MrMC

Platforms tested:
iPhone X
iPad Pro (A9 chip)

Issue:
When playing an MKV file with a 3D H.264/MVC video track, most media players will default to playing the 2D H.264 stream, especially if they do not support 3D MVC.

However, in MrMC, I get a failure to play regardless of which acceleration method is used:

- Under VideoToolbox (AVFoundation is disabled) : File opened, MrMC asks for a 3D playback method, and then never loads a new image. That is, it still shows the file menu. When the back button in the menu is pressed a few times, the playback begins to load in a very glitchy way (the playback bar starts flashing on-screen). Audio does not play.
- Under AVFoundation (VideoToolbox is disabled) : File opened, MrMC asks for a 3D playback method, and then displays a black screen. Audio plays in full. In addition, MrMC is able to generate a thumbnail of the file.

I can provide a sample MKV (10 seconds, 57MB) via PM if it's helpful.

Not sure if this is a known issue, and I'm mostly raising it because beyond that small flaw, MrMC is pretty much the gold (platinum?) standard for a media player in iOS for me.

Try disabling all acceleration and try it again. It worked for me on tvOS and iOS.

That seems like a really messy workaround given that you'd have to disable hardware acceleration across the board, or at least every time you wanna watch a movie that has a 3D MVC track. I do appreciate the suggestion tho.

debuglog with acceleration enabled.

mukiex wrote: 15 Oct 2018, 00:46 That seems like a really messy workaround given that you'd have to disable hardware acceleration across the board, or at least every time you wanna watch a movie that has a 3D MVC track. I do appreciate the suggestion tho.

It's the only way for it to work currently.

@davilla

1. I'm really sorry for missing your follow-up and not sending a debug
2. THANK YOU! I haven't opened MrMC in a while but today I opened it up on the new iPad Mini and all the MVC stuff I've got opens without a hitch! Literally my whole library is now accessible on iOS! You guys are awesome!