ffmepg 导入, 视频解码初始化逻辑, 视频解码线程逻辑

include/thread_queue.h

@@ -9,7 +9,8 @@ public:
 	~ThreadQueue() = default;
 
 	void push(const T& value) {
-		std::lock_guard<std::mutex> lock(mutex_);
+		std::unique_lock<std::mutex> lock(mutex_);
+		condition_.wait(lock, [this](){ return queue_.size() <= maxSize; });
 		queue_.push(value);
 		condition_.notify_one();
 	}
@@ -19,6 +20,7 @@ public:
 		condition_.wait(lock, [this] { return !queue_.empty(); });
 		T value = queue_.front();
 		queue_.pop();
+		condition_.notify_one();
 		return value;
 	}
 
@@ -35,4 +37,5 @@ private:
 	std::queue<T> queue_;
 	mutable std::mutex mutex_;
 	std::condition_variable condition_;
+    unsigned int maxSize = 50;
 };