4.5

121Compressor User Guide
Designate the feature video as textless
If your Feature video doesn’t contain any titles, it should be marked as Textless. This
setting is selected by default.
1. In the Compressor batch area, select the Feature row item.
2. In the Job inspector, scroll down to Feature Video Properties, then select Textless (if it’s
not already selected).
Submit HDR content to the iTunes Store in Compressor
You can use Compressor to prepare HDR (high dynamic range) content packages
for submission to the iTunes Store. Users with HDR-capable devices—Apple TV 4K
connected to an HDR-compatible television, recent iOS and iPadOS devices, or recent
Mac computers—can purchase or rent HDR content in high-definition or 4K resolution.
The iTunes Store plays the highest-quality version compatible with a user’s device.
You submit an HDR package in either of two standard HDR formats: HDR10 or Dolby Vision.
Both formats combine wide color gamut with the perceptual quantizer, a mathematical
transfer function that converts stored color values in the video file to high-dynamic-
range levels of contrast onscreen, approximating the sensitivity of human eyes. (For
more information, see Intro to wide color gamut and HDR in Compressor.)
When you submit an HDR video to the iTunes Store, you must also include a standard-
dynamic-range version of the video, unless the SDR version is already available in the
iTunes Store and you’re submitting a supplemental HDR upgrade package, or you’re using
iTunes to create the SDR delivery from the HDR source and Dolby Vision metadata. Your
HDR video must include HDR metadata.
For complete information about HDR delivery requirements, see the iTunes Video and
Audio Asset Guide.
Build a combined SDR/HDR package
If you’re submitting new video content, you must include both an SDR version and an HDR
version in the iTunes Store package. The SDR version is considered the “master,” defining
the video duration, frame rate, and frame size; the SDR master also provides the audio
track. The HDR version provides only the higher-resolution video (and doesn’t require an
audio track).
Note: If you’re submitting a supplemental HDR upgrade to SDR video already available in
the iTunes Store, or you’re using iTunes to create the SDR delivery using an HDR source
and Dolby Vision metadata, go to the next task, Build a combined SDR/HDR package from
an HDR-only source.
1. In Compressor, choose File > New iTunes Store Package.
An iTunes Store Package job appears in the batch area.
2. To add the SDR feature video to the package, do one of the following:
• Drag an SDR video file from the Finder onto the Feature row.
• Click Set on the right side of the Feature row, select an SDR video file, then
click Open.
An output row containing the selected video file (and an SDR badge) is added to the job.