diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index 00e785f0c8..4bba657bd1 100644
--- a/libswscale/rgb2rgb.c
+++ b/libswscale/rgb2rgb.c
@@ -78,10 +78,6 @@ void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc,
                       const uint8_t *vsrc, uint8_t *dst,
                       int width, int height,
                       int lumStride, int chromStride, int dstStride);
-void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst,
-                   uint8_t *udst, uint8_t *vdst,
-                   int width, int height,
-                   int lumStride, int chromStride, int srcStride);
 void (*ff_rgb24toyv12)(const uint8_t *src, uint8_t *ydst,
                        uint8_t *udst, uint8_t *vdst,
                        int width, int height,
@@ -95,16 +91,6 @@ void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
 void (*deinterleaveBytes)(const uint8_t *src, uint8_t *dst1, uint8_t *dst2,
                           int width, int height, int srcStride,
                           int dst1Stride, int dst2Stride);
-void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
-                    uint8_t *dst1, uint8_t *dst2,
-                    int width, int height,
-                    int srcStride1, int srcStride2,
-                    int dstStride1, int dstStride2);
-void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2,
-                     const uint8_t *src3, uint8_t *dst,
-                     int width, int height,
-                     int srcStride1, int srcStride2,
-                     int srcStride3, int dstStride);
 void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
                      const uint8_t *src, int width, int height,
                      int lumStride, int chromStride, int srcStride);
diff --git a/libswscale/rgb2rgb.h b/libswscale/rgb2rgb.h
index 0d0f7c3a28..ed6e08a565 100644
--- a/libswscale/rgb2rgb.h
+++ b/libswscale/rgb2rgb.h
@@ -108,14 +108,6 @@ extern void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uin
                              int width, int height,
                              int lumStride, int chromStride, int dstStride);
 
-/**
- * Height should be a multiple of 2 and width should be a multiple of 16.
- * (If this is a problem for anyone then tell me, and I will fix it.)
- */
-extern void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
-                          int width, int height,
-                          int lumStride, int chromStride, int srcStride);
-
 /**
  * Height should be a multiple of 2 and width should be a multiple of 16.
  * (If this is a problem for anyone then tell me, and I will fix it.)
@@ -150,18 +142,6 @@ extern void (*deinterleaveBytes)(const uint8_t *src, uint8_t *dst1, uint8_t *dst
                                  int width, int height, int srcStride,
                                  int dst1Stride, int dst2Stride);
 
-extern void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
-                           uint8_t *dst1, uint8_t *dst2,
-                           int width, int height,
-                           int srcStride1, int srcStride2,
-                           int dstStride1, int dstStride2);
-
-extern void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
-                            uint8_t *dst,
-                            int width, int height,
-                            int srcStride1, int srcStride2,
-                            int srcStride3, int dstStride);
-
 extern void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
                             int width, int height,
                             int lumStride, int chromStride, int srcStride);
diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c
index f71be33ac4..48959b6b5f 100644
--- a/libswscale/rgb2rgb_template.c
+++ b/libswscale/rgb2rgb_template.c
@@ -528,40 +528,6 @@ static inline void yuv422ptoyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
                       chromStride, dstStride, 1);
 }
 
-/**
- * Height should be a multiple of 2 and width should be a multiple of 16.
- * (If this is a problem for anyone then tell me, and I will fix it.)
