Adds a non-normative resize library to vp9 encoder

Adds an arbitrary-size resize library for use in scaling of input
frames in a non-normative manner in the vp9 encoder. The method
used is as follows:
Downsampling - Uses a 8 tap filter for factor of 2 decimation upto
a size just higher than the desired size. Then interpolates pixels
at a precision of 1/32 pel using a set of 8-tap filters.
Upsampling - Interpolates pixels at a precision of 1/32 pel using
a set of 8-tap filters.

There is no assembly optimization yet.

Change-Id: Ib5b81e174fc139da322bb97c8214d52289d60d8a

3 files changed, 525 insertions, 2 deletions

diff --git a/vp9/encoder/vp9_onyx_if.c b/vp9/encoder/vp9_onyx_if.c
index 3e1daca28..2b3070607 100644
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -36,6 +36,7 @@
 #include "vp9/encoder/vp9_segmentation.h"
 #include "vp9/encoder/vp9_temporal_filter.h"
 #include "vp9/encoder/vp9_vaq.h"
+#include "vp9/encoder/vp9_resize.h"
 
 #include "vpx_ports/vpx_timer.h"
 
@@ -2295,6 +2296,42 @@ void vp9_write_yuv_rec_frame(VP9_COMMON *cm) {
 }
 #endif
 
+static void scale_and_extend_frame_nonnormative(YV12_BUFFER_CONFIG *src_fb,
+                                                YV12_BUFFER_CONFIG *dst_fb) {
+  const int in_w = src_fb->y_crop_width;
+  const int in_h = src_fb->y_crop_height;
+  const int out_w = dst_fb->y_crop_width;
+  const int out_h = dst_fb->y_crop_height;
+  const int in_w_uv = src_fb->uv_crop_width;
+  const int in_h_uv = src_fb->uv_crop_height;
+  const int out_w_uv = dst_fb->uv_crop_width;
+  const int out_h_uv = dst_fb->uv_crop_height;
+  int i;
+
+  uint8_t *srcs[4] = {src_fb->y_buffer, src_fb->u_buffer, src_fb->v_buffer,
+    src_fb->alpha_buffer};
+  int src_strides[4] = {src_fb->y_stride, src_fb->uv_stride, src_fb->uv_stride,
+    src_fb->alpha_stride};
+
+  uint8_t *dsts[4] = {dst_fb->y_buffer, dst_fb->u_buffer, dst_fb->v_buffer,
+    dst_fb->alpha_buffer};
+  int dst_strides[4] = {dst_fb->y_stride, dst_fb->uv_stride, dst_fb->uv_stride,
+    dst_fb->alpha_stride};
+
+  for (i = 0; i < MAX_MB_PLANE; ++i) {
+    if (i == 0 || i == 3) {
+      // Y and alpha planes
+      vp9_resize_plane(srcs[i], in_h, in_w, src_strides[i],
+                       dsts[i], out_h, out_w, dst_strides[i]);
+    } else {
+      // Chroma planes
+      vp9_resize_plane(srcs[i], in_h_uv, in_w_uv, src_strides[i],
+                       dsts[i], out_h_uv, out_w_uv, dst_strides[i]);
+    }
+  }
+  vp8_yv12_extend_frame_borders(dst_fb);
+}
+
 static void scale_and_extend_frame(YV12_BUFFER_CONFIG *src_fb,
                                    YV12_BUFFER_CONFIG *dst_fb) {
   const int in_w = src_fb->y_crop_width;
@@ -2316,7 +2353,7 @@ static void scale_and_extend_frame(YV12_BUFFER_CONFIG *src_fb,
   for (y = 0; y < out_h; y += 16) {
     for (x = 0; x < out_w; x += 16) {
       for (i = 0; i < MAX_MB_PLANE; ++i) {
-        const int factor = i == 0 ? 1 : 2;
+        const int factor = (i == 0 || i == 3 ? 1 : 2);
         const int x_q4 = x * (16 / factor) * in_w / out_w;
         const int y_q4 = y * (16 / factor) * in_h / out_h;
         const int src_stride = src_strides[i];
@@ -2924,7 +2961,8 @@ static void encode_frame_to_data_rate(VP9_COMP *cpi,
   /* Scale the source buffer, if required. */
   if (cm->mi_cols * 8 != cpi->un_scaled_source->y_width ||
       cm->mi_rows * 8 != cpi->un_scaled_source->y_height) {
-    scale_and_extend_frame(cpi->un_scaled_source, &cpi->scaled_source);
+    scale_and_extend_frame_nonnormative(cpi->un_scaled_source,
+                                        &cpi->scaled_source);
     cpi->Source = &cpi->scaled_source;
   } else {
     cpi->Source = cpi->un_scaled_source;
diff --git a/vp9/encoder/vp9_resize.c b/vp9/encoder/vp9_resize.c
new file mode 100644
index 000000000..b4eba6385
--- /dev/null
+++ b/vp9/encoder/vp9_resize.c
@@ -0,0 +1,418 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "vp9/common/vp9_common.h"
+#include "vp9/encoder/vp9_resize.h"
+
+#define FILTER_BITS               7
+
+#define INTERP_TAPS               8
+#define SUBPEL_BITS               5
+#define SUBPEL_MASK               ((1 << SUBPEL_BITS) - 1)
+#define INTERP_PRECISION_BITS     32
+
+#define ROUND_POWER_OF_TWO(value, n) \
+    (((value) + (1 << ((n) - 1))) >> (n))
+
+typedef int16_t interp_kernel[INTERP_TAPS];
+
+// Filters for interpolation - note this also filters integer pels.
