3.1.3 Initialization

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Bitmap compression using NSCodec bitmap compression techniques (section 3.1.8) requires that the following settings MUST first be determined by examining the NSCodec Capability Set (section 2.2.1):

  • Lossy Bitmap Compression Ability (section 3.1.1.1)

  • Chroma Subsampling Ability (section 3.1.1.2)

  • Maximum Supported Color Loss Level (section 3.1.1.3)

The NSCodec Capability Set is encapsulated in the Bitmap Codecs Capability Set ([MS-RDPBCGR] section 2.2.7.2.10), which is encapsulated in a server-to-client Demand Active PDU ([MS-RDPBCGR] section 2.2.1.13.1) or client-to-server Confirm Active PDU ([MS-RDPBCGR] section 2.2.1.13.2).