Prevent frame que object from being reinitialized which could be unsafe if another thread and/or object is using it.

Author: cudawarped

modules/cudacodec/src/frame_queue.cpp

@@ -55,14 +55,10 @@ cv::cudacodec::detail::FrameQueue::~FrameQueue() {
         delete[] isFrameInUse_;
 }
 
-void cv::cudacodec::detail::FrameQueue::init(const int _maxSz, const bool force) {
+void cv::cudacodec::detail::FrameQueue::init(const int _maxSz) {
     AutoLock autoLock(mtx_);
-    if (isFrameInUse_) {
-        if (force)
-            delete[] isFrameInUse_;
-        else
-            return;
-    }
+    if (isFrameInUse_)
+        return;
     maxSz = _maxSz;
     displayQueue_ = std::vector<CUVIDPARSERDISPINFO>(maxSz, CUVIDPARSERDISPINFO());
     isFrameInUse_ = new volatile int[maxSz];

modules/cudacodec/src/frame_queue.hpp

@@ -63,7 +63,7 @@ class FrameQueue
 {
 public:
     ~FrameQueue();
-    void init(const int _maxSz, const bool force = false);
+    void init(const int _maxSz);
 
     void endDecode() { endOfDecode_ = true; }
     bool isEndOfDecode() const { return endOfDecode_ != 0;}