Indeo Video (commonly known
now simply as "Indeo") is a video codec
developed by Intel
in
1992. It was sold to
Ligos
Corporation in 2000. While its original version was related to
Intel's
DVI video stream
format, a hardware-only codec for the compression of
television-quality video onto compact disks, Indeo was
distinguished by being one of the first codecs allowing full-speed
video playback without using hardware acceleration.
During the development of what became the
Pentium microprocessor, Intel's
Architecture Lab implemented one of
the first, and at the time highest-quality, software-only video
codecs, which was marketed as "Indeo Video".
At its public
introduction, it was the only video codec supported in both the
Microsoft (Video for Windows) and Apple Computer
's QuickTime software
environments, as well as by IBM's software systems of the
day.
The original Indeo codec was highly
asymmetrical, meaning
that it took much more computation to
encode a video
stream than to decode it. Intel's
ProShare
video conferencing system took advantage of this, using hardware
acceleration to encode the stream (and thus requiring an add-in
card), but allowing the stream to be displayed on any personal
computer.
Intel produced several different versions of the codec between 1993
and 2000, when it was sold to Ligos, based on very different
underlying mathematics and having different features.
Indeo
Video Interactive, a wavelet-based codec
[164778] that included novel features such as
chroma-keyed transparency and hot spot support,
was aimed at video game developers.
Though Indeo saw significant usage in the mid-1990s, it remained
proprietary. Intel slowed development
and stopped active marketing, and it was quickly surpassed in
popularity by the rise of
MPEG codecs and
others, as processors became more powerful and its optimization for
Intel's chips less important. Indeo still sees some use in
video game cutscene
videos.
Official Indeo 5 decoders exist for
Microsoft Windows,
Mac
OS Classic,
BeOS R5 and the
XAnim player on
Unix. Versions 2
and 3 have decoders in
FFmpeg. Indeo version
3, 4 and 5 are supported by
MPlayer[164779] and XAnim. Version 5.11 is
freeware[164780] and may be used on all 32-bit versions of
Windows prior to Vista. Version 5.2 has been created for XP and is
available to buy from the official website
[164781] for use only with Windows 95, 98, ME, NT,
2000 and XP. This includes support for Indeo Video 4.5 and Indeo
Audio 2.5 codecs but the version 3.2 video codec has been removed
since the original release of Indeo XP for Windows. Indeo is not
supported and is not compatible with Microsoft Windows Vista,
Windows 7 or any Windows 64-bit operating system.
[164782][164783]
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