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US 10,432,959 B2Granted
Signaling high dynamic range and wide color gamut content in transport streams
AssigneeARRIS Enterprises LLC
InventorsMandayam Narasimhan, Ajay Luthra
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Abstract
A program map table in a transport stream comprising an elementary stream identifier indicating a particular elementary stream, a high dynamic range flag indicating the presence or absence of high dynamic range content within the elementary stream, and a wide color gamut flag indicating the presence or absence of wide color gamut content within the elementary stream.
Claims15
An apparatus for generating or receiving a transport stream including a program map table, the apparatus comprising:
- one or more processors including computer-readable instructions for generating a program map table that includes the following:
- an elementary stream identifier indicating a particular elementary stream within a transport stream;
- a High Efficiency Video Coding (HEVC) video descriptor signaling a syntax element using two bits for combining signaling of a presence or absence of both a high dynamic range (HDR) content and a wide color gamut (WCG) content in a single syntax element,
- wherein the high dynamic range content and/or wide color gamut content is associated with an elementary stream based on the elementary stream identifier signaled in the program map table.
1 more element
A method of encoding a digital video, comprising:
- receiving a video with high dynamic range content and wide color gamut content at an encoder;
- converting said high dynamic range content and wide color gamut content prior to encoding using one or more pre-processing operations at said encoder;
- encoding said video into an elementary stream at said encoder;
- generating a program map table comprising a High Efficiency Video Coding (HEVC) video descriptor signaling a syntax element signaled using a combination of bits for signaling a presence or absence of both a high dynamic range (HDR) content and a wide color gamut (WCG) content, wherein said high dynamic range content and said wide color gamut wide color gamut content wide color gamut content is associated with said elementary stream based on the elementary stream identifier signaled in the program map table;
- and
- including said program map table and said elementary stream in a transport stream.
3 more elements
A method of decoding a video, comprising:
- receiving at a decoder a transport stream comprising a program map table and an associated elementary stream;
- reviewing said program map table at said decoder for a High Efficiency Video Coding (HEVC) video descriptor signaling a syntax element signaled in a single syntax element using two bits for combining signaling of a presence or absence of both a high dynamic range (HDR) content and a wide color gamut (WCG) content;
- and
- decoding said elementary stream by associating said elementary stream associated with the HEVC video descriptor to high dynamic range and/or wide color gamut content when present,
- said decoder is configured to process high dynamic range and wide color gamut content.
2 more elements
Dependencies are inferred from the claim text.