diff --git a/libavfilter/audio.c b/libavfilter/audio.c
index 7d87e9e9a0..308d04cf43 100644
--- a/libavfilter/audio.c
+++ b/libavfilter/audio.c
@@ -51,8 +51,8 @@ AVFrame *ff_default_get_audio_buffer(AVFilterLink *link, int nb_samples)
     int align = av_cpu_max_align();
 
     if (!li->frame_pool) {
-        li->frame_pool = ff_frame_pool_audio_init(av_buffer_allocz, channels,
-                                                  nb_samples, link->format, align);
+        li->frame_pool = ff_frame_pool_audio_init(channels, nb_samples,
+                                                  link->format, align);
         if (!li->frame_pool)
             return NULL;
     } else {
@@ -71,8 +71,8 @@ AVFrame *ff_default_get_audio_buffer(AVFilterLink *link, int nb_samples)
             pool_format != link->format || pool_align != align) {
 
             ff_frame_pool_uninit(&li->frame_pool);
-            li->frame_pool = ff_frame_pool_audio_init(av_buffer_allocz, channels,
-                                                      nb_samples, link->format, align);
+            li->frame_pool = ff_frame_pool_audio_init(channels, nb_samples,
+                                                      link->format, align);
             if (!li->frame_pool)
                 return NULL;
         }
diff --git a/libavfilter/framepool.c b/libavfilter/framepool.c
index 15ea66cdc6..d0d8dceffa 100644
--- a/libavfilter/framepool.c
+++ b/libavfilter/framepool.c
@@ -49,8 +49,7 @@ struct FFFramePool {
 
 };
 
-av_cold FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(size_t size),
-                                              int width, int height,
+av_cold FFFramePool *ff_frame_pool_video_init(int width, int height,
                                               enum AVPixelFormat format,
                                               int align)
 {
@@ -97,7 +96,10 @@ av_cold FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(size_t size)
     for (i = 0; i < 4 && sizes[i]; i++) {
         if (sizes[i] > SIZE_MAX - align)
             goto fail;
-        pool->pools[i] = av_buffer_pool_init(sizes[i] + align, alloc);
+        pool->pools[i] = av_buffer_pool_init(sizes[i] + align,
+                                             CONFIG_MEMORY_POISONING
+                                                 ? NULL
+                                                 : av_buffer_allocz);
         if (!pool->pools[i])
             goto fail;
     }
@@ -109,8 +111,7 @@ fail:
     return NULL;
 }
 
-av_cold FFFramePool *ff_frame_pool_audio_init(AVBufferRef* (*alloc)(size_t size),
-                                              int channels, int nb_samples,
+av_cold FFFramePool *ff_frame_pool_audio_init(int channels, int nb_samples,
                                               enum AVSampleFormat format,
                                               int align)
 {
@@ -137,7 +138,8 @@ av_cold FFFramePool *ff_frame_pool_audio_init(AVBufferRef* (*alloc)(size_t size)
 
     if (pool->linesize[0] > SIZE_MAX - align)
         goto fail;
-    pool->pools[0] = av_buffer_pool_init(pool->linesize[0] + align, alloc);
+    pool->pools[0] = av_buffer_pool_init(pool->linesize[0] + align,
+                                         av_buffer_allocz);
     if (!pool->pools[0])
         goto fail;
 
diff --git a/libavfilter/framepool.h b/libavfilter/framepool.h
index 2bef1fe0b6..f18d3c1536 100644
--- a/libavfilter/framepool.h
+++ b/libavfilter/framepool.h
@@ -35,17 +35,13 @@ typedef struct FFFramePool FFFramePool;
 /**
  * Allocate and initialize a video frame pool.
  *
- * @param alloc a function that will be used to allocate new frame buffers when
- * the pool is empty. May be NULL, then the default allocator will be used
- * (av_buffer_alloc()).
  * @param width width of each frame in this pool
  * @param height height of each frame in this pool
  * @param format format of each frame in this pool
  * @param align buffers alignment of each frame in this pool
  * @return newly created video frame pool on success, NULL on error.
  */
-FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(size_t size),
-                                      int width,
+FFFramePool *ff_frame_pool_video_init(int width,
                                       int height,
                                       enum AVPixelFormat format,
                                       int align);
@@ -53,17 +49,13 @@ FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(size_t size),
 /**
  * Allocate and initialize an audio frame pool.
  *
- * @param alloc a function that will be used to allocate new frame buffers when
- * the pool is empty. May be NULL, then the default allocator will be used
- * (av_buffer_alloc()).
  * @param channels channels of each frame in this pool
  * @param nb_samples number of samples of each frame in this pool
  * @param format format of each frame in this pool
  * @param align buffers alignment of each frame in this pool
  * @return newly created audio frame pool on success, NULL on error.
  */
-FFFramePool *ff_frame_pool_audio_init(AVBufferRef* (*alloc)(size_t size),
-                                      int channels,
+FFFramePool *ff_frame_pool_audio_init(int channels,
                                       int samples,
                                       enum AVSampleFormat format,
                                       int align);
diff --git a/libavfilter/video.c b/libavfilter/video.c
index 3f23a12c07..2727b2c28d 100644
--- a/libavfilter/video.c
+++ b/libavfilter/video.c
@@ -71,10 +71,7 @@ AVFrame *ff_default_get_video_buffer2(AVFilterLink *link, int w, int h, int alig
     }
 
     if (!li->frame_pool) {
-        li->frame_pool = ff_frame_pool_video_init(CONFIG_MEMORY_POISONING
-                                                     ? NULL
-                                                     : av_buffer_allocz,
-                                                  w, h, link->format, align);
+        li->frame_pool = ff_frame_pool_video_init(w, h, link->format, align);
         if (!li->frame_pool)
             return NULL;
     } else {
@@ -89,10 +86,7 @@ AVFrame *ff_default_get_video_buffer2(AVFilterLink *link, int w, int h, int alig
             pool_format != link->format || pool_align != align) {
 
             ff_frame_pool_uninit(&li->frame_pool);
-            li->frame_pool = ff_frame_pool_video_init(CONFIG_MEMORY_POISONING
-                                                         ? NULL
-                                                         : av_buffer_allocz,
-                                                      w, h, link->format, align);
+            li->frame_pool = ff_frame_pool_video_init(w, h, link->format, align);
             if (!li->frame_pool)
                 return NULL;
         }