and_set();
             Config::Watcher<C2StreamInitDataInfo::output> initData =
                 config->watch<C2StreamInitDataInfo::output>();
             if (!work->worklets.empty()
@@ -1802,7 +1813,9 @@
                     ++stream;
                 }
 
-                changed = config->updateConfiguration(updates, config->mOutputDomain);
+                if (config->updateConfiguration(updates, config->mOutputDomain)) {
+                    changed = true;
+                }
 
                 // copy standard infos to graphic buffers if not already present (otherwise, we
                 // may overwrite the actual intermediate value with a final value)
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.cpp b/media/codec2/sfplugin/CCodecBufferChannel.cpp
index 035dca8..b869bd9 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.cpp
+++ b/media/codec2/sfplugin/CCodecBufferChannel.cpp
@@ -1457,6 +1457,24 @@
         std::unique_ptr<C2Work> work,
         const sp<AMessage> &outputFormat,
         const C2StreamInitDataInfo::output *initData) {
+    if (outputFormat != nullptr) {
+        Mutexed<Output>::Locked output(mOutput);
+        ALOGD("[%s] onWorkDone: output format changed to %s",
+                mName, outputFormat->debugString().c_str());
+        output->buffers->setFormat(outputFormat);
+
+        AString mediaType;
+        if (outputFormat->findString(KEY_MIME, &mediaType)
+                && mediaType == MIMETYPE_AUDIO_RAW) {
+            int32_t channelCount;
+            int32_t sampleRate;
+            if (outputFormat->findInt32(KEY_CHANNEL_COUNT, &channelCount)
+                    && outputFormat->findInt32(KEY_SAMPLE_RATE, &sampleRate)) {
+                output->buffers->updateSkipCutBuffer(sampleRate, channelCount);
+            }
+        }
+    }
+
     if ((work->input.ordinal.frameIndex - mFirstValidFrameIndex.load()).peek() < 0) {
         // Discard frames from previous generation.
         ALOGD("[%s] Discard frames from previous generation.", mName);
@@ -1634,24 +1652,6 @@
         }
     }
 
-    if (outputFormat != nullptr) {
-        Mutexed<Output>::Locked output(mOutput);
-        ALOGD("[%s] onWorkDone: output format changed to %s",
-                mName, outputFormat->debugString().c_str());
-        output->buffers->setFormat(outputFormat);
-
-        AString mediaType;
-        if (outputFormat->findString(KEY_MIME, &mediaType)
-                && mediaType == MIMETYPE_AUDIO_RAW) {
-            int32_t channelCount;
-            int32_t sampleRate;
-            if (outputFormat->findInt32(KEY_CHANNEL_COUNT, &channelCount)
-                    && outputFormat->findInt32(KEY_SAMPLE_RATE, &sampleRate)) {
-                output->buffers->updateSkipCutBuffer(sampleRate, channelCount);
-            }
-        }
-    }
-
     int32_t flags = 0;
     if (worklet->output.flags & C2FrameData::FLAG_END_OF_STREAM) {
         flags |= MediaCodec::BUFFER_FLAG_EOS;
diff --git a/media/codec2/sfplugin/include/media/stagefright/CCodec.h b/media/codec2/sfplugin/include/media/stagefright/CCodec.h
index 6ff2c4a..4797426 100644
--- a/media/codec2/sfplugin/include/media/stagefright/CCodec.h
+++ b/media/codec2/sfplugin/include/media/stagefright/CCodec.h
@@ -17,6 +17,7 @@
 #ifndef C_CODEC_H_
 #define C_CODEC_H_
 
+#include <atomic>
 #include <chrono>
 #include <list>
 #include <memory>
@@ -192,6 +193,7 @@
     typedef CCodecConfig Config;
     Mutexed<std::unique_ptr<CCodecConfig>> mConfig;
     Mutexed<std::list<std::unique_ptr<C2Work>>> mWorkDoneQueue;
+    std::atomic_flag mSentConfigAfterResume;
 
     friend class CCodecCallbackImpl;