Video display control using embedded metadata

摘要

In a system comprising capture, post production, any known video delivery channel, decoding and display subsystems, an apparatus and method are provided for generating, editing, delivering, processing and displaying video data to preserve the video creator's creative intent. Reference display metadata, used to guide the subsequent processing and display of the video data, is dynamically generated at the post-production stage and embedded into the video data.

主权项

1. A method of providing video data to a display subsystem, comprising:
(a) capturing a sequence of video frames to provide video data; (b) editing on a reference display an image provided by the video data; (c) generating metadata identifying configuration parameters of the reference display and characteristics of the edited image; (d) embedding the metadata in the video data, wherein the embedding the metadata in the video further comprises:
(i) retrieving a bit of metadata from a metadata packet to be delivered;(ii) locating a first guard bit in the video data;(iii) comparing a plurality of video bits preceding the first guard bit to a first word indicative of a reserved video word; and(iv) writing the bit of metadata in the first guard bit if the plurality of video bits preceding the first guard bit differs from the first word; (e) delivering the video data including the embedded metadata to the display subsystem; (f) extracting the metadata at the display subsystem; and (g) configuring the display subsystem or processing the video data for the display subsystem based at least in part on the metadata.