H.264
This site uses QuickTime 7 featuring the state-of-the-art video codec H.264
H.264 in QuickTime 7 delivers stunning
quality at remarkably low data rates. Ratified as part of the MPEG-4
standard (MPEG-4 Part 10), this ultra-efficient technology gives you
excellent results across a broad range of bandwidths, from 3G for
mobile devices to iChat AV for video conferencing to HD for broadcast
and DVD.
Massive Quality, Minimal Files
H.264 uses the latest innovations in video compression technology to
provide incredible video quality from the smallest amount of video
data. This means you see crisp, clear video in much smaller files,
saving you bandwidth and storage costs over previous generations of
video codecs. H.264 delivers the same quality as MPEG-2 at a third to
half the data rate and up to four times the frame size of MPEG-4 Part 2
at the same data rate. H.264 is truly a sight to behold.
Built into QuickTime 7
Because H.264 is now an integral part of the QuickTime 7 architecture
in Tiger, QuickTime-based applications — including iChat AV, Final Cut
Pro HD and a litany of third-party applications — can take full
advantage of this incredible new video codec.
H.264 in QuickTime 7 for Tiger
implements a set of advanced
technologies and patent-pending techniques to create pristine video at
low data rates. The H.264 encoder features:
* Intelligent multi-pass encoding for the best
possible results at the desired bit rate with the optimal number of
compression passes.
* Time-saving single-pass encoding for creating
draft encodes, meeting impending deadlines and live encoding with
QuickTime Broadcaster.
* Peak-constrained VBR options for limited data-rate scenarios such as streaming and CD/DVD playback.
* Advanced frame reordering (B-frame) support to more efficiently represent movie data.
* 4x4 integer transform for reducing
traditional blocking and ringing artifacts, especially in areas of fine
detail.
* Improved intraframe prediction for more
efficient compression of details and gradients in high-motion video.
* Increased precision in motion estimation for crisp reconstruction of objects in motion.
* Flexible block sizes in motion estimation for
more efficient encoding of complicated motion in areas of fine detail.
* Adaptively tuned in-loop deblocking filter
for eliminating blocking artifacts, resulting in a smooth, clean image.
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