Method

VipsImagemagicksave_buffer

Declaration [src]

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

Description [src]

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

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

::: tip “Optional arguments” * quality: gint, quality factor * format: gchararray, format to save as * optimize_gif_frames: gboolean, apply GIF frames optimization * optimize_gif_transparency: gboolean, apply GIF transparency optimization * bitdepth: gint, number of bits per pixel

::: seealso vips_magicksave(), vips_image_write_to_file().

Parameters

buf 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 function.
len size_t*
 

Return output length here.

 The data is owned by the caller of the function.
... none
 

NULL-terminated list of optional named arguments.

Return value

Returns: int
 

0 on success, -1 on error.