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gifload reports first delay, not last

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many GIFs have a long delay on the final frame
This commit is contained in:
John Cupitt 2017-11-22 11:12:11 +00:00
parent 7aed4c04e7
commit c008bdddca
1 changed files with 8 additions and 2 deletions
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10
libvips/foreign/gifload.c
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@ -120,8 +120,10 @@ typedef struct _VipsForeignLoadGif {
gboolean has_colour;
/* Delay in 1/100ths of a second. We only track a single delay
* value for the whole file.
* value for the whole file, and we report the first delay we see. Some
* GIFs have a long delay on the final frame.
*/
gboolean has_delay;
int delay;
/* Number of times to loop the animation.
@ -571,7 +573,11 @@ vips_foreign_load_gif_page( VipsForeignLoadGif *gif, VipsImage *out )
gif->transparency );
}
gif->delay = extension[2] | (extension[3] << 8);
if( !gif->has_delay ) {
gif->has_delay = TRUE;
gif->delay = extension[2] |
(extension[3] << 8);
}
}
/* The 11-byte NETSCAPE extension.