File: apm_data_dumper.cc

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/*
 *  Copyright (c) 2016 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 "modules/audio_processing/logging/apm_data_dumper.h"

#include "rtc_base/strings/string_builder.h"

// Check to verify that the define is properly set.
#if !defined(WEBRTC_APM_DEBUG_DUMP) || \
    (WEBRTC_APM_DEBUG_DUMP != 0 && WEBRTC_APM_DEBUG_DUMP != 1)
#error "Set WEBRTC_APM_DEBUG_DUMP to either 0 or 1"
#endif

namespace webrtc {
namespace {

#if WEBRTC_APM_DEBUG_DUMP == 1

#if defined(WEBRTC_WIN)
constexpr char kPathDelimiter = '\\';
#else
constexpr char kPathDelimiter = '/';
#endif

std::string FormFileName(const char* output_dir,
                         const char* name,
                         int instance_index,
                         int reinit_index,
                         const std::string& suffix) {
  char buf[1024];
  rtc::SimpleStringBuilder ss(buf);
  const size_t output_dir_size = strlen(output_dir);
  if (output_dir_size > 0) {
    ss << output_dir;
    if (output_dir[output_dir_size - 1] != kPathDelimiter) {
      ss << kPathDelimiter;
    }
  }
  ss << name << "_" << instance_index << "-" << reinit_index << suffix;
  return ss.str();
}
#endif

}  // namespace

#if WEBRTC_APM_DEBUG_DUMP == 1
ApmDataDumper::ApmDataDumper(int instance_index)
    : instance_index_(instance_index) {}
#else
ApmDataDumper::ApmDataDumper(int instance_index){};
#endif

ApmDataDumper::~ApmDataDumper() = default;

#if WEBRTC_APM_DEBUG_DUMP == 1
bool ApmDataDumper::recording_activated_ = false;
char ApmDataDumper::output_dir_[] = "";

FILE* ApmDataDumper::GetRawFile(const char* name) {
  std::string filename = FormFileName(output_dir_, name, instance_index_,
                                      recording_set_index_, ".dat");
  auto& f = raw_files_[filename];
  if (!f) {
    f.reset(fopen(filename.c_str(), "wb"));
    RTC_CHECK(f.get()) << "Cannot write to " << filename << ".";
  }
  return f.get();
}

WavWriter* ApmDataDumper::GetWavFile(const char* name,
                                     int sample_rate_hz,
                                     int num_channels) {
  std::string filename = FormFileName(output_dir_, name, instance_index_,
                                      recording_set_index_, ".wav");
  auto& f = wav_files_[filename];
  if (!f) {
    f.reset(new WavWriter(filename.c_str(), sample_rate_hz, num_channels));
  }
  return f.get();
}
#endif

}  // namespace webrtc