Packaging and unpackaging method and apparatus for point cloud media file, and storage medium

An electronic device, comprising:

• a processor and a memory, the memory being configured to store a computer program, and the processor being configured to invoke and run the computer program stored in the memory, to execute a packaging method for a point cloud media file, and the method comprising:
• acquiring target point cloud;
• encoding the target point cloud to obtain an alternative group of the target point cloud, the alternative group comprising N interchangeable media tracks, and N being an integer greater than 1;
• adding quality indication information into at least one media track among the N media tracks to obtain a media file of the target point cloud, the quality indication information indicating quality of the media track;
• and
• packing the media file with first information, the first information indicating quality information of at least one media track among the N media tracks.