what's the difference between avkit and corevideo?

The primary difference between AVKit and CoreVideo lies in their purposes and functionalities within the Apple ecosystem:

1. AVKit:

   • Purpose: AVKit is a high-level framework designed to simplify the playback of audio and video content. It provides a user interface and integrates with other system features to offer a seamless media playback experience.
   • Key Features:
     • AVPlayerViewController: A view controller that manages the playback of video content, offering features like Multiview for simultaneous viewing of multiple video streams (Explore multiview video playback in visionOS).
     • Integration: Works with AVFoundation and RealityKit to handle 2D and 3D content, including spatial audio and video (Explore multiview video playback in visionOS).
     • Customization: Allows developers to create custom video experiences and supports features like HTTP live streaming (Build compelling spatial photo and video experiences).

2. CoreVideo:

   • Purpose: CoreVideo is a lower-level framework that provides a pipeline model for managing and manipulating video frames. It is more focused on the efficient handling of video data and synchronization.
   • Key Features:
     • Buffer Management: Manages video buffers and provides services for manipulating video frames.
     • Synchronization: Works closely with other frameworks like CoreMedia and CoreAnimation to ensure smooth video playback and processing.

In summary, AVKit is geared towards providing a high-level, user-friendly interface for media playback, integrating seamlessly with other Apple frameworks to enhance the viewing experience. CoreVideo, on the other hand, is more focused on the low-level management and processing of video data, providing the necessary tools for efficient video frame handling and synchronization.