Systems and methods for signaling of video parameters and information associated with caption services
AssigneeSharp Kabushiki Kaisha
InventorsSachin G. Deshpande, Kiran Mukesh Misra
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Abstract
A method for signaling video parameters associated a video asset included in a multimedia presentation, the method comprising: signaling a flag indicating whether picture rate information is present in a descriptor associated with the video asset; and signaling picture rate information for one or more layers of encoded video data corresponding to the video asset based on the flag, wherein picture rate information includes a code value indicating a picture rate value.
Claims3
A method for signaling picture rate information, the method including:
- signaling a first present syntax element indicating whether elements in the picture rate information are present;
- signaling a second present syntax element indicating whether profile, tier, and level information is present for temporal sub-layers in an asset;
- signaling the picture rate information defined for a value equal to a maximum number of temporal sub-layers minus one, if a value of the first present syntax element is equal to one and a value of the second present syntax element is equal to one;
- and
- signaling the picture rate information defined for a value equal to zero, if a value of the first present syntax element is equal to one and a value of the second present syntax element is equal to zero,
- wherein the picture rate information includes a picture rate code indicating information about a picture rate for an i-th temporal sub-layer of a video asset, for a value of i in a range of 0 to a maximum number of temporal sub-layers minus one.
A device for receiving picture rate information, the device comprising one or more processors configured to:
- receive a first present syntax element indicating whether elements in the picture rate information are present;
- receive a second present syntax element indicating whether profile, tier, and level information is present for temporal sub-layers in an asset;
- receive the picture rate information defined for a value equal to a maximum number of temporal sub-layers minus one, if a value of the first present syntax element is equal to one and a value of the second present syntax element is equal to one, and
- receive the picture rate information defined for a value equal to zero, if a value of the first present syntax element is equal to one and a value of the second present syntax element is equal to zero,
- wherein the picture rate information includes a picture rate code indicating information about a picture rate for an i-th temporal sub-layer of a video asset, for a value of i in a range of 0 to a maximum number of temporal sub-layers minus one.
A method for receiving picture rate information, the method including:
- receiving a first present syntax element indicating whether elements in the picture rate information is present;
- receiving a second present syntax element indicating whether profile, tier, and level information is present for temporal sub-layers in an asset;
- receiving the picture rate information defined for a value equal to a maximum number of temporal sub-layers minus one, if a value of the first present syntax element is equal to one and a value of the second present syntax element is equal to one;
- and
- receiving the picture rate information defined for a value equal to zero, if a value of the first present syntax element is equal to one and a value of the second present syntax element is equal to zero,
- wherein the picture rate information includes a picture rate code indicating information about a picture rate for an i-th temporal sub-layer of a video asset, for a value of i in a range of 0 to a maximum number of temporal sub-layers minus one.
Dependencies are inferred from the claim text.