Compressed Domain H.264 Baseline Encoder in Video Transcoding Architecture

摘要

With the growth of technology, there is an increase in the number of networks, types of devices and different content representation formats as a result of which interoperability between different systems and networks is gaining in importance. Video transcoding is the process of converting video from one format to another. H.264/AVC, developed by the Joint Video Team (JVT), is new standard which fulfils significant coding efficiency, simple syntax specifications and seamless integration of video coding into all current protocols and multiple architectures. The research work presented in this paper is carrying out compressed domain video encoding through integer transform in compliance with H.264 Standard in the transcoding pipeline. The core forward transform or H.264 Transform (HT) and inverse transform are analysed and adopted in this paper. The complete encoder has been demonstrated with the help of three different types of input video sequences. This paper analysed different metrics/parameters involved in encoding. This research work proposed the method of computing the complexity. It has also been proposed that the combination of Quality, File size and Complexity shall be used as one of the important metrics to evaluate the video processing.