| /* |
| * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <assert.h> |
| |
| #include "webrtc/base/format_macros.h" |
| #include "webrtc/modules/media_file/media_file_impl.h" |
| #include "webrtc/system_wrappers/include/critical_section_wrapper.h" |
| #include "webrtc/system_wrappers/include/file_wrapper.h" |
| #include "webrtc/system_wrappers/include/trace.h" |
| |
| namespace webrtc { |
| MediaFile* MediaFile::CreateMediaFile(const int32_t id) |
| { |
| return new MediaFileImpl(id); |
| } |
| |
| void MediaFile::DestroyMediaFile(MediaFile* module) |
| { |
| delete static_cast<MediaFileImpl*>(module); |
| } |
| |
| MediaFileImpl::MediaFileImpl(const int32_t id) |
| : _id(id), |
| _crit(CriticalSectionWrapper::CreateCriticalSection()), |
| _callbackCrit(CriticalSectionWrapper::CreateCriticalSection()), |
| _ptrFileUtilityObj(NULL), |
| codec_info_(), |
| _ptrInStream(NULL), |
| _ptrOutStream(NULL), |
| _fileFormat((FileFormats)-1), |
| _recordDurationMs(0), |
| _playoutPositionMs(0), |
| _notificationMs(0), |
| _playingActive(false), |
| _recordingActive(false), |
| _isStereo(false), |
| _openFile(false), |
| _fileName(), |
| _ptrCallback(NULL) |
| { |
| WEBRTC_TRACE(kTraceMemory, kTraceFile, id, "Created"); |
| |
| codec_info_.plname[0] = '\0'; |
| _fileName[0] = '\0'; |
| } |
| |
| |
| MediaFileImpl::~MediaFileImpl() |
| { |
| WEBRTC_TRACE(kTraceMemory, kTraceFile, _id, "~MediaFileImpl()"); |
| { |
| CriticalSectionScoped lock(_crit); |
| |
| if(_playingActive) |
| { |
| StopPlaying(); |
| } |
| |
| if(_recordingActive) |
| { |
| StopRecording(); |
| } |
| |
| delete _ptrFileUtilityObj; |
| |
| if(_openFile) |
| { |
| delete _ptrInStream; |
| _ptrInStream = NULL; |
| delete _ptrOutStream; |
| _ptrOutStream = NULL; |
| } |
| } |
| |
| delete _crit; |
| delete _callbackCrit; |
| } |
| |
| int64_t MediaFileImpl::TimeUntilNextProcess() |
| { |
| WEBRTC_TRACE( |
| kTraceWarning, |
| kTraceFile, |
| _id, |
| "TimeUntilNextProcess: This method is not used by MediaFile class."); |
| return -1; |
| } |
| |
| void MediaFileImpl::Process() |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Process: This method is not used by MediaFile class."); |
| } |
| |
| int32_t MediaFileImpl::PlayoutAudioData(int8_t* buffer, |
| size_t& dataLengthInBytes) |
| { |
| WEBRTC_TRACE(kTraceStream, kTraceFile, _id, |
| "MediaFileImpl::PlayoutData(buffer= 0x%x, bufLen= %" PRIuS ")", |
| buffer, dataLengthInBytes); |
| |
| const size_t bufferLengthInBytes = dataLengthInBytes; |
| dataLengthInBytes = 0; |
| |
| if(buffer == NULL || bufferLengthInBytes == 0) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Buffer pointer or length is NULL!"); |
| return -1; |
| } |
| |
| int32_t bytesRead = 0; |
| { |
| CriticalSectionScoped lock(_crit); |
| |
| if(!_playingActive) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Not currently playing!"); |
| return -1; |
| } |
| |
| if(!_ptrFileUtilityObj) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Playing, but no FileUtility object!"); |
| StopPlaying(); |
| return -1; |
| } |
| |
| switch(_fileFormat) |
| { |
| case kFileFormatPcm32kHzFile: |
| case kFileFormatPcm16kHzFile: |
| case kFileFormatPcm8kHzFile: |
