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-rw-r--r--libswscale/swscale_internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 45cf738973..e904205475 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -278,4 +278,6 @@ static inline int fmt_depth(int fmt)
extern const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]);
extern const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]);
+extern const AVClass sws_context_class;
+
#endif /* FFMPEG_SWSCALE_INTERNAL_H */