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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 "voice_engine/file_player.h" | |
| 12 | |
| 13 #include "common_audio/resampler/include/resampler.h" | |
| 14 #include "common_types.h" // NOLINT(build/include) | |
| 15 #include "modules/media_file/media_file.h" | |
| 16 #include "modules/media_file/media_file_defines.h" | |
| 17 #include "rtc_base/logging.h" | |
| 18 #include "typedefs.h" // NOLINT(build/include) | |
| 19 #include "voice_engine/coder.h" | |
| 20 | |
| 21 namespace webrtc { | |
| 22 | |
| 23 namespace { | |
| 24 | |
| 25 class FilePlayerImpl : public FilePlayer { | |
| 26 public: | |
| 27 FilePlayerImpl(uint32_t instanceID, FileFormats fileFormat); | |
| 28 ~FilePlayerImpl() override; | |
| 29 | |
| 30 int Get10msAudioFromFile(int16_t* outBuffer, | |
| 31 size_t* lengthInSamples, | |
| 32 int frequencyInHz) override; | |
| 33 int32_t RegisterModuleFileCallback(FileCallback* callback) override; | |
| 34 int32_t StartPlayingFile(const char* fileName, | |
| 35 bool loop, | |
| 36 uint32_t startPosition, | |
| 37 float volumeScaling, | |
| 38 uint32_t notification, | |
| 39 uint32_t stopPosition, | |
| 40 const CodecInst* codecInst) override; | |
| 41 int32_t StartPlayingFile(InStream* sourceStream, | |
| 42 uint32_t startPosition, | |
| 43 float volumeScaling, | |
| 44 uint32_t notification, | |
| 45 uint32_t stopPosition, | |
| 46 const CodecInst* codecInst) override; | |
| 47 int32_t StopPlayingFile() override; | |
| 48 bool IsPlayingFile() const override; | |
| 49 int32_t GetPlayoutPosition(uint32_t* durationMs) override; | |
| 50 int32_t AudioCodec(CodecInst* audioCodec) const override; | |
| 51 int32_t Frequency() const override; | |
| 52 int32_t SetAudioScaling(float scaleFactor) override; | |
| 53 | |
| 54 private: | |
| 55 int32_t SetUpAudioDecoder(); | |
| 56 | |
| 57 const FileFormats _fileFormat; | |
| 58 MediaFile& _fileModule; | |
| 59 | |
| 60 uint32_t _decodedLengthInMS; | |
| 61 | |
| 62 AudioCoder _audioDecoder; | |
| 63 | |
| 64 CodecInst _codec; | |
| 65 int32_t _numberOf10MsPerFrame; | |
| 66 int32_t _numberOf10MsInDecoder; | |
| 67 | |
| 68 Resampler _resampler; | |
| 69 float _scaling; | |
| 70 }; | |
| 71 | |
| 72 FilePlayerImpl::FilePlayerImpl(const uint32_t instanceID, | |
| 73 const FileFormats fileFormat) | |
| 74 : _fileFormat(fileFormat), | |
| 75 _fileModule(*MediaFile::CreateMediaFile(instanceID)), | |
| 76 _decodedLengthInMS(0), | |
| 77 _audioDecoder(instanceID), | |
| 78 _codec(), | |
| 79 _numberOf10MsPerFrame(0), | |
| 80 _numberOf10MsInDecoder(0), | |
| 81 _resampler(), | |
| 82 _scaling(1.0) { | |
| 83 _codec.plfreq = 0; | |
| 84 } | |
| 85 | |
| 86 FilePlayerImpl::~FilePlayerImpl() { | |
| 87 MediaFile::DestroyMediaFile(&_fileModule); | |
| 88 } | |
| 89 | |
| 90 int32_t FilePlayerImpl::Frequency() const { | |
| 91 if (_codec.plfreq == 0) { | |