| bytesRead = _ptrFileUtilityObj->ReadPCMData( |
| *_ptrInStream, |
| buffer, |
| bufferLengthInBytes); |
| break; |
| case kFileFormatCompressedFile: |
| bytesRead = _ptrFileUtilityObj->ReadCompressedData( |
| *_ptrInStream, |
| buffer, |
| bufferLengthInBytes); |
| break; |
| case kFileFormatWavFile: |
| bytesRead = _ptrFileUtilityObj->ReadWavDataAsMono( |
| *_ptrInStream, |
| buffer, |
| bufferLengthInBytes); |
| break; |
| case kFileFormatPreencodedFile: |
| bytesRead = _ptrFileUtilityObj->ReadPreEncodedData( |
| *_ptrInStream, |
| buffer, |
| bufferLengthInBytes); |
| if(bytesRead > 0) |
| { |
| dataLengthInBytes = static_cast<size_t>(bytesRead); |
| return 0; |
| } |
| break; |
| default: |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Invalid file format: %d", _fileFormat); |
| assert(false); |
| break; |
| } |
| } |
| |
| if( bytesRead > 0) |
| { |
| dataLengthInBytes = static_cast<size_t>(bytesRead); |
| } |
| } |
| HandlePlayCallbacks(bytesRead); |
| return 0; |
| } |
| |
| void MediaFileImpl::HandlePlayCallbacks(int32_t bytesRead) |
| { |
| bool playEnded = false; |
| uint32_t callbackNotifyMs = 0; |
| |
| if(bytesRead > 0) |
| { |
| // Check if it's time for PlayNotification(..). |
| _playoutPositionMs = _ptrFileUtilityObj->PlayoutPositionMs(); |
| if(_notificationMs) |
| { |
| if(_playoutPositionMs >= _notificationMs) |
| { |
| _notificationMs = 0; |
| callbackNotifyMs = _playoutPositionMs; |
| } |
| } |
| } |
| else |
| { |
| // If no bytes were read assume end of file. |
| StopPlaying(); |
| playEnded = true; |
| } |
| |
| // Only _callbackCrit may and should be taken when making callbacks. |
| CriticalSectionScoped lock(_callbackCrit); |
| if(_ptrCallback) |
| { |
| if(callbackNotifyMs) |
| { |
| _ptrCallback->PlayNotification(_id, callbackNotifyMs); |
| } |
| if(playEnded) |
| { |
| _ptrCallback->PlayFileEnded(_id); |
| } |
| } |
| } |
| |
| int32_t MediaFileImpl::PlayoutStereoData( |
| int8_t* bufferLeft, |
| int8_t* bufferRight, |
| size_t& dataLengthInBytes) |
| { |
| WEBRTC_TRACE(kTraceStream, kTraceFile, _id, |
| "MediaFileImpl::PlayoutStereoData(Left = 0x%x, Right = 0x%x," |
| " Len= %" PRIuS ")", |
| bufferLeft, |
| bufferRight, |
| dataLengthInBytes); |
| |
| const size_t bufferLengthInBytes = dataLengthInBytes; |
| dataLengthInBytes = 0; |
| |
| if(bufferLeft == NULL || bufferRight == NULL || bufferLengthInBytes == 0) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "A buffer pointer or the length is NULL!"); |
| return -1; |
| } |
| |
| bool playEnded = false; |
| uint32_t callbackNotifyMs = 0; |
| { |
| CriticalSectionScoped lock(_crit); |
| |
| if(!_playingActive || !_isStereo) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Not currently playing stereo!"); |
| return -1; |
| } |
| |
| if(!_ptrFileUtilityObj) |
| { |
| WEBRTC_TRACE( |
| kTraceError, |
| kTraceFile, |
| _id, |
| "Playing stereo, but the FileUtility objects is NULL!"); |
| StopPlaying(); |
| return -1; |
| } |
| |
| // Stereo playout only supported for WAV files. |
| int32_t bytesRead = 0; |
| switch(_fileFormat) |
| { |
| case kFileFormatWavFile: |
| bytesRead = _ptrFileUtilityObj->ReadWavDataAsStereo( |
| *_ptrInStream, |
| bufferLeft, |
| bufferRight, |
| bufferLengthInBytes); |