+const interp_kernel vp9_filteredinterp_filters[(1 << SUBPEL_BITS)] = {
+  {-1, -8, 33, 80, 33, -8, -1, 0},
+  {-1, -8, 30, 80, 35, -8, -1, 1},
+  {-1, -8, 28, 80, 37, -7, -2, 1},
+  {0, -8, 26, 79, 39, -7, -2, 1},
+  {0, -8, 24, 79, 41, -7, -2, 1},
+  {0, -8, 22, 78, 43, -6, -2, 1},
+  {0, -8, 20, 78, 45, -5, -3, 1},
+  {0, -8, 18, 77, 48, -5, -3, 1},
+  {0, -8, 16, 76, 50, -4, -3, 1},
+  {0, -8, 15, 75, 52, -3, -4, 1},
+  {0, -7, 13, 74, 54, -3, -4, 1},
+  {0, -7, 11, 73, 56, -2, -4, 1},
+  {0, -7, 10, 71, 58, -1, -4, 1},
+  {1, -7,  8, 70, 60,  0, -5, 1},
+  {1, -6,  6, 68, 62,  1, -5, 1},
+  {1, -6,  5, 67, 63,  2, -5, 1},
+  {1, -6,  4, 65, 65,  4, -6, 1},
+  {1, -5,  2, 63, 67,  5, -6, 1},
+  {1, -5,  1, 62, 68,  6, -6, 1},
+  {1, -5,  0, 60, 70,  8, -7, 1},
+  {1, -4, -1, 58, 71, 10, -7, 0},
+  {1, -4, -2, 56, 73, 11, -7, 0},
+  {1, -4, -3, 54, 74, 13, -7, 0},
+  {1, -4, -3, 52, 75, 15, -8, 0},
+  {1, -3, -4, 50, 76, 16, -8, 0},
+  {1, -3, -5, 48, 77, 18, -8, 0},
+  {1, -3, -5, 45, 78, 20, -8, 0},
+  {1, -2, -6, 43, 78, 22, -8, 0},
+  {1, -2, -7, 41, 79, 24, -8, 0},
+  {1, -2, -7, 39, 79, 26, -8, 0},
+  {1, -2, -7, 37, 80, 28, -8, -1},
+  {1, -1, -8, 35, 80, 30, -8, -1},
+};
+
+// Filters for factor of 2 downsampling.
+static const int16_t vp9_down2_symeven_half_filter[] = {56, 12, -3, -1};
+static const int16_t vp9_down2_symodd_half_filter[] = {64, 35, 0, -3};
+
+static void interpolate(const uint8_t *const input, int inlength,
+                        uint8_t *output, int outlength) {
+  const int64_t delta = (((uint64_t)inlength << 32) + outlength / 2) /
+      outlength;
+  const int64_t offset = inlength > outlength ?
