Overview
ISO/IEC 13818-1:2022/Amd 1:2023 is an important amendment to the internationally recognized standard ISO/IEC 13818-1, also known as ITU-T H.222.0. This standard provides the framework for the generic coding of moving pictures and associated audio information, focusing specifically on systems for multiplexing and transport.
This 2023 amendment introduces several enhancements, most notably the support for Low Complexity Enhancement Video Coding (LCEVC) as specified in ISO/IEC 23094-2. It also adds improvements related to metadata signaling and clarifies the carriage of JPEG XS streams. The amendment ensures backward compatibility with existing codecs, maintaining interoperability across diverse multimedia systems.
Key Topics
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LCEVC Integration
ISO/IEC 13818-1:2022/Amd 1 defines how LCEVC streams are carried over MPEG-2 transport streams. LCEVC offers a low-complexity enhancement layer for video compression, enabling improved video quality and bitrate efficiency in broadcasting and streaming applications.
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Descriptor Signaling Enhancements
The amendment introduces new descriptors to signal the kind of media service and its usage, improving identification and management of multimedia services within transport streams.
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Compatibility and Clarifications
The document clarifies the handling of JPEG XS video streams and extends delay constraints to include streams compliant with ISO/IEC 23094-2 alongside existing codecs like H.264, H.265, and EVC. This ensures smooth transport and synchronization in complex multimedia workflows.
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Updated Technical Details
Updates include new definitions for LCEVC access units and video sequences in system contexts, updated packet timing requirements for presentation time stamps (PTS), and specification of packetized elementary stream (PES) handling tailored to LCEVC's presentation order.
Applications
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Broadcasting
Enhances MPEG-2 based transport streams in digital broadcasting environments by enabling the carriage of advanced codecs like LCEVC alongside legacy video and audio streams.
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Streaming Services
Supports efficient streaming of multimedia content over networks by incorporating low complexity video enhancements, reducing bandwidth requirements while improving visual quality.
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Digital Video Recorders and Set-Top Boxes
Ensures seamless decoding and synchronization of diverse video and audio streams, including new LCEVC-based formats, for reliable user experience.
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Professional Media Production
Facilitates interoperability and metadata management in workflows involving multiple codec standards and complex media services.
Related Standards
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ISO/IEC 23094-2:2021 (LCEVC)
Defines the low complexity enhancement video coding technology integrated by this amendment for enhanced video compression.
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ISO/IEC 13818-2
Specifies the video coding layer typically used in MPEG-2 systems, which works in conjunction with Part 1 for system-level multiplexing.
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IETF RFC 4647 and RFC 5646
Language tag standards referenced for media service signaling enhancements.
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ANSI/SCTE 35 (2019)
Describes digital program insertion cueing messages relevant to signaling improvements.
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JPEG XS Standards
Clarifications on the carriage of JPEG XS streams within MPEG transport ensure support for low-latency image compression formats.
Practical Benefits
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Improved Codec Support
Enables deployment of next-generation video coding enhancements while maintaining compatibility with existing MPEG-2 systems.
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Enhanced Metadata Signaling
More precise media service descriptors aid in service management, discovery, and targeting in broadcast and OTT platforms.
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Reduced Latency and Efficient Buffering
Updated constraints on buffering delays optimize real-time applications such as live streaming and interactive media.
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Robust Standards Compliance
Aligns with ongoing international collaboration through ISO, IEC, and ITU-T, ensuring widespread acceptance and conformance.
Implementing ISO/IEC 13818-1:2022/Amd 1:2023 allows organizations involved in multimedia distribution and processing to leverage advanced coding technologies like LCEVC, improve service interoperability, and future-proof their systems while adhering to leading international standards.
Open preview (PDF)Information technology — Generic coding of moving pictures and associated audio information — Part 1: Systems — Amendment 1: Carriage of LCEVC and other improvements
