diff --git a/dlls/mfplat/mediatype.c b/dlls/mfplat/mediatype.c
index 620e144d348..f92577a9cbc 100644
--- a/dlls/mfplat/mediatype.c
+++ b/dlls/mfplat/mediatype.c
@@ -1791,6 +1791,7 @@ static const struct uncompressed_video_format video_formats[] =
     { &MFVideoFormat_RGB8,          1, 3, 1, 0 },
     { &MFVideoFormat_L8,            1, 3, 1, 0 },
     { &MFVideoFormat_AYUV,          4, 3, 0, 1 },
+    { &MFVideoFormat_I420,          1, 0, 0, 1 },
     { &MFVideoFormat_IMC1,          2, 3, 0, 1 },
     { &MFVideoFormat_IMC2,          1, 0, 0, 1 },
     { &MFVideoFormat_IMC3,          2, 3, 0, 1 },
@@ -1876,6 +1877,7 @@ HRESULT WINAPI MFCalculateImageSize(REFGUID subtype, UINT32 width, UINT32 height
         case MAKEFOURCC('I','M','C','4'):
         case MAKEFOURCC('N','V','1','2'):
         case MAKEFOURCC('Y','V','1','2'):
+        case MAKEFOURCC('I','4','2','0'):
             /* 2 x 2 block, interleaving UV for half the height */
             *size = ((width + 1) & ~1) * height * 3 / 2;
             break;
@@ -1917,6 +1919,7 @@ HRESULT WINAPI MFGetPlaneSize(DWORD fourcc, DWORD width, DWORD height, DWORD *si
         case MAKEFOURCC('I','M','C','4'):
         case MAKEFOURCC('N','V','1','2'):
         case MAKEFOURCC('Y','V','1','2'):
+        case MAKEFOURCC('I','4','2','0'):
             *size = stride * height * 3 / 2;
             break;
         default:
diff --git a/dlls/mfplat/tests/mfplat.c b/dlls/mfplat/tests/mfplat.c
index 4bc08136247..8a52279a081 100644
--- a/dlls/mfplat/tests/mfplat.c
+++ b/dlls/mfplat/tests/mfplat.c
@@ -3553,41 +3553,56 @@ static void test_MFCalculateImageSize(void)
         { &MFVideoFormat_NV12, 1, 2, 6, 3 },
         { &MFVideoFormat_NV12, 2, 2, 6, 6 },
         { &MFVideoFormat_NV12, 3, 2, 12, 9 },
-        { &MFVideoFormat_NV12, 4, 2, 12, 12 },
+        { &MFVideoFormat_NV12, 4, 2, 12 },
+        { &MFVideoFormat_NV12, 320, 240, 115200 },
         { &MFVideoFormat_AYUV, 1, 1, 4 },
         { &MFVideoFormat_AYUV, 2, 1, 8 },
         { &MFVideoFormat_AYUV, 1, 2, 8 },
         { &MFVideoFormat_AYUV, 4, 3, 48 },
+        { &MFVideoFormat_AYUV, 320, 240, 307200 },
         { &MFVideoFormat_IMC1, 1, 1, 4 },
         { &MFVideoFormat_IMC1, 2, 1, 4 },
         { &MFVideoFormat_IMC1, 1, 2, 8 },
         { &MFVideoFormat_IMC1, 4, 3, 24 },
+        { &MFVideoFormat_IMC1, 320, 240, 153600 },
         { &MFVideoFormat_IMC3, 1, 1, 4 },
         { &MFVideoFormat_IMC3, 2, 1, 4 },
         { &MFVideoFormat_IMC3, 1, 2, 8 },
         { &MFVideoFormat_IMC3, 4, 3, 24 },
+        { &MFVideoFormat_IMC3, 320, 240, 153600 },
         { &MFVideoFormat_IMC2, 1, 3, 9, 4 },
         { &MFVideoFormat_IMC2, 1, 2, 6, 3 },
         { &MFVideoFormat_IMC2, 2, 2, 6, 6 },
         { &MFVideoFormat_IMC2, 3, 2, 12, 9 },
-        { &MFVideoFormat_IMC2, 4, 2, 12, 12 },
+        { &MFVideoFormat_IMC2, 4, 2, 12 },
+        { &MFVideoFormat_IMC2, 320, 240, 115200 },
         { &MFVideoFormat_IMC4, 1, 3, 9, 4 },
         { &MFVideoFormat_IMC4, 1, 2, 6, 3 },
         { &MFVideoFormat_IMC4, 2, 2, 6, 6 },
         { &MFVideoFormat_IMC4, 3, 2, 12, 9 },
-        { &MFVideoFormat_IMC4, 4, 2, 12, 12 },
+        { &MFVideoFormat_IMC4, 4, 2, 12 },
+        { &MFVideoFormat_IMC4, 320, 240, 115200 },
         { &MFVideoFormat_YV12, 1, 1, 3, 1 },
         { &MFVideoFormat_YV12, 2, 1, 3 },
         { &MFVideoFormat_YV12, 1, 2, 6, 3 },
         { &MFVideoFormat_YV12, 4, 3, 18 },
+        { &MFVideoFormat_YV12, 320, 240, 115200 },
+
+        { &MFVideoFormat_I420, 1, 1, 3, 1 },
+        { &MFVideoFormat_I420, 2, 1, 3 },
+        { &MFVideoFormat_I420, 1, 2, 6, 3 },
+        { &MFVideoFormat_I420, 4, 3, 18 },
+        { &MFVideoFormat_I420, 320, 240, 115200 },
 
         { &MFVideoFormat_YUY2, 2, 1, 4 },
         { &MFVideoFormat_YUY2, 4, 3, 24 },
         { &MFVideoFormat_YUY2, 128, 128, 32768 },
+        { &MFVideoFormat_YUY2, 320, 240, 153600 },
 
         { &MFVideoFormat_UYVY, 2, 1, 4 },
         { &MFVideoFormat_UYVY, 4, 3, 24 },
         { &MFVideoFormat_UYVY, 128, 128, 32768 },
+        { &MFVideoFormat_UYVY, 320, 240, 153600 },
     };
     unsigned int i;
     UINT32 size;
@@ -4716,6 +4731,11 @@ static void test_MFGetStrideForBitmapInfoHeader(void)
         { &MFVideoFormat_YV12, 1, 1 },
         { &MFVideoFormat_YV12, 2, 2 },
         { &MFVideoFormat_YV12, 3, 3 },
+        { &MFVideoFormat_YV12, 320, 320 },
+        { &MFVideoFormat_I420, 1, 1 },
+        { &MFVideoFormat_I420, 2, 2 },
+        { &MFVideoFormat_I420, 3, 3 },
+        { &MFVideoFormat_I420, 320, 320 },
     };
     unsigned int i;
     LONG stride;