+      (((int64_t)(inlength - outlength) << 31) + outlength / 2) / outlength :
+      -(((int64_t)(outlength - inlength) << 31) + outlength / 2) / outlength;
+  uint8_t *optr = output;
+  int x, x1, x2, sum, k, int_pel, sub_pel;
+  int64_t y;
+
+  x = 0;
+  y = offset;
+  while ((y >> INTERP_PRECISION_BITS) < (INTERP_TAPS / 2 - 1)) {
+    x++;
+    y += delta;
+  }
+  x1 = x;
+  x = outlength - 1;
+  y = delta * x + offset;
+  while ((y >> INTERP_PRECISION_BITS) +
+         (int64_t)(INTERP_TAPS / 2) >= inlength) {
+    x--;
+    y -= delta;
+  }
+  x2 = x;
+  if (x1 > x2) {
+    for (x = 0, y = offset; x < outlength; ++x, y += delta) {
+      const int16_t *filter;
+      int_pel = y >> INTERP_PRECISION_BITS;
+      sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+      filter = vp9_filteredinterp_filters[sub_pel];
+      sum = 0;
+      for (k = 0; k < INTERP_TAPS; ++k) {
+        const int pk = int_pel - INTERP_TAPS / 2 + 1 + k;
+        sum += filter[k] * input[(pk < 0 ? 0 :
+                                  (pk >= inlength ? inlength - 1 : pk))];
+      }
+      *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS));
+    }
+  } else {
+    // Initial part.
+    for (x = 0, y = offset; x < x1; ++x, y += delta) {
+      const int16_t *filter;
+      int_pel = y >> INTERP_PRECISION_BITS;
+      sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+      filter = vp9_filteredinterp_filters[sub_pel];
+      sum = 0;
+      for (k = 0; k < INTERP_TAPS; ++k)
+        sum += filter[k] * input[(int_pel - INTERP_TAPS / 2 + 1 + k < 0 ?
+                                  0 :
+                                  int_pel - INTERP_TAPS / 2 + 1 + k)];
+      *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS));
+    }
+    // Middle part.
+    for (; x <= x2; ++x, y += delta) {
+      const int16_t *filter;
+      int_pel = y >> INTERP_PRECISION_BITS;
+      sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+      filter = vp9_filteredinterp_filters[sub_pel];
+      sum = 0;
+      for (k = 0; k < INTERP_TAPS; ++k)
+        sum += filter[k] * input[int_pel - INTERP_TAPS / 2 + 1 + k];
+      *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS));
+    }
+    // End part.
+    for (; x < outlength; ++x, y += delta) {
+      const int16_t *filter;
+      int_pel = y >> INTERP_PRECISION_BITS;
+      sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+      filter = vp9_filteredinterp_filters[sub_pel];
+      sum = 0;
+      for (k = 0; k < INTERP_TAPS; ++k)
+        sum += filter[k] * input[(int_pel - INTERP_TAPS / 2 + 1 + k >=
+                                  inlength ?  inlength - 1 :
+                                  int_pel - INTERP_TAPS / 2 + 1 + k)];
+      *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS));
+    }
+  }
+}
+
+static void down2_symeven(const uint8_t *const input, int length,
+                          uint8_t *output) {
+  // Actual filter len = 2 * filter_len_half.
+  static const int16_t *filter = vp9_down2_symeven_half_filter;
+  const int filter_len_half = sizeof(vp9_down2_symeven_half_filter) / 2;
+  int i, j;
+  uint8_t *optr = output;
+  int l1 = filter_len_half;
+  int l2 = (length - filter_len_half);
+  l1 += (l1 & 1);
+  l2 += (l2 & 1);
+  if (l1 > l2) {
+    // Short input length.
+    for (i = 0; i < length; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1));
+      for (j = 0; j < filter_len_half; ++j) {
+        sum += (input[(i - j < 0 ? 0 : i - j)] +
+                input[(i + 1 + j >= length ? length - 1 : i + 1 + j)]) *
+            filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+  } else {
+    // Initial part.
+    for (i = 0; i < l1; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1));
+      for (j = 0; j < filter_len_half; ++j) {
+        sum += (input[(i - j < 0 ? 0 : i - j)] + input[i + 1 + j]) * filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+    // Middle part.
+    for (; i < l2; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1));
+      for (j = 0; j < filter_len_half; ++j) {
+        sum += (input[i - j] + input[i + 1 + j]) * filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+    // End part.
+    for (; i < length; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1));
+      for (j = 0; j < filter_len_half; ++j) {
+        sum += (input[i - j] +
+                input[(i + 1 + j >= length ? length - 1 : i + 1 + j)]) *
+            filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+  }
+}
+
+static void down2_symodd(const uint8_t *const input, int length,
+                         uint8_t *output) {
+  // Actual filter len = 2 * filter_len_half - 1.
+  static const int16_t *filter = vp9_down2_symodd_half_filter;
+  const int filter_len_half = sizeof(vp9_down2_symodd_half_filter) / 2;
+  int i, j;
+  uint8_t *optr = output;
+  int l1 = filter_len_half - 1;
+  int l2 = (length - filter_len_half + 1);
+  l1 += (l1 & 1);
+  l2 += (l2 & 1);
+  if (l1 > l2) {
+    // Short input length.
