Convert channel counts to size_t.

webrtc/modules/audio_processing/test/audioproc_float.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.
  */
 
 #include <stdio.h>
 #include <iostream>
 #include <sstream>
 #include <string>
 #include <utility>
 
 #include "gflags/gflags.h"
 #include "webrtc/base/checks.h"
+#include "webrtc/base/format_macros.h"
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/common_audio/channel_buffer.h"
 #include "webrtc/common_audio/wav_file.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 #include "webrtc/modules/audio_processing/test/audio_file_processor.h"
 #include "webrtc/modules/audio_processing/test/protobuf_utils.h"
 #include "webrtc/modules/audio_processing/test/test_utils.h"
 #include "webrtc/system_wrappers/include/tick_util.h"
 #include "webrtc/test/testsupport/trace_to_stderr.h"
 
+namespace {
+
+bool ValidateOutChannels(const char* flagname, int32_t value) {
+  return value >= 0;
+}
+
+}  // namespace
+
 DEFINE_string(dump, "", "Name of the aecdump debug file to read from.");
 DEFINE_string(i, "", "Name of the capture input stream file to read from.");
 DEFINE_string(
     o,
     "out.wav",
     "Name of the output file to write the processed capture stream to.");
 DEFINE_int32(out_channels, 1, "Number of output channels.");
+const bool out_channels_dummy =
+    google::RegisterFlagValidator(&FLAGS_out_channels, &ValidateOutChannels);
 DEFINE_int32(out_sample_rate, 48000, "Output sample rate in Hz.");
 DEFINE_string(mic_positions, "",
     "Space delimited cartesian coordinates of microphones in meters. "
     "The coordinates of each point are contiguous. "
     "For a two element array: \"x1 y1 z1 x2 y2 z2\"");
 DEFINE_double(
     target_angle_degrees,
     90,
     "The azimuth of the target in degrees. Only applies to beamforming.");
 
@@ skipping 64 matching lines @@
   RTC_CHECK_EQ(kNoErr, ap->high_pass_filter()->Enable(FLAGS_hpf || FLAGS_all));
   RTC_CHECK_EQ(kNoErr, ap->noise_suppression()->Enable(FLAGS_ns || FLAGS_all));
   if (FLAGS_ns_level != -1) {
     RTC_CHECK_EQ(kNoErr,
                  ap->noise_suppression()->set_level(
                      static_cast<NoiseSuppression::Level>(FLAGS_ns_level)));
   }
   ap->set_stream_key_pressed(FLAGS_ts);
 
   rtc::scoped_ptr<AudioFileProcessor> processor;
-  auto out_file = rtc_make_scoped_ptr(
-      new WavWriter(FLAGS_o, FLAGS_out_sample_rate, FLAGS_out_channels));
+  auto out_file = rtc_make_scoped_ptr(new WavWriter(
+      FLAGS_o, FLAGS_out_sample_rate, static_cast<size_t>(FLAGS_out_channels)));
   std::cout << FLAGS_o << ": " << out_file->FormatAsString() << std::endl;
   if (FLAGS_dump.empty()) {
     auto in_file = rtc_make_scoped_ptr(new WavReader(FLAGS_i));
     std::cout << FLAGS_i << ": " << in_file->FormatAsString() << std::endl;
     processor.reset(new WavFileProcessor(std::move(ap), std::move(in_file),
                                          std::move(out_file)));
 
   } else {
     processor.reset(new AecDumpFileProcessor(
         std::move(ap), fopen(FLAGS_dump.c_str(), "rb"), std::move(out_file)));
@@ skipping 17 matching lines @@
   }
 
   return 0;
 }
 
 }  // namespace webrtc
 
 int main(int argc, char* argv[]) {
   return webrtc::main(argc, argv);
 }