fix chroma plane height for alpha image in rav1e encoder plugin (#554)

strukturag · Aug 31, 2022 · 0020008 · 0020008
1 parent e995017
commit 0020008
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/libheif/heif_encoder_rav1e.cc b/libheif/heif_encoder_rav1e.cc
@@ -521,6 +521,7 @@ 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
+    yShift = 1;
   }
   else {
     switch (chroma) {