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Codecs info change ?

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Roger Clark
Codecs info change ?
on Jul 11, 2011 at 2:43:49 pm

Quick question,
Even though I've transcoded my footage it still displays H.264,Linear PCM in my Codecs: box in the Inspector info.
I'm trying to find the cause of my sometimes choppy timeline, which will disappear if I re-start FCP-X.
I'm on a MacBook Pro , 2.66GHz Intel Core 2 Duo with 4gb ram and a Lacie 7200 rpm 320 GB partitioned external Hard Drive ( 100 GB available ) connected by FW 800. It's a 16 min movie.
Thanking you in advance, Roger


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Rick Lang
Re: Codecs info change ?
on Jul 14, 2011 at 4:31:31 pm

Roger, I believe memory is fairly inexpensive now and it may help your overall performance if your Macbook was running with 8 GB memory instead of 4 GB. It still sounds like FCP X has some areas where it either can’t keep up with something that is contending for the CPU or there may be a bug somewhere that’s causing the temporary stumbles. Regardless more memory will likely reduce the chance of this happening.

Rick Lang

iMac 27” 2.8GHz i7 16GB


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Roger Clark
Re: Codecs info change ?
on Jul 15, 2011 at 1:15:34 am

Thanks Rick, I'm going for more memory but I still can't understand why the codec info does not change in the Inspector when I've transcoded it ?


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Rick Lang
Re: Codecs info change ?
on Jul 15, 2011 at 4:00:30 am

Did you transcode it outside FCP X from H.264 or did you transcode it as part of the Import into FCP X or transcode it some time after you had completed the Import?

If it says it’s H.264 in the Inspector, what happens when you select a clip and try to transcode it (again)? Does it then tell you the code is already ProRes? If the answer is “yes”, that’s certainly a strange bug although perhaps there’s some hidden metadata that retains the original codec.

Rick Lang

iMac 27” 2.8GHz i7 16GB


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