Reland of Export library that generates an HTLM file with the scores organized in tables.

webrtc/modules/audio_processing/test/py_quality_assessment/quality_assessment/export.py

Index: webrtc/modules/audio_processing/test/py_quality_assessment/quality_assessment/export.py
diff --git a/webrtc/modules/audio_processing/test/py_quality_assessment/quality_assessment/export.py b/webrtc/modules/audio_processing/test/py_quality_assessment/quality_assessment/export.py
new file mode 100644
index 0000000000000000000000000000000000000000..5891b5fe24ca71867a96cdfad1ab1ccc174bd2ac
--- /dev/null
+++ b/webrtc/modules/audio_processing/test/py_quality_assessment/quality_assessment/export.py
@@ -0,0 +1,26 @@
+# Copyright (c) 2017 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.
+
+import logging
+import os
+
+class HtmlExport(object):
+
+  def __init__(self, output_path, output_filename):
+    self._output_path = output_path
+    self._output_filename = output_filename
+
+  def export(self, scores):
+    logging.debug('%d score names found', len(scores))
+    output_filepath = os.path.join(self._output_path, self._output_filename)
+
+    # TODO(alessio): remove once implemented
+    with open(output_filepath, 'w') as f:
+      f.write('APM Quality Assessment scores\n')
+
+    return output_filepath