Translators: Add an AVIF translator

This translator only supports still images for now, and supports both
decoding and encoding.

Encoding support has been tested only with aom, rav1e doesn’t build on
Haiku yet, see https://github.com/haikuports/haikuports/pull/5534 for
one of the missing dependencies.

Change-Id: I716f4b862ed316b89b227bfed38072d72074201f
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3040
Reviewed-by: waddlesplash <[email protected]>
Reviewed-by: Jérôme Duval <[email protected]>
Tested-by: Commit checker robot <[email protected]>

build/jam/BuildFeatures

@@ -650,6 +650,26 @@ if [ IsPackageAvailable libwebp_devel ] {
 }
 
 
+# libavif
+if [ IsPackageAvailable libavif_devel ] {
+	if $(HAIKU_PACKAGING_ARCH) = x86_64 {
+		ExtractBuildFeatureArchives libavif :
+			file: base libavif
+				runtime: lib
+			file: devel libavif_devel
+				depends: base
+				library: $(developLibDir)/libavif.so.12
+				headers: $(developHeadersDir) $(developHeadersDir)/avif
+			;
+		EnableBuildFeatures libavif ;
+	} else {
+		unavailableBuildFeatures += libavif ;
+	}
+} else {
+	unavailableBuildFeatures += libavif ;
+}
+
+
 # live555
 if [ IsPackageAvailable live555_devel ] {
 	ExtractBuildFeatureArchives live555 :

build/jam/images/definitions/regular

@@ -124,6 +124,7 @@ SYSTEM_ADD_ONS_ACCELERANTS += [ FFilterByBuildFeatures
 ] ;
 
 SYSTEM_ADD_ONS_TRANSLATORS += [ FFilterByBuildFeatures
+	AVIFTranslator@libavif
 	BMPTranslator
 	EXRTranslator@openexr
 	GIFTranslator