Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 124 insertions, 0 deletions

diff --git a/third_party/aom/examples/resize_util.c b/third_party/aom/examples/resize_util.c
new file mode 100644
index 000000000..5485691a8
--- /dev/null
+++ b/third_party/aom/examples/resize_util.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../tools_common.h"
+#include "../av1/encoder/av1_resize.h"
+
+static const char *exec_name = NULL;
+
+static void usage() {
+  printf("Usage:\n");
+  printf("%s <input_yuv> <width>x<height> <target_width>x<target_height> ",
+         exec_name);
+  printf("<output_yuv> [<frames>]\n");
+}
+
+void usage_exit(void) {
+  usage();
+  exit(EXIT_FAILURE);
+}
+
+static int parse_dim(char *v, int *width, int *height) {
+  char *x = strchr(v, 'x');
+  if (x == NULL) x = strchr(v, 'X');
+  if (x == NULL) return 0;
+  *width = atoi(v);
+  *height = atoi(&x[1]);
+  if (*width <= 0 || *height <= 0)
+    return 0;
+  else
+    return 1;
+}
+
+int main(int argc, char *argv[]) {
+  char *fin, *fout;
+  FILE *fpin, *fpout;
+  uint8_t *inbuf, *outbuf;
+  uint8_t *inbuf_u, *outbuf_u;
+  uint8_t *inbuf_v, *outbuf_v;
+  int f, frames;
+  int width, height, target_width, target_height;
+
+  exec_name = argv[0];
+
+  if (argc < 5) {
+    printf("Incorrect parameters:\n");
+    usage();
+    return 1;
+  }
+
+  fin = argv[1];
+  fout = argv[4];
+  if (!parse_dim(argv[2], &width, &height)) {
+    printf("Incorrect parameters: %s\n", argv[2]);
+    usage();
+    return 1;
+  }
+  if (!parse_dim(argv[3], &target_width, &target_height)) {
+    printf("Incorrect parameters: %s\n", argv[3]);
+    usage();
+    return 1;
+  }
+
+  fpin = fopen(fin, "rb");
+  if (fpin == NULL) {
+    printf("Can't open file %s to read\n", fin);
+    usage();
+    return 1;
+  }
+  fpout = fopen(fout, "wb");
+  if (fpout == NULL) {
+    printf("Can't open file %s to write\n", fout);
+    usage();
+    return 1;
+  }
+  if (argc >= 6)
+    frames = atoi(argv[5]);
+  else
+    frames = INT_MAX;
+
+  printf("Input size:  %dx%d\n", width, height);
+  printf("Target size: %dx%d, Frames: ", target_width, target_height);
+  if (frames == INT_MAX)
+    printf("All\n");
+  else
+    printf("%d\n", frames);
+
+  inbuf = (uint8_t *)malloc(width * height * 3 / 2);
+  outbuf = (uint8_t *)malloc(target_width * target_height * 3 / 2);
+  inbuf_u = inbuf + width * height;
+  inbuf_v = inbuf_u + width * height / 4;
+  outbuf_u = outbuf + target_width * target_height;
+  outbuf_v = outbuf_u + target_width * target_height / 4;
+  f = 0;
+  while (f < frames) {
+    if (fread(inbuf, width * height * 3 / 2, 1, fpin) != 1) break;
+    av1_resize_frame420(inbuf, width, inbuf_u, inbuf_v, width / 2, height,
+                        width, outbuf, target_width, outbuf_u, outbuf_v,
+                        target_width / 2, target_height, target_width);
+    fwrite(outbuf, target_width * target_height * 3 / 2, 1, fpout);
+    f++;
+  }
+  printf("%d frames processed\n", f);
+  fclose(fpin);
+  fclose(fpout);
+
+  free(inbuf);
+  free(outbuf);
+  return 0;
+}