Keyframe / B Frame
A key frame (or B frame) is a duration set within a encoder that marks the beginning or end of a transition. Set in seconds, a key frame is a complete image encoded and stored within the data stream. In video compression, only changes that occur from one frame to the next are stored in the data stream. This is done to greatly reduce the amount of information to be stored. Standard Configuration -- keyframe interval to 3-10 seconds. Low Latency Configuration -- keyframe interval to 1 second.