I just upgraded to FCP X 10.6.2 and some h264 files are no longer playing back properly (though they work fine in VLC and in older versions of FCP... HEVC files from the same camera work. just fine). They stutter and are mostly black with a skipping of the video. I can't render the files out plus transcoding getting stuck at 99% so I can't work with proxies or optimized clips.
The A**9 drive is full.
disk2s1 - A**9
255.87 GB (251.57 GB used, 4.28 GB free)
Mount point: /Volumes/A**9
Also, where did these H.264 files come from? A GoPro? We've had intermittent issues where GoPro 10 video turns black. Quitting FCP and reopening the library has always fixed it though.
Sure thing. Sorry for the delay (my son just got sick), but I shot a few sample clips for you to compare.
Do the h264 videos play normally for you in FCPX or just the h265 ones?
I also grabbed the video details from VLC. Is this sufficient for what you're looking for? If not, you should be able to check out the additional detail from the video files themselves.
The H.264 plays without problem on my M1 MBP, but very badly on a 2019 MBP. Despite what VLC showed, probably the display size, they're both HD 1080p. I can't see any real difference in the files except for the size. Maybe the buffer dimension is a problem, but I don't know why.
Thank you both for checking that and confirming. I’ve got an Intel MB Pro so it seems like that’s a common thread.
Is there some plug-in or codec we can download to regain compatibility with the h.264 files?
Thank you! Transcoding with ffmpeg did the trick and now I'm able to salvage the footage. Hopefully video quality is still comparable to the original file since I do want to also demo video quality from the camera. :) Either way, this trick is a lifesaver! Thank you!
Sure thing Tom. I've previously given FCP full disk access too FWIW, but the issue remains. Here's the report from EtreCheck:
Perhaps someone else can see something that's causing this.
The h264 files do not play normally in Quicktime Player on my mac, but they play in vlc.
The h265 play ok in both.
Possible to re-post the h.264 file?
Video clips not playing properly anymore
