remove black borders with Handbrake

[whitelighter]

I'm having difficulty removing black borders from an mp4 with Handbrake. I'm a novice. I think I want the image to stretch/distort rather than crop, but I'm also wondering if it thinks that the black borders on the top and bottom are part of the picture, so maybe a crop would work better? Bizarrely, in my first attempt, the black borders had shrunk to an acceptable width, but later when I re-opened it, it had reverted back to wide borders. I've attached an image of the dimensions tab. Can someone tell me what values to enter?


[Attachment 92497 - Click to enlarge]

[davexnet]

It looks like you have a 16:9 video inside a 4:3 frame.
If you allow it to crop, you can either encode as-is, 1440x812, or resize it down slightly to 720p - 1280x720
or resize it up to 1920x1080

[whitelighter]

Thanks. I tried all three of those settings, but there's still a thin black border at the top and bottom.

[davexnet]

Thanks. I tried all three of those settings, but there's still a thin black border at the top and bottom.

???

Then increase the crop amount by 2 pixels top and bottom by setting cropping to "custom" and adjusting the sizes manually

[whitelighter]

Ok thanks, problem solved.

[Gloster]

Also ffmpeg can be used :
ffmpeg -ss 150 -i "yourvideo.mp4" -vframes 100 -vf cropdetect -f null -
Output :

[Parsed_cropdetect_0 @ 0x558ad3259280] x1:10 x2:1089 y1:0 y2:607 w:1072 h:608 x:14 y:0 pts:33 t:0.033000 crop=1072:608:14:0

I must confess, Handbreake did to much for me, I prefer all to understand what to do with the respective video.
[Parsed_cropdetect_0 @ 0x558ad3259280] x1:10 x2:1089 y1:0 y2:607 w:1072 h:608 x:14 y:0 pts:50 t:0.050000 crop=1072:608:14:0
[Parsed_cropdetect_0 @ 0x558ad3259280] x1:10 x2:1089 y1:0 y2:607 w:1072 h:608 x:14 y:0 pts:67 t:0.067000 crop=1072:608:14:0
[Parsed_cropdetect_0 @ 0x558ad3259280] x1:10 x2:1089 y1:0 y2:607 w:1072 h:608 x:14 y:0 pts:83 t:0.083000 crop=1072:608:14:0

The respective ffmpeg command :

ffmpeg -i yourvideo.mp4 -filter:v "crop=1072:608:14:0" -c:a copy out.mkv

I prefer ffmpeg, and know what I do.