Cleanup: Alembic, move the C++ code to `blender::io::alembic` namespace

This commit only moves code into the `blender::io::alembic` namespace,
it does not move `static` functions into an anonymous namespace.

No functional changes.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/io/alembic/intern/abc_axis_conversion.h b/source/blender/io/alembic/intern/abc_axis_conversion.h
index 7fde0e92ea4..734c5ca01c9 100644
--- a/source/blender/io/alembic/intern/abc_axis_conversion.h
+++ b/source/blender/io/alembic/intern/abc_axis_conversion.h
@@ -30,6 +30,10 @@ struct Object;
 #  define ABC_INLINE static inline
 #endif
 
+namespace blender {
+namespace io {
+namespace alembic {
+
 /* TODO(kevin): for now keeping these transformations hardcoded to make sure
  * everything works properly, and also because Alembic is almost exclusively
  * used in Y-up software, but eventually they'll be set by the user in the UI
@@ -97,3 +101,7 @@ void create_transform_matrix(Object *obj,
                              float r_transform_mat[4][4],
                              AbcMatrixMode mode,
                              Object *proxy_from);
+
+}  // namespace alembic
+}  // namespace io
+}  // namespace blender
\ No newline at end of file