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Side by Side Diff: webrtc/common_audio/wav_file.cc

Issue 1409943002: Add aecdump support to audioproc_f. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Rebase. Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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30 public: 30 public:
31 explicit ReadableWavFile(FILE* file) : file_(file) {} 31 explicit ReadableWavFile(FILE* file) : file_(file) {}
32 virtual size_t Read(void* buf, size_t num_bytes) { 32 virtual size_t Read(void* buf, size_t num_bytes) {
33 return fread(buf, 1, num_bytes, file_); 33 return fread(buf, 1, num_bytes, file_);
34 } 34 }
35 35
36 private: 36 private:
37 FILE* file_; 37 FILE* file_;
38 }; 38 };
39 39
40 std::string WavFile::FormatAsString() const {
41 std::ostringstream s;
42 s << "Sample rate: " << sample_rate() << " Hz, Channels: " << num_channels()
43 << ", Duration: "
44 << (1.f * num_samples()) / (num_channels() * sample_rate()) << " s";
45 return s.str();
46 }
47
40 WavReader::WavReader(const std::string& filename) 48 WavReader::WavReader(const std::string& filename)
41 : file_handle_(fopen(filename.c_str(), "rb")) { 49 : file_handle_(fopen(filename.c_str(), "rb")) {
42 RTC_CHECK(file_handle_ && "Could not open wav file for reading."); 50 RTC_CHECK(file_handle_) << "Could not open wav file for reading.";
43 51
44 ReadableWavFile readable(file_handle_); 52 ReadableWavFile readable(file_handle_);
45 WavFormat format; 53 WavFormat format;
46 int bytes_per_sample; 54 int bytes_per_sample;
47 RTC_CHECK(ReadWavHeader(&readable, &num_channels_, &sample_rate_, &format, 55 RTC_CHECK(ReadWavHeader(&readable, &num_channels_, &sample_rate_, &format,
48 &bytes_per_sample, &num_samples_)); 56 &bytes_per_sample, &num_samples_));
49 num_samples_remaining_ = num_samples_; 57 num_samples_remaining_ = num_samples_;
50 RTC_CHECK_EQ(kWavFormat, format); 58 RTC_CHECK_EQ(kWavFormat, format);
51 RTC_CHECK_EQ(kBytesPerSample, bytes_per_sample); 59 RTC_CHECK_EQ(kBytesPerSample, bytes_per_sample);
52 } 60 }
(...skipping 36 matching lines...) Expand 10 before | Expand all | Expand 10 after
89 RTC_CHECK_EQ(0, fclose(file_handle_)); 97 RTC_CHECK_EQ(0, fclose(file_handle_));
90 file_handle_ = NULL; 98 file_handle_ = NULL;
91 } 99 }
92 100
93 WavWriter::WavWriter(const std::string& filename, int sample_rate, 101 WavWriter::WavWriter(const std::string& filename, int sample_rate,
94 int num_channels) 102 int num_channels)
95 : sample_rate_(sample_rate), 103 : sample_rate_(sample_rate),
96 num_channels_(num_channels), 104 num_channels_(num_channels),
97 num_samples_(0), 105 num_samples_(0),
98 file_handle_(fopen(filename.c_str(), "wb")) { 106 file_handle_(fopen(filename.c_str(), "wb")) {
99 RTC_CHECK(file_handle_ && "Could not open wav file for writing."); 107 RTC_CHECK(file_handle_) << "Could not open wav file for writing.";
100 RTC_CHECK(CheckWavParameters(num_channels_, sample_rate_, kWavFormat, 108 RTC_CHECK(CheckWavParameters(num_channels_, sample_rate_, kWavFormat,
101 kBytesPerSample, num_samples_)); 109 kBytesPerSample, num_samples_));
102 110
103 // Write a blank placeholder header, since we need to know the total number 111 // Write a blank placeholder header, since we need to know the total number
104 // of samples before we can fill in the real data. 112 // of samples before we can fill in the real data.
105 static const uint8_t blank_header[kWavHeaderSize] = {0}; 113 static const uint8_t blank_header[kWavHeaderSize] = {0};
106 RTC_CHECK_EQ(1u, fwrite(blank_header, kWavHeaderSize, 1, file_handle_)); 114 RTC_CHECK_EQ(1u, fwrite(blank_header, kWavHeaderSize, 1, file_handle_));
107 } 115 }
108 116
109 WavWriter::~WavWriter() { 117 WavWriter::~WavWriter() {
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165 return reinterpret_cast<const webrtc::WavWriter*>(wf)->sample_rate(); 173 return reinterpret_cast<const webrtc::WavWriter*>(wf)->sample_rate();
166 } 174 }
167 175
168 int rtc_WavNumChannels(const rtc_WavWriter* wf) { 176 int rtc_WavNumChannels(const rtc_WavWriter* wf) {
169 return reinterpret_cast<const webrtc::WavWriter*>(wf)->num_channels(); 177 return reinterpret_cast<const webrtc::WavWriter*>(wf)->num_channels();
170 } 178 }
171 179
172 uint32_t rtc_WavNumSamples(const rtc_WavWriter* wf) { 180 uint32_t rtc_WavNumSamples(const rtc_WavWriter* wf) {
173 return reinterpret_cast<const webrtc::WavWriter*>(wf)->num_samples(); 181 return reinterpret_cast<const webrtc::WavWriter*>(wf)->num_samples();
174 } 182 }
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