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Same as source export - MXF

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stig olsen
Same as source export - MXF
on Jun 27, 2014 at 1:45:52 pm


The material on my timeline is imported through fast import from MXF files.
When exporting these files as "same as source" I guess it actually should be exported as MXF.
I find it strange that Davinci Resolve cant handle it, as if it was a codec problem. It is because the PIX-material is an another codec baked into a MXF container?


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Shane Ross
Re: Same as source export - MXF
on Jun 27, 2014 at 5:28:24 pm

It's my understanding that a "same as source" QT export is an export to a Quicktime File that has the same codec as the source. But there are many file types that, while are MXF, cannot be exported "same as source." Most often you need to transcode the sequence to DNxHD, and then export same as source. And it won't be MXF...because in the EXPORT window you are choosing SEND TO QT...that's when you get the interface where you can choose SAME AS SOURCE

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Pat Horridge
Re: Same as source export - MXF
on Jun 28, 2014 at 8:13:32 am

Same As Source just means don't transcode. The Wrapper has no real impact. So H264 in QT to H264 in MXF is transparent in quality. SAS should be quicker as well.
The only impact changing the wrapper has is the wrappers ability or not to carry metadata and if thats passed across.
That's effectively what the old log and transfer resolved in legacy FCP. QT has poor metadata support so the metadata was transfered to the clip info when a file was rewrapped to QT.

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neil forsyth
Re: Same as source export - MXF
on Jun 28, 2014 at 8:14:43 am

Make sure you what you are trying to link to in resolve is a supported format.

Is it a PIX 240? these save as:

Apple ProRes 4444, 330 Mb/s, 12-bit
Apple ProRes 36, 100, 145, 220 Mb/s, 8 and 10-bit
Avid DNxHD 36, 145, 220 and 220x
Quicktime wrapper (.MOV), UDF File System

When I ingest rushes I tend to AMA all media and then comp sequences and transcode everything a DNx MXF which gives me a files I can link to via AAF import in resolve.

Hope this helps.

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