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Specification for Devices
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2021
Version: 4.20-r121
Date: 20192020-1207-1924
CONTENTS
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Version Number | Chromium | Date | Comment |
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4.9.0 | 53.0 | 2016-08-18 | Publication release |
4.9.0-r1 | 53.0 | 2016-11-04 | Changes: - Removed text about terminal-defined behaviour in the exit key. The application may now manage this key event freely.
- The Application MUST handle both VK_BACK_SPACE and VK_BACK.
- The Application MUST support HD, Full HD or both resolutions
- Removed mention of viewport META tag
- The Application MUST explicitly set colors
- Restructured content
- Improved clarity and grammar
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4.10 | 56.0 | 2017-03-16 | Publication release Changes: |
4.10-r1 | 56.0 | 2017-09-14 | - Rebranded to a new company entity
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4.11 | 59.0 | 2018-02-19 | Changes: - Updated Chromium version
- Fixed MSE reference [30]
- Added sections on HDR and 4K video support
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4.12 | 63.0 | 2018-04-03 | Changes: Added cipher suites requirements: section 3.10.4. Added Advert Insertion performance requirements: section 3.11.2. Devtools must be disabled: section 3.10.5. Added requirement for MPEG-DASH period in section 3.2.3.2.1. Added requirement for PlayReady automatic license acquisition: 3.5.1.2.
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4.13 | 67.0 | 2018-07-20 | Changes: |
4.13-r1 | 67.0 | 2018-02-05 | Changes: Added AV1 codec requirements: section 3.6.2 Added Ogg Vorbis audio codec requirements: section 3.6.3 Added CustomData and License Acquisition override feature optional requirement 3.5.1.2.1
Removed VP8 requirement.
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4.20 | 77.0 | 2019-09-20 | Changes: - Added Dolby AC4 codec and Dolby Atmos requirements: section 2.4.1.2.
- Added Marlin DRM requirements: section 3.5.1.5.
- Added image rendering performance requirements: section 3.11.3.
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4.20-r1 | 77.0 | 2019-12-19 | Changes: - Added CBCS requirement for PlayReady and Widevine DRM: section 3.5.1.4
- Added CMAF requirement: 3.6.4
- Stricter Widevine and PlayReady DRM security level requirement
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4.21 | 84.0 | 2020-07-24 | No changes in requirements. |
2. INTRODUCTION
2.1. Scope
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Specification for Devices 2021
Version: 4.21
Date: 2020-07-24
View file |
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name | Vewd Certify for Devices 4.21.pdf |
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height | 250 |
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Older versions:
Specification for Devices 2020
Version: 4.20-r1
Data: 2019-12-19
View file |
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name | Vewd Certify for Devices 4.20-r1.pdf |
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height | 250 |
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Older versions:
Specification for Devices 2020
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