diff --git a/aom_dsp/variance.c b/aom_dsp/variance.c
index 37083b5..cb5924a 100644
--- a/aom_dsp/variance.c
+++ b/aom_dsp/variance.c
@@ -251,6 +251,13 @@
 VARIANCES(2, 4)
 VARIANCES(2, 2)
 
+#if CONFIG_AV1 && CONFIG_EXT_PARTITION_TYPES
+VARIANCES(4, 16)
+VARIANCES(16, 4)
+VARIANCES(8, 32)
+VARIANCES(32, 8)
+#endif
+
 GET_VAR(16, 16)
 GET_VAR(8, 8)
 
@@ -649,6 +656,13 @@
 HIGHBD_VARIANCES(2, 4)
 HIGHBD_VARIANCES(2, 2)
 
+#if CONFIG_AV1 && CONFIG_EXT_PARTITION_TYPES
+HIGHBD_VARIANCES(4, 16)
+HIGHBD_VARIANCES(16, 4)
+HIGHBD_VARIANCES(8, 32)
+HIGHBD_VARIANCES(32, 8)
+#endif
+
 HIGHBD_GET_VAR(8)
 HIGHBD_GET_VAR(16)
 
@@ -831,6 +845,13 @@
 MASK_SUBPIX_VAR(128, 128)
 #endif  // CONFIG_EXT_PARTITION
 
+#if CONFIG_EXT_PARTITION_TYPES
+MASK_SUBPIX_VAR(4, 16)
+MASK_SUBPIX_VAR(16, 4)
+MASK_SUBPIX_VAR(8, 32)
+MASK_SUBPIX_VAR(32, 8)
+#endif
+
 #if CONFIG_HIGHBITDEPTH
 void aom_highbd_comp_mask_pred_c(uint16_t *comp_pred, const uint8_t *pred8,
                                  int width, int height, const uint8_t *ref8,
@@ -960,6 +981,13 @@
 HIGHBD_MASK_SUBPIX_VAR(128, 64)
 HIGHBD_MASK_SUBPIX_VAR(128, 128)
 #endif  // CONFIG_EXT_PARTITION
+
+#if CONFIG_EXT_PARTITION_TYPES
+HIGHBD_MASK_SUBPIX_VAR(4, 16)
+HIGHBD_MASK_SUBPIX_VAR(16, 4)
+HIGHBD_MASK_SUBPIX_VAR(8, 32)
+HIGHBD_MASK_SUBPIX_VAR(32, 8)
+#endif
 #endif  // CONFIG_HIGHBITDEPTH
 #endif  // CONFIG_AV1 && CONFIG_EXT_INTER
 
@@ -1059,6 +1087,17 @@
 OBMC_SUBPIX_VAR(128, 128)
 #endif  // CONFIG_EXT_PARTITION
 
+#if CONFIG_EXT_PARTITION_TYPES
+OBMC_VAR(4, 16)
+OBMC_SUBPIX_VAR(4, 16)
+OBMC_VAR(16, 4)
+OBMC_SUBPIX_VAR(16, 4)
+OBMC_VAR(8, 32)
+OBMC_SUBPIX_VAR(8, 32)
+OBMC_VAR(32, 8)
+OBMC_SUBPIX_VAR(32, 8)
+#endif
+
 #if CONFIG_HIGHBITDEPTH
 static INLINE void highbd_obmc_variance64(const uint8_t *pre8, int pre_stride,
                                           const int32_t *wsrc,
@@ -1240,5 +1279,16 @@
 HIGHBD_OBMC_VAR(128, 128)
 HIGHBD_OBMC_SUBPIX_VAR(128, 128)
 #endif  // CONFIG_EXT_PARTITION
+
+#if CONFIG_EXT_PARTITION_TYPES
+HIGHBD_OBMC_VAR(4, 16)
+HIGHBD_OBMC_SUBPIX_VAR(4, 16)
+HIGHBD_OBMC_VAR(16, 4)
+HIGHBD_OBMC_SUBPIX_VAR(16, 4)
+HIGHBD_OBMC_VAR(8, 32)
+HIGHBD_OBMC_SUBPIX_VAR(8, 32)
+HIGHBD_OBMC_VAR(32, 8)
+HIGHBD_OBMC_SUBPIX_VAR(32, 8)
+#endif
 #endif  // CONFIG_HIGHBITDEPTH
 #endif  // CONFIG_AV1 && CONFIG_MOTION_VAR