diff --git a/libavcodec/x86/Makefile b/libavcodec/x86/Makefile
index 6d51b161ec..e881ef2a26 100644
--- a/libavcodec/x86/Makefile
+++ b/libavcodec/x86/Makefile
@@ -4,6 +4,7 @@ OBJS                                   += x86/constants.o               \
 OBJS-$(CONFIG_AAC_DECODER)             += x86/sbrdsp_init.o
 OBJS-$(CONFIG_AC3DSP)                  += x86/ac3dsp_init.o
 OBJS-$(CONFIG_CAVS_DECODER)            += x86/cavsdsp.o
+OBJS-$(CONFIG_DCT)                     += x86/dct_init.o
 OBJS-$(CONFIG_DNXHD_ENCODER)           += x86/dnxhdenc.o
 OBJS-$(CONFIG_FFT)                     += x86/fft_init.o
 OBJS-$(CONFIG_H264CHROMA)              += x86/h264chroma_init.o
diff --git a/libavcodec/x86/dct_init.c b/libavcodec/x86/dct_init.c
new file mode 100644
index 0000000000..85e2d0c3e6
--- /dev/null
+++ b/libavcodec/x86/dct_init.c
@@ -0,0 +1,39 @@
+/*
+ * 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
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/dct.h"
+
+void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
+
+av_cold void ff_dct_init_x86(DCTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags))
+        s->dct32 = ff_dct32_float_sse;
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->dct32 = ff_dct32_float_sse2;
+    if (EXTERNAL_AVX(cpu_flags))
+        s->dct32 = ff_dct32_float_avx;
+}
diff --git a/libavcodec/x86/fft.h b/libavcodec/x86/fft.h
index 3f8b21d95b..398091eb1f 100644
--- a/libavcodec/x86/fft.h
+++ b/libavcodec/x86/fft.h
@@ -34,8 +34,5 @@ void ff_imdct_half_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *i
 void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
 void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
 void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input);
-void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
-void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in);
-void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
 
 #endif /* AVCODEC_X86_FFT_H */
diff --git a/libavcodec/x86/fft_init.c b/libavcodec/x86/fft_init.c
index c935c6c75c..5682230c8e 100644
--- a/libavcodec/x86/fft_init.c
+++ b/libavcodec/x86/fft_init.c
@@ -16,9 +16,10 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "config.h"
+#include "libavutil/attributes.h"
 #include "libavutil/cpu.h"
 #include "libavutil/x86/cpu.h"
-#include "libavcodec/dct.h"
 #include "fft.h"
 
 av_cold void ff_fft_init_x86(FFTContext *s)
@@ -54,17 +55,3 @@ av_cold void ff_fft_init_x86(FFTContext *s)
         s->fft_permutation = FF_FFT_PERM_AVX;
     }
 }
-
-#if CONFIG_DCT
-av_cold void ff_dct_init_x86(DCTContext *s)
-{
-    int cpu_flags = av_get_cpu_flags();
-
-    if (EXTERNAL_SSE(cpu_flags))
-        s->dct32 = ff_dct32_float_sse;
-    if (EXTERNAL_SSE2(cpu_flags))
-        s->dct32 = ff_dct32_float_sse2;
-    if (EXTERNAL_AVX(cpu_flags))
-        s->dct32 = ff_dct32_float_avx;
-}
-#endif