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-rw-r--r--libswresample/swresample.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libswresample/swresample.h b/libswresample/swresample.h
index e4bbebae16..4b8b0451ee 100644
--- a/libswresample/swresample.h
+++ b/libswresample/swresample.h
@@ -211,6 +211,10 @@ struct SwrContext *swr_alloc(void);
/**
* Initialize context after user parameters have been set.
+ * @note The context must be configured using the AVOption API.
+ *
+ * @see av_opt_set_int()
+ * @see av_opt_set_dict()
*
* @param[in,out] s Swr context to initialize
* @return AVERROR error code in case of failure.