Avoid re-making the DCT table if it is already correct when initialis…

…ing (#241)
flucoma · Aug 17, 2023 · f6ec9be · f6ec9be
1 parent 6576486
commit f6ec9be
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/include/algorithms/public/DCT.hpp b/include/algorithms/public/DCT.hpp
@@ -41,6 +41,11 @@ class DCT
     assert(inputSize <= mTable.cols());
     assert(outputSize <= mTable.rows());
 
+    // Do not reinitialise if there is no need
+
+    if (mInitialized && mInputSize == inputSize && mOutputSize == outputSize)
+      return;
+
     mInputSize = inputSize;
     mOutputSize = outputSize;
     mTable.setZero();