Add SafeClamp(), which accepts args of different types

webrtc/tools/agc/activity_metric.cc

 /*
  *  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.
  */
 
 
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 #include <algorithm>
 #include <memory>
 
 #include "webrtc/base/flags.h"
+#include "webrtc/base/safe_minmax.h"
 #include "webrtc/modules/audio_processing/agc/agc.h"
 #include "webrtc/modules/audio_processing/agc/loudness_histogram.h"
 #include "webrtc/modules/audio_processing/agc/utility.h"
 #include "webrtc/modules/audio_processing/vad/common.h"
 #include "webrtc/modules/audio_processing/vad/pitch_based_vad.h"
 #include "webrtc/modules/audio_processing/vad/standalone_vad.h"
 #include "webrtc/modules/audio_processing/vad/vad_audio_proc.h"
 #include "webrtc/modules/include/module_common_types.h"
 #include "webrtc/test/gtest.h"
 
@@ skipping 84 matching lines @@
       double p[kMaxNumFrames] = {0.5, 0.5, 0.5, 0.5};
       if (FLAG_standalone_vad) {
         standalone_vad_->GetActivity(p, kMaxNumFrames);
       }
       // TODO(turajs) combining and limiting are used in the source files as
       // well they can be moved to utility.
       // Combine Video and stand-alone VAD.
       for (size_t n = 0; n < features.num_frames; n++) {
         double p_active = p[n] * video_vad_[n];
         double p_passive = (1 - p[n]) * (1 - video_vad_[n]);
-        p[n]  = p_active / (p_active + p_passive);
-        // Limit probabilities.
-        p[n] = std::min(std::max(p[n], 0.01), 0.99);
+        p[n] = rtc::SafeClamp(p_active / (p_active + p_passive), 0.01, 0.99);
       }
       if (vad_->VoicingProbability(features, p) < 0)
         return -1;
       for (size_t n = 0; n < features.num_frames; n++) {
         audio_content_->Update(features.rms[n], p[n]);
         double ac = audio_content_->AudioContent();
         if (audio_content_fid_ != NULL) {
           fwrite(&ac, sizeof(ac), 1, audio_content_fid_);
         }
         if (ac > kAgcAnalWindowSamples * activity_threshold_) {
@@ skipping 248 matching lines @@
     return 0;
   }
   rtc::FlagList::SetFlagsFromCommandLine(&argc, argv, true);
   if (FLAG_help) {
     rtc::FlagList::Print(nullptr, false);
     return 0;
   }
   webrtc::void_main(argc, argv);
   return 0;
 }