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DNX HD 145 question…cross-platform usage???
okay,another question…
Hypothetical situation:
I’ve got a HD,DNX HD 145 sequence I’m using in my AVid Symh Nitris. It’s QT-wrapped, and upon export shows up as a .mov file. I bring this back into another Avid (were talking windows platform,say XP), and everything plays down fine.
Can this exported file be used in a MAC system,say FCPro? Must I use another CODEC? IN other words, can a DNXHD145 codec be installed or used with an Apple-system (FCPro,after efx, etc)You can see by my ?, as with my post earlier,I’m a file newbie,relatively speaking, despite 25 years of editing.
The shame 🙁I want to learn. Thanks for any help.
Rob NYC
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8 Replies
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If you have to give a quicktime file using the DNxHD codec to another person–Mac or PC–send them here or download these installers and burn them to a disk for them:
Have them download/install the codecs and they should be able to play or files, or convert it file to another codec of their choice.
Michael
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I’ll be working late. -
Michael: thanks for the link.
Again,with the understanding that I’m an advanced file-structure novice, will a file from windows-Avid as a DNX HD 145 be able to play in a MAc system? What I’m at a loss for understanding is HOW it will play.
Sorry if I was being obtuse.Thanks so much again for your knowledge.
RR NY -
I hope I didn’t come across as mean or condescending! I honestly didn’t mean to.
Quicktime is just a wrapper for a file, and the codec you use to encode it must be available for both Mac and PC for a file to be cross-compatible. For example, if you capture DVCProHD footage into FCP and take it to a PC it won’t play because the FCP DVCProHD codec is only available with FCP and is Mac only. You can buy a decoder like Raylight for the PC, which allows the PC to understand the codec and playback the file.
Avid’s codecs are the same for both PC and Mac. DNxHD isn’t locked to any one platform/OS. You just need to have the codecs installed on your system so Quicktime can read the file. To play a DNxHD file, install the Avid codecs and open the file in Quicktime. It will look to see if it has the codec it needs to understand the file, and if it does it will play just like it does on a PC.
There are plenty of codecs that aren’t compatible on both PCs and Macs, but Avid’s aren’t one of them. Since they make software for both they’ve made sure their codecs are platform agnostic too for both encoding and decoding. Apple made ProRes available to be read on both PCs and Macs, but you can only encode to ProRes on a Mac with FCP installed.
Does that make sense? I may not be explaining it well.
Michael
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I’ll be working late. -
NOt at all…your answers on here are ALWAYS chock full-o-information that’s understandable, and I sure as heck have appreciated your ingsight. YOu just explained in a short P or two what I’ve been searching to understand for months.
Thanks.
I’ll look into those codecs,and hopefully will understand mroe of HOW they work with more research
rob -
Rob,
Here is my response to your question as it was also posted in the Avid Community Forums.
<>
Terence Curren
http://www.alphadogs.tv
http://www.digitalservicestation.com
Burbank,Ca -
Extremely helpful. Thanks much!
rob -
Michael – Can I ask you to elaborate on your example above as I am having a similar problem, however I work on a mac.
I am trying to import .movs that were originally imported into fcp -the files’ codecs are all DVCPRO HD 720p60. I want to use those files as source footage in avid. I have tried to import them into avid mc 2.8.4 with adrenaline, my project settings are 720p/59.94. I have the video resolution set at DnxHD145 mxf. After I import the footage, it does not playback at the correct frame rate. It stutters slowly. I do see duplicate frames in the info menu of the source window, but I have seen that in other projects I have edited, and it never effects playback.
Also, I have tried to import them with DVCPRO HD mxf setting -sometimes I get the error message or else it comes in and stutters like the example above.
Do you have any answers/solutions you could pass along..thanks!Tina O’Sullivan
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After digging around – I used quicktime pro and exported the .movs using the avid dnxhd codec to the DNxHD 145 codec and they are importing beautifully and playing back great.
I think quicktime pro is the solution.
Unless you have another solution, which is always good to know, thanks for your time, TTina O’Sullivan
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