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Compressor and reverse telecine
Say I want to reverse telecine using compressor, is there any way to do this with out adding a layer of compression? It seems that unless you apply a setting to the media file you do not have access to the Frame Controls tab in the inspector. Is there any way to do a “same as source” setting for the video?
Best,
EliEli Mavros
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7 Replies
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No, you create new media.
Jeremy
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Right, but say I removed the 3:2 in Cinema Tools, it doesn’t ask me to choose a compression…which always led me to believe it worked similarly to the “export quicktime” feature in FCP (as opposed to “export using quicktime conversion”). Maybe it is naive, but I thought Cinema Tools extracts the interlaced frames and then puts the rest of the frames back together and the metadata tells quicktime that it now plays at 24.
Thanks,
EliEli Mavros
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[Eli Mavros] “Maybe it is naive, but I thought Cinema Tools extracts the interlaced frames and then puts the rest of the frames back together and the metadata tells quicktime that it now plays at 24. “
As far as I know, that’s how it works. Compressor uses a different process.
What codec are you working in? If working ProRes, you shouldn’t worry about quality loss.
Jeremy
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Yeah, I’m working in ProRes HQ, and using the ProRes HQ setting for the transcoding. I am super anal about generational loss…but I need to get over that I guess 🙂 Footage still looks good, even if there is a generation loss. I don’t think it is a problem so much these days, as long as you don’t do it too often.
Thanks,
EliEli Mavros
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eli
cinema tools makes a new file at the same settings as the old, so if you have a 30fps file at ProRes HQ, cinema tools will give you a 24fps file at prores.
the name “compressor” is a total marketing thing. YOu really are only compressing when transcoding or reducing in size ie HD pro res to web QT
Compressor can be used for any file transcoding. use the Apple Advanced Codecs to get lossless results.
I use it for Scaling up media, as well as framerate conversions, and just match the seetings of my media.
hope this helps
“I like video because its so fast!”
Bob Flood
Greer & Associates, Inc. -
Hey Bob,
There would still be a generational loss even if you are sticking with the same codec, no? I have been mostly working with ProRes for the past year or so, but I remember that when I mostly worked with Apple 10bit, if I had a 10bit movie and exported it as 10bit using the “export using quicktime conversion” setting, and then A/B’d that export and the original, there would be a very slight difference sometimes…hardly noticeable, but there none-the-less.
Best,
EliEli Mavros
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[Eli Mavros] “”export using quicktime conversion””
That’s the problem. QT conversion sucks big time. using COmpressor, it’s a very good transcode, but be sure to turn on frame controls as this will keep the 10bit processing. Even if you don’t modify any of the settings, you will need to turn frame controls on. I would not worry about a generational loss in this case. ProRes is very very good at mutiple encodes. Gary Adcock did extensive testing on it and gave it huge thumbs up for multigenerational renders.
Jeremy
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