Add PESQ precompiled tool for audio quality testing

BUG=webrtc:7229

Review-Url: https://codereview.webrtc.org/2715933003
Cr-Commit-Position: refs/heads/master@{#17055}

tools-webrtc/download_tools.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+# Copyright (c) 2016 The WebRTC 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.
+
+"""Downloads precompiled tools.
+
+These are checked into the repository as SHA-1 hashes (see *.sha1 files in
+subdirectories). Note that chrome-webrtc-resources is a Google-internal bucket,
+so please download and compile these tools manually if this script fails.
+"""
+
+import os
+import subprocess
+import sys
+
+
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+def main(directories):
+  if not directories:
+    directories = [SCRIPT_DIR]
+
+  for path in directories:
+    cmd = [
+      'download_from_google_storage',
+      '--directory',
+      '--num_threads=10',
+      '--bucket', 'chrome-webrtc-resources',
+      '--auto_platform',
+      '--recursive',
+      path,
+    ]
+    print 'Downloading precompiled tools...'
+    subprocess.check_call(cmd)
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))