Signaling of clock tick derivation information for video timing in video coding

A method of encoding video data, the method comprising:

• encoding pictures of a video sequence to generate a coded video sequence comprising the encoded pictures;
• and
• signaling timing parameters for the coded video sequence by at least in part signaling a time scale and a number of units in a clock tick at most once in a video parameter set (VPS) syntax structure and at most once in a video usability information (VUI) part of a sequence parameter set (SPS) syntax structure.

A device for processing video data comprising:

• means for receiving a coded video sequence comprising encoded pictures of a video sequence;
• and
• means for receiving timing parameters for the coded video sequence that include a time scale and a number of units in a clock tick at most once in a video parameter set (VPS) syntax structure referenced by the coded video sequence and at most once in a video usability information (VUI) part of a sequence parameter set (SPS) syntax structure referenced by the coded video sequence.

A non-transitory computer readable storage medium storing instructions that upon execution by one or more processors cause the one or more processors to:

• receive a coded video sequence comprising encoded pictures of a video sequence;
• and
• receive timing parameters for the coded video sequence that include a time scale and a number of units in a clock tick at most once in a video parameter set (VPS) syntax structure referenced by the coded video sequence and at most once in a video usability information (VUI) part of a sequence parameter set (SPS) syntax structure referenced by the coded video sequence.