High End Systems CATALYST DV, User Manual

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CHAPTER 19
Custom Content
Catalyst® V3 Media Server User Manual
159
DV ALWAYS has the same data rate, and our tests indicate that one DV file plays back as
well as any other, so it is much more predictable than PhotoJPEG.
Other QuickTime codecs can be recommended in specific applications
CODEC Recommended Use Pro Cons
DV-PAL PAL TV bound
footage or anything
that requires a
720x576, 25 fps
movie. Plays back very well,
even multiple movies
simultaneously. Heavy compression, doesn't handle
strongly saturated colors well
Heavy color downsampling (strong
reds look bad, for instance).
It cannot be used with any other
pixel size and frame rate.
DV/DVCPRO
-NTSC
NTSC TV bound
footage or anything
that requires a
720x480, 29.97 fps
movie Same as DV-PAL Same as DV-PAL
DVCPRO50-
NTSC Better color sampling
(4:2:2 rather than 4:1:1)
Twice the data rate for
better images Worse playback than DV-NTSC and
PhotoJPEG.
It cannot be used with any other
pixel size and frame rate.
DVCPRO50-
PAL Same as
DVCPRO50-
NTSC
Same as
DVCPRO50-NTSC
Motion JPEG
A and Motion
JPEG B: Playback is acceptable
Only option other than
DV that can handle
fields (interlaced
material) when properly
configured.
Can use arbitrary frame
sizes and frame rates.
Photo JPEG Single layer playback Adequate between 50
and 80% quality