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Converting H.264 to ProRes - variable frame rate problems

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Christopher McDonell
Converting H.264 to ProRes - variable frame rate problems
on Nov 2, 2016 at 5:11:04 pm

Hi. I've been trying to figure this out on my own but am so far stumbling. My timeline is HDV 29.97 1080p (with ProRes 422 for rendering). FCP 6. I'm trying to bring in some footage shot on iPhone 5 as well as a video sent to me from India via WhatsApp.

The iPhone 5 footage seemed fairly straightforward. I used Compressor to transcode the footage but while it plays smoothly in QT (even though the frame rate changes throughout, from 22-30), it looks pretty horrible in FCP. Why on earth does the iPhone record at 26.62 FPS (as shown in QT's inspector?) Surely it's this variable frame-rate that's causing the motion blurring. Is this what I'm stuck with or is there a better workaround?

My problem's even worse with the WhatsApp video. I can't get it to transcode properly yet with audio. QT's inspector shows it as:

AVC Coding
640 x 352
FPS: 16.59

Compressor's attempt to transcode it to ProRes fails to include the audio. I've also noticed that it doesn't play with audio in QT Pro 7 while it does in the latest version of QT. I'm looking at other options (FLV, Handbrake)... Any suggestions?


My specs: FCP 6.0.6, El Capitan, rMBP 15" i7 2.6 GHz, 16 GB RAM

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