HDR HDR Content Distribution & Delivery

Question 1

Which streaming protocol is most commonly used to deliver HDR video content over the internet with adaptive bitrate support?

Accepted Answer

HLS (HTTP Live Streaming)

Answer

HLS is the dominant protocol for internet HDR streaming, supporting adaptive bitrate delivery to adjust quality based on available bandwidth while preserving HDR metadata.

Question 2

What is the minimum recommended bit depth for encoding HDR video for streaming distribution?

Accepted Answer

10-bit

Answer

10-bit encoding is the minimum standard for HDR distribution, as it provides sufficient tonal gradations to represent HDR content without banding artifacts.

Question 3

Which codec is most widely used for HDR10 content distribution on Ultra HD Blu-ray discs?

Accepted Answer

HEVC/H.265

Answer

HEVC (H.265) is the required codec for Ultra HD Blu-ray, providing the compression efficiency needed to deliver 4K HDR10 video at practical bitrates on disc.

Question 4

What HDR metadata format is encapsulated within the SEI (Supplemental Enhancement Information) messages of an HEVC stream?

Accepted Answer

HDR10 static metadata

Answer

HDR10 static metadata, including MaxCLL and MaxFALL values, is carried within HEVC SEI messages as per SMPTE ST 2086 specifications.

Question 5

Which HDR format uses a backward-compatible approach that does not require metadata, making it simpler to distribute over broadcast television?

Accepted Answer

HLG (Hybrid Log-Gamma)

Answer

HLG (Hybrid Log-Gamma) was designed for broadcast distribution and is backward compatible with SDR displays, requiring no metadata and fitting standard broadcast workflows.

(HDR) High Dynamic Range Certification Practice Test

(HDR) High Dynamic Range Certification Practice Test

HDR HDR Content Distribution & Delivery