- */
-static inline void yuy2toyv12_c(const uint8_t *src, uint8_t *ydst,
-                                uint8_t *udst, uint8_t *vdst,
-                                int width, int height, int lumStride,
-                                int chromStride, int srcStride)
-{
-    int y;
-    const int chromWidth = width >> 1;
-
-    for (y = 0; y < height; y += 2) {
-        int i;
-        for (i = 0; i < chromWidth; i++) {
-            ydst[2 * i + 0] = src[4 * i + 0];
-            udst[i]         = src[4 * i + 1];
-            ydst[2 * i + 1] = src[4 * i + 2];
-            vdst[i]         = src[4 * i + 3];
-        }
-        ydst += lumStride;
-        src  += srcStride;
-
-        for (i = 0; i < chromWidth; i++) {
-            ydst[2 * i + 0] = src[4 * i + 0];
-            ydst[2 * i + 1] = src[4 * i + 2];
-        }
-        udst += chromStride;
-        vdst += chromStride;
-        ydst += lumStride;
-        src  += srcStride;
-    }
-}
-
 static inline void planar2x_c(const uint8_t *src, uint8_t *dst, int srcWidth,
                               int srcHeight, int srcStride, int dstStride)
 {
@@ -710,59 +676,6 @@ static void deinterleaveBytes_c(const uint8_t *src, uint8_t *dst1, uint8_t *dst2
     }
 }
 
-static inline void vu9_to_vu12_c(const uint8_t *src1, const uint8_t *src2,
-                                 uint8_t *dst1, uint8_t *dst2,
-                                 int width, int height,
-                                 int srcStride1, int srcStride2,
-                                 int dstStride1, int dstStride2)
-{
-    int x, y;
-    int w = width  / 2;
-    int h = height / 2;
-
-    for (y = 0; y < h; y++) {
-        const uint8_t *s1 = src1 + srcStride1 * (y >> 1);
-        uint8_t *d        = dst1 + dstStride1 *  y;
-        for (x = 0; x < w; x++)
-            d[2 * x] = d[2 * x + 1] = s1[x];
-    }
-    for (y = 0; y < h; y++) {
-        const uint8_t *s2 = src2 + srcStride2 * (y >> 1);
-        uint8_t *d        = dst2 + dstStride2 *  y;
-        for (x = 0; x < w; x++)
-            d[2 * x] = d[2 * x + 1] = s2[x];
-    }
-}
-
-static inline void yvu9_to_yuy2_c(const uint8_t *src1, const uint8_t *src2,
-                                  const uint8_t *src3, uint8_t *dst,
-                                  int width, int height,
-                                  int srcStride1, int srcStride2,
-                                  int srcStride3, int dstStride)
-{
-    int x, y;
-    int w = width / 2;
-    int h = height;
-
-    for (y = 0; y < h; y++) {
-        const uint8_t *yp = src1 + srcStride1 *  y;
-        const uint8_t *up = src2 + srcStride2 * (y >> 2);
-        const uint8_t *vp = src3 + srcStride3 * (y >> 2);
-        uint8_t *d        = dst  + dstStride  *  y;
-        for (x = 0; x < w; x++) {
-            const int x2 = x << 2;
-            d[8 * x + 0] = yp[x2];
-            d[8 * x + 1] = up[x];
-            d[8 * x + 2] = yp[x2 + 1];
-            d[8 * x + 3] = vp[x];
-            d[8 * x + 4] = yp[x2 + 2];
-            d[8 * x + 5] = up[x];
-            d[8 * x + 6] = yp[x2 + 3];
-            d[8 * x + 7] = vp[x];
-        }
-    }
-}
-
 static void extract_even_c(const uint8_t *src, uint8_t *dst, int count)
 {
     dst   +=  count;
@@ -948,13 +861,10 @@ static av_cold void rgb2rgb_init_c(void)
     yv12touyvy         = yv12touyvy_c;
     yuv422ptoyuy2      = yuv422ptoyuy2_c;
     yuv422ptouyvy      = yuv422ptouyvy_c;
-    yuy2toyv12         = yuy2toyv12_c;
     planar2x           = planar2x_c;
     ff_rgb24toyv12     = ff_rgb24toyv12_c;
     interleaveBytes    = interleaveBytes_c;
     deinterleaveBytes  = deinterleaveBytes_c;
-    vu9_to_vu12        = vu9_to_vu12_c;
-    yvu9_to_yuy2       = yvu9_to_yuy2_c;
 
     uyvytoyuv420       = uyvytoyuv420_c;
     uyvytoyuv422       = uyvytoyuv422_c;
diff --git a/libswscale/x86/rgb2rgb.c b/libswscale/x86/rgb2rgb.c
index 48a73bd0b2..f2b434f611 100644
--- a/libswscale/x86/rgb2rgb.c
+++ b/libswscale/x86/rgb2rgb.c
@@ -1272,107 +1272,6 @@ static inline void yuv422ptoyuy2_mmxext(const uint8_t *ysrc, const uint8_t *usrc
     yuvPlanartoyuy2_mmxext(ysrc, usrc, vsrc, dst, width, height, lumStride, chromStride, dstStride, 1);
 }
 
-/**
- * Height should be a multiple of 2 and width should be a multiple of 16.
- * (If this is a problem for anyone then tell me, and I will fix it.)
