The codec that the Web browser uses for encoding.
"vp8"
"h264"
"h265"
"vp9"
"av1"
Safari 12.1 or earlier does not support the VP8 codec.
The codec that the Web browser uses for encoding.
"vp8": Use VP8 for encoding."h264": Use H.264 for encoding."h265": Use H.265 for encoding."vp9": (Beta) Use VP9 for encoding."av1": Reserved, unavailable now.