kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 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 |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
Raphael Kubo da Costa | 7ce3091 | 2018-04-16 11:17:10 +0200 | [diff] [blame] | 11 | #include <string.h> |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 12 | #include <limits> |
| 13 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 14 | #include "common_audio/wav_header.h" |
| 15 | #include "test/gtest.h" |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 16 | |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 17 | namespace webrtc { |
| 18 | |
| 19 | // Doesn't take ownership of the buffer. |
| 20 | class ReadableWavBuffer : public ReadableWav { |
| 21 | public: |
| 22 | ReadableWavBuffer(const uint8_t* buf, size_t size) |
| 23 | : buf_(buf), |
| 24 | size_(size), |
| 25 | pos_(0), |
| 26 | buf_exhausted_(false), |
| 27 | check_read_size_(true) {} |
| 28 | ReadableWavBuffer(const uint8_t* buf, size_t size, bool check_read_size) |
| 29 | : buf_(buf), |
| 30 | size_(size), |
| 31 | pos_(0), |
| 32 | buf_exhausted_(false), |
| 33 | check_read_size_(check_read_size) {} |
| 34 | |
Mirko Bonadei | 91df091 | 2018-07-17 11:08:15 +0200 | [diff] [blame] | 35 | ~ReadableWavBuffer() override { |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 36 | // Verify the entire buffer has been read. |
| 37 | if (check_read_size_) |
| 38 | EXPECT_EQ(size_, pos_); |
| 39 | } |
| 40 | |
Mirko Bonadei | 91df091 | 2018-07-17 11:08:15 +0200 | [diff] [blame] | 41 | size_t Read(void* buf, size_t num_bytes) override { |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 42 | // Verify we don't try to read outside of a properly sized header. |
| 43 | if (size_ >= kWavHeaderSize) |
| 44 | EXPECT_GE(size_, pos_ + num_bytes); |
| 45 | EXPECT_FALSE(buf_exhausted_); |
| 46 | |
| 47 | const size_t bytes_remaining = size_ - pos_; |
| 48 | if (num_bytes > bytes_remaining) { |
| 49 | // The caller is signalled about an exhausted buffer when we return fewer |
| 50 | // bytes than requested. There should not be another read attempt after |
| 51 | // this point. |
| 52 | buf_exhausted_ = true; |
| 53 | num_bytes = bytes_remaining; |
| 54 | } |
| 55 | memcpy(buf, &buf_[pos_], num_bytes); |
| 56 | pos_ += num_bytes; |
| 57 | return num_bytes; |
| 58 | } |
| 59 | |
| 60 | private: |
| 61 | const uint8_t* buf_; |
| 62 | const size_t size_; |
| 63 | size_t pos_; |
| 64 | bool buf_exhausted_; |
| 65 | const bool check_read_size_; |
| 66 | }; |
| 67 | |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 68 | // Try various choices of WAV header parameters, and make sure that the good |
| 69 | // ones are accepted and the bad ones rejected. |
| 70 | TEST(WavHeaderTest, CheckWavParameters) { |
| 71 | // Try some really stupid values for one parameter at a time. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 72 | EXPECT_TRUE(CheckWavParameters(1, 8000, kWavFormatPcm, 1, 0)); |
| 73 | EXPECT_FALSE(CheckWavParameters(0, 8000, kWavFormatPcm, 1, 0)); |
pkasting | 25702cb | 2016-01-08 13:50:27 -0800 | [diff] [blame] | 74 | EXPECT_FALSE(CheckWavParameters(0x10000, 8000, kWavFormatPcm, 1, 0)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 75 | EXPECT_FALSE(CheckWavParameters(1, 0, kWavFormatPcm, 1, 0)); |
| 76 | EXPECT_FALSE(CheckWavParameters(1, 8000, WavFormat(0), 1, 0)); |
| 77 | EXPECT_FALSE(CheckWavParameters(1, 8000, kWavFormatPcm, 0, 0)); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 78 | |
| 79 | // Try invalid format/bytes-per-sample combinations. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 80 | EXPECT_TRUE(CheckWavParameters(1, 8000, kWavFormatPcm, 2, 0)); |
| 81 | EXPECT_FALSE(CheckWavParameters(1, 8000, kWavFormatPcm, 4, 0)); |
| 82 | EXPECT_FALSE(CheckWavParameters(1, 8000, kWavFormatALaw, 2, 0)); |
| 83 | EXPECT_FALSE(CheckWavParameters(1, 8000, kWavFormatMuLaw, 2, 0)); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 84 | |
| 85 | // Too large values. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 86 | EXPECT_FALSE(CheckWavParameters(1 << 20, 1 << 20, kWavFormatPcm, 1, 0)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 87 | EXPECT_FALSE(CheckWavParameters(1, 8000, kWavFormatPcm, 1, |
| 88 | std::numeric_limits<uint32_t>::max())); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 89 | |
| 90 | // Not the same number of samples for each channel. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 91 | EXPECT_FALSE(CheckWavParameters(3, 8000, kWavFormatPcm, 1, 5)); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 92 | } |
| 93 | |
andrew@webrtc.org | f866b2d | 2014-11-03 18:20:06 +0000 | [diff] [blame] | 94 | TEST(WavHeaderTest, ReadWavHeaderWithErrors) { |
