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| 1 /* | |
| 2 * Copyright (c) 2012 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 | |
| 11 #include "webrtc/modules/utility/include/file_player.h" | |
| 12 | |
| 13 #include "webrtc/common_audio/resampler/include/resampler.h" | |
| 14 #include "webrtc/common_types.h" | |
| 15 #include "webrtc/modules/media_file/media_file.h" | |
| 16 #include "webrtc/modules/media_file/media_file_defines.h" | |
| 17 #include "webrtc/modules/utility/source/coder.h" | |
| 18 #include "webrtc/system_wrappers/include/critical_section_wrapper.h" | |
| 19 #include "webrtc/system_wrappers/include/logging.h" | |
| 20 #include "webrtc/typedefs.h" | |
| 21 | |
| 22 namespace webrtc { | |
| 23 | |
| 24 namespace { | |
| 25 | |
| 26 class FilePlayerImpl : public FilePlayer { | |
| 27 public: | |
| 28 FilePlayerImpl(uint32_t instanceID, FileFormats fileFormat); | |
| 29 ~FilePlayerImpl() override; | |
| 30 | |
| 31 int Get10msAudioFromFile(int16_t* outBuffer, | |
| 32 size_t* lengthInSamples, | |
| 33 int frequencyInHz) override; | |
| 34 int32_t RegisterModuleFileCallback(FileCallback* callback) override; | |
| 35 int32_t StartPlayingFile(const char* fileName, | |
| 36 bool loop, | |
| 37 uint32_t startPosition, | |
| 38 float volumeScaling, | |
| 39 uint32_t notification, | |
| 40 uint32_t stopPosition, | |
| 41 const CodecInst* codecInst) override; | |
| 42 int32_t StartPlayingFile(InStream* sourceStream, | |
| 43 uint32_t startPosition, | |
| 44 float volumeScaling, | |
| 45 uint32_t notification, | |
| 46 uint32_t stopPosition, | |
| 47 const CodecInst* codecInst) override; | |
| 48 int32_t StopPlayingFile() override; | |
| 49 bool IsPlayingFile() const override; | |
| 50 int32_t GetPlayoutPosition(uint32_t* durationMs) override; | |
| 51 int32_t AudioCodec(CodecInst* audioCodec) const override; | |
| 52 int32_t Frequency() const override; | |
| 53 int32_t SetAudioScaling(float scaleFactor) override; | |
| 54 | |
| 55 private: | |
| 56 int32_t SetUpAudioDecoder(); | |
| 57 | |
| 58 const FileFormats _fileFormat; | |
| 59 MediaFile& _fileModule; | |
| 60 | |
| 61 uint32_t _decodedLengthInMS; | |
| 62 | |
| 63 AudioCoder _audioDecoder; | |
| 64 | |
| 65 CodecInst _codec; | |
| 66 int32_t _numberOf10MsPerFrame; | |
| 67 int32_t _numberOf10MsInDecoder; | |
| 68 | |
| 69 Resampler _resampler; | |
| 70 float _scaling; | |
| 71 }; | |
| 72 | |
| 73 FilePlayerImpl::FilePlayerImpl(const uint32_t instanceID, | |
| 74 const FileFormats fileFormat) | |
| 75 : _fileFormat(fileFormat), | |
| 76 _fileModule(*MediaFile::CreateMediaFile(instanceID)), | |
| 77 _decodedLengthInMS(0), | |
| 78 _audioDecoder(instanceID), | |
| 79 _codec(), | |
| 80 _numberOf10MsPerFrame(0), | |
| 81 _numberOf10MsInDecoder(0), | |
| 82 _resampler(), | |
| 83 _scaling(1.0) { | |
| 84 _codec.plfreq = 0; | |
| 85 } | |
| 86 | |
| 87 FilePlayerImpl::~FilePlayerImpl() { | |
| 88 MediaFile::DestroyMediaFile(&_fileModule); | |
| 89 } | |
| 90 | |
| 91 int32_t FilePlayerImpl::Frequency() const { | |
| 92 if (_codec.plfreq == 0) { | |
| 93 return -1; | |
| 94 } | |
| 95 // Make sure that sample rate is 8,16 or 32 kHz. E.g. WAVE files may have | |
| 96 // other sampling rates. | |
| 97 if (_codec.plfreq == 11000) { | |
| 98 return 16000; | |
| 99 } else if (_codec.plfreq == 22000) { | |
| 100 return 32000; | |
| 101 } else if (_codec.plfreq == 44000) { | |
| 102 return 32000; | |
| 103 } else if (_codec.plfreq == 48000) { | |
| 104 return 32000; | |
| 105 } else { | |
