Video enhancement method and apparatus, server, and terminal device

A video enhancement method, comprising:

• obtaining a recorded video source file;
• performing a transcoding operation and a stream segmentation operation on the video source file;
• encapsulating a segmented video file to obtain an encapsulated video file, wherein the encapsulated video file comprises a primary index file;
• and constructing a perceptual quantizer PQ parameter file corresponding to the segmented video file, wherein the PQ parameter file comprises information about a terminal device;
• adding a tag and an address of the PQ parameter file to the primary index file;
• and
• sending the encapsulated video file and the PQ parameter file to a video distribution source station.

A terminal device, comprising:

• one or more processors, a memory, a plurality of application programs, and one or more computer programs, wherein the one or more computer programs is/are stored in the memory, the one or more computer programs comprises/comprise instructions, and when the instructions are executed by the terminal device, the terminal device is enabled to perform operations, the operations comprising:
• obtaining a video playback request, wherein the video playback request carries information about a to-be-played video;
• downloading a to-be-played video file from a video distribution source station based on the information about the to-be-played video;
• interpreting a primary index file of the video file to obtain a secondary index address and a perceptual quantizer PQ parameter file address of the to-be-played video;
• downloading a PQ parameter file from the video distribution source station based on the PQ parameter file address, and downloading bitstream data of the to-be-played video from the video distribution source station based on the secondary index address;
• obtaining, based on the PQ parameter file, a PQ parameter corresponding to a terminal device;
• and
• performing a video enhancement operation based on the PQ parameter and the bitstream data to obtain enhanced bitstream data.