Other 4K playback extremely choppy

212rikanmofo

macrumors 68000
Original poster
Jan 31, 2003
1,685
642
i tried doing a test by recording using 4K at 60fps. When viewed on the iPhone Xs Max it plays smoothly. However when air playing or copying the file to my computer and viewing using VLC I noticed that it’s pretty choppy. Any ideas on why?
 

akash.nu

macrumors G3
May 26, 2016
8,740
10,003
i tried doing a test by recording using 4K at 60fps. When viewed on the iPhone Xs Max it plays smoothly. However when air playing or copying the file to my computer and viewing using VLC I noticed that it’s pretty choppy. Any ideas on why?
Is it an old computer?
 

maxsquared

macrumors regular
Jun 27, 2009
178
58
Depends. If you have a MacBook post 2016 then use QuickTime. As 4k60p use hevc and VLC isn’t very good at decoding it, but QuickTime is.
 

212rikanmofo

macrumors 68000
Original poster
Jan 31, 2003
1,685
642
I have an early 2015 12" MacBook and a late 2013 iMac. Would that work? But how come playback is smooth when I've seen other people post their 4k video taken with the new iPhone Xs on Youtube?
 

treyhunnid

macrumors regular
Sep 13, 2018
114
75
It’s your vlc that’s choppy. Not ur processor. Try another video player that does hevc decoding Like QuickTime. Or change the encoding type ur phone camera settings and then record a new video and try it on vlc again. Apples got their own in house compression it uses for 4K.
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I have an early 2015 12" MacBook and a late 2013 iMac. Would that work? But how come playback is smooth when I've seen other people post their 4k video taken with the new iPhone Xs on Youtube?
Youtube reencodes it with vp9 codec.
 
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