Patent ID: 11943440
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. One or more computer-readable memory or storage devices storing encoded data, as part of a bitstream, for a picture of a video sequence, the encoded data having been produced by a video encoder performing operations, the video encoder being implemented using memory and one or more processing units, the operations comprising:
determining a color space for a given unit of the picture, including selecting between a first color space and a second color space, the first color space being RGB and the second color space being YCoCg, wherein the color space for the given unit is determined to be the second color space;
adjusting intermediate quantization parameter (“QP”) values for color components of the second color space according to per component color space adjustment factors, the per component color space adjustment factors adjusting the intermediate QP values for the color components of the second color space by rule for Y, Co, and Cg components, respectively, the per component color space adjustment factors depending on the second color space without signaling of syntax elements that indicate the per component color space adjustment factors; and
encoding the given unit based at least in part on the adjusted intermediate QP values, the encoded data including a signal that indicates the color space for the given unit.