Support 64x16 and 16x64 rect intra transform sizes

Change-Id: I701f3a279c5b0f64df10b9c5daae8dd10498080b

aom_dsp/intrapred.c

@@ -953,6 +953,8 @@ static INLINE void highbd_dc_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
   intra_pred_sized(type, 16, 4) \
   intra_pred_sized(type, 8, 32) \
   intra_pred_sized(type, 32, 8) \
+  intra_pred_sized(type, 16, 64) \
+  intra_pred_sized(type, 64, 16) \
   intra_pred_highbd_sized(type, 4, 8) \
   intra_pred_highbd_sized(type, 8, 4) \
   intra_pred_highbd_sized(type, 8, 16) \
@@ -964,7 +966,9 @@ static INLINE void highbd_dc_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
   intra_pred_highbd_sized(type, 4, 16) \
   intra_pred_highbd_sized(type, 16, 4) \
   intra_pred_highbd_sized(type, 8, 32) \
-  intra_pred_highbd_sized(type, 32, 8)
+  intra_pred_highbd_sized(type, 32, 8) \
+  intra_pred_highbd_sized(type, 16, 64) \
+  intra_pred_highbd_sized(type, 64, 16)
 #define intra_pred_above_4x4(type) \
   intra_pred_sized(type, 8, 8) \
   intra_pred_sized(type, 16, 16) \

av1/common/common_data.h

@@ -682,14 +682,21 @@ static const TX_SIZE max_txsize_rect_intra_lookup[BLOCK_SIZES_ALL] = {
   TX_4X16,   TX_16X4,
   // 8x32,   32x8
   TX_8X32,   TX_32X8,
+#if CONFIG_TX64X64
+  // 16x64,  64x16
+  TX_16X64,  TX_64X16,
+#else
+  // 16x64,  64x16
+  TX_16X32,  TX_32X16,
+#endif  // CONFIG_TX64X64
 #else
   // 4x16,   16x4,
   TX_4X8,    TX_8X4,
   // 8x32,   32x8
   TX_8X16,   TX_16X8,
-#endif  // CONFIG_EXT_PARTITION_TYPES && CONFIG_RECT_TX_EXT_INTRA
   // 16x64,  64x16
   TX_16X32,  TX_32X16,
+#endif  // CONFIG_EXT_PARTITION_TYPES && CONFIG_RECT_TX_EXT_INTRA
 #if CONFIG_EXT_PARTITION
 #if CONFIG_TX64X64
   // 32x128  128x32

av1/common/reconintra.c

@@ -675,7 +675,9 @@ static void av1_init_intra_predictors_internal(void) {
   p[TX_4X16] = aom_##type##_predictor_4x16;   \
   p[TX_16X4] = aom_##type##_predictor_16x4;   \
   p[TX_8X32] = aom_##type##_predictor_8x32;   \
-  p[TX_32X8] = aom_##type##_predictor_32x8;
+  p[TX_32X8] = aom_##type##_predictor_32x8;   \
+  p[TX_16X64] = aom_##type##_predictor_16x64; \
+  p[TX_64X16] = aom_##type##_predictor_64x16;
 #else
 #define INIT_RECTANGULAR(p, type)             \
   p[TX_4X8] = aom_##type##_predictor_4x8;     \