Game Development Reference
In-Depth Information
1.3.3 Joint Activities Between MPEG and VCEG
MPEG and VCEG are joined forces together from time to time, making one standard
used by both the organizations. Three video coding standards have been developed
collaboratively:
1. ISO/IEC 13818-2—ITU-T H.262 (ITU-T
1994
): Generic coding of moving pic-
tures and associated audio information: Video is the result of the development
under the collaborative team of the ITU-T advanced video coding rapporteur
group and MPEG. It ushered in the era of digital television as it is known today.
2. ISO/IEC 14496-10—ITU-T H.264 (ITU-T
2003
): Advanced video coding for
generic audiovisual services is the result of the development under the collabora-
tive team known as the JVT. It has become the dominant video coding technology
worldwide and now accounts for roughly half of all communication network traf-
fic worldwide (and over 80% of Internet video).
3. ISO/IEC 23008-2—ITU-T H.265 (ITU-T
2013
): High-efficiency video coding is
the result of the development under the collaborative team known as the JCT-VC.
It is now emerging as a substantial advance over prior designs to ease pressure
on global networks and usher in an era of ultra-high definition television.
1.3.4 AVS
AVS is a working group on video coding standards, in particular for television,
Internet video, and surveillance video. AVS (Audio Video coding Standard) (AVS
website) is the informal name of the working group for digital audiovisual coding
standardization of China, which was founded by theMinistry of Information Industry
in June 2002, approved by Standardization Administration of China. The role of
this group is to establish general technical standards for compression, decoding,
processing, and representation of digital audio-video, thereby enabling digital audio-
video equipments and systems with high-efficiency and economical coding/decoding
technologies. After more than 10 years, AVS has established a series of standards,
including AVS1 (Gao et al.
2010
) and AVS2. AVS1 video part has been accepted as
an option by ITU-TFGIPTV for IPTV applications in 2007.
AVS1 standard is composed of several parts, such as technical specifications
for system multiplexing, video coding, audio coding, supporting specifications for
conformance testing, and reference software etc. For video coding, AVS1 video stan-
dards include two parts Part 2 and Part 7. Part 2, called AVS1-P2 in the AVSWorking
Group, mainly targets the high definition, high-quality digital broadcasting and dig-
ital storage media. Part 7 (AVS1-P7) is targeted at the growing mobile applications,
wireless broadband multimedia communication, and Internet broadband streaming
media. Similar to MPEG AVC/H.264, AVS1-P2 defines several profiles, including
Jizhun Profile, Jiaqiang Profile, Shenzhan Profile, and Yidong Profile to satisfy dif-
ferent requirements of various video applications. Jizhun Profile, the first defined
