T/AI 121-2023 AVS3 encoding specification

Scope

Scope: This document specifies the technical requirements and measurement methods for video encoders that use T/AI 109.2 (abbreviated as AVS3). This document is applicable to the development, testing, production, use, and maintenance of AVS3 encoders; Main technical content: Based on the current practical application of AVS3 8K encoders, it specifies the technical requirements and measurement methods for encoder functions, performance, input and output interfaces. The technical requirements for AVS3 8K ultra-high definition encoders include: compliance with transport stream standards, transport stream performance requirements, TS over IP stream packaging requirements, IP output performance requirements, compliance with elementary stream standards, audio and video bit rate fluctuations, functional and physical interface requirements, ASI output interface technical requirements, total encoding and decoding delay, power-on startup delay, audio and video relative delay, video technical requirements, audio technical requirements, and encoder image quality requirements. The measurement methods for AVS3 8K ultra-high definition encoders include: compliance with transport stream standards and performance measurement, TS over IP stream packaging and output performance measurement, compliance with elementary stream standards and audio and video bit rate fluctuations measurement, ASI output interface technical indicator measurement, total encoding and decoding delay measurement, power-on startup delay measurement, audio and video relative delay measurement, video technical indicator measurement, audio technical indicator measurement, and subjective evaluation of image quality.

Development Information

Related Standards