H.264 (V15): Advanced video coding for generic audiovisual services
This 15th edition of Rec. ITU-T H.264, approved in 2024-04, specifies additional SEI messages for the neural-network post-filter characteristics, neural-network post-filter activation, and phase indication (through referencing to Rec. ITU-T H.274 | ISO/IEC 23002‑7), additional colour type identifiers, and miscellaneous minor corrections and clarifications.