发明名称 |
Non-nested SEI messages in video coding |
摘要 |
A device obtains, from a bitstream that includes an encoded representation of the video data, a non-nested Supplemental Enhancement Information (SEI) message that is not nested within another SEI message in the bitstream. Furthermore, the device determines a layer of the bitstream to which the non-nested SEI message is applicable. The non-nested SEI message is applicable to layers for which video coding layer (VCL) network abstraction layer (NAL) units of the bitstream have layer identifiers equal to a layer identifier of a SEI NAL unit that encapsulates the non-nested SEI message. A temporal identifier of the SEI NAL unit is equal to a temporal identifier of an access unit containing the SEI NAL unit. Furthermore, the device processes, based in part on one or more syntax elements in the non-nested SEI message, video data of the layer of the bitstream to which the non-nested SEI message is applicable. |
申请公布号 |
US9521393(B2) |
申请公布日期 |
2016.12.13 |
申请号 |
US201314036873 |
申请日期 |
2013.09.25 |
申请人 |
QUALCOMM Incorporated |
发明人 |
Wang Ye-Kui;Chen Ying;Ramasubramonian Adarsh Krishnan |
分类号 |
H04N19/70;H04N13/00;H04N19/46;H04N19/30 |
主分类号 |
H04N19/70 |
代理机构 |
Shumaker & Sieffert, P.A. |
代理人 |
Shumaker & Sieffert, P.A. |
主权项 |
1. A method of processing video data, the method comprising:
obtaining, from a bitstream of coded video data that includes a sequence of network abstraction layer (NAL) units, a non-nested Supplemental Enhancement Information (SEI) message, wherein the non-nested SEI message is not nested within a scalable nesting SEI message in the bitstream and the non-nested SEI message is not a buffering period SEI message, a picture timing SEI message, or a decoding unit information SEI message; determining a layer of the bitstream to which the non-nested SEI message is applicable, wherein the layer to which the non-nested SEI message is applicable is a layer for which video coding layer (VCL) NAL units of the bitstream have layer identifiers equal to a layer identifier specified in a SEI NAL unit that encapsulates the non-nested SEI message, and wherein a temporal identifier specified in the SEI NAL unit is required to be equal to a temporal identifier of an access unit containing the SEI NAL unit; and processing, based in part on data in the non-nested SEI message, video data of the layer of the bitstream to which the non-nested SEI message is applicable. |
地址 |
San Diego CA US |