Chapter 9:
Specifications
101
Examples of file containers are:
AVI (.avi)
QuickTime (.mov or .qt)
MP4 (.mp4)
DivX (.divx)
WMV (.wmv)
MPEG (.mpg)
Popular codecs
MPEG codecs.
The Motion Pictures Experts Group (MPEG)
has developed a number of AV codecs, including:
MPEG-1, which is used in VCD movies.
MPEG-2, which includes the audio codecs MPEG-2
Layer II (MP2) and MPEG-2 Layer III (MP3), which is
used in DVDs, HDTV, and many movie download
services.
MPEG-4, part 2, which is the basis for DivX, Xvid, and
other low-bit-rate codecs.
MPEG-4, part 10, also known as H.264 or Advanced
Video Codec (AVC), which is the basis for HD-DVD and
Blu-ray formats. It is also the default video codec in
iTunes.
AAC (Advanced Audio Codec), also known as MPEG-2,
part 7, or MPEG-4, part 3, is the default audio codec in
iTunes.
With MPEG-2, MPEG first introduced the concept of profiles
and levels. Profiles and levels define the minimum processing
requirements for a compliant decoder. For example:
DVD movies use MPEG-2 at Main Profile and Main Level
(or MPEG-2 MP@ML).
HDTV uses a subset of Main Profile at High Level
(MP@HL).
Two of the most common profiles for MPEG-4, part 2,
are the Simple Profile (SP) and the Advanced Simple
Profile (ASP).
Summary of Contents for x280n - MediaSmart Connect - Digital Multimedia Receiver
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