one or more processors; and

a computer-readable storage medium coupled to the one or more processors and storing instructions, which when executed by the one or more processors, cause the video coding device to perform operations, the operations comprising:

obtaining a to-be-encoded video;

encoding the to-be-encoded video to obtain a first bitstream and a second bitstream, wherein the first bitstream is obtained by performing frame skipping and encoding on the to-be-encoded video, wherein a first frame sequence comprises video frames obtained by downsampling video frames in the to-be-encoded video that are encoded into the first bitstream, and a second frame sequence comprises video frames obtained by downsampling video frames in the to-be-encoded video that are not encoded into the first bitstream, and wherein the second bitstream is obtained by encoding video frames in the second frame sequence by using video frames in the first frame sequence as key frames; and

outputting the first bitstream and the second bitstream.