diff --git a/libavutil/staticpool.h b/libavutil/staticpool.h
new file mode 100644
index 0000000000..9c9b2784bc
--- /dev/null
+++ b/libavutil/staticpool.h
@@ -0,0 +1,117 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_STATICPOOL_H
+#define AVUTIL_STATICPOOL_H
+
+#include <stdatomic.h>
+#include "avassert.h"
+#include "mem.h"
+
+/**
+ * FF_STATICPOOL allocate memory without av_malloc if possible
+ * @param size must be 2^n between 64 and 4096
+ */
+#define FF_STATICPOOL_DECLARE(type, size)                                       \
+typedef struct type##_StaticPoolWrapper {                                       \
+    type        buf;                                                            \
+    unsigned    index;                                                          \
+    atomic_uint next;                                                           \
+} type##_StaticPoolWrapper;                                                     \
+                                                                                \
+static atomic_uint              type##_staticpool_next;                         \
+static atomic_uint              type##_staticpool_last;                         \
+static type##_StaticPoolWrapper type##_staticpool_table[size];                  \
+                                                                                \
+static type *type##_staticpool_malloc(void)                                     \
+{                                                                               \
+    unsigned val, index, serial, new_val;                                       \
+                                                                                \
+    av_assert0((size) >= 64 && (size) <= 4096 && !((size) & ((size) - 1)));     \
+                                                                                \
+    /* use serial, avoid spinlock */                                            \
+    /* acquire, so we don't get stalled table[index].next */                    \
+    val = atomic_load_explicit(&type##_staticpool_next, memory_order_acquire);  \
+    do {                                                                        \
+        index  = val & ((size) - 1);                                            \
+        serial = val & ~((size) - 1);                                           \
+        new_val = atomic_load_explicit(&type##_staticpool_table[index].next, memory_order_relaxed) | (serial + (size)); \
+    } while (!atomic_compare_exchange_strong_explicit(&type##_staticpool_next, &val, new_val, \
+                                                      memory_order_acquire, memory_order_acquire)); \
+                                                                                \
+    index = val & ((size) - 1);                                                 \
+    if (index)                                                                  \
+        return &type##_staticpool_table[index].buf;                             \
+                                                                                \
+    index = atomic_fetch_add_explicit(&type##_staticpool_last, 1, memory_order_relaxed) + 1; \
+    if (index < (size)) {                                                       \
+        type##_staticpool_table[index].index = index;                           \
+        return &type##_staticpool_table[index].buf;                             \
+    }                                                                           \
+                                                                                \
+    atomic_fetch_add_explicit(&type##_staticpool_last, -1, memory_order_relaxed); \
+    return av_malloc(sizeof(type));                                             \
+}                                                                               \
+                                                                                \
+static inline type *type##_staticpool_mallocz(void)                             \
+{                                                                               \
+    type *ptr = type##_staticpool_malloc();                                     \
+    if (ptr)                                                                    \
+        memset(ptr, 0, sizeof(*ptr));                                           \
+    return ptr;                                                                 \
+}                                                                               \
+                                                                                \
+static void type##_staticpool_free(type *ptr)                                   \
+{                                                                               \
+    type##_StaticPoolWrapper *entry = (type##_StaticPoolWrapper *) ptr;         \
+    unsigned val, serial, index, new_val;                                       \
+                                                                                \
+    if ((uintptr_t)ptr <= (uintptr_t)(type##_staticpool_table) ||               \
+        (uintptr_t)ptr >= (uintptr_t)(type##_staticpool_table + size)) {        \
+        av_free(ptr);                                                           \
+        return;                                                                 \
+    }                                                                           \
+                                                                                \
+    if (CONFIG_MEMORY_POISONING)                                                \
+        memset(&entry->buf, FF_MEMORY_POISON, sizeof(entry->buf));              \
+                                                                                \
+    val = atomic_load_explicit(&type##_staticpool_next, memory_order_relaxed);  \
+    do {                                                                        \
+        index  = val & ((size) - 1);                                            \
+        serial = val & ~((size) - 1);                                           \
+        atomic_store_explicit(&entry->next, index, memory_order_relaxed);       \
+        new_val = entry->index | (serial + (size));                             \
+    } while (!atomic_compare_exchange_strong_explicit(&type##_staticpool_next, &val, new_val, \
+                                                      memory_order_release, memory_order_relaxed)); \
+}                                                                               \
+                                                                                \
+static inline void type##_staticpool_freep(type **ptr)                          \
+{                                                                               \
+    if (ptr) {                                                                  \
+        type##_staticpool_free(*ptr);                                           \
+        *ptr = NULL;                                                            \
+    }                                                                           \
+}                                                                               \
+/* FF_STATICPOOL_DECLARE */
+
+#define FF_STATICPOOL_MALLOC(type) type##_staticpool_malloc()
+#define FF_STATICPOOL_MALLOCZ(type) type##_staticpool_mallocz()
+#define FF_STATICPOOL_FREE(type, v) type##_staticpool_free(v)
+#define FF_STATICPOOL_FREEP(type, v) type##_staticpool_freep(v)
+
+#endif
