A method for processing video frames, comprising: obtaining, by a video processing chip, multiple video frames, wherein a frame rate of the multiple video frames is a first frame rate, a resolution of the multiple video frames is a first resolution, and the first resolution is an original resolution of each video frame; adjusting, by the video processing chip, each video frame from the first resolution to a second resolution, wherein the second resolution is a resolution agreed upon in advance by the video processing chip and a Motion Estimation/Motion Compensation, MEMC, chip, and the second resolution is higher than the first resolution; and inserting, by the video processing chip according to a second frame rate, at least one frame into the multiple video frames, so that a frame rate of a transport frame stream that consists of the multiple video frames and the at least one inserted frame is the second frame rate, setting, by the video processing chip, an invalidity marker for each frame to be inserted, wherein the invalidity marker is used to mark each inserted frame in the transport frame stream as an invalid frame, and sending the transport frame stream to the MEMC chip, wherein the second frame rate is a frame rate agreed upon in advance by the video processing chip and the MEMC chip, and a resolution of the at least one inserted frame is the second resolution, wherein the second frame rate and the second resolution correspond to a fixed interface frequency between the video processing chip and the MEMC chip, wherein the MEMC chip can obtain the multiple video frames in the transport frame stream according to the invalidity marker of each invalid frame in the transport frame stream in order to perform Motion Estimation/Motion Compensation on the multiple video frames of the first frame rate in order to generate a display frame stream of a third frame rate. obtaining, by a video processing chip, multiple video frames, wherein a frame rate of the multiple video frames is a first frame rate, a resolution of the multiple video frames is a first resolution, and the first resolution is an original resolution of each video frame; adjusting, by the video processing chip, each video frame from the first resolution to a second resolution, wherein the second resolution is a resolution agreed upon in advance by the video processing chip and a Motion Estimation/Motion Compensation, MEMC, chip, and the second resolution is higher than the first resolution; and inserting, by the video processing chip according to a second frame rate, at least one frame into the multiple video frames, so that a frame rate of a transport frame stream that consists of the multiple video frames and the at least one inserted frame is the second frame rate, setting, by the video processing chip, an invalidity marker for each frame to be inserted, wherein the invalidity marker is used to mark each inserted frame in the transport frame stream as an invalid frame, and sending the transport frame stream to the MEMC chip, wherein the second frame rate is a frame rate agreed upon in advance by the video processing chip and the MEMC chip, and a resolution of the at least one inserted frame is the second resolution, wherein the second frame rate and the second resolution correspond to a fixed interface frequency between the video processing chip and the MEMC chip, wherein the MEMC chip can obtain the multiple video frames in the transport frame stream according to the invalidity marker of each invalid frame in the transport frame stream in order to perform Motion Estimation/Motion Compensation on the multiple video frames of the first frame rate in order to generate a display frame stream of a third frame rate.