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-rw-r--r--libavcodec/avcodec.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index a70d8adb90..e251db4c9a 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -4143,7 +4143,7 @@ void av_log_missing_feature(void *avc, const char *feature, int want_sample);
* a pointer to an AVClass struct
* @param[in] msg string containing an optional message, or NULL if no message
*/
-void av_log_ask_for_sample(void *avc, const char *msg, ...);
+void av_log_ask_for_sample(void *avc, const char *msg, ...) av_printf_format(2, 3);
/**
* Register the hardware accelerator hwaccel.