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At the time of this writing, all seven major Hollywood studios are mastering in Dolby Vision for cinema. Studios that have pledged support to master content in Dolby Vision for home distribution include Universal, Warner Brothers, Sony Pictures, and MGM. Content providers that have agreed to distribute streaming Dolby Vision content include Netflix, Vudu, and Amazon. If you want to watch Dolby Vision content on television at home, consumer television manufacturers LG, TCL, Vizio, HiSense, Sony, Toshiba, and Bang & Olfusen have all shipped models with Dolby Vision support.
Organizing Your Timeline for Dolby Vision Mastering
One of the first things you need to do before doing a Dolby Vision grade is to organize your timeline accordingly. Because each clip undergoes a visual analysis to facilitate the Dolby Vision workflow, there are specific limitations to how clips can appear in a timeline.
— All clips to be analyzed in a Dolby Vision workflow need to be on video track V1; clips on other tracks will be ignored.
— All clips that overlap one another as part of a composite must be turned into a single item in the timeline in order to be correctly analyzed. This means that each group of clips that create a composite in a timeline, be it multiple overlapping clips combined via keys or alpha channel transparency, multiple overlapping clips combined using composite or blend modes, or text generators appearing above one or more video clips, must be turned into a compound clip for Dolby Vision analysis to work correctly.
Letterboxing for Dolby Vision Mastering
The analysis of clips in a Dolby Vision workflow keeps track of the timeline aspect ratio, as well as the image aspect ratio of each clip in that timeline. Programs that mix different aspect ratios of letterboxing (or blanking) will be accommodated by the Dolby Vision analysis, however Dolby Vision does not support letterbox on two sides (both pillarbox and letterbox), only one at a time.
If you choose Show Blanking Clip Override in the Output Sizing mode of the Sizing palette, you have the option of overriding the overall Timeline Blanking settings with individual Clip Blanking settings. You can do this by choosing the Clip option and then turning off the Use Timeline Blanking checkbox. At this point, you can choose any letterboxing format you want, and the correct letterboxing ratio will be stored as part of the metadata.
The Show Blanking Clip Override options with the Use
Timeline Blanking box unchecked