| 106 return _codec.plfreq; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 int32_t FilePlayerImpl::AudioCodec(CodecInst* audioCodec) const { | |
| 111 *audioCodec = _codec; | |
| 112 return 0; | |
| 113 } | |
| 114 | |
| 115 int32_t FilePlayerImpl::Get10msAudioFromFile(int16_t* outBuffer, | |
| 116 size_t* lengthInSamples, | |
| 117 int frequencyInHz) { | |
| 118 if (_codec.plfreq == 0) { | |
| 119 LOG(LS_WARNING) << "Get10msAudioFromFile() playing not started!" | |
| 120 << " codec freq = " << _codec.plfreq | |
| 121 << ", wanted freq = " << frequencyInHz; | |
| 122 return -1; | |
| 123 } | |
| 124 | |
| 125 AudioFrame unresampledAudioFrame; | |
| 126 if (STR_CASE_CMP(_codec.plname, "L16") == 0) { | |
| 127 unresampledAudioFrame.sample_rate_hz_ = _codec.plfreq; | |
| 128 | |
| 129 // L16 is un-encoded data. Just pull 10 ms. | |
| 130 size_t lengthInBytes = sizeof(unresampledAudioFrame.data_); | |
| 131 if (_fileModule.PlayoutAudioData( | |
| 132 reinterpret_cast<int8_t*>(unresampledAudioFrame.data_), | |
| 133 lengthInBytes) == -1) { | |
| 134 // End of file reached. | |
| 135 return -1; | |
| 136 } | |
| 137 if (lengthInBytes == 0) { | |
| 138 *lengthInSamples = 0; | |
| 139 return 0; | |
| 140 } | |
| 141 // One sample is two bytes. | |
| 142 unresampledAudioFrame.samples_per_channel_ = lengthInBytes >> 1; | |
| 143 | |
| 144 } else { | |
| 145 // Decode will generate 10 ms of audio data. PlayoutAudioData(..) | |
| 146 // expects a full frame. If the frame size is larger than 10 ms, | |
| 147 // PlayoutAudioData(..) data should be called proportionally less often. | |
| 148 int16_t encodedBuffer[MAX_AUDIO_BUFFER_IN_SAMPLES]; | |
| 149 size_t encodedLengthInBytes = 0; | |
| 150 if (++_numberOf10MsInDecoder >= _numberOf10MsPerFrame) { | |
| 151 _numberOf10MsInDecoder = 0; | |
| 152 size_t bytesFromFile = sizeof(encodedBuffer); | |
| 153 if (_fileModule.PlayoutAudioData(reinterpret_cast<int8_t*>(encodedBuffer), | |
| 154 bytesFromFile) == -1) { | |
| 155 // End of file reached. | |
| 156 return -1; | |
| 157 } | |
| 158 encodedLengthInBytes = bytesFromFile; | |
| 159 } | |
| 160 if (_audioDecoder.Decode(&unresampledAudioFrame, frequencyInHz, | |
| 161 reinterpret_cast<int8_t*>(encodedBuffer), | |
| 162 encodedLengthInBytes) == -1) { | |
| 163 return -1; | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 size_t outLen = 0; | |
| 168 if (_resampler.ResetIfNeeded(unresampledAudioFrame.sample_rate_hz_, | |
| 169 frequencyInHz, 1)) { | |
| 170 LOG(LS_WARNING) << "Get10msAudioFromFile() unexpected codec."; | |
| 171 | |
| 172 // New sampling frequency. Update state. | |
| 173 outLen = static_cast<size_t>(frequencyInHz / 100); | |
| 174 memset(outBuffer, 0, outLen * sizeof(int16_t)); | |
| 175 return 0; | |
| 176 } | |
| 177 _resampler.Push(unresampledAudioFrame.data_, | |
| 178 unresampledAudioFrame.samples_per_channel_, outBuffer, | |
| 179 MAX_AUDIO_BUFFER_IN_SAMPLES, outLen); | |
| 180 | |
| 181 *lengthInSamples = outLen; | |
| 182 | |
| 183 if (_scaling != 1.0) { | |
| 184 for (size_t i = 0; i < outLen; i++) { | |
| 185 outBuffer[i] = (int16_t)(outBuffer[i] * _scaling); | |
| 186 } | |
| 187 } | |
| 188 _decodedLengthInMS += 10; | |
| 189 return 0; | |
| 190 } | |
| 191 | |
| 192 int32_t FilePlayerImpl::RegisterModuleFileCallback(FileCallback* callback) { | |
| 193 return _fileModule.SetModuleFileCallback(callback); | |
| 194 } | |
| 195 | |
| 196 int32_t FilePlayerImpl::SetAudioScaling(float scaleFactor) { | |
| 197 if ((scaleFactor >= 0) && (scaleFactor <= 2.0)) { | |
| 198 _scaling = scaleFactor; | |
| 199 return 0; | |
| 200 } | |
