eXeC64/imv

[Feature request] auto rotate based on EXIF data

Closed this issue · 2 comments

eoli3n commented

I used with feh this feature

     --auto-rotate                                             
             (optional feature, available in this build) Au‐   
             tomatically rotate images based on EXIF data.     
             Does not alter the image files.

Would be great to have it with imv

gnull commented

Looks like this functionality must already be in imv. According to Changelog it was implemented in 2016:

imv/CHANGELOG

Line 135 in eeaf5e3

* Honour EXIF rotation information in JPGs

It must be a bug if it's not working.

gnull commented

Imv can use either freeimage or libjpeg backends to open JPEG files. It will automatically rotate images when it's using freeimage, but not with libjpeg.

I don't know why, but Imv defaults to libjpeg when both are available.

@eoli3n, as a quick hack you can manually disable libjpeg and make it use freeimage. This will enable automatic image rotation. To do that, add these two flags to meson invocation (and follow the rest of building instructions from README like usual):

meson -D freeimage=enabled -D libjpeg=disabled build