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Wraptor DCP
I just exported a feature length film (80mins) using Wraptor DCP. The final DCP size is only 30GB. That seems small to me. The DCP runs and sounds ok using DCP-O-MATIC Player, but the small size is still throwing me off a bit. Any thoughts/suggestions? Thanks!
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1 Reply
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Caveat: Based on limited experience.
DCP picture is JPEG2000 compressed and it is an image sequence, which is quite different from motion codecs. In some cases it can be extremely efficient. In an image sequence, there is no practical minimum frame size. Your net bitrate is 0.26MB per frame. My gut says that does seem a bit small, but if your program is “easy” to compress and you did not deliberately set compression to a very high quality, I can imagine that this bitrate is possible and acceptable.
One of the difficulties of DCP is setting up a reference quality playback to evaluate. You need to get a true playback to the size you expect in order to evaluate the resulting quality. You don’t need to playback the DCP to evaluate picture quality. You can pull the image sequence out of the package and re-wrap it, or just use a player that can play an image sequence directly. This doesn’t check the DCP package, but it’s useful for evaluating the compression quality when you don’t have a proper DCP player.
Cheers,
Tod Hopkins
Hillmann & Carr Inc.
Washington, DC
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