| 201 LOG(LS_WARNING) << "SetAudioScaling() non-allowed scale factor."; | |
| 202 return -1; | |
| 203 } | |
| 204 | |
| 205 int32_t FilePlayerImpl::StartPlayingFile(const char* fileName, | |
| 206 bool loop, | |
| 207 uint32_t startPosition, | |
| 208 float volumeScaling, | |
| 209 uint32_t notification, | |
| 210 uint32_t stopPosition, | |
| 211 const CodecInst* codecInst) { | |
| 212 if (_fileFormat == kFileFormatPcm16kHzFile || | |
| 213 _fileFormat == kFileFormatPcm8kHzFile || | |
| 214 _fileFormat == kFileFormatPcm32kHzFile) { | |
| 215 CodecInst codecInstL16; | |
| 216 strncpy(codecInstL16.plname, "L16", 32); | |
| 217 codecInstL16.pltype = 93; | |
| 218 codecInstL16.channels = 1; | |
| 219 | |
| 220 if (_fileFormat == kFileFormatPcm8kHzFile) { | |
| 221 codecInstL16.rate = 128000; | |
| 222 codecInstL16.plfreq = 8000; | |
| 223 codecInstL16.pacsize = 80; | |
| 224 | |
| 225 } else if (_fileFormat == kFileFormatPcm16kHzFile) { | |
| 226 codecInstL16.rate = 256000; | |
| 227 codecInstL16.plfreq = 16000; | |
| 228 codecInstL16.pacsize = 160; | |
| 229 | |
| 230 } else if (_fileFormat == kFileFormatPcm32kHzFile) { | |
| 231 codecInstL16.rate = 512000; | |
| 232 codecInstL16.plfreq = 32000; | |
| 233 codecInstL16.pacsize = 160; | |
| 234 } else { | |
| 235 LOG(LS_ERROR) << "StartPlayingFile() sample frequency not " | |
| 236 << "supported for PCM format."; | |
| 237 return -1; | |
| 238 } | |
| 239 | |
| 240 if (_fileModule.StartPlayingAudioFile(fileName, notification, loop, | |
| 241 _fileFormat, &codecInstL16, | |
| 242 startPosition, stopPosition) == -1) { | |
| 243 LOG(LS_WARNING) << "StartPlayingFile() failed to initialize " | |
| 244 << "pcm file " << fileName; | |
| 245 return -1; | |
| 246 } | |
| 247 SetAudioScaling(volumeScaling); | |
| 248 } else if (_fileFormat == kFileFormatPreencodedFile) { | |
| 249 if (_fileModule.StartPlayingAudioFile(fileName, notification, loop, | |
| 250 _fileFormat, codecInst) == -1) { | |
| 251 LOG(LS_WARNING) << "StartPlayingFile() failed to initialize " | |
| 252 << "pre-encoded file " << fileName; | |
| 253 return -1; | |
| 254 } | |
| 255 } else { | |
| 256 CodecInst* no_inst = NULL; | |
| 257 if (_fileModule.StartPlayingAudioFile(fileName, notification, loop, | |
| 258 _fileFormat, no_inst, startPosition, | |
| 259 stopPosition) == -1) { | |
| 260 LOG(LS_WARNING) << "StartPlayingFile() failed to initialize file " | |
| 261 << fileName; | |
| 262 return -1; | |
| 263 } | |
| 264 SetAudioScaling(volumeScaling); | |
| 265 } | |
| 266 if (SetUpAudioDecoder() == -1) { | |
| 267 StopPlayingFile(); | |
| 268 return -1; | |
| 269 } | |
| 270 return 0; | |
| 271 } | |
| 272 | |
| 273 int32_t FilePlayerImpl::StartPlayingFile(InStream* sourceStream, | |
| 274 uint32_t startPosition, | |
| 275 float volumeScaling, | |
| 276 uint32_t notification, | |
| 277 uint32_t stopPosition, | |
| 278 const CodecInst* codecInst) { | |
| 279 if (_fileFormat == kFileFormatPcm16kHzFile || | |
| 280 _fileFormat == kFileFormatPcm32kHzFile || | |
| 281 _fileFormat == kFileFormatPcm8kHzFile) { | |
| 282 CodecInst codecInstL16; | |
| 283 strncpy(codecInstL16.plname, "L16", 32); | |
| 284 codecInstL16.pltype = 93; | |
| 285 codecInstL16.channels = 1; | |
| 286 | |
| 287 if (_fileFormat == kFileFormatPcm8kHzFile) { | |
| 288 codecInstL16.rate = 128000; | |
| 289 codecInstL16.plfreq = 8000; | |
| 290 codecInstL16.pacsize = 80; | |
| 291 | |
| 292 } else if (_fileFormat == kFileFormatPcm16kHzFile) { | |
| 293 codecInstL16.rate = 256000; | |
| 294 codecInstL16.plfreq = 16000; | |
| 295 codecInstL16.pacsize = 160; | |
