AVIF: fix settings chroma position for rav1e alpha images (#521)

strukturag · Jul 12, 2021 · 5fdba25 · 5fdba25
1 parent 487c3d8
commit 5fdba25
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/libheif/heif_encoder_rav1e.cc b/libheif/heif_encoder_rav1e.cc
@@ -520,6 +520,7 @@ struct heif_error rav1e_encode_image(void* encoder_raw, const struct heif_image*
 
   if (input_class == heif_image_input_class_alpha) {
     chromaSampling = RA_CHROMA_SAMPLING_CS420; // I can't seem to get RA_CHROMA_SAMPLING_CS400 to work right now, unfortunately
+    chromaPosition = RA_CHROMA_SAMPLE_POSITION_UNKNOWN; // TODO: set to CENTER when AV1 and rav1e supports this
   }
   else {
     switch (chroma) {