2.2.11.3 RTCP Profile Specific Extension for Video Preference

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The format of the RTCP profile specific extension for video preference is as follows:<25>


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Type

Length

Reserved

Frame Resolution Width

Frame Resolution Height

Bit Rate

Frame Rate (Fps)

Reserved

Type (2 bytes): The extension type. Set to 0x0005 (5).

Length (2 bytes): The extension length in bytes, including this header. Set to 0x0014 (20).

Reserved (4 bytes): Reserved for future extensions and SHOULD be set to zero (0). MUST be ignored by the receiver.

Frame Resolution Width (2 bytes): The requested width of the video frame in number of pixels.

Frame Resolution Height (2 bytes): The requested height of the video frame in number of pixels.

Bit Rate (4 bytes): The requested bit rate in kilobits per second. It is reserved for future extensions and SHOULD be set to zero (0). MUST be ignored by the receiver.

Frame Rate (2 bytes): The requested frame rate in frames per second. It is reserved for future extensions and SHOULD be set to zero (0). MUST be ignored by the receiver.

Reserved (2 bytes): Reserved for future extensions and SHOULD be set to zero (0). MUST be ignored by the receiver.