Closed legoktm closed 1 month ago
claims that if you install
heif-gdk-pixbuf
, EOG should automatically support it.
Installing this plus adding mime entries for image/heif
and image/avif
for EOG allowed me to open both example.heic and example.avif from https://github.com/strukturag/libheif/tree/master/examples
Need to see if we also can support: image/heif-sequence
And then whether we also need to support the HEIC mime: image/heic
, image/heic-sequence
Need to see if we also can support:
image/heif-sequence
Found (copyrighted) test files at https://nokiatech.github.io/heif/examples.html; specifically https://nokiatech.github.io/heif/content/image_sequences/starfield_animation.heic which is image/heif-sequence
.
And then whether we also need to support the HEIC mime:
image/heic
,image/heic-sequence
https://www.iana.org/assignments/media-types/image/heic says:
heif: High efficiency image file containing one or more image
items using any coding format
heic: High efficiency image file conforming to the requirements
for the 'heic', 'heix', 'heim', or 'heis' brand (and hence
containing one or more HEVC coded image items). (A brand in the
file header identifies a specific profile of a more general
format.)
And the codes are explained at https://github.com/strukturag/libheif/issues/83#issuecomment-421427091. I can't find any sample files, but I think adding the heic mime subtype is most likely going to be harmless.
libheif doesn't support sequence files yet (https://github.com/strukturag/libheif/issues/57), but EOG does display the first frame. I think that is a better experience than nothing, but there's no indication AFAIS that it is a sequence file and what the user is seeing is incomplete.
I'm also not sure how prevalent sequence files are.
Description
HEIC files are commonly generated by Apple devices - see https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format
How will this impact SecureDrop users?
How would this affect the SecureDrop Workstation threat model?
User Stories
Notes
https://superuser.com/questions/1252004/how-can-i-view-heic-photos-on-linux claims that if you install
heif-gdk-pixbuf
, EOG should automatically support it.