diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index 8707917800..de90e5193f 100644
--- a/libswscale/rgb2rgb.c
+++ b/libswscale/rgb2rgb.c
@@ -83,6 +83,11 @@ void (*ff_bgr24toyv12)(const uint8_t *src, uint8_t *ydst,
                        int width, int height,
                        int lumStride, int chromStride, int srcStride,
                        int32_t *rgb2yuv);
+void (*ff_rgb24toyv12)(const uint8_t *src, uint8_t *ydst,
+                       uint8_t *udst, uint8_t *vdst,
+                       int width, int height,
+                       int lumStride, int chromStride, int srcStride,
+                       int32_t *rgb2yuv);
 void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height,
                  int srcStride, int dstStride);
 void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
diff --git a/libswscale/rgb2rgb.h b/libswscale/rgb2rgb.h
index 305b830920..f7a76a92ba 100644
--- a/libswscale/rgb2rgb.h
+++ b/libswscale/rgb2rgb.h
@@ -79,6 +79,9 @@ void    rgb12to15(const uint8_t *src, uint8_t *dst, int src_size);
 void ff_bgr24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
                       uint8_t *vdst, int width, int height, int lumStride,
                       int chromStride, int srcStride, int32_t *rgb2yuv);
+void ff_rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                      uint8_t *vdst, int width, int height, int lumStride,
+                      int chromStride, int srcStride, int32_t *rgb2yuv);
 
 /**
  * Height should be a multiple of 2 and width should be a multiple of 16.
@@ -128,6 +131,10 @@ extern void (*ff_bgr24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
                               int width, int height,
                               int lumStride, int chromStride, int srcStride,
                               int32_t *rgb2yuv);
+extern void (*ff_rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                              int width, int height,
+                              int lumStride, int chromStride, int srcStride,
+                              int32_t *rgb2yuv);
 extern void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height,
                         int srcStride, int dstStride);
 
diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c
index 8ef4a2cf5d..e57bfa6545 100644
--- a/libswscale/rgb2rgb_template.c
+++ b/libswscale/rgb2rgb_template.c
@@ -646,13 +646,14 @@ static inline void uyvytoyv12_c(const uint8_t *src, uint8_t *ydst,
  * others are ignored in the C version.
  * FIXME: Write HQ version.
  */
-void ff_bgr24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+static void rgb24toyv12_x(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
                    uint8_t *vdst, int width, int height, int lumStride,
-                   int chromStride, int srcStride, int32_t *rgb2yuv)
+                   int chromStride, int srcStride, int32_t *rgb2yuv,
+                   const uint8_t x[9])
 {
-    int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
-    int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
-    int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
+    int32_t ry = rgb2yuv[x[0]], gy = rgb2yuv[x[1]], by = rgb2yuv[x[2]];
+    int32_t ru = rgb2yuv[x[3]], gu = rgb2yuv[x[4]], bu = rgb2yuv[x[5]];
+    int32_t rv = rgb2yuv[x[6]], gv = rgb2yuv[x[7]], bv = rgb2yuv[x[8]];
     int y;
     const int chromWidth = width >> 1;
 
@@ -707,6 +708,32 @@ void ff_bgr24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
     }
 }
 
+static const uint8_t x_bgr[9] = {
+    RY_IDX, GY_IDX, BY_IDX,
+    RU_IDX, GU_IDX, BU_IDX,
+    RV_IDX, GV_IDX, BV_IDX,
+};
+
+static const uint8_t x_rgb[9] = {
+     BY_IDX, GY_IDX, RY_IDX,
+     BU_IDX, GU_IDX, RU_IDX,
+     BV_IDX, GV_IDX, RV_IDX,
+};
+
+void ff_bgr24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, int width, int height, int lumStride,
+                   int chromStride, int srcStride, int32_t *rgb2yuv)
+{
+    rgb24toyv12_x(src, ydst, udst, vdst, width, height, lumStride, chromStride, srcStride, rgb2yuv, x_bgr);
+}
+
+void ff_rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, int width, int height, int lumStride,
+                   int chromStride, int srcStride, int32_t *rgb2yuv)
+{
+    rgb24toyv12_x(src, ydst, udst, vdst, width, height, lumStride, chromStride, srcStride, rgb2yuv, x_rgb);
+}
+
 static void interleaveBytes_c(const uint8_t *src1, const uint8_t *src2,
                               uint8_t *dest, int width, int height,
                               int src1Stride, int src2Stride, int dstStride)
@@ -979,6 +1006,7 @@ static av_cold void rgb2rgb_init_c(void)
     yuv422ptouyvy      = yuv422ptouyvy_c;
     yuy2toyv12         = yuy2toyv12_c;
     planar2x           = planar2x_c;
+    ff_rgb24toyv12     = ff_rgb24toyv12_c;
     ff_bgr24toyv12     = ff_bgr24toyv12_c;
     interleaveBytes    = interleaveBytes_c;
     deinterleaveBytes  = deinterleaveBytes_c;
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index 32e0d7f63c..751bdcb2e4 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -1654,6 +1654,23 @@ static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
     return srcSliceH;
 }
 
+static int rgb24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
+                              int srcStride[], int srcSliceY, int srcSliceH,
+                              uint8_t *dst[], int dstStride[])
+{
+    ff_rgb24toyv12(
+        src[0],
+        dst[0] +  srcSliceY       * dstStride[0],
+        dst[1] + (srcSliceY >> 1) * dstStride[1],
+        dst[2] + (srcSliceY >> 1) * dstStride[2],
+        c->srcW, srcSliceH,
+        dstStride[0], dstStride[1], srcStride[0],
+        c->input_rgb2yuv_table);
+    if (dst[3])
+        fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
+    return srcSliceH;
+}
+
 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
                              int srcStride[], int srcSliceY, int srcSliceH,
                              uint8_t *dst[], int dstStride[])
@@ -2035,8 +2052,13 @@ void ff_get_unscaled_swscale(SwsContext *c)
     /* bgr24toYV12 */
     if (srcFormat == AV_PIX_FMT_BGR24 &&
         (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
-        !(flags & SWS_ACCURATE_RND) && !(dstW&1))
+        !(flags & (SWS_ACCURATE_RND | SWS_BITEXACT)) && !(dstW&1))
         c->convert_unscaled = bgr24ToYv12Wrapper;
+    /* rgb24toYV12 */
+    if (srcFormat == AV_PIX_FMT_RGB24 &&
+        (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
+        !(flags & (SWS_ACCURATE_RND | SWS_BITEXACT)) && !(dstW&1))
+        c->convert_unscaled = rgb24ToYv12Wrapper;
 
     /* RGB/BGR -> RGB/BGR (no dither needed forms) */
     if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
