Method

VipsImagedzsave_buffer

Declaration [src] 

int
vips_dzsave_buffer (
  VipsImage* in,
  void** buf,
  size_t* len,
  ...
)

Description [src]

Optional arguments:

  • basename: %gchar base part of name
  • layout: VipsForeignDzLayout directory layout convention
  • suffix: %gchar suffix for tiles
  • overlap: %gint set tile overlap
  • tile_size: %gint set tile size
  • background: VipsArrayDouble background colour
  • depth: VipsForeignDzDepth how deep to make the pyramid
  • centre: %gboolean centre the tiles
  • angle: VipsAngle rotate the image by this much
  • container: VipsForeignDzContainer set container type
  • compression: %gint zip deflate compression level
  • region_shrink: VipsRegionShrink how to shrink each 2x2 region.
  • skip_blanks: %gint skip tiles which are nearly equal to the background
  • id: %gchar id for IIIF properties
  • Q: %gint, quality factor

As vips_dzsave(), but save to a memory buffer.

Output is always in a zip container. Use basename to set the name of the directory that the zip will create when unzipped.

The address of the buffer is returned in buf, the length of the buffer in len. You are responsible for freeing the buffer with g_free() when you are done with it.

See also: vips_dzsave(), vips_image_write_to_file().

This method is not directly available to language bindings.

Parameters

buf

Type: An array of guint8

Return output buffer here.

The length of the array is specified in the len argument.
The data is owned by the caller of the method.
len

Type: size_t*

Return output length here.

The data is owned by the caller of the method.
...

Type: 

NULL-terminated list of optional named arguments.

Return value

Type: int

0 on success, -1 on error.