Self-contained codecs considered harmful A stream of compressed video is composed of many successive top-level units of video. These units are, most of the time, considered atomic by encapsulators and muxers. In some codecs, like VP9, these top-level units represent … Continue reading
Three sources of latency What is latency? Latency is the time elapsed between two events, which in a perfect world, would be simultaneous. In a live video streaming scenario, the latency is typically the time elapsed between the capture of … Continue reading
The perils of start codes In many video codecs, each top-level unit of video is prefixed with a predefined sequence of bytes, known as a “start code”. This start code acts as a robust delimiter between top-level units. This sequence … Continue reading
