Method

VipsImagedzsave_buffer

Declaration [src] 

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

Description [src]

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.

Optional arguments

  • basename: gchararray, base part of name
  • layout: VipsForeignDzLayout, directory layout convention
  • suffix: gchararray, 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: gchararray, id for IIIF properties
  • Q: gint, quality factor

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.