Replace remaining gflags usages with rtc_base/flags

webrtc/modules/audio_processing/test/unpack.cc

 /*
  *  Copyright (c) 2011 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.
  */
 
 // Commandline tool to unpack audioproc debug files.
 //
 // The debug files are dumped as protobuf blobs. For analysis, it's necessary
 // to unpack the file into its component parts: audio and other data.
 
 #include <stdio.h>
 
 #include <memory>
 
-#include "gflags/gflags.h"
 #include "webrtc/modules/audio_processing/test/protobuf_utils.h"
 #include "webrtc/modules/audio_processing/test/test_utils.h"
+#include "webrtc/rtc_base/flags.h"
 #include "webrtc/rtc_base/format_macros.h"
 #include "webrtc/rtc_base/ignore_wundef.h"
 #include "webrtc/typedefs.h"
 
 RTC_PUSH_IGNORING_WUNDEF()
 #include "webrtc/modules/audio_processing/debug.pb.h"
 RTC_POP_IGNORING_WUNDEF()
 
 // TODO(andrew): unpack more of the data.
 DEFINE_string(input_file, "input", "The name of the input stream file.");
 DEFINE_string(output_file, "ref_out",
               "The name of the reference output stream file.");
 DEFINE_string(reverse_file, "reverse",
               "The name of the reverse input stream file.");
 DEFINE_string(delay_file, "delay.int32", "The name of the delay file.");
 DEFINE_string(drift_file, "drift.int32", "The name of the drift file.");
 DEFINE_string(level_file, "level.int32", "The name of the level file.");
 DEFINE_string(keypress_file, "keypress.bool", "The name of the keypress file.");
 DEFINE_string(settings_file, "settings.txt", "The name of the settings file.");
 DEFINE_bool(full, false,
             "Unpack the full set of files (normally not needed).");
 DEFINE_bool(raw, false, "Write raw data instead of a WAV file.");
 DEFINE_bool(text,
             false,
             "Write non-audio files as text files instead of binary files.");
+DEFINE_bool(help, false, "Print this message.");
 
 #define PRINT_CONFIG(field_name) \
   if (msg.has_##field_name()) { \
     fprintf(settings_file, "  " #field_name ": %d\n", msg.field_name()); \
   }
 
 namespace webrtc {
 
 using audioproc::Event;
 using audioproc::ReverseStream;
 using audioproc::Stream;
 using audioproc::Init;
 
 void WriteData(const void* data, size_t size, FILE* file,
                const std::string& filename) {
   if (fwrite(data, size, 1, file) != 1) {
     printf("Error when writing to %s\n", filename.c_str());
     exit(1);
   }
 }
 
 int do_main(int argc, char* argv[]) {
   std::string program_name = argv[0];
   std::string usage = "Commandline tool to unpack audioproc debug files.\n"
     "Example usage:\n" + program_name + " debug_dump.pb\n";
-  google::SetUsageMessage(usage);
-  google::ParseCommandLineFlags(&argc, &argv, true);
 
-  if (argc < 2) {
-    printf("%s", google::ProgramUsage());
+  if (rtc::FlagList::SetFlagsFromCommandLine(&argc, argv, true) ||
+      FLAG_help || argc < 2) {
+    printf("%s", usage.c_str());
+    if (FLAG_help) {
+      rtc::FlagList::Print(nullptr, false);
+      return 0;
+    }
     return 1;
   }
 
   FILE* debug_file = OpenFile(argv[1], "rb");
 
   Event event_msg;
   int frame_count = 0;
   size_t reverse_samples_per_channel = 0;
   size_t input_samples_per_channel = 0;
   size_t output_samples_per_channel = 0;
   size_t num_reverse_channels = 0;
   size_t num_input_channels = 0;
   size_t num_output_channels = 0;
   std::unique_ptr<WavWriter> reverse_wav_file;
   std::unique_ptr<WavWriter> input_wav_file;
   std::unique_ptr<WavWriter> output_wav_file;
   std::unique_ptr<RawFile> reverse_raw_file;
   std::unique_ptr<RawFile> input_raw_file;
   std::unique_ptr<RawFile> output_raw_file;
 