| 92 return -1; | |
| 93 } | |
| 94 // Make sure that sample rate is 8,16 or 32 kHz. E.g. WAVE files may have | |
| 95 // other sampling rates. | |
| 96 if (_codec.plfreq == 11000) { | |
| 97 return 16000; | |
| 98 } else if (_codec.plfreq == 22000) { | |
| 99 return 32000; | |
| 100 } else if (_codec.plfreq == 44000) { | |
| 101 return 32000; | |
| 102 } else if (_codec.plfreq == 48000) { | |
| 103 return 48000; | |
| 104 } else { | |
| 105 return _codec.plfreq; | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 int32_t FilePlayerImpl::AudioCodec(CodecInst* audioCodec) const { | |
| 110 *audioCodec = _codec; | |
| 111 return 0; | |
| 112 } | |
| 113 | |
| 114 int32_t FilePlayerImpl::Get10msAudioFromFile(int16_t* outBuffer, | |
| 115 size_t* lengthInSamples, | |
| 116 int frequencyInHz) { | |
| 117 if (_codec.plfreq == 0) { | |
| 118 LOG(LS_WARNING) << "Get10msAudioFromFile() playing not started!" | |
| 119 << " codec freq = " << _codec.plfreq | |
| 120 << ", wanted freq = " << frequencyInHz; | |
| 121 return -1; | |
| 122 } | |
| 123 | |
| 124 AudioFrame unresampledAudioFrame; | |
| 125 if (STR_CASE_CMP(_codec.plname, "L16") == 0) { | |
| 126 unresampledAudioFrame.sample_rate_hz_ = _codec.plfreq; | |
| 127 | |
| 128 // L16 is un-encoded data. Just pull 10 ms. | |
| 129 size_t lengthInBytes = AudioFrame::kMaxDataSizeBytes; | |
| 130 if (_fileModule.PlayoutAudioData( | |
| 131 reinterpret_cast<int8_t*>(unresampledAudioFrame.mutable_data()), | |
| 132 lengthInBytes) == -1) { | |
| 133 // End of file reached. | |
| 134 return -1; | |
| 135 } | |
| 136 if (lengthInBytes == 0) { | |
| 137 *lengthInSamples = 0; | |
| 138 return 0; | |
| 139 } | |
| 140 // One sample is two bytes. | |
| 141 unresampledAudioFrame.samples_per_channel_ = lengthInBytes >> 1; | |
| 142 | |
| 143 } else { | |
| 144 // Decode will generate 10 ms of audio data. PlayoutAudioData(..) | |
| 145 // expects a full frame. If the frame size is larger than 10 ms, | |
| 146 // PlayoutAudioData(..) data should be called proportionally less often. | |
| 147 int16_t encodedBuffer[MAX_AUDIO_BUFFER_IN_SAMPLES]; | |
| 148 size_t encodedLengthInBytes = 0; | |
| 149 if (++_numberOf10MsInDecoder >= _numberOf10MsPerFrame) { | |
| 150 _numberOf10MsInDecoder = 0; | |
| 151 size_t bytesFromFile = sizeof(encodedBuffer); | |
| 152 if (_fileModule.PlayoutAudioData(reinterpret_cast<int8_t*>(encodedBuffer), | |
| 153 bytesFromFile) == -1) { | |
| 154 // End of file reached. | |
| 155 return -1; | |
| 156 } | |
| 157 encodedLengthInBytes = bytesFromFile; | |
| 158 } | |
| 159 if (_audioDecoder.Decode(&unresampledAudioFrame, frequencyInHz, | |
| 160 reinterpret_cast<int8_t*>(encodedBuffer), | |
| 161 encodedLengthInBytes) == -1) { | |
| 162 return -1; | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 size_t outLen = 0; | |
| 167 if (_resampler.ResetIfNeeded(unresampledAudioFrame.sample_rate_hz_, | |
