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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/voice_engine/file_recorder_impl.h" | |
| 12 | |
| 13 #include "webrtc/engine_configurations.h" | |
| 14 #include "webrtc/modules/media_file/media_file.h" | |
| 15 #include "webrtc/system_wrappers/include/logging.h" | |
| 16 | |
| 17 namespace webrtc { | |
| 18 FileRecorder* FileRecorder::CreateFileRecorder(uint32_t instanceID, | |
| 19 FileFormats fileFormat) | |
| 20 { | |
| 21 return new FileRecorderImpl(instanceID, fileFormat); | |
| 22 } | |
| 23 | |
| 24 void FileRecorder::DestroyFileRecorder(FileRecorder* recorder) | |
| 25 { | |
| 26 delete recorder; | |
| 27 } | |
| 28 | |
| 29 FileRecorderImpl::FileRecorderImpl(uint32_t instanceID, | |
| 30 FileFormats fileFormat) | |
| 31 : _instanceID(instanceID), | |
| 32 _fileFormat(fileFormat), | |
| 33 _moduleFile(MediaFile::CreateMediaFile(_instanceID)), | |
| 34 codec_info_(), | |
| 35 _audioBuffer(), | |
| 36 _audioEncoder(instanceID), | |
| 37 _audioResampler() | |
| 38 { | |
| 39 } | |
| 40 | |
| 41 FileRecorderImpl::~FileRecorderImpl() | |
| 42 { | |
| 43 MediaFile::DestroyMediaFile(_moduleFile); | |
| 44 } | |
| 45 | |
| 46 FileFormats FileRecorderImpl::RecordingFileFormat() const | |
| 47 { | |
| 48 return _fileFormat; | |
| 49 } | |
| 50 | |
| 51 int32_t FileRecorderImpl::RegisterModuleFileCallback( | |
| 52 FileCallback* callback) | |
| 53 { | |
| 54 if(_moduleFile == NULL) | |
| 55 { | |
| 56 return -1; | |
| 57 } | |
| 58 return _moduleFile->SetModuleFileCallback(callback); | |
| 59 } | |
| 60 | |
| 61 int32_t FileRecorderImpl::StartRecordingAudioFile( | |
| 62 const char* fileName, | |
| 63 const CodecInst& codecInst, | |
| 64 uint32_t notificationTimeMs) | |
| 65 { | |
| 66 if(_moduleFile == NULL) | |
| 67 { | |
| 68 return -1; | |
| 69 } | |
| 70 codec_info_ = codecInst; | |
| 71 int32_t retVal = 0; | |
| 72 retVal =_moduleFile->StartRecordingAudioFile(fileName, _fileFormat, | |
| 73 codecInst, | |
| 74 notificationTimeMs); | |
| 75 | |
| 76 if( retVal == 0) | |
| 77 { | |
| 78 retVal = SetUpAudioEncoder(); | |
| 79 } | |
| 80 if( retVal != 0) | |
| 81 { | |
| 82 LOG(LS_WARNING) << "Failed to initialize file " << fileName | |
| 83 << " for recording."; | |
| 84 | |
| 85 if(IsRecording()) | |
| 86 { | |
| 87 StopRecording(); | |
| 88 } | |
| 89 } | |
| 90 return retVal; | |
| 91 } | |
| 92 | |
| 93 int32_t FileRecorderImpl::StartRecordingAudioFile( | |
| 94 OutStream& destStream, | |
| 95 const CodecInst& codecInst, | |
| 96 uint32_t notificationTimeMs) | |
| 97 { | |
| 98 codec_info_ = codecInst; | |
| 99 int32_t retVal = _moduleFile->StartRecordingAudioStream( | |
| 100 destStream, | |
| 101 _fileFormat, | |
| 102 codecInst, | |
| 103 notificationTimeMs); | |
| 104 | |
| 105 if( retVal == 0) | |
| 106 { | |
| 107 retVal = SetUpAudioEncoder(); | |
| 108 } | |
| 109 if( retVal != 0) | |
| 110 { | |
| 111 LOG(LS_WARNING) << "Failed to initialize outStream for recording."; | |
| 112 | |
| 113 if(IsRecording()) | |
| 114 { | |
| 115 StopRecording(); | |
| 116 } | |
| 117 } | |
| 118 return retVal; | |
| 119 } | |
| 120 | |
| 121 int32_t FileRecorderImpl::StopRecording() | |
| 122 { | |
| 123 memset(&codec_info_, 0, sizeof(CodecInst)); | |
| 124 return _moduleFile->StopRecording(); | |
| 125 } | |
| 126 | |
| 127 bool FileRecorderImpl::IsRecording() const | |
| 128 { | |
| 129 return _moduleFile->IsRecording(); | |
| 130 } | |
| 131 | |
| 132 int32_t FileRecorderImpl::RecordAudioToFile( | |
| 133 const AudioFrame& incomingAudioFrame) | |
| 134 { | |
| 135 if (codec_info_.plfreq == 0) | |
| 136 { | |
| 137 LOG(LS_WARNING) << "RecordAudioToFile() recording audio is not " | |
| 138 << "turned on."; | |
| 139 return -1; | |
| 140 } | |
| 141 AudioFrame tempAudioFrame; | |
| 142 tempAudioFrame.samples_per_channel_ = 0; | |
| 143 if( incomingAudioFrame.num_channels_ == 2 && | |
| 144 !_moduleFile->IsStereo()) | |
| 145 { | |
| 146 // Recording mono but incoming audio is (interleaved) stereo. | |
| 147 tempAudioFrame.num_channels_ = 1; | |
| 148 tempAudioFrame.sample_rate_hz_ = incomingAudioFrame.sample_rate_hz_; | |
| 149 tempAudioFrame.samples_per_channel_ = | |
| 150 incomingAudioFrame.samples_per_channel_; | |
| 151 for (size_t i = 0; | |
