Analysis of Video Compression Algorithms on Different Video Files

The digital video application has become increasingly popular in mobile terminals such as cellular phones and personal digital assistance. However, due to its inherent data intensity of video sequences, storing and transmitting raw video data become impractical. With the limited storage and bandwidth capacity, this data must be compressed to a transportable size and finally decompressed to reach the destination. For this purpose, we studied and implemented two well known video compression and decompression algorithms i.e. Run Length Encoding (RLE) and Arithmetic Coding (AC). The main advantage of these compression techniques is that it almost compresses and decompresses all types of video files. In this work, we computed the compression rate on different video files by applying both algorithms. Experimentally, we find that AC algorithm compressed better in almost all types of video files except DAT type video file, and we also find that the compression rate of DAT file is highest and RLE performed better in it.