- */
-static inline void yuy2toyv12_mmxext(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
-                                      int width, int height,
-                                      int lumStride, int chromStride, int srcStride)
-{
-    const x86_reg chromWidth= width>>1;
-    for (int y = 0; y < height; y += 2) {
-        __asm__ volatile(
-            "xor              %%"FF_REG_a", %%"FF_REG_a"\n\t"
-            "pcmpeqw                 %%mm7, %%mm7       \n\t"
-            "psrlw                      $8, %%mm7       \n\t" // FF,00,FF,00...
-            ".p2align                    4              \n\t"
-            "1:                \n\t"
-            PREFETCH" 64(%0, %%"FF_REG_a", 4)           \n\t"
-            "movq    (%0, %%"FF_REG_a", 4), %%mm0       \n\t" // YUYV YUYV(0)
-            "movq   8(%0, %%"FF_REG_a", 4), %%mm1       \n\t" // YUYV YUYV(4)
-            "movq                    %%mm0, %%mm2       \n\t" // YUYV YUYV(0)
-            "movq                    %%mm1, %%mm3       \n\t" // YUYV YUYV(4)
-            "psrlw                      $8, %%mm0       \n\t" // U0V0 U0V0(0)
-            "psrlw                      $8, %%mm1       \n\t" // U0V0 U0V0(4)
-            "pand                    %%mm7, %%mm2       \n\t" // Y0Y0 Y0Y0(0)
-            "pand                    %%mm7, %%mm3       \n\t" // Y0Y0 Y0Y0(4)
-            "packuswb                %%mm1, %%mm0       \n\t" // UVUV UVUV(0)
-            "packuswb                %%mm3, %%mm2       \n\t" // YYYY YYYY(0)
-
-            MOVNTQ"                  %%mm2, (%1, %%"FF_REG_a", 2) \n\t"
-
-            "movq  16(%0, %%"FF_REG_a", 4), %%mm1       \n\t" // YUYV YUYV(8)
-            "movq  24(%0, %%"FF_REG_a", 4), %%mm2       \n\t" // YUYV YUYV(12)
-            "movq                    %%mm1, %%mm3       \n\t" // YUYV YUYV(8)
-            "movq                    %%mm2, %%mm4       \n\t" // YUYV YUYV(12)
-            "psrlw                      $8, %%mm1       \n\t" // U0V0 U0V0(8)
-            "psrlw                      $8, %%mm2       \n\t" // U0V0 U0V0(12)
-            "pand                    %%mm7, %%mm3       \n\t" // Y0Y0 Y0Y0(8)
-            "pand                    %%mm7, %%mm4       \n\t" // Y0Y0 Y0Y0(12)
-            "packuswb                %%mm2, %%mm1       \n\t" // UVUV UVUV(8)
-            "packuswb                %%mm4, %%mm3       \n\t" // YYYY YYYY(8)
-
-            MOVNTQ"                  %%mm3, 8(%1, %%"FF_REG_a", 2) \n\t"
-
-            "movq                    %%mm0, %%mm2       \n\t" // UVUV UVUV(0)
-            "movq                    %%mm1, %%mm3       \n\t" // UVUV UVUV(8)
-            "psrlw                      $8, %%mm0       \n\t" // V0V0 V0V0(0)
-            "psrlw                      $8, %%mm1       \n\t" // V0V0 V0V0(8)
-            "pand                    %%mm7, %%mm2       \n\t" // U0U0 U0U0(0)
-            "pand                    %%mm7, %%mm3       \n\t" // U0U0 U0U0(8)
-            "packuswb                %%mm1, %%mm0       \n\t" // VVVV VVVV(0)
-            "packuswb                %%mm3, %%mm2       \n\t" // UUUU UUUU(0)
-
-            MOVNTQ"                  %%mm0, (%3, %%"FF_REG_a")     \n\t"
-            MOVNTQ"                  %%mm2, (%2, %%"FF_REG_a")     \n\t"
-
-            "add                        $8, %%"FF_REG_a" \n\t"
-            "cmp                        %4, %%"FF_REG_a" \n\t"
-            " jb                        1b               \n\t"
-            ::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "g" (chromWidth)
-            : "memory", "%"FF_REG_a
-        );
