Method and apparatus for video encoding and decoding

A video decoding method, applied to a computer device, the method comprising:

• receiving encoded data corresponding to a current frame to be decoded;
• obtaining a sampling parameter corresponding to the current frame, the sampling parameter including an average of resolutions of a plurality of preceding video frames;
• determining downsampling information corresponding to the current frame according to the sampling parameter, wherein downsampling information is determined by:
• in response to determining the current frame frame includes a B-frame, selecting a first downsampling proportion for the B-frame;
• and
• in response to determining the current frame includes a P-frame, selecting a second downsampling proportion for the P-frame, the second downsampling proportion is lower than the first downsampling proportion, and the first and the second downsampling proportions are part of the downsampling information, and
• wherein the downsampling information is further determined by:
• obtaining an application type corresponding to the input video frame, and obtaining hardware processing capabilities of two communication parties in response to determining the application type is a real-time application type, the real-time application type including a real-time video call application, and the two communication parties engage in the real-time video call to each other as two call terminals;
• and
• determining a downsampling method according to the hardware processing capabilities of the two communication parties;
• and
• decoding the encoded data according to the downsampling information corresponding to the video to be decoded to obtain a decoded video frame.

A non-transitory computer-readable storage medium, storing a computer program, the computer program, when executed by a processor, causing the processor to perform:

• obtaining an input video frame;
• obtaining a sampling parameter corresponding to the input video frame, the sampling parameter including an average of resolutions of a plurality of preceding video frames;
• determining downsampling information corresponding to the input video frame according to the sampling parameter, wherein determining the downsampling information comprises:
• in response to determining the input video frame includes a B-frame, selecting a first downsampling proportion for the B-frame;
• and
• in response to determining the input video frame includes a P-frame, selecting a second downsampling proportion for the P-frame, the second downsampling proportion is lower than the first downsampling proportion, and the first and the second downsampling proportions are part of the downsampling information, and
• wherein determining the downsampling information further comprises:
• obtaining an application type corresponding to the input video frame, and obtaining hardware processing capabilities of two communication parties in response to determining the application type is a real-time application type, the real-time application type including a real-time video call application, and the two communication parties engage in the real-time video call to each other as two call terminals;
• and
• determining a corresponding sampling method according to the hardware processing capabilities of the two communication parties;
• and
• encoding the input video frame according to the downsampling information to obtain encoded data corresponding to the input video frame.