Added metrics test code for the FEC packet masks.

The test computes metrics (average residual loss) for each mask type and size, 
for a given set of loss models (random and bursty), and verifies various 
behaviour of the codes (including relation/comparison to RS code).
Review URL: https://webrtc-codereview.appspot.com/748008

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3185 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/rtp_rtcp/test/testFec/average_residual_loss_xor_codes.h

@@ -0,0 +1,188 @@
+/*
+ *  Copyright (c) 2012 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.
+ */
+
+namespace {
+
+// Maximum number of media packets allowed in this test. The burst mask types
+// are currently defined up to (kMaxMediaPacketsTest, kMaxMediaPacketsTest).
+const int kMaxMediaPacketsTest = 12;
+
+// Maximum number of FEC codes considered in this test.
+const int kNumberCodes = kMaxMediaPacketsTest * (kMaxMediaPacketsTest + 1) / 2;
+
+// For the random mask type: reference level for the maximum average residual
+// loss expected for each code size up to:
+// (kMaxMediaPacketsTest, kMaxMediaPacketsTest).
+const float kMaxResidualLossRandomMask[kNumberCodes] = {
+  0.009463,
+  0.022436,
+  0.007376,
+  0.033895,
+  0.012423,
+  0.004644,
+  0.043438,
+  0.019937,
+  0.008820,
+  0.003438,
+  0.051282,
+  0.025795,
+  0.012872,
+  0.006458,
+  0.003195,
+  0.057728,
+  0.032146,
+  0.016708,
+  0.009242,
+  0.005054,
+  0.003078,
+  0.063050,
+  0.037261,
+  0.021767,
+  0.012447,
+  0.007099,
+  0.003826,
+  0.002504,
+  0.067476,
+  0.042348,
+  0.026169,
+  0.015695,
+  0.009478,
+  0.005887,
+  0.003568,
+  0.001689,
+  0.071187,
+  0.046575,
+  0.031697,
+  0.019797,
+  0.012433,
+  0.007027,
+  0.004845,
+  0.002777,
+  0.001753,
+  0.074326,
+  0.050628,
+  0.034978,
+  0.021955,
+  0.014821,
+  0.009462,
+  0.006393,
+  0.004181,
+  0.003105,
+  0.001231,
+  0.077008,
+  0.054226,
+  0.038407,
+  0.026251,
+  0.018634,
+  0.011568,
+  0.008130,
+  0.004957,
+  0.003334,
+  0.002069,
+  0.001304,
+  0.079318,
+  0.057180,
+  0.041268,
+  0.028842,
+  0.020033,
+  0.014061,
+  0.009636,
+  0.006411,
+  0.004583,
+  0.002817,
+  0.001770,
+  0.001258
+};
+
+// For the bursty mask type: reference level for the maximum average residual
+// loss expected for each code size up to:
+// (kMaxMediaPacketsTest, kMaxMediaPacketsTest).
+const float kMaxResidualLossBurstyMask[kNumberCodes] = {
+  0.033236,
+  0.053344,
+  0.026616,
+  0.064129,
+  0.036589,
+  0.021892,
+  0.071055,
+  0.043890,
+  0.028009,
+  0.018524,
+  0.075968,
+  0.049828,
+  0.033288,
+  0.022791,
+  0.016088,
+  0.079672,
+  0.054586,
+  0.037872,
+  0.026679,
+  0.019326,
+  0.014293,
+  0.082582,
+  0.058719,
+  0.042045,
+  0.030504,
+  0.022391,
+  0.016894,
+  0.012946,
+  0.084935,
+  0.062169,
+  0.045620,
+  0.033713,
+  0.025570,
+  0.019439,
+  0.015121,
+  0.011920,
+  0.086881,
+  0.065267,
+  0.048721,
+  0.037613,
+  0.028278,
+  0.022152,
+  0.017314,
+  0.013791,
+  0.011130,
+  0.088516,
+  0.067911,
+  0.051709,
+  0.040819,
+  0.030777,
+  0.024547,
+  0.019689,
+  0.015877,
+  0.012773,
+  0.010516,
+  0.089909,
+  0.070332,
+  0.054402,
+  0.043210,
+  0.034096,
+  0.026625,
+  0.021823,
+  0.017648,
+  0.014649,
+  0.011982,
+  0.010035,
+  0.091109,
+  0.072428,
+  0.056775,
+  0.045418,
+  0.036679,
+  0.028599,
+  0.023693,
+  0.019966,
+  0.016603,
+  0.013690,
+  0.011359,
+  0.009657
+};
+
+}   // namespace

webrtc/modules/rtp_rtcp/test/testFec/test_fec.gypi

@@ -7,24 +7,38 @@
 # be found in the AUTHORS file in the root of the source tree.
 
 {
-  'targets': [
-    {
-      'target_name': 'test_fec',
+  'targets': [{   
+     'target_name': 'test_fec',
       'type': 'executable',
       'dependencies': [
         'rtp_rtcp',
         '<(webrtc_root)/test/test.gyp:test_support_main',
-      ],
-      
+      ],      
       'include_dirs': [
         '../../source',
         '../../../../system_wrappers/interface',
       ],
-   
       'sources': [
         'test_fec.cc',
+      ],         
+    },
+    {   
+      'target_name': 'test_packet_masks_metrics',
+      'type': 'executable',
+      'dependencies': [
+        'rtp_rtcp',
+        '<(webrtc_root)/test/test.gyp:test_support_main',
+        'rtp_rtcp',
+        '<(DEPTH)/testing/gtest.gyp:gtest',
+      ],      
+      'include_dirs': [
+        '../../source',
+        '<(webrtc_root)/system_wrappers/interface',
+      ],
+      'sources': [
+        'test_packet_masks_metrics.cc',
+        'average_residual_loss_xor_codes.h',
       ],
-      
     },
   ],
 }