ISO/IEC 23090-26:2025

Overview

ISO/IEC 23090-26:2025 specifies the conformance suite and reference software for carriage of geometry‑based point cloud compression (G‑PCC) data as defined in ISO/IEC 23090‑18. The standard documents the architecture, modules and public API of the reference implementation (libGPCCCarriage and GPCCCarriageApp), the status of ISOBMFF encapsulation support, and a set of conformance test vectors and sample files to validate implementations and interoperability.

Key keywords: ISO/IEC 23090-26, G‑PCC, point cloud compression, ISOBMFF, reference software, conformance suite, GPCCCarriageApp, libGPCCCarriage.

Key topics

• Purpose and scope
  • Reference software to validate the written ISO/IEC 23090‑18 specification.
  • Conformance test vectors for interoperability testing across applications.
• Architecture
  • Extension of the ISOBMFF reference software; consists of a carriage library (libGPCCCarriage) and a command‑line tool (GPCCCarriageApp) for multiplexing/demultiplexing.
• Feature support list
  • Documented table of supported boxes, sample entries and features (e.g., GPCCConfigurationBox, GPCCComponentInfoBox, single and multi‑track GPCCSampleEntry, multiplexing/demultiplexing, sub‑samples), including items marked OK, In progress, or Not implemented to indicate implementation status.
• Public API
  • Functions for box creation and parsing (e.g., GPCCCreateBox, GPCCParseBox, GPCCParseUnknownBox).
  • Sample entry and configuration management routines (e.g., GPCCNewBitstreamSampleEntry, GPCCNewMultiTrackGPCCSampleEntry, GPCCSetGPCCConfigurationRecord, GPCCGetConfigurationInfoFromSampleEntry).
  • All public prototypes are provided in GPCCCarriage.h.
• Conformance and test vectors
  • Timed and non‑timed G‑PCC conformance tests, with packaged example files to demonstrate feature usage and to exercise interoperability scenarios.

Applications and users

• Codec and tool developers implementing G‑PCC carriage in media players, encoders, packagers and file format tools.
• Media service providers and streaming platform engineers validating point-cloud delivery workflows using ISOBMFF.
• Test labs and QA teams running conformance and interoperability tests against the reference implementation and provided vectors.
• Standards bodies and integrators verifying specification clarity and implementation completeness.

Related standards

• ISO/IEC 23090‑18 - Carriage of geometry‑based point cloud compression data (normative reference).
• ISOBMFF (ISO base media file format) - container and encapsulation practices used by the reference software.

Reference implementation and conformance files are available from the ISO standards portal (see the ISO/IEC 23090‑26:2025 entry).