From 2b0c2abd4d943c7c628a69c53ef524d3404cc0cb Mon Sep 17 00:00:00 2001
From: Dirk Farin <dirk.farin@gmail.com>
Date: Wed, 1 Nov 2023 20:00:32 +0100
Subject: [PATCH] add API to add custom compatible brands (#1001)

---
 libheif/file.h  | 1 +
 libheif/heif.cc | 7 +++++++
 libheif/heif.h  | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/libheif/file.h b/libheif/file.h
index 93405aada6..7213ce6134 100644
--- a/libheif/file.h
+++ b/libheif/file.h
@@ -83,6 +83,7 @@ class HeifFile
 
   Error get_compressed_image_data(heif_item_id ID, std::vector<uint8_t>* out_data) const;
 
+  std::shared_ptr<Box_ftyp> get_ftyp_box() { return m_ftyp_box; }
 
   std::shared_ptr<Box_infe> get_infe_box(heif_item_id imageID)
   {
diff --git a/libheif/heif.cc b/libheif/heif.cc
index 0990c46675..1df56ae7a8 100644
--- a/libheif/heif.cc
+++ b/libheif/heif.cc
@@ -1964,6 +1964,13 @@ struct heif_error heif_context_write(struct heif_context* ctx,
 }
 
 
+void heif_context_add_compatible_brand(struct heif_context* ctx,
+                                       heif_brand2 compatible_brand)
+{
+  ctx->context->get_heif_file()->get_ftyp_box()->add_compatible_brand(compatible_brand);
+}
+
+
 int heif_context_get_encoder_descriptors(struct heif_context* ctx,
                                          enum heif_compression_format format,
                                          const char* name,
diff --git a/libheif/heif.h b/libheif/heif.h
index 2cbfc8c3fd..7c2b4ebdf7 100644
--- a/libheif/heif.h
+++ b/libheif/heif.h
@@ -1700,6 +1700,10 @@ struct heif_error heif_context_write(struct heif_context*,
                                      struct heif_writer* writer,
                                      void* userdata);
 
+// Add a compatible brand that is now added automatically by libheif when encoding images (e.g. some application brands like 'geo1').
+LIBHEIF_API
+void heif_context_add_compatible_brand(struct heif_context* ctx,
+                                       heif_brand2 compatible_brand);
 
 // ----- encoder -----