Reland of Add aecdump support to audioproc_f.

webrtc/common_audio/wav_file.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.
  */
 
@@ skipping 19 matching lines @@
  public:
   explicit ReadableWavFile(FILE* file) : file_(file) {}
   virtual size_t Read(void* buf, size_t num_bytes) {
     return fread(buf, 1, num_bytes, file_);
   }
 
  private:
   FILE* file_;
 };
 
+std::string WavFile::FormatAsString() const {
+  std::ostringstream s;
+  s << "Sample rate: " << sample_rate() << " Hz, Channels: " << num_channels()
+    << ", Duration: "
+    << (1.f * num_samples()) / (num_channels() * sample_rate()) << " s";
+  return s.str();
+}
+
 WavReader::WavReader(const std::string& filename)
     : file_handle_(fopen(filename.c_str(), "rb")) {
-  RTC_CHECK(file_handle_ && "Could not open wav file for reading.");
+  RTC_CHECK(file_handle_) << "Could not open wav file for reading.";
 
   ReadableWavFile readable(file_handle_);
   WavFormat format;
   int bytes_per_sample;
   RTC_CHECK(ReadWavHeader(&readable, &num_channels_, &sample_rate_, &format,
                           &bytes_per_sample, &num_samples_));
   num_samples_remaining_ = num_samples_;
   RTC_CHECK_EQ(kWavFormat, format);
   RTC_CHECK_EQ(kBytesPerSample, bytes_per_sample);
 }
@@ skipping 36 matching lines @@
   RTC_CHECK_EQ(0, fclose(file_handle_));
   file_handle_ = NULL;
 }
 
 WavWriter::WavWriter(const std::string& filename, int sample_rate,
                      int num_channels)
     : sample_rate_(sample_rate),
       num_channels_(num_channels),
       num_samples_(0),
       file_handle_(fopen(filename.c_str(), "wb")) {
-  RTC_CHECK(file_handle_ && "Could not open wav file for writing.");
+  RTC_CHECK(file_handle_) << "Could not open wav file for writing.";
   RTC_CHECK(CheckWavParameters(num_channels_, sample_rate_, kWavFormat,
                                kBytesPerSample, num_samples_));
 
   // Write a blank placeholder header, since we need to know the total number
   // of samples before we can fill in the real data.
   static const uint8_t blank_header[kWavHeaderSize] = {0};
   RTC_CHECK_EQ(1u, fwrite(blank_header, kWavHeaderSize, 1, file_handle_));
 }
 
 WavWriter::~WavWriter() {
@@ skipping 55 matching lines @@
   return reinterpret_cast<const webrtc::WavWriter*>(wf)->sample_rate();
 }
 
 int rtc_WavNumChannels(const rtc_WavWriter* wf) {
   return reinterpret_cast<const webrtc::WavWriter*>(wf)->num_channels();
 }
 
 uint32_t rtc_WavNumSamples(const rtc_WavWriter* wf) {
   return reinterpret_cast<const webrtc::WavWriter*>(wf)->num_samples();
 }