Constructor
VipsImagewebpload
Declaration [src]
int
vips_webpload (
const char* filename,
VipsImage** out,
...
)
Description [src]
Optional arguments:
page: %gint, page (frame) to readn: %gint, load this many pagesscale: %gdouble, scale by this much on load
Read a WebP file into a VIPS image.
Use page to select a page to render, numbering from zero.
Use n to select the number of pages to render. The default is 1. Pages are
rendered in a vertical column, with each individual page aligned to the
left. Set to -1 to mean “until the end of the document”. Use vips_grid()
to change page layout.
Use scale to specify a scale-on-load factor. For example, 2.0 to double
the size on load. Animated webp images don’t support shrink-on-load, so a
further resize may be necessary.
The loader supports ICC, EXIF and XMP metadata.
See also: vips_image_new_from_file().
This constructor is not directly available to language bindings.
Parameters
filename-
Type:
const char*File to load.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string. out-
Type:
VipsImageDecompressed image.
The argument will be set by the function. The caller of the function takes ownership of the returned data, and is responsible for freeing it. ...-
Type:
NULL-terminated list of optional named arguments.