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,cfa and .pek file madness
Okay I’m coming from FCP and I don’t understand how to turn the creation of these off.
I’m editing H.264 files, no control of this. I’m doing simple edits, cutting out unwanted spots, then just sending the seq to media encoder. These end up being several times larger than the file, I’m working with. Seems like every time I make an edit it creates a new file. I NEVER need quality playback on the timeline. Is there a way to turn these off? Are these the same as render files but are just referred to as cache files?
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21 Replies
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Hi Michael,
Welcome to the Premiere side. CFA and PEK files are audio conform and index files that Premiere creates for the edit. There should only be created once at import and they are required.
If you are seeing it happen constantly, there may be an other issue in play. You could try deleting the media cache folder and let Premiere start over.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
This is what I’m getting. There were 7 edits in the sequence where this clip is used. Only this clip is in the sequence.
RFGG263.mp4 (662.4MB)
RFGG263.mp4 48000_1.cfa (0MB)
RFGG263.mp4 48000_1.pek (1.3MB)
RFGG263.mp4 48000_2.cfa (0MB)
RFGG263.mp4 48000_2.pek (1.3MB)
RFGG263.mp4 48000_3.cfa (0MB)
RFGG263.mp4 48000_3.pek (1.3MB)
RFGG263.mp4 48000_4.cfa (642.3MB)
RFGG263.mp4 48000_4.pek(2.5MB)
RFGG263.mp4 48000_5.cfa (642.3MB)
RFGG263.mp4 48000_5.pek (2.5MB)
RFGG263.mp4 48000_6.cfa (642.3MB)
RFGG263.mp4 48000_6.pek (2.5MB)
RFGG263.mp4 48000_7.cfa (642.3MB)
RFGG263.mp4 48000_7.pek (2.5MB)
RFGG263.mp4 48000.cfa (0MB)
RFGG263.mp4 48000.pek (1.3MB) -
That’s madness alright…
The only thing I can think of is to throw all the H.264 in Adobe Media Encoder and convert them to something else. QT Animation if you have a RAID, or something with a smaller bit rate like half quality Motion Jpeg, edit with that as proxies, and replace when you are done with your edit.
My guess is Premiere just doesn’t like the files you are throwing in.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
Cannot convert before the edit. It is a bad workflow but I’m stuck with it. I have to edit 60-80 shows a week so I have to figure out how to make this work. I just wish there was a way to stop the creation of the large multiple cfa files.
Thanks.
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Michael,
There’s one more thing (Putting on that Columbo hat), try checking off the write XMP data box in your preferences. That should do the trick.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
From the naming structure of the cfa files generated it looks like the file you are working with has had to conform all the audio used into 48Khz which is why you are getting these larger files. Basically the video file you are working with is using a different Khz rate to the 48K in the sequence so it is converting it to a new audio file that is the cfa file itself which is linked to the original clip, but set to 48K for sync in the sequence you are editing in. 🙂
So know we understand what is happening… If you want to avoid this process and just edit in what you have and export with the same Khz sample you will need to make a new sequence with matching properties to the clip.
In CS5.5 you can select a clip in the project panel and right click to open the options and select the “New Sequence From Clip”. This will make a sequence matching all the properties of the clip. Then there is no reason for the cfa files. 🙂
– JB
Jon Barrie
aJBprods
Jon’s YouTube Tutorial Page
follow Jon with twitter -
Jon….
that was gr8 reply. Very insightful!
🙂
Alex
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No worries Alex. Just trying to keep up with all the great help.being provided to the FCP masses. 🙂
– JB
Jon Barrie
aJBprods
Jon’s YouTube Tutorial Page
follow Jon with twitter -
The problem is I’m having to resize the images because they need to be pillar boxed if 4:3 to 854×480, or remove letterboxing. The end file has to be 854×480 for everything.
The audio is already 48K but it is compressed, AAC I believe.
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Ok. The cfa file is an uncompressed version of the audio. (This process would happen with MP3 files too).
I m interested to know if you are editing from the source panel and adding in out point sections to timeline one at a time or throwing the whole clip to the timeline and removing the bits you don’t want.
I am guessing the section at a time method is creating the multiple instances of the cfa files…
How long are these original clips? And what are the recorded from?
Cheers.
JBJon Barrie
aJBprods
Jon’s YouTube Tutorial Page
follow Jon with twitter
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