I use Zoom Player on the PC which allows me to alter the brightness, contrast, etc. but I wanted it for a couple of music videos that I also watch on my 'phone. MX Player lets me adjust the brightness but I'd rather just sort it out properly. They're fairly short so it won't take long to re-encode them. Thanks for the suggestion though.
AppValley is a well designed 3rd party app store for iOS with over thousands of applications. It gives 100% access to games, tweaks, premium non-jailbroken apps, and much more!. AppValley app store gives unlimited access to popular MODs and has over 2 million downloads. It is now available for download on both iPhone and iPad devices. It also smoothly supports Apple’s latest iOS 13 updates. This 3rd party app store now poses as the best alternative to Apple’s very own App Store. Get more details from AppValley website https://appvalley.one/