| 296 | |
| 297 } else if (_fileFormat == kFileFormatPcm32kHzFile) { | |
| 298 codecInstL16.rate = 512000; | |
| 299 codecInstL16.plfreq = 32000; | |
| 300 codecInstL16.pacsize = 160; | |
| 301 } else { | |
| 302 LOG(LS_ERROR) << "StartPlayingFile() sample frequency not " | |
| 303 << "supported for PCM format."; | |
| 304 return -1; | |
| 305 } | |
| 306 if (_fileModule.StartPlayingAudioStream( | |
| 307 *sourceStream, notification, _fileFormat, &codecInstL16, | |
| 308 startPosition, stopPosition) == -1) { | |
| 309 LOG(LS_ERROR) << "StartPlayingFile() failed to initialize stream " | |
| 310 << "playout."; | |
| 311 return -1; | |
| 312 } | |
| 313 | |
| 314 } else if (_fileFormat == kFileFormatPreencodedFile) { | |
| 315 if (_fileModule.StartPlayingAudioStream(*sourceStream, notification, | |
| 316 _fileFormat, codecInst) == -1) { | |
| 317 LOG(LS_ERROR) << "StartPlayingFile() failed to initialize stream " | |
| 318 << "playout."; | |
| 319 return -1; | |
| 320 } | |
| 321 } else { | |
| 322 CodecInst* no_inst = NULL; | |
| 323 if (_fileModule.StartPlayingAudioStream(*sourceStream, notification, | |
| 324 _fileFormat, no_inst, startPosition, | |
| 325 stopPosition) == -1) { | |
| 326 LOG(LS_ERROR) << "StartPlayingFile() failed to initialize stream " | |
| 327 << "playout."; | |
| 328 return -1; | |
| 329 } | |
| 330 } | |
| 331 SetAudioScaling(volumeScaling); | |
| 332 | |
| 333 if (SetUpAudioDecoder() == -1) { | |
| 334 StopPlayingFile(); | |
| 335 return -1; | |
| 336 } | |
| 337 return 0; | |
| 338 } | |
| 339 | |
| 340 int32_t FilePlayerImpl::StopPlayingFile() { | |
| 341 memset(&_codec, 0, sizeof(CodecInst)); | |
| 342 _numberOf10MsPerFrame = 0; | |
| 343 _numberOf10MsInDecoder = 0; | |
| 344 return _fileModule.StopPlaying(); | |
| 345 } | |
| 346 | |
| 347 bool FilePlayerImpl::IsPlayingFile() const { | |
| 348 return _fileModule.IsPlaying(); | |
| 349 } | |
| 350 | |
| 351 int32_t FilePlayerImpl::GetPlayoutPosition(uint32_t* durationMs) { | |
| 352 return _fileModule.PlayoutPositionMs(*durationMs); | |
| 353 } | |
| 354 | |
| 355 int32_t FilePlayerImpl::SetUpAudioDecoder() { | |
| 356 if ((_fileModule.codec_info(_codec) == -1)) { | |
| 357 LOG(LS_WARNING) << "Failed to retrieve codec info of file data."; | |
| 358 return -1; | |
| 359 } | |
| 360 if (STR_CASE_CMP(_codec.plname, "L16") != 0 && | |
| 361 _audioDecoder.SetDecodeCodec(_codec) == -1) { | |
| 362 LOG(LS_WARNING) << "SetUpAudioDecoder() codec " << _codec.plname | |
| 363 << " not supported."; | |
| 364 return -1; | |
| 365 } | |
| 366 _numberOf10MsPerFrame = _codec.pacsize / (_codec.plfreq / 100); | |
| 367 _numberOf10MsInDecoder = 0; | |
| 368 return 0; | |
| 369 } | |
| 370 | |
| 371 } // namespace | |
| 372 | |
| 373 std::unique_ptr<FilePlayer> FilePlayer::CreateFilePlayer( | |
| 374 uint32_t instanceID, | |
| 375 FileFormats fileFormat) { | |
| 376 switch (fileFormat) { | |
| 377 case kFileFormatWavFile: | |
| 378 case kFileFormatCompressedFile: | |
| 379 case kFileFormatPreencodedFile: | |
| 380 case kFileFormatPcm16kHzFile: | |
| 381 case kFileFormatPcm8kHzFile: | |
| 382 case kFileFormatPcm32kHzFile: | |
| 383 // audio formats | |
| 384 return std::unique_ptr<FilePlayer>( | |
| 385 new FilePlayerImpl(instanceID, fileFormat)); | |
| 386 default: | |
| 387 assert(false); | |
| 388 return nullptr; | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 } // namespace webrtc | |
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Chromium Code Reviews
Issue 2622493002:
Move FilePlayer and FileRecorder to Voice Engine (Closed)