| break; |
| default: |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Trying to read non-WAV as stereo audio\ |
| (not supported)"); |
| break; |
| } |
| |
| if(bytesRead > 0) |
| { |
| dataLengthInBytes = static_cast<size_t>(bytesRead); |
| |
| // Check if it's time for PlayNotification(..). |
| _playoutPositionMs = _ptrFileUtilityObj->PlayoutPositionMs(); |
| if(_notificationMs) |
| { |
| if(_playoutPositionMs >= _notificationMs) |
| { |
| _notificationMs = 0; |
| callbackNotifyMs = _playoutPositionMs; |
| } |
| } |
| } |
| else |
| { |
| // If no bytes were read assume end of file. |
| StopPlaying(); |
| playEnded = true; |
| } |
| } |
| |
| CriticalSectionScoped lock(_callbackCrit); |
| if(_ptrCallback) |
| { |
| if(callbackNotifyMs) |
| { |
| _ptrCallback->PlayNotification(_id, callbackNotifyMs); |
| } |
| if(playEnded) |
| { |
| _ptrCallback->PlayFileEnded(_id); |
| } |
| } |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::StartPlayingAudioFile( |
| const char* fileName, |
| const uint32_t notificationTimeMs, |
| const bool loop, |
| const FileFormats format, |
| const CodecInst* codecInst, |
| const uint32_t startPointMs, |
| const uint32_t stopPointMs) |
| { |
| if(!ValidFileName(fileName)) |
| { |
| return -1; |
| } |
| if(!ValidFileFormat(format,codecInst)) |
| { |
| return -1; |
| } |
| if(!ValidFilePositions(startPointMs,stopPointMs)) |
| { |
| return -1; |
| } |
| |
| // Check that the file will play longer than notificationTimeMs ms. |
| if((startPointMs && stopPointMs && !loop) && |
| (notificationTimeMs > (stopPointMs - startPointMs))) |
| { |
| WEBRTC_TRACE( |
| kTraceError, |
| kTraceFile, |
| _id, |
| "specified notification time is longer than amount of ms that will\ |
| be played"); |
| return -1; |
| } |
| |
| FileWrapper* inputStream = FileWrapper::Create(); |
| if(inputStream == NULL) |
| { |
| WEBRTC_TRACE(kTraceMemory, kTraceFile, _id, |
| "Failed to allocate input stream for file %s", fileName); |
| return -1; |
| } |
| |
| if (!inputStream->OpenFile(fileName, true)) { |
| delete inputStream; |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, "Could not open input file %s", |
| fileName); |
| return -1; |
| } |
| |
| if(StartPlayingStream(*inputStream, loop, notificationTimeMs, |
| format, codecInst, startPointMs, stopPointMs) == -1) |
| { |
| inputStream->CloseFile(); |
| delete inputStream; |
| return -1; |
| } |
| |
| CriticalSectionScoped lock(_crit); |
| _openFile = true; |
| strncpy(_fileName, fileName, sizeof(_fileName)); |
| _fileName[sizeof(_fileName) - 1] = '\0'; |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::StartPlayingAudioStream( |
| InStream& stream, |
| const uint32_t notificationTimeMs, |
| const FileFormats format, |
| const CodecInst* codecInst, |
| const uint32_t startPointMs, |
| const uint32_t stopPointMs) |
| { |
| return StartPlayingStream(stream, false, notificationTimeMs, format, |
| codecInst, startPointMs, stopPointMs); |
| } |
| |
| int32_t MediaFileImpl::StartPlayingStream( |
| InStream& stream, |
| bool loop, |
| const uint32_t notificationTimeMs, |
| const FileFormats format, |
| const CodecInst* codecInst, |
| const uint32_t startPointMs, |
| const uint32_t stopPointMs) |