-  FILE* settings_file = OpenFile(FLAGS_settings_file, "wb");
+  FILE* settings_file = OpenFile(FLAG_settings_file, "wb");
 
   while (ReadMessageFromFile(debug_file, &event_msg)) {
     if (event_msg.type() == Event::REVERSE_STREAM) {
       if (!event_msg.has_reverse_stream()) {
         printf("Corrupt input file: ReverseStream missing.\n");
         return 1;
       }
 
       const ReverseStream msg = event_msg.reverse_stream();
       if (msg.has_data()) {
-        if (FLAGS_raw && !reverse_raw_file) {
-          reverse_raw_file.reset(new RawFile(FLAGS_reverse_file + ".pcm"));
+        if (FLAG_raw && !reverse_raw_file) {
+          reverse_raw_file.reset(new RawFile(std::string(FLAG_reverse_file) +
+                                             ".pcm"));
         }
         // TODO(aluebs): Replace "num_reverse_channels *
         // reverse_samples_per_channel" with "msg.data().size() /
         // sizeof(int16_t)" and so on when this fix in audio_processing has made
         // it into stable: https://webrtc-codereview.appspot.com/15299004/
         WriteIntData(reinterpret_cast<const int16_t*>(msg.data().data()),
                      num_reverse_channels * reverse_samples_per_channel,
                      reverse_wav_file.get(),
                      reverse_raw_file.get());
       } else if (msg.channel_size() > 0) {
-        if (FLAGS_raw && !reverse_raw_file) {
-          reverse_raw_file.reset(new RawFile(FLAGS_reverse_file + ".float"));
+        if (FLAG_raw && !reverse_raw_file) {
+          reverse_raw_file.reset(new RawFile(std::string(FLAG_reverse_file) +
+                                             ".float"));
         }
         std::unique_ptr<const float* []> data(
             new const float* [num_reverse_channels]);
         for (size_t i = 0; i < num_reverse_channels; ++i) {
           data[i] = reinterpret_cast<const float*>(msg.channel(i).data());
         }
         WriteFloatData(data.get(),
                        reverse_samples_per_channel,
                        num_reverse_channels,
                        reverse_wav_file.get(),
                        reverse_raw_file.get());
       }
     } else if (event_msg.type() == Event::STREAM) {
       frame_count++;
       if (!event_msg.has_stream()) {
         printf("Corrupt input file: Stream missing.\n");
         return 1;
       }
 
       const Stream msg = event_msg.stream();
       if (msg.has_input_data()) {
-        if (FLAGS_raw && !input_raw_file) {
-          input_raw_file.reset(new RawFile(FLAGS_input_file + ".pcm"));
+        if (FLAG_raw && !input_raw_file) {
+          input_raw_file.reset(new RawFile(std::string(FLAG_input_file) +
+                                           ".pcm"));
         }
         WriteIntData(reinterpret_cast<const int16_t*>(msg.input_data().data()),
                      num_input_channels * input_samples_per_channel,
                      input_wav_file.get(),
                      input_raw_file.get());
       } else if (msg.input_channel_size() > 0) {
-        if (FLAGS_raw && !input_raw_file) {
-          input_raw_file.reset(new RawFile(FLAGS_input_file + ".float"));
+        if (FLAG_raw && !input_raw_file) {
+          input_raw_file.reset(new RawFile(std::string(FLAG_input_file) +
+                                           ".float"));
         }
         std::unique_ptr<const float* []> data(
             new const float* [num_input_channels]);
         for (size_t i = 0; i < num_input_channels; ++i) {
           data[i] = reinterpret_cast<const float*>(msg.input_channel(i).data());
         }
         WriteFloatData(data.get(),
                        input_samples_per_channel,
                        num_input_channels,
                        input_wav_file.get(),
                        input_raw_file.get());
       }
 
       if (msg.has_output_data()) {
-        if (FLAGS_raw && !output_raw_file) {
-          output_raw_file.reset(new RawFile(FLAGS_output_file + ".pcm"));
+        if (FLAG_raw && !output_raw_file) {
+          output_raw_file.reset(new RawFile(std::string(FLAG_output_file) +
+                                            ".pcm"));
         }
         WriteIntData(reinterpret_cast<const int16_t*>(msg.output_data().data()),
                      num_output_channels * output_samples_per_channel,
                      output_wav_file.get(),
                      output_raw_file.get());
       } else if (msg.output_channel_size() > 0) {
-        if (FLAGS_raw && !output_raw_file) {
-          output_raw_file.reset(new RawFile(FLAGS_output_file + ".float"));
+        if (FLAG_raw && !output_raw_file) {
+          output_raw_file.reset(new RawFile(std::string(FLAG_output_file) +
+                                            ".float"));
         }
         std::unique_ptr<const float* []> data(
             new const float* [num_output_channels]);
         for (size_t i = 0; i < num_output_channels; ++i) {
           data[i] =
               reinterpret_cast<const float*>(msg.output_channel(i).data());
         }
         WriteFloatData(data.get(),
                        output_samples_per_channel,
                        num_output_channels,
                        output_wav_file.get(),
                        output_raw_file.get());
       }
 
