--- a/dom/media/platforms/wmf/WMFMediaDataDecoder.cpp
+++ b/dom/media/platforms/wmf/WMFMediaDataDecoder.cpp
@@ -144,19 +144,17 @@ WMFMediaDataDecoder::ProcessOutput()
   RefPtr<MediaData> output;
   HRESULT hr = S_OK;
   while (SUCCEEDED(hr = mMFTManager->Output(mLastStreamOffset, output)) &&
          output) {
     mHasSuccessfulOutput = true;
     mCallback->Output(output);
   }
   if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
-    if (mTaskQueue->IsEmpty()) {
-      mCallback->InputExhausted();
-    }
+    mCallback->InputExhausted();
   } else if (FAILED(hr)) {
     NS_WARNING("WMFMediaDataDecoder failed to output data");
     mCallback->Error(MediaDataDecoderError::DECODE_ERROR);
     if (!mRecordedError) {
       SendTelemetry(hr);
       mRecordedError = true;
     }
   }