Multi-Angle Video

多视角影像 (Multi-Angle Video) is a video feature that provides two or more synchronized camera angles on the same program timeline, allowing viewers to switch between them. DVD-Video incorporates multi-angle functionality into its application specifications; some music DVDs use it to switch between panoramic, lead vocalist, band member, or behind-the-scenes camera angles. Blu-ray can also provide a similar experience through corresponding playback structures.

The angles must remain time-synchronized so that the player continues from the same point in the program when switching. DVDs typically store video segments from different angles in an interleaved format, sharing or coordinating with the same audio track; multi-angle features consume more storage capacity and total bitrate, so the number of angles, video quality, and program duration are mutually constrained. Not all titles or chapters need to enable this feature. Multi-angle is distinct from multi-camera switching in director’s cuts. A standard concert video release may use dozens of cameras, but the director predetermines which shot is displayed at any given moment, leaving the viewer with a single final cut; only when a disc or application retains and provides selectable, synchronized angles does it qualify as “Multi-Angle” in the interactive sense.

This technology can also be used for multilingual opening sequences, different subtitle screens, or partial replacements, without necessarily displaying different camera angles. The “angle” indicator on the player interface indicates that options are available for the current segment, but the specific meaning of each angle depends on the menu and program content.

If only the default angle is selected during capture or transcoding, other angles will be lost; treating interlaced segments as standard continuous video may also result in angle clips appearing out of order. Preserving the multi-angle structure requires retaining both its navigation and temporal relationships, rather than simply copying the main video track.