[NOT FOR REVIEW] 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 <sstream>
 #include <string>
 
 #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/protobuf_utils.h"
 #include "webrtc/modules/audio_processing/test/test_utils.h"
 #include "webrtc/system_wrappers/interface/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, "", "The name of the debug dump file to read from.");
 DEFINE_string(i, "", "The name of the input file to read from.");
 DEFINE_string(o, "out.wav", "Name of the output file to write to.");
 DEFINE_int32(out_channels, 0, "Number of output channels. Defaults to input.");
+const bool out_channels_dummy =
+    google::RegisterFlagValidator(&FLAGS_out_channels, &ValidateOutChannels);
 DEFINE_int32(out_sample_rate, 0,
              "Output sample rate in Hz. Defaults to input.");
 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_bool(aec, false, "Enable echo cancellation.");
 DEFINE_bool(agc, false, "Enable automatic gain control.");
 DEFINE_bool(hpf, false, "Enable high-pass filtering.");
@@ skipping 30 matching lines @@
     return 1;
   }
   if (!FLAGS_dump.empty()) {
     fprintf(stderr, "FIXME: the -dump option is not yet implemented.\n");
     return 1;
   }
 
   test::TraceToStderr trace_to_stderr(true);
   WavReader in_file(FLAGS_i);
   // If the output format is uninitialized, use the input format.
-  const int out_channels =
-      FLAGS_out_channels ? FLAGS_out_channels : in_file.num_channels();
+  const size_t out_channels = FLAGS_out_channels ?
+      static_cast<size_t>(FLAGS_out_channels) : in_file.num_channels();
   const int out_sample_rate =
       FLAGS_out_sample_rate ? FLAGS_out_sample_rate : in_file.sample_rate();
   WavWriter out_file(FLAGS_o, out_sample_rate, out_channels);
 
   Config config;
   config.Set<ExperimentalNs>(new ExperimentalNs(FLAGS_ts || FLAGS_all));
 
   if (FLAGS_bf || FLAGS_all) {
     const size_t num_mics = in_file.num_channels();
     const std::vector<Point> array_geometry =
@@ skipping 11 matching lines @@
     return -1;
   }
   CHECK_EQ(kNoErr, ap->gain_control()->Enable(FLAGS_agc || FLAGS_all));
   CHECK_EQ(kNoErr, ap->gain_control()->set_mode(GainControl::kFixedDigital));
   CHECK_EQ(kNoErr, ap->high_pass_filter()->Enable(FLAGS_hpf || FLAGS_all));
   CHECK_EQ(kNoErr, ap->noise_suppression()->Enable(FLAGS_ns || FLAGS_all));
   if (FLAGS_ns_level != -1)
     CHECK_EQ(kNoErr, ap->noise_suppression()->set_level(
         static_cast<NoiseSuppression::Level>(FLAGS_ns_level)));
 
-  printf("Input file: %s\nChannels: %d, Sample rate: %d Hz\n\n",
+  printf("Input file: %s\nChannels: %" PRIuS ", Sample rate: %d Hz\n\n",
          FLAGS_i.c_str(), in_file.num_channels(), in_file.sample_rate());
-  printf("Output file: %s\nChannels: %d, Sample rate: %d Hz\n\n",
+  printf("Output file: %s\nChannels: %" PRIuS ", Sample rate: %d Hz\n\n",
          FLAGS_o.c_str(), out_file.num_channels(), out_file.sample_rate());
 
   ChannelBuffer<float> in_buf(
       rtc::CheckedDivExact(in_file.sample_rate(), kChunksPerSecond),
       in_file.num_channels());
   ChannelBuffer<float> out_buf(
       rtc::CheckedDivExact(out_file.sample_rate(), kChunksPerSecond),
       out_file.num_channels());
 
   std::vector<float> in_interleaved(in_buf.size());
@@ skipping 41 matching lines @@
            execution_time_ms * 1.f / num_chunks);
   }
   return 0;
 }
 
 }  // namespace webrtc
 
 int main(int argc, char* argv[]) {
   return webrtc::main(argc, argv);
 }