diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index bb203981b2..274e5ca294 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -30,7 +30,6 @@
  ***********************************/
 
 #include "libavutil/libm.h"
-#include "libavutil/thread.h"
 #include "libavutil/float_dsp.h"
 #include "libavutil/opt.h"
 #include "avcodec.h"
@@ -49,8 +48,6 @@
 
 #include "psymodel.h"
 
-static AVOnce aac_table_init = AV_ONCE_INIT;
-
 static void put_pce(PutBitContext *pb, AVCodecContext *avctx)
 {
     int i, j;
@@ -951,11 +948,6 @@ static av_cold int alloc_buffers(AVCodecContext *avctx, AACEncContext *s)
     return 0;
 }
 
-static av_cold void aac_encode_init_tables(void)
-{
-    ff_aac_tableinit();
-}
-
 static av_cold int aac_encode_init(AVCodecContext *avctx)
 {
     AACEncContext *s = avctx->priv_data;
@@ -1107,10 +1099,8 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
     if (HAVE_MIPSDSP)
         ff_aac_coder_init_mips(s);
 
-    if ((ret = ff_thread_once(&aac_table_init, &aac_encode_init_tables)) != 0)
-        return AVERROR_UNKNOWN;
-
     ff_af_queue_init(avctx, &s->afq);
+    ff_aac_tableinit();
 
     return 0;
 }
diff --git a/libavcodec/aactab.c b/libavcodec/aactab.c
index df551b058f..79dd13d9cb 100644
--- a/libavcodec/aactab.c
+++ b/libavcodec/aactab.c
@@ -28,7 +28,9 @@
  */
 
 #include "libavutil/mem.h"
+#include "libavutil/thread.h"
 #include "aac.h"
+#include "aactab.h"
 
 #include <stdint.h>
 
@@ -3280,3 +3282,53 @@ const DECLARE_ALIGNED(32, int, ff_aac_eld_window_480_fixed)[1800] = {
     0xffecff1c, 0xffed391e, 0xffed740c, 0xffedafb1,
     0xffedebe1, 0xffee287d, 0xffee654e, 0xffeea23f,
 };
+
+static void aac_tableinit(void)
+{
+    /* 2^(i/16) for 0 <= i <= 15 */
+    static const float exp2_lut[] = {
+        1.00000000000000000000,
+        1.04427378242741384032,
+        1.09050773266525765921,
+        1.13878863475669165370,
+        1.18920711500272106672,
+        1.24185781207348404859,
+        1.29683955465100966593,
+        1.35425554693689272830,
+        1.41421356237309504880,
+        1.47682614593949931139,
+        1.54221082540794082361,
+        1.61049033194925430818,
+        1.68179283050742908606,
+        1.75625216037329948311,
+        1.83400808640934246349,
+        1.91520656139714729387,
+    };
+    float t1 = 8.8817841970012523233890533447265625e-16; // 2^(-50)
+    float t2 = 3.63797880709171295166015625e-12; // 2^(-38)
+    int t1_inc_cur, t2_inc_cur;
+    int t1_inc_prev = 0;
+    int t2_inc_prev = 8;
+
+    for (int i = 0; i < 428; i++) {
+        t1_inc_cur = 4 * (i % 4);
+        t2_inc_cur = (8 + 3*i) % 16;
+        if (t1_inc_cur < t1_inc_prev)
+            t1 *= 2;
+        if (t2_inc_cur < t2_inc_prev)
+            t2 *= 2;
+        // A much more efficient and accurate way of doing:
+        // ff_aac_pow2sf_tab[i]  = pow(2, (i - POW_SF2_ZERO) / 4.0);
+        // ff_aac_pow34sf_tab[i] = pow(ff_aac_pow2sf_tab[i], 3.0/4.0);
+        ff_aac_pow2sf_tab[i]  = t1 * exp2_lut[t1_inc_cur];
+        ff_aac_pow34sf_tab[i] = t2 * exp2_lut[t2_inc_cur];
+        t1_inc_prev = t1_inc_cur;
+        t2_inc_prev = t2_inc_cur;
+    }
+}
+
+void ff_aac_tableinit(void)
+{
+    static AVOnce init_static_once = AV_ONCE_INIT;
+    ff_thread_once(&init_static_once, aac_tableinit);
+}
diff --git a/libavcodec/aactab.h b/libavcodec/aactab.h
index 29df6a43f0..ce6a7ba1d2 100644
--- a/libavcodec/aactab.h
+++ b/libavcodec/aactab.h
@@ -42,51 +42,7 @@
 extern float ff_aac_pow2sf_tab[428];
 extern float ff_aac_pow34sf_tab[428];
 
-static inline void ff_aac_tableinit(void)
-{
-    int i;
-
-    /* 2^(i/16) for 0 <= i <= 15 */
-    static const float exp2_lut[] = {
-        1.00000000000000000000,
-        1.04427378242741384032,
-        1.09050773266525765921,
-        1.13878863475669165370,
-        1.18920711500272106672,
-        1.24185781207348404859,
-        1.29683955465100966593,
-        1.35425554693689272830,
-        1.41421356237309504880,
-        1.47682614593949931139,
-        1.54221082540794082361,
-        1.61049033194925430818,
-        1.68179283050742908606,
-        1.75625216037329948311,
-        1.83400808640934246349,
-        1.91520656139714729387,
-    };
-    float t1 = 8.8817841970012523233890533447265625e-16; // 2^(-50)
-    float t2 = 3.63797880709171295166015625e-12; // 2^(-38)
-    int t1_inc_cur, t2_inc_cur;
-    int t1_inc_prev = 0;
-    int t2_inc_prev = 8;
-
-    for (i = 0; i < 428; i++) {
-        t1_inc_cur = 4 * (i % 4);
-        t2_inc_cur = (8 + 3*i) % 16;
-        if (t1_inc_cur < t1_inc_prev)
-            t1 *= 2;
-        if (t2_inc_cur < t2_inc_prev)
-            t2 *= 2;
-        // A much more efficient and accurate way of doing:
-        // ff_aac_pow2sf_tab[i] = pow(2, (i - POW_SF2_ZERO) / 4.0);
-        // ff_aac_pow34sf_tab[i] = pow(ff_aac_pow2sf_tab[i], 3.0/4.0);
-        ff_aac_pow2sf_tab[i] = t1 * exp2_lut[t1_inc_cur];
-        ff_aac_pow34sf_tab[i] = t2 * exp2_lut[t2_inc_cur];
-        t1_inc_prev = t1_inc_cur;
-        t2_inc_prev = t2_inc_cur;
-    }
-}
+void ff_aac_tableinit(void);
 
 /* @name ltp_coef
  * Table of the LTP coefficients