[FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS

[Bouke / Videotoolshed]

> On 3 Nov 2022, at 22:55, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 
> Am Do., 3. Nov. 2022 um 20:18 Uhr schrieb Bartosz Trzebuchowski
> <bartek at trzebuchowski.com>:
> 
>> 1. How can I convert 16:9 movies to 2.35:1? My projector can’t
>> scale down and 16:9 movies run outside my 2.35:1 canvas at
>> the top and the bottom. I need to black out top and bottom so
>> only 2.35:1 is visible.
> 
> Use the crop filter:
> https://ffmpeg.org/ffmpeg-filters.html#crop
> 
> Carl Eugen
> _______________________________________________

Definitely not crop, that will remove part of the image.
Instead, pillarbox it, using the pad filter, if needed in combo with scale.

https://ffmpeg.org/ffmpeg-filters.html#pad

Bouke