Commit ebc34045 for libheif

commit ebc34045996acbca31a4cbdaa51cfa72ea1d3052
Author: Dirk Farin <dirk.farin@gmail.com>
Date:   Fri Feb 13 00:28:11 2026 +0100

    add heif_channel_unknown to emscripten and Go

diff --git a/go/heif/heif.go b/go/heif/heif.go
index ec319782..a557ca97 100644
--- a/go/heif/heif.go
+++ b/go/heif/heif.go
@@ -123,6 +123,7 @@ const (
 	ChannelFilterArray = C.heif_channel_filter_array
 	ChannelDepth       = C.heif_channel_depth
 	ChannelDisparity   = C.heif_channel_disparity
+	ChannelUnknown     = C.heif_channel_unknown
 )

 type ProgressStep C.enum_heif_progress_step
diff --git a/libheif/api/libheif/heif_emscripten.h b/libheif/api/libheif/heif_emscripten.h
index 46bec33a..9ae7366c 100644
--- a/libheif/api/libheif/heif_emscripten.h
+++ b/libheif/api/libheif/heif_emscripten.h
@@ -580,7 +580,8 @@ EMSCRIPTEN_BINDINGS(libheif) {
     .value("heif_channel_interleaved", heif_channel_interleaved)
     .value("heif_channel_filter_array", heif_channel_filter_array)
     .value("heif_channel_depth", heif_channel_depth)
-    .value("heif_channel_disparity", heif_channel_disparity);
+    .value("heif_channel_disparity", heif_channel_disparity)
+    .value("heif_channel_unknown", heif_channel_unknown);

     emscripten::enum_<heif_filetype_result>("heif_filetype_result")
     .value("heif_filetype_no", heif_filetype_no)