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-rw-r--r--libavutil/sha1.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/sha1.h b/libavutil/sha1.h
index f00ecf0..fc5bf08 100644
--- a/libavutil/sha1.h
+++ b/libavutil/sha1.h
@@ -28,7 +28,7 @@ extern const int av_sha1_size;
struct AVSHA1;
void av_sha1_init(struct AVSHA1* context);
-void av_sha1_update(struct AVSHA1* context, uint8_t* data, unsigned int len);
+void av_sha1_update(struct AVSHA1* context, const uint8_t* data, unsigned int len);
void av_sha1_final(struct AVSHA1* context, uint8_t digest[20]);
#endif /* FFMPEG_SHA1_H */
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