Method
VipsImagepngsave_buffer
Declaration [src]
int
vips_pngsave_buffer (
VipsImage* in,
void** buf,
size_t* len,
...
)
Description [src]
As vips_pngsave(), but save to a memory buffer.
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.
::: tip “Optional arguments”
* compression: gint, compression level
* interlace: gboolean, interlace image
* filter: VipsForeignPngFilter, row filter flag(s)
* palette: gboolean, enable quantisation to 8bpp palette
* Q: gint, quality for 8bpp quantisation
* dither: gdouble, amount of dithering for 8bpp quantization
* bitdepth: gint, set write bit depth to 1, 2, 4, 8 or 16
* effort: gint, quantisation CPU effort
::: seealso
vips_pngsave(), 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 |
|