allow container jxl as well

jcupitt · jcupitt · commit 6a53ab47e1e9 · 2021-10-01T06:53:37.000+01:00
We were not testing the jxl signature for the two types of jxl. see jcupitt/vipsdisp#5 thanks Fraetor
diff --git a/libvips/foreign/jxlload.c b/libvips/foreign/jxlload.c
@@ -185,7 +185,8 @@ vips_foreign_load_jxl_is_a_source( VipsSource *source )
 	JxlSignature sig;
 
 	return( (p = vips_source_sniff( source, 12 )) &&
-		(sig = JxlSignatureCheck( p, 12 )) == JXL_SIG_CODESTREAM );
+		(sig = JxlSignatureCheck( p, 12 )) != JXL_SIG_INVALID &&
+		sig != JXL_SIG_NOT_ENOUGH_BYTES );
 }
 
 static VipsForeignFlags

Original file line number	Diff line number	Diff line change
`@@ -185,7 +185,8 @@ vips_foreign_load_jxl_is_a_source( VipsSource *source )`
`185`	`185`	`JxlSignature sig;`
`186`	`186`
`187`	`187`	`return( (p = vips_source_sniff( source, 12 )) &&`
`188`		`- (sig = JxlSignatureCheck( p, 12 )) == JXL_SIG_CODESTREAM );`
	`188`	`+ (sig = JxlSignatureCheck( p, 12 )) != JXL_SIG_INVALID &&`
	`189`	`+ sig != JXL_SIG_NOT_ENOUGH_BYTES );`
`189`	`190`	`}`
`190`	`191`
`191`	`192`	`static VipsForeignFlags`