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clearer docs for load from buffer 

add a note on buffer lifetime, see https://github.com/lovell/sharp/issues/151
This commit is contained in:
John Cupitt 2015-01-20 15:04:17 +00:00
parent 229636fc66
commit 3afbb51365
1 changed files with 22 additions and 12 deletions
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34
libvips/foreign/foreign.c
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@ -1719,6 +1719,9 @@ vips_tiffload( const char *filename, VipsImage **out, ... )
* Read a TIFF-formatted memory block into a VIPS image. Exactly as
* vips_tiffload(), but read from a memory source.
*
* You must not free the buffer while @out is active. The
* #VipsObject::postclose signal on @out is a good place to free.
*
* See also: vips_tiffload().
*
* Returns: 0 on success, -1 on error.
@ -1930,6 +1933,9 @@ vips_jpegload( const char *filename, VipsImage **out, ... )
* Read a JPEG-formatted memory block into a VIPS image. Exactly as
* vips_jpegload(), but read from a memory buffer.
*
* You must not free the buffer while @out is active. The
* #VipsObject::postclose signal on @out is a good place to free.
*
* See also: vips_jpegload().
*
* Returns: 0 on success, -1 on error.
@ -2114,12 +2120,9 @@ vips_jpegsave_mime( VipsImage *in, ... )
* @out: decompressed image
* @...: %NULL-terminated list of optional named arguments
*
* Optional arguments:
* Read a WebP file into a VIPS image.
*
*
* Read a webp file into a VIPS image.
*
* See also:
* See also: vips_image_new_from_file().
*
* Returns: 0 on success, -1 on error.
*/
@ -2143,7 +2146,13 @@ vips_webpload( const char *filename, VipsImage **out, ... )
* @out: image to write
* @...: %NULL-terminated list of optional named arguments
*
* See also:
* Read a WebP-formatted memory block into a VIPS image. Exactly as
* vips_webpload(), but read from a memory buffer.
*
* You must not free the buffer while @out is active. The
* #VipsObject::postclose signal on @out is a good place to free.
*
* See also: vips_webpload()
*
* Returns: 0 on success, -1 on error.
*/
@ -2177,7 +2186,7 @@ vips_webpload_buffer( void *buf, size_t len, VipsImage **out, ... )
*
* @Q: quality factor
*
* See also:
* See also: vips_webpload(), vips_image_write_to_file().
*
* Returns: 0 on success, -1 on error.
*/
@ -2205,7 +2214,7 @@ vips_webpsave( VipsImage *in, const char *filename, ... )
*
* @Q: JPEG quality factor
*
* See also:
* See also: vips_webpsave().
*
* Returns: 0 on success, -1 on error.
*/
@ -2246,7 +2255,9 @@ vips_webpsave_buffer( VipsImage *in, void **buf, size_t *len, ... )
*
* @Q: quality factor
*
* See also:
* As vips_webpsave(), but save as a mime webp on stdout.
*
* See also: vips_webpsave(), vips_image_write_to_file().
*
* Returns: 0 on success, -1 on error.
*/
@ -2443,9 +2454,8 @@ vips_pngload( const char *filename, VipsImage **out, ... )
*
* Any ICC profile is read and attached to the VIPS image.
*
* Caution: on return only the header will have been read, the pixel data is
* not decompressed until the first pixel is read. Therefore you must not free
* @buf until you have read pixel data from @out.
* You must not free the buffer while @out is active. The
* #VipsObject::postclose signal on @out is a good place to free.
*
* See also: vips_pngload().
*