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-rw-r--r--libavformat/avformat.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 2bc1df9884..3520506038 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1286,14 +1286,14 @@ int avformat_network_deinit(void);
* if f is non-NULL, returns the next registered input format after f
* or NULL if f is the last one.
*/
-AVInputFormat *av_iformat_next(AVInputFormat *f);
+AVInputFormat *av_iformat_next(const AVInputFormat *f);
/**
* If f is NULL, returns the first registered output format,
* if f is non-NULL, returns the next registered output format after f
* or NULL if f is the last one.
*/
-AVOutputFormat *av_oformat_next(AVOutputFormat *f);
+AVOutputFormat *av_oformat_next(const AVOutputFormat *f);
/**
* Allocate an AVFormatContext.