libvpx: Pull from upstream

source/libvpx/examples/decode_to_md5.c

 /*
  *  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.
  */
 
@@ skipping 20 matching lines @@
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #define VPX_CODEC_DISABLE_COMPAT 1
 
 #include "vpx/vp8dx.h"
 #include "vpx/vpx_decoder.h"
 
-#include "./ivfdec.h"
 #include "./md5_utils.h"
 #include "./tools_common.h"
+#include "./video_reader.h"
 #include "./vpx_config.h"
 
 static void get_image_md5(const vpx_image_t *img, unsigned char digest[16]) {
   int plane, y;
   MD5Context md5;
 
   MD5Init(&md5);
 
   for (plane = 0; plane < 3; ++plane) {
     const unsigned char *buf = img->planes[plane];
@@ skipping 18 matching lines @@
 }
 
 static const char *exec_name;
 
 void usage_exit() {
   fprintf(stderr, "Usage: %s <infile> <outfile>\n", exec_name);
   exit(EXIT_FAILURE);
 }
 
 int main(int argc, char **argv) {
-  FILE *infile, *outfile;
+  int frame_cnt = 0;
+  FILE *outfile = NULL;
   vpx_codec_ctx_t codec;
-  vpx_codec_iface_t *iface;
-  int flags = 0, frame_cnt = 0;
-  vpx_video_t *video;
+  VpxVideoReader *reader = NULL;
+  const VpxVideoInfo *info = NULL;
+  const VpxInterface *decoder = NULL;
 
   exec_name = argv[0];
 
   if (argc != 3)
-    die("Invalid number of arguments");
+    die("Invalid number of arguments.");
 
-  if (!(infile = fopen(argv[1], "rb")))
-    die("Failed to open %s for reading", argv[1]);
+  reader = vpx_video_reader_open(argv[1]);
+  if (!reader)
+    die("Failed to open %s for reading.", argv[1]);
 
   if (!(outfile = fopen(argv[2], "wb")))
-    die("Failed to open %s for writing", argv[2]);
+    die("Failed to open %s for writing.", argv[2]);
 
-  video = vpx_video_open_file(infile);
-  if (!video)
-    die("%s is not an IVF file.", argv[1]);
+  info = vpx_video_reader_get_info(reader);
 
-  iface = get_codec_interface(vpx_video_get_fourcc(video));
-  if (!iface)
-    die("Unknown FOURCC code.");
+  decoder = get_vpx_decoder_by_fourcc(info->codec_fourcc);
+  if (!decoder)
+    die("Unknown input codec.");
 
-  printf("Using %s\n", vpx_codec_iface_name(iface));
+  printf("Using %s\n", vpx_codec_iface_name(decoder->interface()));
 
-  if (vpx_codec_dec_init(&codec, iface, NULL, flags))
+  if (vpx_codec_dec_init(&codec, decoder->interface(), NULL, 0))
     die_codec(&codec, "Failed to initialize decoder");
 
-  while (vpx_video_read_frame(video)) {
+  while (vpx_video_reader_read_frame(reader)) {
     vpx_codec_iter_t iter = NULL;
     vpx_image_t *img = NULL;
     size_t frame_size = 0;
-    const unsigned char *frame = vpx_video_get_frame(video, &frame_size);
+    const unsigned char *frame = vpx_video_reader_get_frame(reader,
+                                                            &frame_size);
     if (vpx_codec_decode(&codec, frame, frame_size, NULL, 0))
       die_codec(&codec, "Failed to decode frame");
 
     while ((img = vpx_codec_get_frame(&codec, &iter)) != NULL) {
       unsigned char digest[16];
 
       get_image_md5(img, digest);
       print_md5(outfile, digest);
       fprintf(outfile, "  img-%dx%d-%04d.i420\n",
               img->d_w, img->d_h, ++frame_cnt);
     }
   }
 
   printf("Processed %d frames.\n", frame_cnt);
   if (vpx_codec_destroy(&codec))
-    die_codec(&codec, "Failed to destroy codec");
+    die_codec(&codec, "Failed to destroy codec.");
 
-  vpx_video_close(video);
+  vpx_video_reader_close(reader);
 
   fclose(outfile);
-  fclose(infile);
   return EXIT_SUCCESS;
 }