Cleanup: some const-correctness.

[dcpomatic.git] / src / lib / video_filter_graph.h

diff --git a/src/lib/video_filter_graph.h b/src/lib/video_filter_graph.h
index d887e551bda8e586b5bcedd67137048b0ca6a019..e120fb467f02c1d0fd075fdb88a04a4bae8e991b 100644 (file)
--- a/src/lib/video_filter_graph.h
+++ b/src/lib/video_filter_graph.h
@@ -28,7 +28,7 @@ public:
        VideoFilterGraph (dcp::Size s, AVPixelFormat p, dcp::Fraction r);
 
        bool can_process (dcp::Size s, AVPixelFormat p) const;
-       std::list<std::pair<std::shared_ptr<Image>, int64_t>> process (AVFrame * frame);
+       std::list<std::pair<std::shared_ptr<const Image>, int64_t>> process (AVFrame * frame);
 
 protected:
        std::string src_parameters () const override;