| 168 frequencyInHz, 1)) { | |
| 169 LOG(LS_WARNING) << "Get10msAudioFromFile() unexpected codec."; | |
| 170 | |
| 171 // New sampling frequency. Update state. | |
| 172 outLen = static_cast<size_t>(frequencyInHz / 100); | |
| 173 memset(outBuffer, 0, outLen * sizeof(int16_t)); | |
| 174 return 0; | |
| 175 } | |
| 176 _resampler.Push(unresampledAudioFrame.data(), | |
| 177 unresampledAudioFrame.samples_per_channel_, outBuffer, | |
| 178 MAX_AUDIO_BUFFER_IN_SAMPLES, outLen); | |
| 179 | |
| 180 *lengthInSamples = outLen; | |
| 181 | |
| 182 if (_scaling != 1.0) { | |
| 183 for (size_t i = 0; i < outLen; i++) { | |
| 184 outBuffer[i] = (int16_t)(outBuffer[i] * _scaling); | |
| 185 } | |
| 186 } | |
| 187 _decodedLengthInMS += 10; | |
| 188 return 0; | |
| 189 } | |
| 190 | |
| 191 int32_t FilePlayerImpl::RegisterModuleFileCallback(FileCallback* callback) { | |
| 192 return _fileModule.SetModuleFileCallback(callback); | |
| 193 } | |
| 194 | |
| 195 int32_t FilePlayerImpl::SetAudioScaling(float scaleFactor) { | |
| 196 if ((scaleFactor >= 0) && (scaleFactor <= 2.0)) { | |
| 197 _scaling = scaleFactor; | |
| 198 return 0; | |
| 199 } | |
| 200 LOG(LS_WARNING) << "SetAudioScaling() non-allowed scale factor."; | |
| 201 return -1; | |
| 202 } | |
| 203 | |
| 204 int32_t FilePlayerImpl::StartPlayingFile(const char* fileName, | |
| 205 bool loop, | |
| 206 uint32_t startPosition, | |
| 207 float volumeScaling, | |
| 208 uint32_t notification, | |
| 209 uint32_t stopPosition, | |
| 210 const CodecInst* codecInst) { | |
| 211 if (_fileFormat == kFileFormatPcm16kHzFile || | |
| 212 _fileFormat == kFileFormatPcm8kHzFile || | |
| 213 _fileFormat == kFileFormatPcm32kHzFile) { | |
| 214 CodecInst codecInstL16; | |
| 215 strncpy(codecInstL16.plname, "L16", 32); | |
| 216 codecInstL16.pltype = 93; | |
| 217 codecInstL16.channels = 1; | |
| 218 | |
| 219 if (_fileFormat == kFileFormatPcm8kHzFile) { | |
| 220 codecInstL16.rate = 128000; | |
| 221 codecInstL16.plfreq = 8000; | |
| 222 codecInstL16.pacsize = 80; | |
| 223 } else if (_fileFormat == kFileFormatPcm16kHzFile) { | |
| 224 codecInstL16.rate = 256000; | |
| 225 codecInstL16.plfreq = 16000; | |
| 226 codecInstL16.pacsize = 160; | |
| 227 } else if (_fileFormat == kFileFormatPcm32kHzFile) { | |
| 228 codecInstL16.rate = 512000; | |
| 229 codecInstL16.plfreq = 32000; | |
| 230 codecInstL16.pacsize = 320; | |
| 231 } else if (_fileFormat == kFileFormatPcm48kHzFile) { | |
| 232 codecInstL16.rate = 768000; | |
| 233 codecInstL16.plfreq = 48000; | |
| 234 codecInstL16.pacsize = 480; | |
| 235 } else { | |
| 236 LOG(LS_ERROR) << "StartPlayingFile() sample frequency not " | |
| 237 << "supported for PCM format."; | |
| 238 return -1; | |
| 239 } | |
| 240 | |
| 241 if (_fileModule.StartPlayingAudioFile(fileName, notification, loop, | |
| 242 _fileFormat, &codecInstL16, | |
