Safari, youtube, el capitan, flash...

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158 points

Safari, youtube, el capitan, flash...

am having a terrible time with this. i uploaded a (unlisted) video on youtube last week. it played a few times (for others as well). now...it stalls EVERY TIME, for me, for others as well.

it plays fine for everyone in chrome, and firefox. it plays apparently on older OS's. but, in el capitan, with flash up-to-date, and in safari only...this one video will not play past a second or two. it did originally...i think i recently updated flash.

i have re-uploaded the video 8 times, trying various encodings (in quicktime, or quicktime pro). NONE of them play.

IF i change the settings in youtube, ie from 1080 to 720, the video DOES play in safari. but i can't tell everyone to change their settings to accomodate this one video.

any ideas, anyone? other videos play. very frustrating (as we're planning to put the video up 'formally' in a few days)...

MacBook Pro with Retina display, OS X El Capitan (10.11.4), i7 - 16gb ram - logic X 10.2.2

Posted on Jul 6, 2016 4:36 PM

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Answer 1

Jul 6, 2016 4:39 PM in response to fisherKing

Open System Preferences > Flash Player then select the Advanced tab then click: Delete All under Browsing Data and Settings then quit and relaunch Safari and try a video.

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Answer 2

fisherKing Author

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158 points

Jul 6, 2016 4:47 PM in response to Carolyn Samit

not it at all... 😟. my suspicion is, it has something to do with the encoding of the video itself (which i'm having the editor look into). every other video on youtube seems to play. and this one did, until (i think), i updated flash recently. and again, this is only in safari (all is well in chrome & firefox)...

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Answer 3

fisherKing Author

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158 points

Jul 6, 2016 5:01 PM in response to fisherKing

plays fine on vimeo, so something with youtube.... ugh.

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Answer 4

Jul 12, 2016 11:01 PM in response to fisherKing

I Am having the same issue, been breaking my head trying to figure out the problem. Plays fine in Chrome but hangs on 1080p in Safari, yet changing it to 720p plays. I have had other people watch the video and it happens with them only in Safari. I have been trying to isolate what the issue could be. Out of curiosity, what program did you use to edit the video? Not sure if that has any impact at all with this issue, just trying to figure it out. I am using Final Cut Pro X fully up to date.

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Answer 5

fisherKing Author

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158 points

Jul 13, 2016 5:11 AM in response to rayjustchills

interesting, you're the first other person i've found with this issue. i just emailed the video editor, will answer your question (when he does). there was another flash update yesterday, but did not fix the problem.

i think it's something between the original render, and youtube/safari/el capitan/flash. but that's certainly not specific info...

will report in about the editing app when i find out. for now, we've posted our video on vimeo (with a short 'teaser' on youtube). not a solution, just a workaround...

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Answer 6

fisherKing Author

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158 points

Jul 13, 2016 5:47 AM in response to fisherKing

final cut pro 7....

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Answer 7

fisherKing Author

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158 points

Jul 13, 2016 12:04 PM in response to fisherKing

hard to find the common denominator. he edited the video in FCP7. i just edited a different video in FCPX, and it plays fine in that combination (youtube in safari on el capitan, with flash current). frustrating...

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Answer 8

Jul 14, 2016 1:20 AM in response to fisherKing

Okay so I did find something that seems to make it playback normally, at least for me. Previously, I have filmed and exported my videos at 23.98 fps in FCPX. Uploaded them and they playback fine in YouTube. However I think whatever the latest update is between safari/yosemite/youtube/flash (etc i really don't know) then that seems to be an issue. I reexported the same video in a new timeline in a 24fps project and uploaded it and voila, its playing back much better. It still seems to hiccup here and there, but this is night and day better than it not playing at all. Searching the YouTube FAQ, they list the following as acceptable frame rates, so perhaps it is something you can try? 24, 25, 30, 48, 50, 60.

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Answer 9

fisherKing Author

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158 points

Jul 14, 2016 4:25 AM in response to rayjustchills

i'll let the editor know. right now, we've posted the video on vimeo (with a 'teaser' video on youtube to point to it). but would prefer things just worked right! will report back, thanx for the info...

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Answer 10

fisherKing Author

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158 points

Jul 15, 2016 4:28 AM in response to fisherKing

editor exported at 25fps, and...stalled within the first second. so it goes; will report in here if we figure anything out.

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Answer 11

Jul 15, 2016 3:15 PM in response to fisherKing

Bummer, alright man. Good luck.

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Answer 12

fisherKing Author

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158 points

Jul 15, 2016 4:27 PM in response to rayjustchills

we're giving up for now, and have posted the video on vimeo instead (where, ironically, we're having an entirely different problem!). ah well, good luck to u too.

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Answer 13

Oct 1, 2016 3:01 PM in response to fisherKing

It's clearly an FCP issue (and doesn't seem limited to El Capitan) - I'm guessing it has something to do with encoding settings or something to do with sharing directly to YouTube from FCP.
But I've found that downloading the mp4 from YouTube, bringing that into iMovie and sharing that back to YouTube allows the video to play in Safari with no problems.
Obviously, that's just an annoying emergency workaround. I suspect finding a real solution will involve a lot of trial-and-error with FCP settings.

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Answer 14

fisherKing Author

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158 points

Oct 1, 2016 3:21 PM in response to Eagle Rock

we're way past this, having uploaded to vimeo. but since then, i've edited 3 videos in FCPX, now running sierra, and had no issues getting them directly to youtube. so it goes, thanks for the comments.

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Answer 15

Oct 1, 2016 3:31 PM in response to fisherKing

Yeah - I realized this was an older thread, but was also pulling my hair out trying to find anything to indicate why my YouTube videos suddenly weren't playable in Safari (but played just fine in all other browsers).
I haven't upgraded to Sierra yet - do the videos you share directly to YouTube from FCPX now play properly in Safari?

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