Drop support for playing output through aplay in intelligibility_proc

webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc

 /*
  *  Copyright (c) 2014 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.
  */
 
 //
 //  Command line tool for speech intelligibility enhancement. Provides for
 //  running and testing intelligibility_enhancer as an independent process.
 //  Use --help for options.
 //
 
-#include <stdint.h>
-#include <stdlib.h>
 #include <sys/stat.h>
-#include <sys/types.h>
-#include <string>
 
 #include "gflags/gflags.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/base/checks.h"
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/common_audio/include/audio_util.h"
-#include "webrtc/common_audio/real_fourier.h"
 #include "webrtc/common_audio/wav_file.h"
 #include "webrtc/modules/audio_processing/audio_buffer.h"
-#include "webrtc/modules/audio_processing/include/audio_processing.h"
 #include "webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer.h"
-#include "webrtc/modules/audio_processing/intelligibility/intelligibility_utils.h"
 #include "webrtc/modules/audio_processing/noise_suppression_impl.h"
-#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
-#include "webrtc/test/testsupport/fileutils.h"
 
 using std::complex;
 
 namespace webrtc {
 namespace {
 
 DEFINE_double(clear_alpha, 0.9, "Power decay factor for clear data.");
 DEFINE_int32(sample_rate,
              16000,
              "Audio sample rate used in the input and output files.");
 DEFINE_int32(ana_rate,
              60,
              "Analysis rate; gains recalculated every N blocks.");
 DEFINE_double(gain_limit, 1000.0, "Maximum gain change in one block.");
 
 DEFINE_string(clear_file, "speech.wav", "Input file with clear speech.");
 DEFINE_string(noise_file, "noise.wav", "Input file with noise data.");
-DEFINE_string(out_file,
-              "proc_enhanced.wav",
-              "Enhanced output. Use '-' to "
-              "play through aplay immediately.");
+DEFINE_string(out_file, "proc_enhanced.wav", "Enhanced output file.");
 
 const size_t kNumChannels = 1;
 
 // void function for gtest
 void void_main(int argc, char* argv[]) {
   google::SetUsageMessage(
       "\n\nInput files must be little-endian 16-bit signed raw PCM.\n");
   google::ParseCommandLineFlags(&argc, &argv, true);
 
   size_t samples;        // Number of samples in input PCM file
@@ skipping 53 matching lines @@
     ns.AnalyzeCaptureAudio(&capture_audio);
     ns.ProcessCaptureAudio(&capture_audio);
     enh.SetCaptureNoiseEstimate(ns.NoiseEstimate());
     enh.ProcessRenderAudio(&clear_cursor, FLAGS_sample_rate, kNumChannels);
     clear_cursor += fragment_size;
     noise_cursor += fragment_size;
   }
 
   FloatToFloatS16(&in_fpcm[0], samples, &in_fpcm[0]);
 
-  if (FLAGS_out_file.compare("-") == 0) {
-    const std::string temp_out_filename =
-        test::TempFilename(test::WorkingDir(), "temp_wav_file");
-    {
-      WavWriter out_file(temp_out_filename, FLAGS_sample_rate, kNumChannels);
-      out_file.WriteSamples(&in_fpcm[0], samples);
-    }
-    system(("aplay " + temp_out_filename).c_str());
-    system(("rm " + temp_out_filename).c_str());
-  } else {
-    WavWriter out_file(FLAGS_out_file, FLAGS_sample_rate, kNumChannels);
-    out_file.WriteSamples(&in_fpcm[0], samples);
-  }
+  WavWriter out_file(FLAGS_out_file, FLAGS_sample_rate, kNumChannels);
+  out_file.WriteSamples(&in_fpcm[0], samples);
 }
 
 }  // namespace
 }  // namespace webrtc
 
 int main(int argc, char* argv[]) {
   webrtc::void_main(argc, argv);
   return 0;
 }