Patent ID: 8243820

Claim:
A method of decoding video using a computing device that implements a video decoder, comprising: with the computing device that implements the video decoder, parsing plural syntax elements from a sequence header for a video bit stream, where the sequence header is integral to the video bit stream, the video bit stream having a plurality of entry point segments of a video sequence, at least one of said entry point segments comprising coded content of a group of pictures separate from that of another of said entry point segments of the video sequence, and wherein the plural syntax elements parsed from the sequence header include plural coded resolution syntax elements that indicate a maximum coded width and a maximum coded height for the video sequence; with the computing device that implements that video decoder, decoding one of the entry point segments of the video sequence, wherein values of the pictures in the entry point segment have a first range, and wherein the decoding includes: for the entry point segment, determining whether to use the maximum coded width and the maximum coded height for the video sequence as coded width and coded height, respectively, for the pictures of the entry point segment, and, if not, determining the coded width and the coded height for the pictures of the entry point segment from plural coded resolution syntax elements of an entry point header for the entry point segment; and decoding the pictures of the entry point segment; with the computing device that implements that video decoder, applying one or more post-processing operations to the respective pictures of the decoded entry point segment, including performing range remapping to remap the values of the respective pictures from the first range to a second range, wherein the one or more post-processing operations further comprise a color conversion operation; and with the computing device that implements that video decoder, reconstructing at least part of the video sequence with the decoded entry point segment.