Recommendation ITU-T H.264 | International Standard ISO/IEC 14496-10 represents an evolution of the existing video coding standards (ITU-T H.261, ITU-T H.262, and ITU-T H.263) and it was developed in response to the growing need for higher compression of moving pictures for various applications such as videoconferencing, digital storage media, television broadcasting, Internet streaming, and communication. It is also designed to enable the use of the coded video representation in a flexible manner for a wide variety of network environments. The use of this Recommendation | International Standard allows motion video to be manipulated as a form of computer data and to be stored on various storage media, transmitted and received over existing and future networks and distributed on existing and future broadcasting channels.
The 15th edition of Rec. ITU-T H.264, approved in 2024-08, specifies additional SEI messages for neural-network post-filter characteristics, neural-network post-filter activation, and phase indication (through referencing to Rec. ITU-T H.274 | ISO/IEC 230027), additional colour type identifiers, and miscellaneous minor corrections and clarifications. Users of previous editions are forewarned that, since previous placeholder Annex F was removed in this edition, all subsequent Annexes, clauses, tables, figures and equations were renumbered.
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