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video desaturation playback stopped
just recently ive noticed that when i stop video playback, the video destaturates slightly, and when i start playback again, the saturation/contrast goes back to normal. as you can imagine this is very frustrating, any ideas as to why this is happening?
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11 Replies
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Completely depends on where you’rr seeing this. You say “video” but do you mean the computer screen?
bogiesan
This is my standard sigfile so do not take it personally: “For crying out loud, read the freakin’ manual.”
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no, it is not appearing on the computer screen. only on my monitors from a betasp. its a black magic decklink card. i just recently updated everything, and if i remember correctly there was a new update for FC5. thats about the time that i started noticing it. anyone else notice anything like this.
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Yes I have seen that and it has to do with whether or not FCP or BMD is handling the effects and if unlimited RT is activated.
Check under system setting in FCP to see who is handling effects.
Tony Salgado
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what should it be set too, FCP or BMD? im not sure what its set too since im not at the office, but i know i have safe RT set.
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Well that depends on what real time effects either offers.
If you want the CPU to take on the load and give you as many unlimited effect previews then set it to FCP.
If BMD can handle the effect in real time then set it to BMD. However the problem occurs when you have the wrong setting and have unlimited effects on.
Check it out and you will see what I mean.
Tony Salgado
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Do you have the latest drivers? I had this problem with an earlier version of the BMD drivers, but not with the latest.
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yes, i have the latest drivers, and FCP is handling the effects. ahh its really startting to bother me
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if you have all the latest drivers and latest quicktime,
I guess you are editing in a sequence set to YUV codec
and you have turned on ‘overlays’ in the FCP canvas:it seems that FCP superimposes canvas overlays (like wireframe & TC) in RGB
which leads to color/level shifts when the video pauses (and the overlays are shown).so this is big issue to get rid off in FCP6 ! please
kurt
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yes the sequence is set to render in 8bit YUV. my only question is, if this is the reason then why does this “level fade” or whatever only happen on my external monitors and not my cinema display?
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[TeeRav] “yes the sequence is set to render in 8bit YUV. my only question is, if this is the reason then why does this “level fade” or whatever only happen on my external monitors and not my cinema display?”
thats because your cinema display gets YUV->RGB signal and the external monitor gets YUV directly.
when overlays are switched on, the external monitor gets
YUV->RGB + overlays in RGB -> RGB->YUVturning off canvas overlays might solve your problem by avoiding the YUV->RGB->YUV convertion.
kurt
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