I have a 4096x4096 59.94fps VR Over-Under sequence in Premiere that I'm trying to export to play in the new Lenovo Mirage Solo standalone VR headset. The Mirage can handle up to 4096x4096 resolution, so I'd like to export at that resolution to maintain the highest quality. The problem is that there are frame size restrictions for exporting H.264 (the highest resolution Premiere/Media Encoder allows me is 2304x2304). HEVC H.265 allows for higher frame sizes, but the Mirage can't seem to play back H.265 even at relatively low bitrates. I tried doing Quicktime exports via ProRes proxy but got files with huge data rates that couldn't be played in the Mirage. Any recommendations for how to export (not in HEVC) a 4096x4096 59.94fps VR Over-Under sequence that can result in a moderate bitrate (maybe in the 20Mbps range)? Is there a way to export a Quicktime MP4 file that isn't encoded with H.264? Thanks for any help folks can provide.
Still having this issue? I'll ask engineering some advice on this matter and will advise you.
I believe that the Lenovo still faces the same hardware codec issues as most mobile devices. I believe you will be limited to a cinema 4K resolution. I would try 4096x2160 to maximize your video resolution. 20Mbps is going to going to be tough at that resolution. I would try a really long keyframe interval, upwards of 300 frames, and also enable two pass VBR encoding to maximize your quality. Be prepared for a slow export!
I wish I had better news for you, but until the Mirage adds HEVC support, you are facing the limitations of mobile hardware.
Immersive Media Lead, Adobe Pro Video Products Group