diff --git a/libavcodec/aacps.c b/libavcodec/aacps.c
index 20012f9b31dc20cb5ea73a5adfd2b01409b76678..ea5a5d23317fcafa8d5c03a438c0e7d387df90d9 100644
--- a/libavcodec/aacps.c
+++ b/libavcodec/aacps.c
@@ -908,8 +908,8 @@ static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2
 
 int ff_ps_apply(AVCodecContext *avctx, PSContext *ps, float L[2][38][64], float R[2][38][64], int top)
 {
-    LOCAL_ALIGNED_16(float, Lbuf, [91], [32][2]);
-    LOCAL_ALIGNED_16(float, Rbuf, [91], [32][2]);
+    float (*Lbuf)[32][2] = ps->Lbuf;
+    float (*Rbuf)[32][2] = ps->Rbuf;
     const int len = 32;
     int is34 = ps->is34bands;
 
diff --git a/libavcodec/aacps.h b/libavcodec/aacps.h
index 29323ffc0aae1d4761787df520acdcca52339701..174770d6e4e56609adea1d1fe9f46d377f42232b 100644
--- a/libavcodec/aacps.h
+++ b/libavcodec/aacps.h
@@ -71,6 +71,8 @@ typedef struct PSContext {
     DECLARE_ALIGNED(16, float, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
     DECLARE_ALIGNED(16, float, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
     DECLARE_ALIGNED(16, float, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, float, Lbuf)[91][32][2];
+    DECLARE_ALIGNED(16, float, Rbuf)[91][32][2];
     int8_t opd_hist[PS_MAX_NR_IIDICC];
     int8_t ipd_hist[PS_MAX_NR_IIDICC];
     PSDSPContext dsp;