-
-        ydst += lumStride;
-        src  += srcStride;
-
-        __asm__ volatile(
-            "xor              %%"FF_REG_a", %%"FF_REG_a"\n\t"
-            ".p2align                    4              \n\t"
-            "1:                                         \n\t"
-            PREFETCH" 64(%0, %%"FF_REG_a", 4)           \n\t"
-            "movq    (%0, %%"FF_REG_a", 4), %%mm0       \n\t" // YUYV YUYV(0)
-            "movq   8(%0, %%"FF_REG_a", 4), %%mm1       \n\t" // YUYV YUYV(4)
-            "movq  16(%0, %%"FF_REG_a", 4), %%mm2       \n\t" // YUYV YUYV(8)
-            "movq  24(%0, %%"FF_REG_a", 4), %%mm3       \n\t" // YUYV YUYV(12)
-            "pand                    %%mm7, %%mm0       \n\t" // Y0Y0 Y0Y0(0)
-            "pand                    %%mm7, %%mm1       \n\t" // Y0Y0 Y0Y0(4)
-            "pand                    %%mm7, %%mm2       \n\t" // Y0Y0 Y0Y0(8)
-            "pand                    %%mm7, %%mm3       \n\t" // Y0Y0 Y0Y0(12)
-            "packuswb                %%mm1, %%mm0       \n\t" // YYYY YYYY(0)
-            "packuswb                %%mm3, %%mm2       \n\t" // YYYY YYYY(8)
-
-            MOVNTQ"                  %%mm0,  (%1, %%"FF_REG_a", 2) \n\t"
-            MOVNTQ"                  %%mm2, 8(%1, %%"FF_REG_a", 2) \n\t"
-
-            "add                        $8, %%"FF_REG_a"\n\t"
-            "cmp                        %4, %%"FF_REG_a"\n\t"
-            " jb                        1b              \n\t"
-
-            ::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "g" (chromWidth)
-            : "memory", "%"FF_REG_a
-        );
-        udst += chromStride;
-        vdst += chromStride;
-        ydst += lumStride;
-        src  += srcStride;
-    }
-    __asm__ volatile(EMMS"       \n\t"
-                     SFENCE"     \n\t"
-                     :::"memory");
-}
-
 static inline void planar2x_mmxext(const uint8_t *src, uint8_t *dst, int srcWidth, int srcHeight, int srcStride, int dstStride)
 {
     dst[0]= src[0];
@@ -1677,182 +1576,6 @@ static inline void rgb24toyv12_mmxext(const uint8_t *src, uint8_t *ydst, uint8_t
 }
 #endif /* HAVE_7REGS */
 
-static inline void vu9_to_vu12_mmxext(const uint8_t *src1, const uint8_t *src2,
-                                       uint8_t *dst1, uint8_t *dst2,
-                                       int width, int height,
-                                       int srcStride1, int srcStride2,
-                                       int dstStride1, int dstStride2)
-{
-    int w,h;
-    w=width/2; h=height/2;
-    __asm__ volatile(
-        PREFETCH" %0    \n\t"
-        PREFETCH" %1    \n\t"
-        ::"m"(*(src1+srcStride1)),"m"(*(src2+srcStride2)):"memory");
-    for (x86_reg y = 0; y < h; y++) {
-        const uint8_t* s1=src1+srcStride1*(y>>1);
-        uint8_t* d=dst1+dstStride1*y;
-        x86_reg x = 0;
-        for (;x<w-31;x+=32) {
-            __asm__ volatile(
-                PREFETCH"   32(%1,%2)        \n\t"
-                "movq         (%1,%2), %%mm0 \n\t"
-                "movq        8(%1,%2), %%mm2 \n\t"
-                "movq       16(%1,%2), %%mm4 \n\t"
-                "movq       24(%1,%2), %%mm6 \n\t"
-                "movq      %%mm0, %%mm1 \n\t"
-                "movq      %%mm2, %%mm3 \n\t"
-                "movq      %%mm4, %%mm5 \n\t"
-                "movq      %%mm6, %%mm7 \n\t"
-                "punpcklbw %%mm0, %%mm0 \n\t"
-                "punpckhbw %%mm1, %%mm1 \n\t"
-                "punpcklbw %%mm2, %%mm2 \n\t"
-                "punpckhbw %%mm3, %%mm3 \n\t"
-                "punpcklbw %%mm4, %%mm4 \n\t"
