Research of Compatibility Quality Objective Evaluation Method of H.264 Video Codec Based on Compatibility Matrix

To evaluate the compatibility quality of various H.264 codecs, and promote H.264 codec benign competition in the market, this paper proposes an objective evaluation method. Firstly, this method adopts video distributor, video capture card and other facilities to collect two-way videos, one of which is reference video, and the other is the video encoded and decoded respectively; Then it utilizes SSIM algorithm to find "the best similar frame" between the two videos in order to solve the problem of “Homologous Asynchronous”; Finally, it establishes codec compatibility matrix which can objectively evaluate codec compatibility quality using the proposed five indexes. Experiments show that the proposed method is simple, and can effectively evaluate codec compatibility quality. 