ISO IEC 23090-17:2021 pdf download – Information technology — Coded representation of immersive media — Part 17: Reference software and conformance for omnidirectional media format (OMAF).
1 Scope This document specifies the conformance and reference software for omnidirectional media format (specified in ISO/IEC 23090-2). This document describes the reference software modules and the features that is supports. It also provides a description of how the reference software can be utilized. In addition, the document lists and describes test vectors comprising ISO base media file format files, media presentation descriptions, segments and combinations thereof that conform to ISO/IEC 23090-2. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 23090-2, Information technology — Coded representation of immersive media — Part 2: Omnidirectional media format 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/IEC 23090-2 apply. ISO and IEC maintain terminology databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso .org/obp — IEC Electropedia: available at http://www.electropedia .org/
6 Conformance for ISO/IEC 23090-2 6.1 General This clause defines conformance for ISO/IEC 23090-2. There is no official reference tool provided to check the conformance of files. The reference software allows users to check the conformance (i.e. syntactic correctness and value range validation) of a given ISOBMFF container file to ISO/IEC 23090-2. At the basic level, this can be achieved using omaf_tool by providing a listing of OMAF-related metadata which can then be used to verify conformance. A set of test vectors for conformance are available at: https://standards .iso .org/iso -iec/23090/-17/ed -1/en/. 6.2 Description of conformance files This set of test vectors contains a number of files that conform to the following OMAF profiles: HEVC- based viewport-independent OMAF video profile, HEVC-based viewport-dependent OMAF video profile, and OMAF HEVC image profile. In addition, DASH MPDs and media segments for some of the test vectors in this set are also available. Table 3 describes the main features of this set of test vectors.