| 243 startPosition, stopPosition) == -1) { | |
| 244 LOG(LS_WARNING) << "StartPlayingFile() failed to initialize " | |
| 245 << "pcm file " << fileName; | |
| 246 return -1; | |
| 247 } | |
| 248 SetAudioScaling(volumeScaling); | |
| 249 } else if (_fileFormat == kFileFormatPreencodedFile) { | |
| 250 if (_fileModule.StartPlayingAudioFile(fileName, notification, loop, | |
| 251 _fileFormat, codecInst) == -1) { | |
| 252 LOG(LS_WARNING) << "StartPlayingFile() failed to initialize " | |
| 253 << "pre-encoded file " << fileName; | |
| 254 return -1; | |
| 255 } | |
| 256 } else { | |
| 257 CodecInst* no_inst = NULL; | |
| 258 if (_fileModule.StartPlayingAudioFile(fileName, notification, loop, | |
| 259 _fileFormat, no_inst, startPosition, | |
| 260 stopPosition) == -1) { | |
| 261 LOG(LS_WARNING) << "StartPlayingFile() failed to initialize file " | |
| 262 << fileName; | |
| 263 return -1; | |
| 264 } | |
| 265 SetAudioScaling(volumeScaling); | |
| 266 } | |
| 267 if (SetUpAudioDecoder() == -1) { | |
| 268 StopPlayingFile(); | |
| 269 return -1; | |
| 270 } | |
| 271 return 0; | |
| 272 } | |
| 273 | |
| 274 int32_t FilePlayerImpl::StartPlayingFile(InStream* sourceStream, | |
| 275 uint32_t startPosition, | |
| 276 float volumeScaling, | |
| 277 uint32_t notification, | |
| 278 uint32_t stopPosition, | |
| 279 const CodecInst* codecInst) { | |
| 280 if (_fileFormat == kFileFormatPcm16kHzFile || | |
| 281 _fileFormat == kFileFormatPcm32kHzFile || | |
| 282 _fileFormat == kFileFormatPcm8kHzFile || | |
| 283 _fileFormat == kFileFormatPcm48kHzFile) { | |
| 284 CodecInst codecInstL16; | |
| 285 strncpy(codecInstL16.plname, "L16", 32); | |
| 286 codecInstL16.pltype = 93; | |
| 287 codecInstL16.channels = 1; | |
| 288 | |
| 289 if (_fileFormat == kFileFormatPcm8kHzFile) { | |
| 290 codecInstL16.rate = 128000; | |
| 291 codecInstL16.plfreq = 8000; | |
| 292 codecInstL16.pacsize = 80; | |
| 293 } else if (_fileFormat == kFileFormatPcm16kHzFile) { | |
| 294 codecInstL16.rate = 256000; | |
| 295 codecInstL16.plfreq = 16000; | |
| 296 codecInstL16.pacsize = 160; | |
| 297 } else if (_fileFormat == kFileFormatPcm32kHzFile) { | |
| 298 codecInstL16.rate = 512000; | |
| 299 codecInstL16.plfreq = 32000; | |
| 300 codecInstL16.pacsize = 320; | |
| 301 } else if (_fileFormat == kFileFormatPcm48kHzFile) { | |
| 302 codecInstL16.rate = 768000; | |
| 303 codecInstL16.plfreq = 48000; | |
| 304 codecInstL16.pacsize = 480; | |
| 305 } else { | |
| 306 LOG(LS_ERROR) << "StartPlayingFile() sample frequency not " | |
| 307 << "supported for PCM format."; | |
| 308 return -1; | |
| 309 } | |
| 310 if (_fileModule.StartPlayingAudioStream( | |
| 311 *sourceStream, notification, _fileFormat, &codecInstL16, | |
| 312 startPosition, stopPosition) == -1) { | |
| 313 LOG(LS_ERROR) << "StartPlayingFile() failed to initialize stream " | |
| 314 << "playout."; | |
| 315 return -1; | |
| 316 } | |
| 317 | |
