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I used to use Perian but switched to VLC a year ago after it stopped being developed. However, a few months ago I tried MPlayerX and it is a LOT faster than VLC.

I did notice though that colors look a lot better in QuickTime. I calibrated my screen years ago... Is it because being the native video player for the Mac it respects Color Profiles?

I can't say I know lots about it but I'm fairly sure colour profiles are enacted at an OS level and therefore would be reflected in all apps.
 
I can't say I know lots about it but I'm fairly sure colour profiles are enacted at an OS level and therefore would be reflected in all apps.
ColorSync was introduced in 1993 as an enhancement to System 7.1. It is available to all developers, but not all developers use it.
 
You could try http://mpv.io.

If it doesn't use Color Profiles by default, you may be able to configure it to use it.

EDIT: http://mpv.io/manual/stable/

icc-profile-auto
Automatically select the ICC display profile currently specified by the display settings of the operating system.

NOTE: Only implemented on OS X and X11

Is that what you are looking for?
 
Yes, this is what I am looking for! Downloading it right now. Thanks!

EDIT: MPV was way too confusing and had no options window so I ended up uninstalling it.

Sorry to hear that!

Yeah, it's not your average media player like VLC. However, it's actually not that bad once you learn it. It's by far the best media player I have ever used.

All options are entered in a file (~/.config/mpv/mpv.conf) and all available options can be found in the manual I linked. They can also be entered from the Terminal while opening a media file with mpv.
 
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