This Recommendation defines the use of advanced video codecs, including ITU-T Rec. H.264, in ITU-T Recs H.310, H.320, H.321, H.322, H.323 and H.324 terminals. It also defines generic extended signalling for use with all video codecs in the H.300-series terminals. This revised version adds clarifications regarding H.264 VCL HRD (Type I HRD) versus NAL HRD (Type II HRD) bit rate usage, sample aspect ratio capabilities for H.264, signalling for Reduced Complexity Decoding Operation (RCDO) for H.264 bitstreams, and a new Annex B, RCDO for H.264 Baseline Profile bitstreams. Annex A has been replaced with an inclusion by reference of the recently approved RFC 3984 (without actual change in content). New Annex B specifies a reduced-complexity decoding process to be applied to H.264 Baseline profile bitstreams when such use has been negotiated using ITU-T Rec. H.241.
Số hiệu tiêu chuẩn
ITU-T H.241
Tên tiêu chuẩn
Extended video procedures and control signals for H.300-series terminals
Ngày phát hành
2006-05-00
Từ khóa
Audiovisual equipment * Audiovisual materials * Communication networks * Communication service * Communications * Control signals * Data transfer * Multimedia * Signal transmission * Telecommunication * Telecommunications * Terminal devices * Video signals