+    for (i = 0; i < length; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+      for (j = 1; j < filter_len_half; ++j) {
+        sum += (input[(i - j < 0 ? 0 : i - j)] +
+                input[(i + j >= length ? length - 1 : i + j)]) *
+            filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+  } else {
+    // Initial part.
+    for (i = 0; i < l1; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+      for (j = 1; j < filter_len_half; ++j) {
+        sum += (input[(i - j < 0 ? 0 : i - j)] + input[i + j]) * filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+    // Middle part.
+    for (; i < l2; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+      for (j = 1; j < filter_len_half; ++j) {
+        sum += (input[i - j] + input[i + j]) * filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+    // End part.
+    for (; i < length; i += 2) {
+      int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+      for (j = 1; j < filter_len_half; ++j) {
+        sum += (input[i - j] + input[(i + j >= length ? length - 1 : i + j)]) *
+            filter[j];
+      }
+      sum >>= FILTER_BITS;
+      *optr++ = clip_pixel(sum);
+    }
+  }
+}
+
+static int get_down2_length(int length, int steps) {
+  int s;
+  for (s = 0; s < steps; ++s)
+    length = (length + 1) >> 1;
+  return length;
+}
+
+int get_down2_steps(int in_length, int out_length) {
+  int steps = 0;
+  int proj_in_length;
+  while ((proj_in_length = get_down2_length(in_length, 1)) >= out_length) {
+    ++steps;
+    in_length = proj_in_length;
+  }
+  return steps;
+}
+
+static void resize_multistep(const uint8_t *const input,
+                             int length,
+                             uint8_t *output,
+                             int olength,
+                             uint8_t *buf) {
+  int steps;
+  if (length == olength) {
+    memcpy(output, input, sizeof(uint8_t) * length);
+    return;
+  }
+  steps = get_down2_steps(length, olength);
+
+  if (steps > 0) {
+    int s;
+    uint8_t *out = NULL;
+    uint8_t *tmpbuf = NULL;
+    uint8_t *otmp, *otmp2;
+    int filteredlength = length;
+    if (!tmpbuf) {
+      tmpbuf = (uint8_t *)malloc(sizeof(uint8_t) * length);
+      otmp = tmpbuf;
+    } else {
+      otmp = buf;
+    }
+    otmp2 = otmp + get_down2_length(length, 1);
+    for (s = 0; s < steps; ++s) {
+      const int proj_filteredlength = get_down2_length(filteredlength, 1);
+      const uint8_t *const in = (s == 0 ? input : out);
+      if (s == steps - 1 && proj_filteredlength == olength)
+        out = output;
+      else
+        out = (s & 1 ? otmp2 : otmp);
+      if (filteredlength & 1)
+        down2_symodd(in, filteredlength, out);
+      else
+        down2_symeven(in, filteredlength, out);
+      filteredlength = proj_filteredlength;
+    }
+    if (filteredlength != olength) {
+      interpolate(out, filteredlength, output, olength);
+    }
+    if (tmpbuf)
+      free(tmpbuf);
+  } else {
+    interpolate(input, length, output, olength);
+  }
+}
+
+static void fill_col_to_arr(uint8_t *img, int stride, int len, uint8_t *arr) {
+  int i;
+  uint8_t *iptr = img;
+  uint8_t *aptr = arr;
+  for (i = 0; i < len; ++i, iptr += stride) {
+    *aptr++ = *iptr;
+  }
+}
+
+static void fill_arr_to_col(uint8_t *img, int stride, int len, uint8_t *arr) {
+  int i;
+  uint8_t *iptr = img;
+  uint8_t *aptr = arr;
+  for (i = 0; i < len; ++i, iptr += stride) {
+    *iptr = *aptr++;
+  }
+}
+
+void vp9_resize_plane(const uint8_t *const input,
+                      int height,
+                      int width,
+                      int in_stride,
+                      uint8_t *output,
+                      int height2,
+                      int width2,
+                      int out_stride) {
+  int i;
+  uint8_t *intbuf = (uint8_t *)malloc(sizeof(uint8_t) * width2 * height);
+  uint8_t *tmpbuf = (uint8_t *)malloc(sizeof(uint8_t) *
+                                      (width < height ? height : width));
+  uint8_t *arrbuf = (uint8_t *)malloc(sizeof(uint8_t) * (height + height2));
+  for (i = 0; i < height; ++i)
+    resize_multistep(input + in_stride * i, width,
+                        intbuf + width2 * i, width2, tmpbuf);
+  for (i = 0; i < width2; ++i) {
+    fill_col_to_arr(intbuf + i, width2, height, arrbuf);
+    resize_multistep(arrbuf, height, arrbuf + height, height2, tmpbuf);
+    fill_arr_to_col(output + i, out_stride, height2, arrbuf + height);
+  }
+  free(intbuf);
+  free(tmpbuf);
+  free(arrbuf);
+}
+
+void vp9_resize_frame420(const uint8_t *const y,
