Standard dynamic range (SDR) / hybrid log-gamma (HLG) with high dynamic range (HDR) 10+

A non-transitory processor-readable medium that includes a program that when executed by a processor performs a conversion of the standard dynamic range (SDR) content to high dynamic range (HDR) content, comprising:

• accessing, by the processor, an HDR media content item;
• performing, by the processor, statistical analysis to determine statistical information associated with the HDR media content item at each incremental portion of the HDR media content item;
• generating, by the processor, HDR metadata for each incremental portion of the HDR media content item;
• deriving, by the processor, an SDR version of the HDR media content item using the HDR metadata, the deriving including encoding the HDR media content item to SDR content and normalizing data of the SDR content;
• transmitting, by the processor, the HDR metadata and the SDR version of the HDR media content item with embedding of the HDR metadata within a protocol with the SDR version to a storage service, wherein the HDR metadata indicates a type of tone scaling operation used to generate the SDR version of the HDR media content item;
• and
• causing the HDR metadata and the SDR version to be received at a display device, wherein the SDR version is converted to HDR per incremental portion with a dynamic range bounded based on the HDR metadata of the protocol.

An apparatus comprising:

• a memory storing instructions;
• and
• at least one processor executes the instructions including a process configured to:
• access a high dynamic range (HDR) media content item;
• perform statistical analysis to determine statistical information associated with the HDR media content item at each incremental portion of the HDR media content item;
• generate HDR metadata for each incremental portion of the HDR media content item;
• derive a standard dynamic range (SDR) version of the HDR media content item using the HDR metadata including encoding the HDR media content to SDR content and normalizing data of the SDR content;
• transmit the HDR metadata and the SDR version of the HDR media content item with embedding of the HDR metadata within a protocol with the SDR version to a storage service, wherein the HDR metadata indicates a type of tone scaling operation used to generate the SDR version of the HDR media content item;
• and
• cause the HDR metadata and the SDR version to be received at a display device, wherein the SDR version is converted to HDR per incremental portion with a dynamic range bounded based on the HDR metadata of the protocol.