Fixing 1918 x 1080 X265 files that an older TV can't play

[CitizenJohnJohn]

I have some files that are 1918x1080 x265 MKV

My Samsung TV can't play these files, but it can play some 1920x1080 x265 MKV.

With Avidemux 2.7 I can configure the MKV Muxer to 'Force display width' to 1920. This turns these files into 1920x1080 x265 MKVs my TV can play.

However, that's quite time-consuming as it involves re-rendering each file.

Is there any way to quickly, say, add a 2-pixel wide black border to one side of the frame, so I end up with playable 1920x1080 files?

Thanks in advance for any advice!

[davexnet]

Do you have Windows 7 or newer? Are you able to play videos on the PC and cast them to the TV?
I can do this on my LG TV, your Samsung may be different

[sneaker]

https://ffmpeg.org/ffmpeg-bitstream-filters.html#hevc_005fmetadata
This filter can alter HEVC cropping. But are you sure it's the 1920 vs 1918 difference causing the problem?

[CitizenJohnJohn]

Do you have Windows 7 or newer? Are you able to play videos on the PC and cast them to the TV?
I can do this on my LG TV, your Samsung may be different

A bit of Googling reveals there might be an app for that for Samsung TVs, so I'll try it — thanks!

The ultimate objective is to end up with the files on my NAS so the kids can watch them, though.