Peter Kasting | 6955870 | 2016-01-12 16:26:35 -0800 | [diff] [blame] | 95 | size_t num_channels = 0; |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 96 | int sample_rate = 0; |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 97 | WavFormat format = kWavFormatPcm; |
pkasting | 25702cb | 2016-01-08 13:50:27 -0800 | [diff] [blame] | 98 | size_t bytes_per_sample = 0; |
| 99 | size_t num_samples = 0; |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 100 | |
| 101 | // Test a few ways the header can be invalid. We start with the valid header |
| 102 | // used in WriteAndReadWavHeader, and invalidate one field per test. The |
| 103 | // invalid field is indicated in the array name, and in the comments with |
| 104 | // *BAD*. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 105 | { |
| 106 | static const uint8_t kBadRiffID[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 107 | // clang-format off |
| 108 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 109 | 'R', 'i', 'f', 'f', // *BAD* |
| 110 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 111 | 'W', 'A', 'V', 'E', |
| 112 | 'f', 'm', 't', ' ', |
| 113 | 16, 0, 0, 0, // size of fmt block - 8: 24 - 8 |
| 114 | 6, 0, // format: A-law (6) |
| 115 | 17, 0, // channels: 17 |
| 116 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 117 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 118 | 17, 0, // block align: NumChannels * BytesPerSample |
| 119 | 8, 0, // bits per sample: 1 * 8 |
| 120 | 'd', 'a', 't', 'a', |
| 121 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 122 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 123 | }; |
| 124 | ReadableWavBuffer r(kBadRiffID, sizeof(kBadRiffID)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 125 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 126 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 127 | } |
| 128 | { |
| 129 | static const uint8_t kBadBitsPerSample[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 130 | // clang-format off |
| 131 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 132 | 'R', 'I', 'F', 'F', |
| 133 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 134 | 'W', 'A', 'V', 'E', |
| 135 | 'f', 'm', 't', ' ', |
| 136 | 16, 0, 0, 0, // size of fmt block - 8: 24 - 8 |
| 137 | 6, 0, // format: A-law (6) |
| 138 | 17, 0, // channels: 17 |
| 139 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 140 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 141 | 17, 0, // block align: NumChannels * BytesPerSample |
| 142 | 1, 0, // bits per sample: *BAD* |
| 143 | 'd', 'a', 't', 'a', |
| 144 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 145 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 146 | }; |
| 147 | ReadableWavBuffer r(kBadBitsPerSample, sizeof(kBadBitsPerSample)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 148 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 149 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 150 | } |
| 151 | { |
| 152 | static const uint8_t kBadByteRate[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 153 | // clang-format off |
| 154 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 155 | 'R', 'I', 'F', 'F', |
| 156 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 157 | 'W', 'A', 'V', 'E', |
| 158 | 'f', 'm', 't', ' ', |
| 159 | 16, 0, 0, 0, // size of fmt block - 8: 24 - 8 |
| 160 | 6, 0, // format: A-law (6) |
| 161 | 17, 0, // channels: 17 |
| 162 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 163 | 0x00, 0x33, 0x03, 0, // byte rate: *BAD* |
| 164 | 17, 0, // block align: NumChannels * BytesPerSample |
| 165 | 8, 0, // bits per sample: 1 * 8 |
| 166 | 'd', 'a', 't', 'a', |
| 167 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 168 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 169 | }; |
| 170 | ReadableWavBuffer r(kBadByteRate, sizeof(kBadByteRate)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 171 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 172 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 173 | } |
| 174 | { |
| 175 | static const uint8_t kBadFmtHeaderSize[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 176 | // clang-format off |
| 177 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 178 | 'R', 'I', 'F', 'F', |
| 179 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 180 | 'W', 'A', 'V', 'E', |
| 181 | 'f', 'm', 't', ' ', |
| 182 | 17, 0, 0, 0, // size of fmt block *BAD*. Only 16 and 18 permitted. |
| 183 | 6, 0, // format: A-law (6) |
| 184 | 17, 0, // channels: 17 |
| 185 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 186 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 187 | 17, 0, // block align: NumChannels * BytesPerSample |
| 188 | 8, 0, // bits per sample: 1 * 8 |
