diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
index 5f2ed0e4b3..76a46f6678 100644
--- a/libavfilter/buffersink.c
+++ b/libavfilter/buffersink.c
@@ -125,6 +125,7 @@ int attribute_align_arg av_buffersink_get_samples(AVFilterContext *ctx,
     return get_frame_internal(ctx, frame, 0, nb_samples);
 }
 
+#if FF_API_NEXT
 AVBufferSinkParams *av_buffersink_params_alloc(void)
 {
     static const int pixel_fmts[] = { AV_PIX_FMT_NONE };
@@ -144,6 +145,7 @@ AVABufferSinkParams *av_abuffersink_params_alloc(void)
         return NULL;
     return params;
 }
+#endif
 
 static av_cold int common_init(AVFilterContext *ctx)
 {
diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h
index 3c846bb527..2ec821c685 100644
--- a/libavfilter/buffersink.h
+++ b/libavfilter/buffersink.h
@@ -59,6 +59,7 @@ int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flag
  */
 #define AV_BUFFERSINK_FLAG_NO_REQUEST 2
 
+#if FF_API_NEXT
 /**
  * Struct to use for initializing a buffersink context.
  */
@@ -71,6 +72,7 @@ typedef struct AVBufferSinkParams {
  *
  * Must be freed with av_free().
  */
+attribute_deprecated
 AVBufferSinkParams *av_buffersink_params_alloc(void);
 
 /**
@@ -89,7 +91,9 @@ typedef struct AVABufferSinkParams {
  *
  * Must be freed with av_free().
  */
+attribute_deprecated
 AVABufferSinkParams *av_abuffersink_params_alloc(void);
+#endif
 
 /**
  * Set the frame size for an audio buffer sink.