-                "punpckhbw %%mm5, %%mm5 \n\t"
-                "punpcklbw %%mm6, %%mm6 \n\t"
-                "punpckhbw %%mm7, %%mm7 \n\t"
-                MOVNTQ"    %%mm0,   (%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm1,  8(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm2, 16(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm3, 24(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm4, 32(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm5, 40(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm6, 48(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm7, 56(%0,%2,2)"
-                :: "r"(d), "r"(s1), "r"(x)
-                :"memory");
-        }
-        for (;x<w;x++) d[2*x]=d[2*x+1]=s1[x];
-    }
-    for (x86_reg y = 0; y < h; y++) {
-        const uint8_t* s2=src2+srcStride2*(y>>1);
-        uint8_t* d=dst2+dstStride2*y;
-        x86_reg x = 0;
-        for (;x<w-31;x+=32) {
-            __asm__ volatile(
-                PREFETCH"   32(%1,%2)        \n\t"
-                "movq         (%1,%2), %%mm0 \n\t"
-                "movq        8(%1,%2), %%mm2 \n\t"
-                "movq       16(%1,%2), %%mm4 \n\t"
-                "movq       24(%1,%2), %%mm6 \n\t"
-                "movq      %%mm0, %%mm1 \n\t"
-                "movq      %%mm2, %%mm3 \n\t"
-                "movq      %%mm4, %%mm5 \n\t"
-                "movq      %%mm6, %%mm7 \n\t"
-                "punpcklbw %%mm0, %%mm0 \n\t"
-                "punpckhbw %%mm1, %%mm1 \n\t"
-                "punpcklbw %%mm2, %%mm2 \n\t"
-                "punpckhbw %%mm3, %%mm3 \n\t"
-                "punpcklbw %%mm4, %%mm4 \n\t"
-                "punpckhbw %%mm5, %%mm5 \n\t"
-                "punpcklbw %%mm6, %%mm6 \n\t"
-                "punpckhbw %%mm7, %%mm7 \n\t"
-                MOVNTQ"    %%mm0,   (%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm1,  8(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm2, 16(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm3, 24(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm4, 32(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm5, 40(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm6, 48(%0,%2,2)  \n\t"
-                MOVNTQ"    %%mm7, 56(%0,%2,2)"
-                :: "r"(d), "r"(s2), "r"(x)
-                :"memory");
-        }
-        for (;x<w;x++) d[2*x]=d[2*x+1]=s2[x];
-    }
-    __asm__(
-            EMMS"       \n\t"
-            SFENCE"     \n\t"
-            ::: "memory"
-        );
-}
-
-static inline void yvu9_to_yuy2_mmxext(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
-                                        uint8_t *dst,
-                                        int width, int height,
-                                        int srcStride1, int srcStride2,
-                                        int srcStride3, int dstStride)
-{
-    int w,h;
-    w=width/2; h=height;
-    for (int y = 0; y < h; y++) {
-        const uint8_t* yp=src1+srcStride1*y;
-        const uint8_t* up=src2+srcStride2*(y>>2);
-        const uint8_t* vp=src3+srcStride3*(y>>2);
-        uint8_t* d=dst+dstStride*y;
-        x86_reg x = 0;
-        for (;x<w-7;x+=8) {
-            __asm__ volatile(
-                PREFETCH"   32(%1, %0)          \n\t"
-                PREFETCH"   32(%2, %0)          \n\t"
-                PREFETCH"   32(%3, %0)          \n\t"
-                "movq      (%1, %0, 4), %%mm0   \n\t" /* Y0Y1Y2Y3Y4Y5Y6Y7 */
-                "movq         (%2, %0), %%mm1   \n\t" /* U0U1U2U3U4U5U6U7 */
