Cleanup scenarios for color space metadata - AWS Elemental MediaLive

Cleanup scenarios for color space metadata

This table shows the different possibilities for the color space of the content and the color space metadata associated with the content. In the first column, find the scenario that best describes the content in a specific input. In the second row, find a description of your intended handling in the outputs. The fourth and fifth rows specify the recommended options, and the final column describes the processing that MediaLive performs.

Color space scenario Intended handling in output

Color space field

Color space usage field

Result

Correct SDR and HDR metadata.

The content is any combination of color spaces—SDR, HDR, or both.

The metadata is correct everywhere.

Convert or pass through the metadata.

FOLLOW

This field is ignored.

Passthrough.

MediaLive doesn't change the color space metadata.

Correct HDR metadata.

All the content is HDR. The content is correctly marked for its color space. There might be a mix of HDR10 and HLG.
You plan to convert, pass through, or remove the metadata. FOLLOW

This field is ignored.

Passthrough.

You want to remove the metadata.

The content is any combination of color spaces—SDR, HDR, or both.

The metadata can be of any quality.

Remove the metadata.

FOLLOW

This field is ignored.

Passthrough.

MediaLive doesn't change the color space metadata. You plan to remove the metadata, so you don't care about its quality.

Incorrect SDR metadata and correct HDR metadata.

Some of the content is one specific SDR color space. The metadata might include incorrectly marked, unmarked, and marked as unknown content.

There might also be HDR content. The content is correctly marked for its color space. There might be a mix of HDR10 and HLG.

You plan to convert or pass through the metadata.

REC_601 or REC_709

Fallback

Cleanup.

MediaLive marks all the SDR content as using the specified color space. As a result, the metadata will all be correct.

It doesn't change the HDR metadata.

Correct SDR and HDR metadata, and missing metadata.

Some of the content is one specific SDR color space. All that content is correctly marked.

Some of the content is the other SDR color space, but is unmarked or marked as unknown.

There might also be HDR content. The content is correctly marked for its color space. There might be a mix of HDR10 and HLG.

You plan to convert or pass through the metadata.

REC_601 (if the unknown or unmarked content is 601)

Or REC_709 (if the unknown or unmarked content is 709)

Fallback

Cleanup.

MediaLive marks the unknown or unmarked content as using the specified color space.

It doesn't change the correctly marked SDR content.

It doesn't change the HDR metadata.

Incorrectly marked 601 and incorrectly marked 709 content.

Some of the content is one or both SDR color spaces, but some of the content is unmarked or marked as unknown.

There might also be HDR content. The content is correctly marked for its color space. There might be a mix of HDR10 and HLG.

You plan to convert or pass through the metadata.

FOLLOW

This field is ignored.

Passthrough.

There is no way to clean up this content because you can only mark all the content as one type of color space. But in this scenario, the metadata is incorrect in different types of color space. If you force the color space, some of the SDR content and all of the HDR content will be marked incorrectly. Inaccurate metadata will and result in an inaccurate conversion (if you convert), or in an inferior viewing experience (if you pass through).

Perhaps the only solution to this problem is to remove the metadata on the output side.