A frame skipping transcoding method based on optimum frame allocation in sliding window

Frame skipping function in video transcoding emerges as a significant research area for the telecommunication and multimedia applications. In this paper, a novel frame skipping transcoding scheme is proposed, which meets the needs of fixed frame rate, good encoding quality, and small frame rate fluctuation. Based on the proposed sliding window architecture, the transcoder can achieve an even distribution of the encoding frames. Following the motion intensity analyses of the decoded frames, the skipping impact of each frame allocation possibility within the sliding window is calculated, and the optimum allocation for encoding quality is then concluded. Extensive experiments prove that the proposed frame skipping transcoding method outperforms traditional methods in terms of both encoding quality and frame rate fluctuation.