Fix double stops

modules/ANSCV/ANSRTSP.cpp

@@ -128,8 +128,11 @@ namespace ANSCENTER {
         // close() destroys the NVDEC decoder ONLY.  Pool slot buffers
         // (regular cudaMallocPitch allocations) are untouched — they
         // belong to the global GpuNV12SlotPool, not the decoder.
+        // reset() runs ~CRtspPlayer which calls close() exactly once —
+        // do NOT call close() explicitly here (the destructor would call
+        // it again, which re-enters torn-down decoder state).
         if (clientToClose) {
-            clientToClose->close();
+            clientToClose.reset();
 
             // Force CUDA runtime to release all cached memory from the destroyed
             // NVDEC decoder.  Without this, cuMemFree returns memory to the CUDA