lavu/spherical: Make AVSphericalMapping pointer parameter const.

Reflects the actual code and silences a gcc warning:
ffprobe.c:1797:42: warning: passing argument 1 of 'av_spherical_tile_bounds' discards 'const' qualifier from pointer target type

1 files changed, 1 insertions, 1 deletions

diff --git a/libavutil/spherical.h b/libavutil/spherical.h
index db9bdc0be5..f4e0d60966 100644
--- a/libavutil/spherical.h
+++ b/libavutil/spherical.h
@@ -202,7 +202,7 @@ AVSphericalMapping *av_spherical_alloc(size_t *size);
  * @param right  Pixels from the right edge.
  * @param bottom Pixels from the bottom edge.
  */
-void av_spherical_tile_bounds(AVSphericalMapping *map,
+void av_spherical_tile_bounds(const AVSphericalMapping *map,
                               size_t width, size_t height,
                               size_t *left, size_t *top,
                               size_t *right, size_t *bottom);