Abstract: In one embodiment, a non-decodable leading picture is identified. A picture is identified as a decodable picture when the picture follows a random access picture (RAP) in decode order and precede the same RAP in output order; and the picture is not inter-predicted from a picture that precedes the RAP in decode order. The identified decodable leading picture is coded with a respectively corresponding NAL unit type in a bitstream.

Abstract: In one embodiment, receiving at a video stream receive-and-process (VSRP) device auxiliary information corresponding to a video stream, the auxiliary information corresponding to a spatial span; receiving at the VSRP device the video stream comprising a first portion of compressed pictures having a first picture resolution format and a second portion having a second picture resolution format during transmission over a given channel, wherein the first compressed picture of the second portion of compressed pictures is the first compressed picture in the video stream after the last compressed picture of the first portion of compressed pictures; and decoding the first and second portions of the video stream, and scaling the decoded picture data from the second video stream according to the received auxiliary information and outputting the first and second decoded portions of the video stream, such that a spatial span of decoded picture data from the second video stream is same as that of the first video stream.