| 152 i < (incomingAudioFrame.samples_per_channel_); i++) | |
| 153 { | |
| 154 // Sample value is the average of left and right buffer rounded to | |
| 155 // closest integer value. Note samples can be either 1 or 2 byte. | |
| 156 tempAudioFrame.data_[i] = | |
| 157 ((incomingAudioFrame.data_[2 * i] + | |
| 158 incomingAudioFrame.data_[(2 * i) + 1] + 1) >> 1); | |
| 159 } | |
| 160 } | |
| 161 else if( incomingAudioFrame.num_channels_ == 1 && | |
| 162 _moduleFile->IsStereo()) | |
| 163 { | |
| 164 // Recording stereo but incoming audio is mono. | |
| 165 tempAudioFrame.num_channels_ = 2; | |
| 166 tempAudioFrame.sample_rate_hz_ = incomingAudioFrame.sample_rate_hz_; | |
| 167 tempAudioFrame.samples_per_channel_ = | |
| 168 incomingAudioFrame.samples_per_channel_; | |
| 169 for (size_t i = 0; | |
| 170 i < (incomingAudioFrame.samples_per_channel_); i++) | |
| 171 { | |
| 172 // Duplicate sample to both channels | |
| 173 tempAudioFrame.data_[2*i] = | |
| 174 incomingAudioFrame.data_[i]; | |
| 175 tempAudioFrame.data_[2*i+1] = | |
| 176 incomingAudioFrame.data_[i]; | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 const AudioFrame* ptrAudioFrame = &incomingAudioFrame; | |
| 181 if(tempAudioFrame.samples_per_channel_ != 0) | |
| 182 { | |
| 183 // If ptrAudioFrame is not empty it contains the audio to be recorded. | |
| 184 ptrAudioFrame = &tempAudioFrame; | |
| 185 } | |
| 186 | |
| 187 // Encode the audio data before writing to file. Don't encode if the codec | |
| 188 // is PCM. | |
| 189 // NOTE: stereo recording is only supported for WAV files. | |
| 190 // TODO (hellner): WAV expect PCM in little endian byte order. Not | |
| 191 // "encoding" with PCM coder should be a problem for big endian systems. | |
| 192 size_t encodedLenInBytes = 0; | |
| 193 if (_fileFormat == kFileFormatPreencodedFile || | |
| 194 STR_CASE_CMP(codec_info_.plname, "L16") != 0) | |
| 195 { | |
| 196 if (_audioEncoder.Encode(*ptrAudioFrame, _audioBuffer, | |
| 197 encodedLenInBytes) == -1) | |
| 198 { | |
| 199 LOG(LS_WARNING) << "RecordAudioToFile() codec " | |
| 200 << codec_info_.plname | |
| 201 << " not supported or failed to encode stream."; | |
| 202 return -1; | |
| 203 } | |
| 204 } else { | |
| 205 size_t outLen = 0; | |
| 206 _audioResampler.ResetIfNeeded(ptrAudioFrame->sample_rate_hz_, | |
| 207 codec_info_.plfreq, | |
| 208 ptrAudioFrame->num_channels_); | |
| 209 _audioResampler.Push(ptrAudioFrame->data_, | |
| 210 ptrAudioFrame->samples_per_channel_ * | |
| 211 ptrAudioFrame->num_channels_, | |
| 212 (int16_t*)_audioBuffer, | |
| 213 MAX_AUDIO_BUFFER_IN_BYTES, outLen); | |
| 214 encodedLenInBytes = outLen * sizeof(int16_t); | |
| 215 } | |
| 216 | |
| 217 // Codec may not be operating at a frame rate of 10 ms. Whenever enough | |
| 218 // 10 ms chunks of data has been pushed to the encoder an encoded frame | |
| 219 // will be available. Wait until then. | |
| 220 if (encodedLenInBytes) | |
| 221 { | |
| 222 if (WriteEncodedAudioData(_audioBuffer, encodedLenInBytes) == -1) | |
| 223 { | |
| 224 return -1; | |
| 225 } | |
| 226 } | |
| 227 return 0; | |
| 228 } | |
| 229 | |
| 230 int32_t FileRecorderImpl::SetUpAudioEncoder() | |
| 231 { | |
| 232 if (_fileFormat == kFileFormatPreencodedFile || | |
| 233 STR_CASE_CMP(codec_info_.plname, "L16") != 0) | |
| 234 { | |
| 235 if(_audioEncoder.SetEncodeCodec(codec_info_) == -1) | |
| 236 { | |
| 237 LOG(LS_ERROR) << "SetUpAudioEncoder() codec " | |
| 238 << codec_info_.plname << " not supported."; | |
| 239 return -1; | |
| 240 } | |
| 241 } | |
| 242 return 0; | |
| 243 } | |
| 244 | |
| 245 int32_t FileRecorderImpl::codec_info(CodecInst& codecInst) const | |
| 246 { | |
| 247 if(codec_info_.plfreq == 0) | |
| 248 { | |
| 249 return -1; | |
| 250 } | |
| 251 codecInst = codec_info_; | |
| 252 return 0; | |
| 253 } | |
| 254 | |
| 255 int32_t FileRecorderImpl::WriteEncodedAudioData(const int8_t* audioBuffer, | |
| 256 size_t bufferLength) | |
| 257 { | |
| 258 return _moduleFile->IncomingAudioData(audioBuffer, bufferLength); | |
| 259 } | |
| 260 } // namespace webrtc | |
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Chromium Code Reviews
Issue 2245413002:
Revert of Move FilePlayer and FileRecorder to Voice Engine (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master