| 318 } else if (_fileFormat == kFileFormatPreencodedFile) { | |
| 319 if (_fileModule.StartPlayingAudioStream(*sourceStream, notification, | |
| 320 _fileFormat, codecInst) == -1) { | |
| 321 LOG(LS_ERROR) << "StartPlayingFile() failed to initialize stream " | |
| 322 << "playout."; | |
| 323 return -1; | |
| 324 } | |
| 325 } else { | |
| 326 CodecInst* no_inst = NULL; | |
| 327 if (_fileModule.StartPlayingAudioStream(*sourceStream, notification, | |
| 328 _fileFormat, no_inst, startPosition, | |
| 329 stopPosition) == -1) { | |
| 330 LOG(LS_ERROR) << "StartPlayingFile() failed to initialize stream " | |
| 331 << "playout."; | |
| 332 return -1; | |
| 333 } | |
| 334 } | |
| 335 SetAudioScaling(volumeScaling); | |
| 336 | |
| 337 if (SetUpAudioDecoder() == -1) { | |
| 338 StopPlayingFile(); | |
| 339 return -1; | |
| 340 } | |
| 341 return 0; | |
| 342 } | |
| 343 | |
| 344 int32_t FilePlayerImpl::StopPlayingFile() { | |
| 345 memset(&_codec, 0, sizeof(CodecInst)); | |
| 346 _numberOf10MsPerFrame = 0; | |
| 347 _numberOf10MsInDecoder = 0; | |
| 348 return _fileModule.StopPlaying(); | |
| 349 } | |
| 350 | |
| 351 bool FilePlayerImpl::IsPlayingFile() const { | |
| 352 return _fileModule.IsPlaying(); | |
| 353 } | |
| 354 | |
| 355 int32_t FilePlayerImpl::GetPlayoutPosition(uint32_t* durationMs) { | |
| 356 return _fileModule.PlayoutPositionMs(*durationMs); | |
| 357 } | |
| 358 | |
| 359 int32_t FilePlayerImpl::SetUpAudioDecoder() { | |
| 360 if ((_fileModule.codec_info(_codec) == -1)) { | |
| 361 LOG(LS_WARNING) << "Failed to retrieve codec info of file data."; | |
| 362 return -1; | |
| 363 } | |
| 364 if (STR_CASE_CMP(_codec.plname, "L16") != 0 && | |
| 365 _audioDecoder.SetDecodeCodec(_codec) == -1) { | |
| 366 LOG(LS_WARNING) << "SetUpAudioDecoder() codec " << _codec.plname | |
| 367 << " not supported."; | |
| 368 return -1; | |
| 369 } | |
| 370 _numberOf10MsPerFrame = _codec.pacsize / (_codec.plfreq / 100); | |
| 371 _numberOf10MsInDecoder = 0; | |
| 372 return 0; | |
| 373 } | |
| 374 | |
| 375 } // namespace | |
| 376 | |
| 377 std::unique_ptr<FilePlayer> FilePlayer::CreateFilePlayer( | |
| 378 uint32_t instanceID, | |
| 379 FileFormats fileFormat) { | |
| 380 switch (fileFormat) { | |
| 381 case kFileFormatWavFile: | |
| 382 case kFileFormatCompressedFile: | |
| 383 case kFileFormatPreencodedFile: | |
| 384 case kFileFormatPcm16kHzFile: | |
| 385 case kFileFormatPcm8kHzFile: | |
| 386 case kFileFormatPcm32kHzFile: | |
| 387 case kFileFormatPcm48kHzFile: | |
| 388 // audio formats | |
| 389 return std::unique_ptr<FilePlayer>( | |
| 390 new FilePlayerImpl(instanceID, fileFormat)); | |
| 391 default: | |
| 392 assert(false); | |
| 393 return nullptr; | |
| 394 } | |
| 395 } | |
| 396 | |
| 397 } // namespace webrtc | |
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Chromium Code Reviews
Issue 3013033002:
Remove VoEFile (Closed)
