diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 27a77c91b2..a27c86aa3d 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -772,7 +772,7 @@ int ff_MPV_encode_init(AVCodecContext *avctx);
 int ff_MPV_encode_end(AVCodecContext *avctx);
 int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
                           AVFrame *frame, int *got_packet);
-void ff_MPV_encode_init_x86(MpegEncContext *s);
+void ff_dct_encode_init_x86(MpegEncContext *s);
 void ff_MPV_common_init_x86(MpegEncContext *s);
 void ff_MPV_common_init_axp(MpegEncContext *s);
 void ff_MPV_common_init_mmi(MpegEncContext *s);
@@ -799,6 +799,7 @@ void ff_er_frame_end(MpegEncContext *s);
 void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
 
 int ff_dct_common_init(MpegEncContext *s);
+int ff_dct_encode_init(MpegEncContext *s);
 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
                        const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
 int ff_dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index ab6115b6f0..4322d65e73 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -267,6 +267,21 @@ static void MPV_encode_defaults(MpegEncContext *s)
     s->fcode_tab     = default_fcode_tab;
 }
 
+av_cold int ff_dct_encode_init(MpegEncContext *s) {
+    if (ARCH_X86)
+        ff_dct_encode_init_x86(s);
+
+    if (!s->dct_quantize)
+        s->dct_quantize = ff_dct_quantize_c;
+    if (!s->denoise_dct)
+        s->denoise_dct  = denoise_dct_c;
+    s->fast_dct_quantize = s->dct_quantize;
+    if (s->avctx->trellis)
+        s->dct_quantize  = dct_quantize_trellis_c;
+
+    return 0;
+}
+
 /* init video encoder */
 av_cold int ff_MPV_encode_init(AVCodecContext *avctx)
 {
@@ -832,16 +847,7 @@ av_cold int ff_MPV_encode_init(AVCodecContext *avctx)
     if (ff_MPV_common_init(s) < 0)
         return -1;
 
-    if (ARCH_X86)
-        ff_MPV_encode_init_x86(s);
-
-    if (!s->dct_quantize)
-        s->dct_quantize = ff_dct_quantize_c;
-    if (!s->denoise_dct)
-        s->denoise_dct  = denoise_dct_c;
-    s->fast_dct_quantize = s->dct_quantize;
-    if (avctx->trellis)
-        s->dct_quantize  = dct_quantize_trellis_c;
+    ff_dct_encode_init(s);
 
     if ((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
         s->chroma_qscale_table = ff_h263_chroma_qscale_table;
diff --git a/libavcodec/x86/mpegvideoenc.c b/libavcodec/x86/mpegvideoenc.c
index 20d26ec8b6..ee2b25f81e 100644
--- a/libavcodec/x86/mpegvideoenc.c
+++ b/libavcodec/x86/mpegvideoenc.c
@@ -80,7 +80,7 @@ extern uint16_t ff_inv_zigzag_direct16[64];
 #include "mpegvideoenc_template.c"
 #endif /* HAVE_SSSE3_INLINE */
 
-void ff_MPV_encode_init_x86(MpegEncContext *s)
+void ff_dct_encode_init_x86(MpegEncContext *s)
 {
     int mm_flags = av_get_cpu_flags();
     const int dct_algo = s->avctx->dct_algo;