Index: source/libvpx/examples/resize_util.c |
=================================================================== |
--- source/libvpx/examples/resize_util.c (revision 0) |
+++ source/libvpx/examples/resize_util.c (revision 0) |
@@ -0,0 +1,120 @@ |
+/* |
+ * 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 <limits.h> |
+#include <math.h> |
+#include <stdio.h> |
+#include <stdlib.h> |
+#include <string.h> |
+ |
+#include "./vp9/encoder/vp9_resize.h" |
+ |
+static void usage(char *progname) { |
+ printf("Usage:\n"); |
+ printf("%s <input_yuv> <width>x<height> <target_width>x<target_height> ", |
+ progname); |
+ printf("<output_yuv> [<frames>]\n"); |
+} |
+ |
+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; |
+ |
+ if (argc < 5) { |
+ printf("Incorrect parameters:\n"); |
+ usage(argv[0]); |
+ return 1; |
+ } |
+ |
+ fin = argv[1]; |
+ fout = argv[4]; |
+ if (!parse_dim(argv[2], &width, &height)) { |
+ printf("Incorrect parameters: %s\n", argv[2]); |
+ usage(argv[0]); |
+ return 1; |
+ } |
+ if (!parse_dim(argv[3], &target_width, &target_height)) { |
+ printf("Incorrect parameters: %s\n", argv[3]); |
+ usage(argv[0]); |
+ return 1; |
+ } |
+ |
+ fpin = fopen(fin, "rb"); |
+ if (fpin == NULL) { |
+ printf("Can't open file %s to read\n", fin); |
+ usage(argv[0]); |
+ return 1; |
+ } |
+ fpout = fopen(fout, "wb"); |
+ if (fpout == NULL) { |
+ printf("Can't open file %s to write\n", fout); |
+ usage(argv[0]); |
+ 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; |
+ vp9_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; |
+} |