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revise heifsave docs

This commit is contained in:
John Cupitt 2021-05-01 14:48:06 +01:00
parent 1afde8b4fa
commit 5d9b60bcd5
1 changed files with 5 additions and 4 deletions
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9
libvips/foreign/heifsave.c
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@ -67,7 +67,7 @@
* * @Q: %gint, quality factor
* * @lossless: %gboolean, enable lossless encoding
* * @compression: #VipsForeignHeifCompression, write with this compression
* * @speed: %gint, CPU effort, 0 slowest - 8 fastest, AV1 compression only
* * @speed: %gint, encoding speed
* * @subsample_mode: #VipsForeignSubsample, chroma subsampling mode
*
* Write a VIPS image to a file in HEIF format.
@ -81,7 +81,8 @@
* if the target filename ends with ".avif", otherwise HEVC.
*
* Use @speed to control the CPU effort spent improving compression.
* This is currently only applicable to AV1 encoders, defaults to 5.
* This is currently only applicable to AV1 encoders. Defaults to 5, 0 is
* slowest, 9 is fastest.
*
* Chroma subsampling is normally automatically disabled for Q >= 90. You can
* force the subsampling mode with @subsample_mode.
@ -115,7 +116,7 @@ vips_heifsave( VipsImage *in, const char *filename, ... )
* * @Q: %gint, quality factor
* * @lossless: %gboolean, enable lossless encoding
* * @compression: #VipsForeignHeifCompression, write with this compression
* * @speed: %gint, CPU effort, 0 slowest - 8 fastest, AV1 compression only
* * @speed: %gint, encoding speed
* * @subsample_mode: #VipsForeignSubsample, chroma subsampling mode
*
* As vips_heifsave(), but save to a memory buffer.
@ -167,7 +168,7 @@ vips_heifsave_buffer( VipsImage *in, void **buf, size_t *len, ... )
* * @Q: %gint, quality factor
* * @lossless: %gboolean, enable lossless encoding
* * @compression: #VipsForeignHeifCompression, write with this compression
* * @speed: %gint, CPU effort, 0 slowest - 8 fastest, AV1 compression only
* * @speed: %gint, encoding speed
* * @subsample_mode: #VipsForeignSubsample, chroma subsampling mode
*
* As vips_heifsave(), but save to a target.