diff --git a/libavfilter/buffersrc.h b/libavfilter/buffersrc.h
index 772eb25a3f..2bbbb8f2c4 100644
--- a/libavfilter/buffersrc.h
+++ b/libavfilter/buffersrc.h
@@ -53,13 +53,4 @@ enum {
 int av_buffersrc_add_ref(AVFilterContext *buffer_src,
                          AVFilterBufferRef *picref, int flags);
 
-/**
- * Add a buffer to the filtergraph s.
- *
- * @param buf buffer containing frame data to be passed down the filtergraph.
- * This function will take ownership of buf, the user must not free it.
- * A NULL buf signals EOF -- i.e. no more frames will be sent to this filter.
- */
-int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf);
-
 #endif /* AVFILTER_BUFFERSRC_H */
diff --git a/libavfilter/src_buffer.c b/libavfilter/src_buffer.c
index 15c30d6505..c6929f6486 100644
--- a/libavfilter/src_buffer.c
+++ b/libavfilter/src_buffer.c
@@ -294,12 +294,6 @@ int av_vsrc_buffer_add_video_buffer_ref(AVFilterContext *buffer_filter,
     return av_buffersrc_add_ref(buffer_filter, picref, 0);
 }
 
-int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf)
-{
-    return av_buffersrc_add_ref(s, buf, AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
-                                        AV_BUFFERSRC_FLAG_NO_COPY);
-}
-
 #if CONFIG_AVCODEC
 #include "avcodec.h"