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-rw-r--r--libavutil/crc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/crc.h b/libavutil/crc.h
index d6b93c38d2..9798cf6a38 100644
--- a/libavutil/crc.h
+++ b/libavutil/crc.h
@@ -37,7 +37,7 @@ typedef enum {
int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
const AVCRC *av_crc_get_table(AVCRCId crc_id);
-uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length);
+uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length) av_pure;
#endif /* FFMPEG_CRC_H */