| 189 | 0, // extra (though invalid) header byte |
| 190 | 'd', 'a', 't', 'a', |
| 191 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 192 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 193 | }; |
| 194 | ReadableWavBuffer r(kBadFmtHeaderSize, sizeof(kBadFmtHeaderSize), false); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 195 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 196 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 197 | } |
| 198 | { |
| 199 | static const uint8_t kNonZeroExtensionField[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 200 | // clang-format off |
| 201 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 202 | 'R', 'I', 'F', 'F', |
| 203 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 204 | 'W', 'A', 'V', 'E', |
| 205 | 'f', 'm', 't', ' ', |
| 206 | 18, 0, 0, 0, // size of fmt block - 8: 24 - 8 |
| 207 | 6, 0, // format: A-law (6) |
| 208 | 17, 0, // channels: 17 |
| 209 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 210 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 211 | 17, 0, // block align: NumChannels * BytesPerSample |
| 212 | 8, 0, // bits per sample: 1 * 8 |
| 213 | 1, 0, // non-zero extension field *BAD* |
| 214 | 'd', 'a', 't', 'a', |
| 215 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 216 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 217 | }; |
| 218 | ReadableWavBuffer r(kNonZeroExtensionField, sizeof(kNonZeroExtensionField), |
| 219 | false); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 220 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 221 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 222 | } |
| 223 | { |
| 224 | static const uint8_t kMissingDataChunk[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 225 | // clang-format off |
| 226 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 227 | 'R', 'I', 'F', 'F', |
| 228 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 229 | 'W', 'A', 'V', 'E', |
| 230 | 'f', 'm', 't', ' ', |
| 231 | 16, 0, 0, 0, // size of fmt block - 8: 24 - 8 |
| 232 | 6, 0, // format: A-law (6) |
| 233 | 17, 0, // channels: 17 |
| 234 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 235 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 236 | 17, 0, // block align: NumChannels * BytesPerSample |
| 237 | 8, 0, // bits per sample: 1 * 8 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 238 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 239 | }; |
| 240 | ReadableWavBuffer r(kMissingDataChunk, sizeof(kMissingDataChunk)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 241 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 242 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 243 | } |
| 244 | { |
| 245 | static const uint8_t kMissingFmtAndDataChunks[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 246 | // clang-format off |
| 247 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 248 | 'R', 'I', 'F', 'F', |
| 249 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 250 | 'W', 'A', 'V', 'E', |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 251 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 252 | }; |
| 253 | ReadableWavBuffer r(kMissingFmtAndDataChunks, |
| 254 | sizeof(kMissingFmtAndDataChunks)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 255 | EXPECT_FALSE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 256 | &bytes_per_sample, &num_samples)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 257 | } |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 258 | } |
| 259 | |
andrew@webrtc.org | f866b2d | 2014-11-03 18:20:06 +0000 | [diff] [blame] | 260 | // Try writing and reading a valid WAV header and make sure it looks OK. |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 261 | TEST(WavHeaderTest, WriteAndReadWavHeader) { |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 262 | static const int kSize = 4 + kWavHeaderSize + 4; |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 263 | uint8_t buf[kSize]; |
| 264 | memset(buf, 0xa4, sizeof(buf)); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 265 | WriteWavHeader(buf + 4, 17, 12345, kWavFormatALaw, 1, 123457689); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 266 | static const uint8_t kExpectedBuf[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 267 | // clang-format off |
| 268 | // clang formatting doesn't respect inline comments. |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 269 | 0xa4, 0xa4, 0xa4, 0xa4, // untouched bytes before header |
| 270 | 'R', 'I', 'F', 'F', |
| 271 | 0xbd, 0xd0, 0x5b, 0x07, // size of whole file - 8: 123457689 + 44 - 8 |
| 272 | 'W', 'A', 'V', 'E', |
| 273 | 'f', 'm', 't', ' ', |
