Optional ReadonlyplaybackDefaults to "auto". See DepthPlaybackSource.
Optional ReadonlymaxExact frames loaded ahead for playback, in bytes. Defaults to room for
twice previewPrefetchSeconds plus a quarter second of exact frames, at
least 96 MiB and at most 512 MiB; a shorter budget lowers the lead exact
playback reaches. A budget under one frame still holds the frame on
screen.
Optional ReadonlymaxDecoded preview frames kept, in bytes. Defaults to room for twice
previewPrefetchSeconds plus a quarter second of the clip, at least
96 MiB and at most 512 MiB. A budget shorter than the playback gate's lead
lowers the lead the gate waits for; one under one frame still holds the
frame on screen.
Optional ReadonlypreviewHow far ahead of the playhead the preview, and exact frames when they play, are decoded while playing, in seconds of media. Defaults to 1. Above 1x it stretches by how many frames each present moves; a drag spends the same span both ways, most of it the way the hand heads.
Memory and timing for a depth clip. Every byte budget defaults to a size that scales with the clip's resolution, so a 4K clip keeps as many seconds as a 720p one, within a ceiling.