avformat: Add prefix to get_codec_guid()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/riff.h b/libavformat/riff.h
index 15b07a66e0..ae5ecef4c5 100644
--- a/libavformat/riff.h
+++ b/libavformat/riff.h
@@ -110,7 +110,7 @@ static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
 
 int ff_get_guid(AVIOContext *s, ff_asf_guid *g);
 void ff_put_guid(AVIOContext *s, const ff_asf_guid *g);
-const ff_asf_guid *get_codec_guid(enum AVCodecID id, const AVCodecGuid *av_guid);
+const ff_asf_guid *ff_get_codec_guid(enum AVCodecID id, const AVCodecGuid *av_guid);
 
 enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);