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add delay support

This commit is contained in:
John Cupitt 2018-10-30 15:42:11 +00:00
parent f2ab0ab374
commit bb1bcfbbf0
1 changed files with 10 additions and 3 deletions
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13
libvips/foreign/vips2webp.c
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@ -10,6 +10,7 @@
* - add metadata write
* 29/10/18
* - target libwebp 0.5+ and remove some ifdefs
* - add animated webp write
*/
/*
@ -342,9 +343,13 @@ write_webp_anim( VipsWebPWrite *write, VipsImage *image, int page_height )
int top;
int timestamp_ms;
/* FIXME get delay
/* 100ms is the webp default.
*/
delay = 16;
delay = 100;
if( vips_image_get_typeof( image, "gif-delay" ) &&
vips_image_get_int( image, "gif-delay", &delay ) )
;
delay = VIPS_CLIP( 0, delay, 100000 );
if( !WebPAnimEncoderOptionsInit( &anim_config ) ) {
vips_error( "vips2webp",
@ -427,7 +432,9 @@ write_webp( VipsWebPWrite *write, VipsImage *image )
&page_height ) )
;
if( page_height > 0 )
if( page_height > 0 &&
page_height < image->Ysize &&
image->Ysize % page_height == 0 )
return( write_webp_anim( write, image, page_height ) );
else
return( write_webp_single( write, image ) );