| 274 | 16, 0, 0, 0, // size of fmt block - 8: 24 - 8 |
| 275 | 6, 0, // format: A-law (6) |
| 276 | 17, 0, // channels: 17 |
| 277 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 278 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 279 | 17, 0, // block align: NumChannels * BytesPerSample |
| 280 | 8, 0, // bits per sample: 1 * 8 |
| 281 | 'd', 'a', 't', 'a', |
| 282 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
| 283 | 0xa4, 0xa4, 0xa4, 0xa4, // untouched bytes after header |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 284 | // clang-format on |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 285 | }; |
kwiberg@webrtc.org | 2ebfac5 | 2015-01-14 10:51:54 +0000 | [diff] [blame] | 286 | static_assert(sizeof(kExpectedBuf) == kSize, "buffer size"); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 287 | EXPECT_EQ(0, memcmp(kExpectedBuf, buf, kSize)); |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 288 | |
Peter Kasting | 6955870 | 2016-01-12 16:26:35 -0800 | [diff] [blame] | 289 | size_t num_channels = 0; |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 290 | int sample_rate = 0; |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 291 | WavFormat format = kWavFormatPcm; |
pkasting | 25702cb | 2016-01-08 13:50:27 -0800 | [diff] [blame] | 292 | size_t bytes_per_sample = 0; |
| 293 | size_t num_samples = 0; |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 294 | ReadableWavBuffer r(buf + 4, sizeof(buf) - 8); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 295 | EXPECT_TRUE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 296 | &bytes_per_sample, &num_samples)); |
Peter Kasting | 6955870 | 2016-01-12 16:26:35 -0800 | [diff] [blame] | 297 | EXPECT_EQ(17u, num_channels); |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 298 | EXPECT_EQ(12345, sample_rate); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 299 | EXPECT_EQ(kWavFormatALaw, format); |
pkasting | 25702cb | 2016-01-08 13:50:27 -0800 | [diff] [blame] | 300 | EXPECT_EQ(1u, bytes_per_sample); |
andrew@webrtc.org | a3ed713 | 2014-10-31 21:51:03 +0000 | [diff] [blame] | 301 | EXPECT_EQ(123457689u, num_samples); |
kwiberg@webrtc.org | 877083c | 2014-08-20 07:42:46 +0000 | [diff] [blame] | 302 | } |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 303 | |
| 304 | // Try reading an atypical but valid WAV header and make sure it's parsed OK. |
| 305 | TEST(WavHeaderTest, ReadAtypicalWavHeader) { |
| 306 | static const uint8_t kBuf[] = { |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 307 | // clang-format off |
| 308 | // clang formatting doesn't respect inline comments. |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 309 | 'R', 'I', 'F', 'F', |
| 310 | 0x3d, 0xd1, 0x5b, 0x07, // size of whole file - 8 + an extra 128 bytes of |
| 311 | // "metadata": 123457689 + 44 - 8 + 128. (atypical) |
| 312 | 'W', 'A', 'V', 'E', |
| 313 | 'f', 'm', 't', ' ', |
| 314 | 18, 0, 0, 0, // size of fmt block (with an atypical extension size field) |
| 315 | 6, 0, // format: A-law (6) |
| 316 | 17, 0, // channels: 17 |
| 317 | 0x39, 0x30, 0, 0, // sample rate: 12345 |
| 318 | 0xc9, 0x33, 0x03, 0, // byte rate: 1 * 17 * 12345 |
| 319 | 17, 0, // block align: NumChannels * BytesPerSample |
| 320 | 8, 0, // bits per sample: 1 * 8 |
| 321 | 0, 0, // zero extension size field (atypical) |
| 322 | 'd', 'a', 't', 'a', |
| 323 | 0x99, 0xd0, 0x5b, 0x07, // size of payload: 123457689 |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 324 | // clang-format on |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 325 | }; |
| 326 | |
Peter Kasting | 6955870 | 2016-01-12 16:26:35 -0800 | [diff] [blame] | 327 | size_t num_channels = 0; |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 328 | int sample_rate = 0; |
| 329 | WavFormat format = kWavFormatPcm; |
pkasting | 25702cb | 2016-01-08 13:50:27 -0800 | [diff] [blame] | 330 | size_t bytes_per_sample = 0; |
| 331 | size_t num_samples = 0; |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 332 | ReadableWavBuffer r(kBuf, sizeof(kBuf)); |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 333 | EXPECT_TRUE(ReadWavHeader(&r, &num_channels, &sample_rate, &format, |
| 334 | &bytes_per_sample, &num_samples)); |
Peter Kasting | 6955870 | 2016-01-12 16:26:35 -0800 | [diff] [blame] | 335 | EXPECT_EQ(17u, num_channels); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 336 | EXPECT_EQ(12345, sample_rate); |
| 337 | EXPECT_EQ(kWavFormatALaw, format); |
pkasting | 25702cb | 2016-01-08 13:50:27 -0800 | [diff] [blame] | 338 | EXPECT_EQ(1u, bytes_per_sample); |
andrew@webrtc.org | 048c502 | 2014-12-16 20:17:21 +0000 | [diff] [blame] | 339 | EXPECT_EQ(123457689u, num_samples); |
| 340 | } |
| 341 | |
| 342 | } // namespace webrtc |