| { |
| if(!ValidFileFormat(format,codecInst)) |
| { |
| return -1; |
| } |
| |
| if(!ValidFilePositions(startPointMs,stopPointMs)) |
| { |
| return -1; |
| } |
| |
| CriticalSectionScoped lock(_crit); |
| if(_playingActive || _recordingActive) |
| { |
| WEBRTC_TRACE( |
| kTraceError, |
| kTraceFile, |
| _id, |
| "StartPlaying called, but already playing or recording file %s", |
| (_fileName[0] == '\0') ? "(name not set)" : _fileName); |
| return -1; |
| } |
| |
| if(_ptrFileUtilityObj != NULL) |
| { |
| WEBRTC_TRACE(kTraceError, |
| kTraceFile, |
| _id, |
| "StartPlaying called, but FileUtilityObj already exists!"); |
| StopPlaying(); |
| return -1; |
| } |
| |
| _ptrFileUtilityObj = new ModuleFileUtility(_id); |
| if(_ptrFileUtilityObj == NULL) |
| { |
| WEBRTC_TRACE(kTraceMemory, kTraceFile, _id, |
| "Failed to create FileUtilityObj!"); |
| return -1; |
| } |
| |
| switch(format) |
| { |
| case kFileFormatWavFile: |
| { |
| if(_ptrFileUtilityObj->InitWavReading(stream, startPointMs, |
| stopPointMs) == -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Not a valid WAV file!"); |
| StopPlaying(); |
| return -1; |
| } |
| _fileFormat = kFileFormatWavFile; |
| break; |
| } |
| case kFileFormatCompressedFile: |
| { |
| if(_ptrFileUtilityObj->InitCompressedReading(stream, startPointMs, |
| stopPointMs) == -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Not a valid Compressed file!"); |
| StopPlaying(); |
| return -1; |
| } |
| _fileFormat = kFileFormatCompressedFile; |
| break; |
| } |
| case kFileFormatPcm8kHzFile: |
| case kFileFormatPcm16kHzFile: |
| case kFileFormatPcm32kHzFile: |
| { |
| // ValidFileFormat() called in the beginneing of this function |
| // prevents codecInst from being NULL here. |
| assert(codecInst != NULL); |
| if(!ValidFrequency(codecInst->plfreq) || |
| _ptrFileUtilityObj->InitPCMReading(stream, startPointMs, |
| stopPointMs, |
| codecInst->plfreq) == -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Not a valid raw 8 or 16 KHz PCM file!"); |
| StopPlaying(); |
| return -1; |
| } |
| |
| _fileFormat = format; |
| break; |
| } |
| case kFileFormatPreencodedFile: |
| { |
| // ValidFileFormat() called in the beginneing of this function |
| // prevents codecInst from being NULL here. |
| assert(codecInst != NULL); |
| if(_ptrFileUtilityObj->InitPreEncodedReading(stream, *codecInst) == |
| -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Not a valid PreEncoded file!"); |
| StopPlaying(); |
| return -1; |
| } |
| |
| _fileFormat = kFileFormatPreencodedFile; |
| break; |
| } |
| default: |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Invalid file format: %d", format); |
| assert(false); |
| break; |
| } |
| } |
| if(_ptrFileUtilityObj->codec_info(codec_info_) == -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Failed to retrieve codec info!"); |
| StopPlaying(); |
| return -1; |
| } |
| |
| _isStereo = (codec_info_.channels == 2); |
| if(_isStereo && (_fileFormat != kFileFormatWavFile)) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Stereo is only allowed for WAV files"); |
| StopPlaying(); |
| return -1; |
| } |
| _playingActive = true; |
| _playoutPositionMs = _ptrFileUtilityObj->PlayoutPositionMs(); |
