Re:Modern codecs like AV1 can bring better quality video to ...
by conradev on Sunday July 15, 2018 @11:02PM
(#17538471)
Your iPhone has hardware support for encoding and decoding HEVC, too!
Re:Modern codecs like AV1 can bring better quality video to ...
by clouddrover on Monday July 16, 2018 @06:25AM
(#17540118)
Yes, but my point was don't underestimate software decoders on modern mobile devices. As an experiment, I left a local 720p30 VP9 video with Opus audio running in a loop in VLC on my iPhone 7 for 3 hours. Both video and audio are being decoded in software.
My battery started at 90% and at the end of three hours it was at 55%. I think that's pretty good for software decoding.
I'm not sure which VP9 decoder VLC uses on iOS. I presume it's ffvp9:
https://blogs.gnome.org/rbultje/2014/02/22/the-worlds-fastes...
I have an iPhone 7 which has no hardware VP9 support but VP9 video works well at 720p in VLC. I'm sure the battery won't last as long as playing H.264 video in hardware but I wouldn't call VP9 playback impractical.