发明名称 |
SYNTAX AND SEMANTICS FOR BUFFERING INFORMATION TO SIMPLIFY VIDEO SPLICING |
摘要 |
Innovations in syntax and semantics of coded picture buffer removal delay (“CPBRD”) values potentially simplify splicing operations. For example, a video encoder sets a CPBRD value for a current picture that indicates an increment value relative to a nominal coded picture buffer removal time of a preceding picture in decoding order, regardless of whether the preceding picture has a buffering period SEI message. The encoder can signal the CPBRD value according to a single-value approach in which a flag indicates how to interpret the CPBRD value, according to a two-value approach in which another CPBRD value (having a different interpretation) is also signaled, or according to a two-value approach that uses a flag and a delta value. A corresponding video decoder receives and parses the CPBRD value for the current picture. A splicing tool can perform simple concatenation operations to splice bitstreams using the CPBRD value for the current picture. |
申请公布号 |
US2014192893(A1) |
申请公布日期 |
2014.07.10 |
申请号 |
US201314109670 |
申请日期 |
2013.12.17 |
申请人 |
Microsoft Corporation |
发明人 |
Sullivan Gary J.;Zhu Lihua |
分类号 |
H04N19/44;H04N19/91;H04N19/117;H04N19/503;H04N19/583 |
主分类号 |
H04N19/44 |
代理机构 |
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代理人 |
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主权项 |
1. A computing device adapted to perform a method comprising:
setting a coded picture buffer removal delay (“CPBRD”) value for a given unit of a video sequence, wherein the CPBRD value for the given unit indicates an increment value relative to a nominal coded picture buffer (“CPB”) removal time of a preceding picture in decoding order regardless of whether the preceding picture has a buffering period SEI message; and signaling the CPBRD value for the given unit. |
地址 |
Redmond WA US |