How to add sound in video with .hevc extention without changing its extension

Question

I use this code to encode a .hevc video:

ffmpeg -i video.mp4 -vf "scale=650:-1" -c:v libx264  -pix_fmt yuv420p -b:v 1500k -strict experimental -shortest -x264-params lossless=0  -movflags faststart -tag:v hvc1 -g 50000 -q 22  out.hevc

But It got only video and no sound at all.I tried to re-encode it to add sound but if only when I change its extension to .mp4 then I can add sound. How can i add sound and keep .hevc extension?

Answer 1

How to add sound in video with .hevc extention without changing its extension

You can't: .hevc is raw HEVC video only.