NASA-STD-2821

Abstract

<strong>Purpose</strong> <br>This standard establishes requirements and responsibilities related to NASA audio and video resources for Internet Protocol delivery. It contains requirements for audio and video codecs, bitrates and accessibility. <br><strong>Applicability</strong> <br>Compliance with this standard is mandatory for all newly published NASA audio and video resources for Internet Protocol delivery, both internal and external. The individual NASA Centers are responsible for implementation and enforcement. <br>This NASA standard is applicable to all audio and video content created for use on NASA controlled websites. <br>Any decision to waive or vary from the requirements in this NASA-STD requires the concurrence of the NASA Web Video Working Group, Configuration Control Board. <br>Within this NASA standard, the word "shall" indicates a mandatory requirement, the word "should" indicates that a statement is strongly recommended for implementation but not required, and the word "may" indicates an optional implementation. <br>General Guidance <br>This document establishes at minimum, the necessary parameters for internet audio and video delivery and is intended to be the foundation for content delivered through current industry practices. Further consideration shall be given to include appropriate metadata as appropriate for the specific media type, or at minimum, compliant with the Dublin Core Metadata Element Set. Due to the constant evolution of internet technologies these requirements are subject to change. These requirements shall apply to all NASA audio and video produced for the internet. All NASA Centers and facilities are responsible for keeping up to date with applicable Federal accessibility requirements.