Commit ab29ff13 for libheif

commit ab29ff13c2f221d810fc5f3c7868ca1eec7e6b66
Author: Rob Smith <rob.smith@awayteam.co.uk>
Date:   Wed Feb 18 14:45:09 2026 +0000

    Update heif_enc.cc

    Added NOTE handling to VMT parser

diff --git a/examples/heif_enc.cc b/examples/heif_enc.cc
index 3cf64dd6..5bfcd784 100644
--- a/examples/heif_enc.cc
+++ b/examples/heif_enc.cc
@@ -2244,7 +2244,8 @@ int encode_vmt_metadata_track(heif_context* context, heif_track* visual_track,

   std::ifstream istr(vmt_metadata_file.c_str());

-  std::regex pattern(R"(^\s*(-?(\d|:|\.)*)\s*-->\s*(-?(\d|:|\.)*)?)");
+  std::regex pattern_cue(R"(^\s*(-?(\d|:|\.)*)\s*-->\s*(-?(\d|:|\.)*)?.*)");
+  std::regex pattern_note(R"(^\s*(NOTE).*)");

   static std::vector<uint8_t> prev_metadata;
   static std::optional<uint32_t> prev_ts;
@@ -2254,7 +2255,17 @@ int encode_vmt_metadata_track(heif_context* context, heif_track* visual_track,
   {
     std::smatch match;

-    if (!std::regex_match(line, match, pattern)) {
+    if (std::regex_match(line, match, pattern_note)) {
+      while (std::getline(istr, line)) {
+        if (line.empty()) {
+          break;
+        }
+      }
+
+      continue;
+    }
+
+    if (!std::regex_match(line, match, pattern_cue)) {
       continue;
     }