Only read queue when required

[cedricve]

Description

Pull Request Title: Only Read Queue When Required

Motivation and Improvement

The primary motivation behind this pull request is to optimize the handling of live stream data by only reading from the queue when it is necessary. This change addresses unnecessary queue reads and improves the performance and efficiency of the live stream processing. The specific improvements are as follows:

1. Performance Optimization: By avoiding unnecessary reads from the queue when there are no active live stream requests, we reduce the computational overhead and improve the overall performance of the system.

2. Resource Utilization: This change ensures that resources are utilized more efficiently by only processing data when there is an active request, which can lead to reduced CPU and memory usage.

3. Code Cleanliness: The changes also include resetting the image object after processing, which helps in managing memory more effectively and prevents potential memory leaks.

Summary of Changes

• Modified the HandleLiveStreamSD function to check the time since the last live stream request before reading from the queue.
• Moved the call to livestreamCursor.ReadPacket() and subsequent packet validation inside the condition that checks for active live stream requests.
• Added code to reset the image object after processing, ensuring memory is managed properly.
• Included the import of the image package to facilitate the image reset functionality.

By implementing these changes, we ensure that the system is more responsive and efficient, leading to better performance and resource management.