HEIF is made by MPEG. HEIG is extensible (see AVIF fusing the AV1 royalty-free codec). Also an application format (MIAF) will ensure interoperability.
While waiting for native browser support, some js implementation would do the job.
What else?
Formats do not provide HW acceleration, implementations do. And so far there is zero HW accelerated HEIF implementations for the web.
You sure of that? Apple[1] and Qualcomm[2] might argue otherwise.
[1] https://developer.apple.com/videos/play/wwdc2017/513/
[2] https://techreport.com/news/34306/qualcomm-snapdragon-855-sp...
HEIF is made by MPEG. HEIG is extensible (see AVIF fusing the AV1 royalty-free codec). Also an application format (MIAF) will ensure interoperability.
While waiting for native browser support, some js implementation would do the job.
What else?