Question Why compressed video does not show bottom darker area?

[smalltech]

Hello,

I followed this guide

View: https://www.youtube.com/watch?v=4nn2yT8OGpE
to compress my video successfully but the bottom dark area is missing in my compressed video.

Screenshot of my video, before compress is left screenshot, after compress is right screenshot

https://imgur.com/lJDwQbI

View: https://i.imgur.com/lJDwQbI.png

My video is shot using phone, in the original video the bottom area is darker because no light at the bottom area, it is not a complete solid black.

Question: Why the bottom darker black area disappeared after compress? (I redo everything for a second time and it is still the same result)

I tried to compress my other video and I see the after compress video looks exactly the same as the before compress video.

I guess some settings in this guide

View: https://www.youtube.com/watch?v=4nn2yT8OGpE
will auto make the bottom black area disappear and auto enlarge the area that are not black but I am not sure.

Thank you

 

[BFG-9000]

Handbrake by default attempts to auto-crop out black bars.

Of note, if that is a 13 megapixel camera at 4208 x 3120, then rescaling to 1080p30 preset will reduce quality more than expected unless some cropping is applied.

 

[smalltech]

Handbrake by default attempts to auto-crop out black bars.

Of note, if that is a 13 megapixel camera at 4208 x 3120, then rescaling to 1080p30 preset will reduce quality more than expected unless some cropping is applied.

How to prevent Handbrake auto crop out black bars?

Do you know how to have smaller file size for videos recorded using Samsung Galaxy A32 5G?

Thanks

 

[BFG-9000]

As with all other settings in Handbrake when you don't like the preset defaults, it's under the "Custom" button.

Your phone can record videos directly in 1080p30 so I would suggest starting with that. If the filesize is still too large, then Handbrake can re-encode it to lower quality/higher compression without as much quality loss as it would have when also resizing/scaling.

 

[smalltech]

As with all other settings in Handbrake when you don't like the preset defaults, it's under the "Custom" button.

Your phone can record videos directly in 1080p30 so I would suggest starting with that. If the filesize is still too large, then Handbrake can re-encode it to lower quality/higher compression without as much quality loss as it would have when also resizing/scaling.

Where is the "Custom" button?

Unable to see any button labelled as Custom https://handbrake.fr/docs/en/latest/advanced/custom-presets.html

 

[BFG-9000]

Looks like they moved it to the "Dimensions" tab

It's the selection for Cropping which is Automatic by default