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-rw-r--r--libavutil/pixdesc.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h
index 1042e1ed45..0947fd1f88 100644
--- a/libavutil/pixdesc.h
+++ b/libavutil/pixdesc.h
@@ -233,5 +233,11 @@ enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc);
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt,
int *h_shift, int *v_shift);
+/**
+ * @return number of planes in pix_fmt, a negative AVERROR if pix_fmt is not a
+ * valid pixel format.
+ */
+int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt);
+
#endif /* AVUTIL_PIXDESC_H */