H.264, I-frame, Macrovision – Apple DVD Studio Pro 4 User Manual
Page 652
H.264 Based on the MPEG-4 part 10 format, the H.264 format, the H.264 video format,
also known as Advanced Video Codec (AVC), provides for encoding with about twice the
efficiency as with the MPEG-2 format. This results in better quality at the same bit rate,
or you can choose to use a lower bit rate to achieve the same quality (with a smaller file
size). In DVD Studio Pro, the H.264 format can only be used with HD projects.
HDV An HD video format, using high bit rate MPEG-2 encoding, designed to be recorded
on standard mini-DV tapes. HDV video can be edited in Final Cut Pro 5 and used in your
HD projects without ever needing to be transcoded.
HVDVD_TS The folder required on HD DVD-Video discs. DVD Studio Pro creates the
HVDVD_TS folder when you build your HD project. It contains all of the video, audio,
subtitle, menu, and navigation files that make up your HD DVD-Video title.
I-frame Intra frame. In an MPEG video stream, I-frames, also known as reference or key
frames, contain the complete image of the current frame. Unlike B-frames and P-frames,
I-frames do not rely on other frames to provide image information. Each GOP contains
one I-frame. See also
,
interactive markers See
interactive subtitles See
.
jacket picture An optional part of the DVD-Video specification that is intended to allow
a DVD player to display a graphic representing a DVD, either on a separate display or
when the DVD player is stopped.
layered menu creation method A method of creating menus that takes advantage of a
Photoshop PSD file having separate layers for each button in its three states (normal,
selected, and activated). This allows you to use complex graphics for the button highlights;
however, you cannot include a motion video background or audio. See also
,
letterbox A method of displaying 16:9 video on a 4:3 monitor. The entire frame appears,
with black bars at the top and bottom. See also
.
Line 21 support In NTSC systems, the video line that can contain special data. Most often
used to contain closed caption information.
Macrovision Provides analog-based copyright protection for an SD DVD’s contents. See
also
Content Scrambling System (CSS)
,
Copy Generation Management System (CGMS)
marker An element you can add to a track to identify specific parts of the track’s content.
There are several marker types, including chapter markers used to link chapter buttons
and button highlight markers used to control buttons over video. You can have up to 99
chapter markers in a track, and up to 255 total markers in a track. Markers can only be
placed at GOP boundaries. See also
.
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Glossary