+                         int y_stride,
+                         const uint8_t *const u, const uint8_t *const v,
+                         int uv_stride,
+                         int height, int width,
+                         uint8_t *oy, int oy_stride,
+                         uint8_t *ou, uint8_t *ov, int ouv_stride,
+                         int oheight, int owidth) {
+  vp9_resize_plane(y, height, width, y_stride,
+                   oy, oheight, owidth, oy_stride);
+  vp9_resize_plane(u, height / 2, width / 2, uv_stride,
+                   ou, oheight / 2, owidth / 2, ouv_stride);
+  vp9_resize_plane(v, height / 2, width / 2, uv_stride,
+                   ov, oheight / 2, owidth / 2, ouv_stride);
+}
+
+void vp9_resize_frame422(const uint8_t *const y, int y_stride,
+                         const uint8_t *const u, const uint8_t *const v,
+                         int uv_stride,
+                         int height, int width,
+                         uint8_t *oy, int oy_stride,
+                         uint8_t *ou, uint8_t *ov, int ouv_stride,
+                         int oheight, int owidth) {
+  vp9_resize_plane(y, height, width, y_stride,
+                   oy, oheight, owidth, oy_stride);
+  vp9_resize_plane(u, height, width / 2, uv_stride,
+                   ou, oheight, owidth / 2, ouv_stride);
+  vp9_resize_plane(v, height, width / 2, uv_stride,
+                   ov, oheight, owidth / 2, ouv_stride);
+}
+
+void vp9_resize_frame444(const uint8_t *const y, int y_stride,
+                         const uint8_t *const u, const uint8_t *const v,
+                         int uv_stride,
+                         int height, int width,
+                         uint8_t *oy, int oy_stride,
+                         uint8_t *ou, uint8_t *ov, int ouv_stride,
+                         int oheight, int owidth) {
+  vp9_resize_plane(y, height, width, y_stride,
+                   oy, oheight, owidth, oy_stride);
+  vp9_resize_plane(u, height, width, uv_stride,
+                   ou, oheight, owidth, ouv_stride);
+  vp9_resize_plane(v, height, width, uv_stride,
+                   ov, oheight, owidth, ouv_stride);
+}
diff --git a/vp9/encoder/vp9_resize.h b/vp9/encoder/vp9_resize.h
new file mode 100644
index 000000000..c67595a3f
--- /dev/null
+++ b/vp9/encoder/vp9_resize.h
@@ -0,0 +1,67 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP9_ENCODER_VP9_RESIZE_H_
+#define VP9_ENCODER_VP9_RESIZE_H_
+
+#include <stdio.h>
+
+void vp9_resize_plane(const uint8_t *const input,
+                      int height,
+                      int width,
+                      int in_stride,
+                      uint8_t *output,
+                      int height2,
+                      int width2,
+                      int out_stride);
+void vp9_resize_frame420(const uint8_t *const y,
+                         int y_stride,
+                         const uint8_t *const u,
+                         const uint8_t *const v,
+                         int uv_stride,
+                         int height,
+                         int width,
+                         uint8_t *oy,
+                         int oy_stride,
+                         uint8_t *ou,
+                         uint8_t *ov,
+                         int ouv_stride,
+                         int oheight,
+                         int owidth);
+void vp9_resize_frame422(const uint8_t *const y,
+                         int y_stride,
+                         const uint8_t *const u,
+                         const uint8_t *const v,
+                         int uv_stride,
+                         int height,
+                         int width,
+                         uint8_t *oy,
+                         int oy_stride,
+                         uint8_t *ou,
+                         uint8_t *ov,
+                         int ouv_stride,
+                         int oheight,
+                         int owidth);
+void vp9_resize_frame444(const uint8_t *const y,
+                         int y_stride,
+                         const uint8_t *const u,
+                         const uint8_t *const v,
+                         int uv_stride,
+                         int height,
+                         int width,
+                         uint8_t *oy,
+                         int oy_stride,
+                         uint8_t *ou,
+                         uint8_t *ov,
+                         int ouv_stride,
+                         int oheight,
+                         int owidth);
+
+#endif    // VP9_ENCODER_VP9_RESIZE_H_