Video Compression — To reduce the bandwidth
requirements, video applications transmit
compressed video. This encoding is commonly
referred as source coding or simply video compression,
and is performed by the codec in an
application. The higher the compression ratio,
the more computational power required but the
lower the bandwidth requirement. Current video
coding standards, H.264 and VP8 both claim to
provide efficient compression and low bit rates.
In the study conducted by the authors in [4],
H.264 shows lower bandwidth usage and better
video quality than VP8. High-efficiency video
coding (sometimes referred to as H.265) is on its
way to standardization and gives up to 40–50
percent improvement in bit rates.