T/AI 105-2018 Active Group standards

T/AI 105-2018 AVS2 4K Ultra HD encoding technology requirements and measurement methods

Publish Date: 2017-09-15 Implement Date: 2017-09-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/AI 105-2018

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Broadcasting and television networks

ICS Name: Character sets and information encoding

Publish Date: 2017-09-15

Implement Date: 2017-09-15

Scope

Scope: This standard applies to the development, production, application, testing, and operation and maintenance of AVS2 4K ultra-high definition encoders for broadcasting and television professionals. Main technical content: This standard specifies the main technical requirements and measurement methods for 4K ultra-high definition encoders that use AVS2 for video encoding. Any equivalent measurement methods that can ensure the same measurement uncertainty may also be used. In case of disputes, this standard shall prevail. This standard replaces T/AVS 105-2017 "Technical Requirements and Measurement Methods for AVS2 4K Ultra-High Definition Encoders". The main technical changes compared with T/AVS 105-2017 are as follows: - The normative reference documents have been supplemented with "GB/T 33475.3-2018 Information Technology - High-Efficiency Multimedia Coding - Part 3: Audio" (see Chapter 2); - The audio encoding requirements in the basic stream standard compliance have been supplemented with AVS2 audio encoding parameter requirements (see Table 12 in Section 4.5.2); - The total encoding and decoding delay has been modified with the parameter indicator "The total encoding and decoding delay shall not exceed 10 seconds" being changed to "The total encoding and decoding delay shall not exceed 5 seconds" (see Section 4.10).

Development Information

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