-                "movq         (%3, %0), %%mm2   \n\t" /* V0V1V2V3V4V5V6V7 */
-                "movq            %%mm0, %%mm3   \n\t" /* Y0Y1Y2Y3Y4Y5Y6Y7 */
-                "movq            %%mm1, %%mm4   \n\t" /* U0U1U2U3U4U5U6U7 */
-                "movq            %%mm2, %%mm5   \n\t" /* V0V1V2V3V4V5V6V7 */
-                "punpcklbw       %%mm1, %%mm1   \n\t" /* U0U0 U1U1 U2U2 U3U3 */
-                "punpcklbw       %%mm2, %%mm2   \n\t" /* V0V0 V1V1 V2V2 V3V3 */
-                "punpckhbw       %%mm4, %%mm4   \n\t" /* U4U4 U5U5 U6U6 U7U7 */
-                "punpckhbw       %%mm5, %%mm5   \n\t" /* V4V4 V5V5 V6V6 V7V7 */
-
-                "movq            %%mm1, %%mm6   \n\t"
-                "punpcklbw       %%mm2, %%mm1   \n\t" /* U0V0 U0V0 U1V1 U1V1*/
-                "punpcklbw       %%mm1, %%mm0   \n\t" /* Y0U0 Y1V0 Y2U0 Y3V0*/
-                "punpckhbw       %%mm1, %%mm3   \n\t" /* Y4U1 Y5V1 Y6U1 Y7V1*/
-                MOVNTQ"          %%mm0,  (%4, %0, 8)    \n\t"
-                MOVNTQ"          %%mm3, 8(%4, %0, 8)    \n\t"
-
-                "punpckhbw       %%mm2, %%mm6   \n\t" /* U2V2 U2V2 U3V3 U3V3*/
-                "movq     8(%1, %0, 4), %%mm0   \n\t"
-                "movq            %%mm0, %%mm3   \n\t"
-                "punpcklbw       %%mm6, %%mm0   \n\t" /* Y U2 Y V2 Y U2 Y V2*/
-                "punpckhbw       %%mm6, %%mm3   \n\t" /* Y U3 Y V3 Y U3 Y V3*/
-                MOVNTQ"          %%mm0, 16(%4, %0, 8)   \n\t"
-                MOVNTQ"          %%mm3, 24(%4, %0, 8)   \n\t"
-
-                "movq            %%mm4, %%mm6   \n\t"
-                "movq    16(%1, %0, 4), %%mm0   \n\t"
-                "movq            %%mm0, %%mm3   \n\t"
-                "punpcklbw       %%mm5, %%mm4   \n\t"
-                "punpcklbw       %%mm4, %%mm0   \n\t" /* Y U4 Y V4 Y U4 Y V4*/
-                "punpckhbw       %%mm4, %%mm3   \n\t" /* Y U5 Y V5 Y U5 Y V5*/
-                MOVNTQ"          %%mm0, 32(%4, %0, 8)   \n\t"
-                MOVNTQ"          %%mm3, 40(%4, %0, 8)   \n\t"
-
-                "punpckhbw       %%mm5, %%mm6   \n\t"
-                "movq    24(%1, %0, 4), %%mm0   \n\t"
-                "movq            %%mm0, %%mm3   \n\t"
-                "punpcklbw       %%mm6, %%mm0   \n\t" /* Y U6 Y V6 Y U6 Y V6*/
-                "punpckhbw       %%mm6, %%mm3   \n\t" /* Y U7 Y V7 Y U7 Y V7*/
-                MOVNTQ"          %%mm0, 48(%4, %0, 8)   \n\t"
-                MOVNTQ"          %%mm3, 56(%4, %0, 8)   \n\t"
-
-                : "+r" (x)
-                : "r"(yp), "r" (up), "r"(vp), "r"(d)
-                :"memory");
-        }
-        for (; x<w; x++) {
-            const int x2 = x<<2;
-            d[8*x+0] = yp[x2];
-            d[8*x+1] = up[x];
-            d[8*x+2] = yp[x2+1];
-            d[8*x+3] = vp[x];
-            d[8*x+4] = yp[x2+2];
-            d[8*x+5] = up[x];
-            d[8*x+6] = yp[x2+3];
-            d[8*x+7] = vp[x];
-        }
-    }
-    __asm__(
-            EMMS"       \n\t"
-            SFENCE"     \n\t"
-            ::: "memory"
-        );
-}
-
 static void extract_even_mmxext(const uint8_t *src, uint8_t *dst, x86_reg count)
 {
     dst +=   count;
@@ -2248,9 +1971,6 @@ static av_cold void rgb2rgb_init_mmxext(void)
     yv12touyvy         = yv12touyvy_mmxext;
     yuv422ptoyuy2      = yuv422ptoyuy2_mmxext;
     yuv422ptouyvy      = yuv422ptouyvy_mmxext;
-    yuy2toyv12         = yuy2toyv12_mmxext;
-    vu9_to_vu12        = vu9_to_vu12_mmxext;
-    yvu9_to_yuy2       = yvu9_to_yuy2_mmxext;
 #if ARCH_X86_32
     uyvytoyuv422       = uyvytoyuv422_mmxext;
 #endif