diff --git a/libswresample/x86/audio_convert.asm b/libswresample/x86/audio_convert.asm
index 19e3e04732..6fc86f0748 100644
--- a/libswresample/x86/audio_convert.asm
+++ b/libswresample/x86/audio_convert.asm
@@ -444,6 +444,8 @@ PACK_6CH float, float, a, 2, 2, NOP_N, NOP_N
 
 PACK_6CH float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
 PACK_6CH float, int32, a, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_6CH int32, float, u, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_6CH int32, float, a, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
 
 %if HAVE_AVX
 INIT_XMM avx
@@ -452,6 +454,8 @@ PACK_6CH float, float, a, 2, 2, NOP_N, NOP_N
 
 PACK_6CH float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
 PACK_6CH float, int32, a, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_6CH int32, float, u, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_6CH int32, float, a, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
 
 INIT_YMM avx
 CONV float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
diff --git a/libswresample/x86/swresample_x86.c b/libswresample/x86/swresample_x86.c
index 3a91d365a1..6cd6073e9c 100644
--- a/libswresample/x86/swresample_x86.c
+++ b/libswresample/x86/swresample_x86.c
@@ -125,6 +125,8 @@ MULTI_CAPS_FUNC(AV_CPU_FLAG_SSE, sse)
                 ac->simd_f =  ff_pack_6ch_float_to_float_a_sse4;
             if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
                 ac->simd_f =  ff_pack_6ch_int32_to_float_a_sse4;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_6ch_float_to_int32_a_sse4;
         }
     }
     if(HAVE_AVX && mm_flags & AV_CPU_FLAG_AVX) {
@@ -135,6 +137,8 @@ MULTI_CAPS_FUNC(AV_CPU_FLAG_SSE, sse)
                 ac->simd_f =  ff_pack_6ch_float_to_float_a_avx;
             if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
                 ac->simd_f =  ff_pack_6ch_int32_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_6ch_float_to_int32_a_avx;
         }
     }
 }