Autodesk 62205-051408-9001 User Guide - Page 808

QuickTime Streaming Format, Motion JPEG A and Motion JPEG B, Photo - JPEG, Sorenson, Video

Page 808 highlights

31 Rendering Kbps. There is a wide range of architectures that support H.263. Motion JPEG A and Motion JPEG B-Are designed to simplify the process of digitizing video on one QuickTime-compatible video card and playing it back on another. These codecs are essentially "generic" versions of the Motion JPEG codecs that many manufacturers use in a proprietary way. You can use these codecs to generate QuickTime movies that can be played back on any Motion JPEG-based video cards or systems that support this feature of QuickTime (Avid®, Media 100®, and TARGA, for example). These codecs do not support alpha channels. None-Uses no compression on the QuickTime movie. This codec would typically be used for storage of a movie that needs to be identical to the original. However, you can use the Animation compressor at 100% quality to save hard drive space since None can generate very large files. This codec supports all color depth resolutions, including alpha channels. Photo - JPEG-Uses the Joint Photographic Experts Group compression algorithm. This codec works well with digitized imagery, but not as well for computer-generated imagery. Decompression for playback can be very slow, so this codec is also best used for storage purposes. Alpha channels are not supported. Sorenson®-Uses new vector quantization techniques, advanced motion compensation, and precise adaptive rate control features. It provides highly compressed, high-quality video stream for use in multimedia applications, the World Wide Web, or any other application where a high-quality, low-bandwidth video stream is required. The compression technology is scalable from 2 to 200 Kbps, providing great results whether publishing to a 28.8 Kbps modem or to a CD-ROM. It allows for a video data transmission rate of up to 30 frames per second. This codec does not support alpha channels. Video-Uses a compression algorithm optimized for fast decompression. However, this codec supports up to 16-bit color depth only, so it may not be suitable for most projects created with Combustion. Alpha channels are not supported. Note: These are not the only codecs you might encounter; if you installed a QuickTime-compatible video card or additional QuickTime software, there may be additional codecs available to you. For more information about these, consult the manual of your particular video card or software. QuickTime Streaming Format You can use the QuickTime Streaming format to produce streaming media files that can be broadcast over a network or the Internet. To prepare a QuickTime movie for streaming, you need to set a few options and hint the movie. This means creating a hint track for each media track (video and audio). The hint tracks provide QuickTime Streaming Server software with information about the server, the transmission packet size, and the protocol to be used. This describes how to send the movie data over a network, for example, over the Internet. Since hint tracks are stored in the movie, the movie file becomes larger. Note: You can use the QuickTime Streaming output format on the Windows and Macintosh platforms. To create a QuickTime Streaming file: 1. On the Output Settings panel, select QuickTime Streaming from the Format list. 2. Click Options. 792

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Rendering
31
792
Kbps. There is a wide range of architectures that
support H.263.
Motion JPEG A and Motion JPEG B
—Are
designed to simplify the process of digitizing video
on one QuickTime-compatible video card and
playing it back on another. These codecs are
essentially “generic” versions of the Motion JPEG
codecs that many manufacturers use in a proprietary
way.
You can use these codecs to generate QuickTime
movies that can be played back on any Motion
JPEG-based video cards or systems that support this
feature of QuickTime (Avid
®
, Media 100
®
, and
TARGA, for example). These codecs do not support
alpha channels.
None
—Uses no compression on the QuickTime
movie. This codec would typically be used for
storage of a movie that needs to be identical to the
original. However, you can use the Animation
compressor at 100% quality to save hard drive space
since None can generate very large files. This codec
supports all color depth resolutions, including alpha
channels.
Photo - JPEG
—Uses the Joint Photographic
Experts Group compression algorithm. This codec
works well with digitized imagery, but not as well for
computer-generated imagery. Decompression for
playback can be very slow, so this codec is also best
used for storage purposes. Alpha channels are not
supported.
Sorenson
®—Uses new vector quantization
techniques, advanced motion compensation, and
precise adaptive rate control features. It provides
highly compressed, high-quality video stream for
use in multimedia applications, the World Wide
Web, or any other application where a high-quality,
low-bandwidth video stream is required. The
compression technology is scalable from 2 to 200
Kbps, providing great results whether publishing to
a 28.8 Kbps modem or to a CD-ROM. It allows for a
video data transmission rate of up to 30 frames per
second. This codec does not support alpha channels.
Video
—Uses a compression algorithm optimized
for fast decompression. However, this codec
supports up to 16-bit color depth only, so it may not
be suitable for most projects created with
Combustion
. Alpha channels are not supported.
Note:
These are not the only codecs you might
encounter; if you installed a QuickTime-compatible
video card or additional QuickTime software, there
may be additional codecs available to you. For more
information about these, consult the manual of your
particular video card or software.
QuickTime Streaming Format
You can use the QuickTime Streaming format to
produce streaming media files that can be broadcast
over a network or the Internet.
To prepare a QuickTime movie for streaming, you
need to set a few options and
hint
the movie. This
means creating a hint track for each media track
(video and audio).
The hint tracks provide QuickTime Streaming
Server software with information about the server,
the transmission packet size, and the protocol to be
used. This describes how to send the movie data over
a network, for example, over the Internet. Since hint
tracks are stored in the movie, the movie file
becomes larger.
Note:
You can use the QuickTime Streaming output
format on the Windows and Macintosh platforms.
To create a QuickTime Streaming file:
1.
On the Output Settings panel, select QuickTime
Streaming from the Format list.
2.
Click Options.