| Overview |  |
Copyright © 2009-2021 Marc Worrell
Authors: Marc Worrell (marc@worrell.nl).
| calc_size/1 | |
| can_generate_preview/1 | Check if we can generate a preview image of the given mime type. |
| cmd_args/3 | Map filters to commandline options. |
| convert/4 | Convert the Infile to an outfile with a still image using the filters. |
| convert/5 | |
| out_mime/2 | Return the preferred mime type of the image generated by resizing an image of a certain type and size. |
| out_mime/3 | Determine the output mime type, after expanding optional mediaclass arguments. |
| size/3 | Calculate the size of the resulting image. |
| string2filter/2 | Map the list of known filters and known args to atoms. |
calc_size(S) -> any()
can_generate_preview(B::binary() | string()) -> boolean()
Check if we can generate a preview image of the given mime type
cmd_args(FileProps, Filters, OutMime) -> any()
Map filters to commandline options
convert(InFile::file:filename_all(), OutFile::file:filename_all(), Filters::list(), Context::#context{}) -> ok | {error, term()}
Convert the Infile to an outfile with a still image using the filters.
convert(InFile, MediumFilename, OutFile, Filters, Context) -> any()
out_mime(InMime::binary(), Options::list()) -> {OutMime::binary(), Extension::string()}
Return the preferred mime type of the image generated by resizing an image of a certain type and size.
out_mime(Mime, Options, Context) -> any()
Determine the output mime type, after expanding optional mediaclass arguments.
size(Props::MediaRef, Filters, Context) -> {size, Width, Height, ResizedMime} | {error, Reason}
Calculate the size of the resulting image.
string2filter(Filter::string(), Where::string()) -> {ok, tuple() | atom()} | {error, term()}
Map the list of known filters and known args to atoms. Used when mapping preview urls back to filter args.
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