Choppy flv video playback in Safari

Hello,
since a couple of versions now Safari has taken on the bad habit of playing back Flash video in a choppy fashion. No matter what site (Lynda.com, Video2Brain, YouTube etc.), Flash movies just chop, crackle and pop.
Why is that so? No problem in Firefox, Chrome/Chromium.
Thanks for any hints to solve this!

johnmapley wrote:
I've restored, but don't see anything else I can try. These problems (or vast majority thereof, e.g. video seeking problems) occur across every iOS device I own or have ever used that runs iOS 8. Are you unable to reproduce them? I'd be very interested to hear if not.
The only thing I've noticed is occasionally is the video screen will not close when pressing Done. I then have to force close Safari. As for poor video quality I haven't experienced that,

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I hope this NEW POST will suffice as per your requirements.

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Do you have a list of sites and videos where the video is choppy?
If you don't want the McAffee add-on, remove it.

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Isolate. New user (follow http://support.apple.com/kb/HT1199). Safe Boot (follow http://support.apple.com/kb/HT1455). Test to see if Quicktime has the same issue by watching videos at http://www.apple.com/findouthow. Is your Flash player up to date? Visit http://www.adobe.com to check. Let us know.
Message was edited by: jgelements

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Message was edited by: Jokerboy649

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http://www.apple.com/iphone/specs.html
Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format.

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Checking Console.app messages once again, the following lines seem to coincide with at least some of the stalling incidents:
===
2013/03/05 1:32:33.231 am Finder[595]: PlotISImageRef 0x29f50026 InContext 0x7f986b3c1340 in {33.000000,493.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:32:34.499 am Dock[590]: no information back from LS about running process
2013/03/05 1:34:58.597 am Safari[8023]: PlotISImageRef 0x20990018 InContext 0x7ffb9b9d6ea0 in {33.000000,493.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:35:00.853 am Dock[590]: no information back from LS about running process
2013/03/05 1:35:39.917 am TextEdit[8026]: PlotISImageRef 0x25910017 InContext 0x7f8873a45940 in {33.000000,493.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:35:41.186 am Dock[590]: no information back from LS about running process
2013/03/05 1:42:14.318 am Finder[595]: PlotISImageRef 0x29f50026 InContext 0x7f986c064400 in {33.000000,514.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:42:15.986 am Dock[590]: no information back from LS about running process
===
Any significance to this? Thanks for any help.
- Gord

Choppy flv video playback in Safari

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