公开(公告)号：US10264269B2

公开(公告)日：2019-04-16

申请号：US14687316

申请日：2015-04-15

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  David W. Singer ,  Krasimir D. Kolarov ,  Steven E. Saunders ,  Guy Cote ,  Sorin Cismas

IPC: H04N19/12 ,  H04N19/44 ,  H04N19/46 ,  H04N19/105 ,  H04N19/147 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172 ,  H04N19/196

Abstract: In a coding system, an encoder codes video data according to a predetermined protocol, which, when decoded causes an associated decoder to perform a predetermined sequence of decoding operations. The encoder may perform local decodes of the coded video data, both in the manner dictated by the coding protocol that is at work and also by one or more alternative decoding operations. The encoder may estimate relative performance of the alternative decoding operations as compared to a decoding operation that is mandated by the coding protocol. The encoder may provide identifiers in metadata that is associated with the coded video data to identify such levels of distortion and/or levels of resources conserved. A decoder may refer to such identifiers when determining when to engage alternative decoding operations as may be warranted under resource conservation policies.

公开(公告)号：US20160105675A1

公开(公告)日：2016-04-14

申请号：US14687316

申请日：2015-04-15

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  David W. Singer ,  Krasimir D. Kolarov ,  Steven E. Saunders ,  Guy Cote ,  Sorin Cismas

IPC: H04N19/156 ,  H04N19/172 ,  H04N19/105 ,  H04N19/154

CPC classification number: H04N19/156 ,  H04N19/105 ,  H04N19/12 ,  H04N19/147 ,  H04N19/154 ,  H04N19/172 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46

Abstract: In a coding system, an encoder codes video data according to a predetermined protocol, which, when decoded causes an associated decoder to perform a predetermined sequence of decoding operations. The encoder may perform local decodes of the coded video data, both in the manner dictated by the coding protocol that is at work and also by one or more alternative decoding operations. The encoder may estimate relative performance of the alternative decoding operations as compared to a decoding operation that is mandated by the coding protocol. The encoder may provide identifiers in metadata that is associated with the coded video data to identify such levels of distortion and/or levels of resources conserved. A decoder may refer to such identifiers when determining when to engage alternative decoding operations as may be warranted under resource conservation policies.

Abstract translation: 在编码系统中，编码器根据预定的协议对视频数据进行编码，当预定协议被解码时，相关解码器执行预定的解码操作序列。 编码器可以以由正在工作的编码协议所指定的方式以及通过一个或多个替代解码操作来执行编码视频数据的本地解码。 与由编码协议强制的解码操作相比，编码器可以估计替代解码操作的相对性能。 编码器可以提供与编码的视频数据相关联的元数据中的标识符，以识别所保存的资源的失真和/或资源级别。 当确定什么时候参与在资源节约策略下可能需要的替代解码操作时，解码器可以参考这样的标识符。