-      if (FLAGS_full) {
+      if (FLAG_full) {
         if (msg.has_delay()) {
-          static FILE* delay_file = OpenFile(FLAGS_delay_file, "wb");
+          static FILE* delay_file = OpenFile(FLAG_delay_file, "wb");
           int32_t delay = msg.delay();
-          if (FLAGS_text) {
+          if (FLAG_text) {
             fprintf(delay_file, "%d\n", delay);
           } else {
-            WriteData(&delay, sizeof(delay), delay_file, FLAGS_delay_file);
+            WriteData(&delay, sizeof(delay), delay_file, FLAG_delay_file);
           }
         }
 
         if (msg.has_drift()) {
-          static FILE* drift_file = OpenFile(FLAGS_drift_file, "wb");
+          static FILE* drift_file = OpenFile(FLAG_drift_file, "wb");
           int32_t drift = msg.drift();
-          if (FLAGS_text) {
+          if (FLAG_text) {
             fprintf(drift_file, "%d\n", drift);
           } else {
-            WriteData(&drift, sizeof(drift), drift_file, FLAGS_drift_file);
+            WriteData(&drift, sizeof(drift), drift_file, FLAG_drift_file);
           }
         }
 
         if (msg.has_level()) {
-          static FILE* level_file = OpenFile(FLAGS_level_file, "wb");
+          static FILE* level_file = OpenFile(FLAG_level_file, "wb");
           int32_t level = msg.level();
-          if (FLAGS_text) {
+          if (FLAG_text) {
             fprintf(level_file, "%d\n", level);
           } else {
-            WriteData(&level, sizeof(level), level_file, FLAGS_level_file);
+            WriteData(&level, sizeof(level), level_file, FLAG_level_file);
           }
         }
 
         if (msg.has_keypress()) {
-          static FILE* keypress_file = OpenFile(FLAGS_keypress_file, "wb");
+          static FILE* keypress_file = OpenFile(FLAG_keypress_file, "wb");
           bool keypress = msg.keypress();
-          if (FLAGS_text) {
+          if (FLAG_text) {
             fprintf(keypress_file, "%d\n", keypress);
           } else {
             WriteData(&keypress, sizeof(keypress), keypress_file,
-                      FLAGS_keypress_file);
+                      FLAG_keypress_file);
           }
         }
       }
     } else if (event_msg.type() == Event::CONFIG) {
       if (!event_msg.has_config()) {
         printf("Corrupt input file: Config missing.\n");
         return 1;
       }
       const audioproc::Config msg = event_msg.config();
 
@@ skipping 56 matching lines @@
         output_sample_rate = input_sample_rate;
       }
 
       reverse_samples_per_channel =
           static_cast<size_t>(reverse_sample_rate / 100);
       input_samples_per_channel =
           static_cast<size_t>(input_sample_rate / 100);
       output_samples_per_channel =
           static_cast<size_t>(output_sample_rate / 100);
 
-      if (!FLAGS_raw) {
+      if (!FLAG_raw) {
         // The WAV files need to be reset every time, because they cant change
         // their sample rate or number of channels.
         std::stringstream reverse_name;
-        reverse_name << FLAGS_reverse_file << frame_count << ".wav";
+        reverse_name << FLAG_reverse_file << frame_count << ".wav";
         reverse_wav_file.reset(new WavWriter(reverse_name.str(),
                                              reverse_sample_rate,
                                              num_reverse_channels));
         std::stringstream input_name;
-        input_name << FLAGS_input_file << frame_count << ".wav";
+        input_name << FLAG_input_file << frame_count << ".wav";
         input_wav_file.reset(new WavWriter(input_name.str(),
                                            input_sample_rate,
                                            num_input_channels));
         std::stringstream output_name;
-        output_name << FLAGS_output_file << frame_count << ".wav";
+        output_name << FLAG_output_file << frame_count << ".wav";
         output_wav_file.reset(new WavWriter(output_name.str(),
                                             output_sample_rate,
                                             num_output_channels));
       }
     }
   }
 
   return 0;
 }
 
 }  // namespace webrtc
 
 int main(int argc, char* argv[]) {
   return webrtc::do_main(argc, argv);
 }