| _ptrInStream = &stream; |
| _notificationMs = notificationTimeMs; |
| |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::StopPlaying() |
| { |
| |
| CriticalSectionScoped lock(_crit); |
| _isStereo = false; |
| if(_ptrFileUtilityObj) |
| { |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| } |
| if(_ptrInStream) |
| { |
| // If MediaFileImpl opened the InStream it must be reclaimed here. |
| if(_openFile) |
| { |
| delete _ptrInStream; |
| _openFile = false; |
| } |
| _ptrInStream = NULL; |
| } |
| |
| codec_info_.pltype = 0; |
| codec_info_.plname[0] = '\0'; |
| |
| if(!_playingActive) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "playing is not active!"); |
| return -1; |
| } |
| |
| _playingActive = false; |
| return 0; |
| } |
| |
| bool MediaFileImpl::IsPlaying() |
| { |
| WEBRTC_TRACE(kTraceStream, kTraceFile, _id, "MediaFileImpl::IsPlaying()"); |
| CriticalSectionScoped lock(_crit); |
| return _playingActive; |
| } |
| |
| int32_t MediaFileImpl::IncomingAudioData( |
| const int8_t* buffer, |
| const size_t bufferLengthInBytes) |
| { |
| WEBRTC_TRACE(kTraceStream, kTraceFile, _id, |
| "MediaFile::IncomingData(buffer= 0x%x, bufLen= %" PRIuS, |
| buffer, bufferLengthInBytes); |
| |
| if(buffer == NULL || bufferLengthInBytes == 0) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Buffer pointer or length is NULL!"); |
| return -1; |
| } |
| |
| bool recordingEnded = false; |
| uint32_t callbackNotifyMs = 0; |
| { |
| CriticalSectionScoped lock(_crit); |
| |
| if(!_recordingActive) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Not currently recording!"); |
| return -1; |
| } |
| if(_ptrOutStream == NULL) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Recording is active, but output stream is NULL!"); |
| assert(false); |
| return -1; |
| } |
| |
| int32_t bytesWritten = 0; |
| uint32_t samplesWritten = codec_info_.pacsize; |
| if(_ptrFileUtilityObj) |
| { |
| switch(_fileFormat) |
| { |
| case kFileFormatPcm8kHzFile: |
| case kFileFormatPcm16kHzFile: |
| case kFileFormatPcm32kHzFile: |
| bytesWritten = _ptrFileUtilityObj->WritePCMData( |
| *_ptrOutStream, |
| buffer, |
| bufferLengthInBytes); |
| |
| // Sample size is 2 bytes. |
| if(bytesWritten > 0) |
| { |
| samplesWritten = bytesWritten/sizeof(int16_t); |
| } |
| break; |
| case kFileFormatCompressedFile: |
| bytesWritten = _ptrFileUtilityObj->WriteCompressedData( |
| *_ptrOutStream, buffer, bufferLengthInBytes); |
| break; |
| case kFileFormatWavFile: |
| bytesWritten = _ptrFileUtilityObj->WriteWavData( |
| *_ptrOutStream, |
| buffer, |
| bufferLengthInBytes); |
| if(bytesWritten > 0 && STR_NCASE_CMP(codec_info_.plname, |
| "L16", 4) == 0) |
| { |
| // Sample size is 2 bytes. |
| samplesWritten = bytesWritten/sizeof(int16_t); |
| } |
| break; |
| case kFileFormatPreencodedFile: |
| bytesWritten = _ptrFileUtilityObj->WritePreEncodedData( |
| *_ptrOutStream, buffer, bufferLengthInBytes); |
| break; |
| default: |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Invalid file format: %d", _fileFormat); |
| assert(false); |
| break; |
| } |
| } else { |
| // TODO (hellner): quick look at the code makes me think that this |
| // code is never executed. Remove? |
| if(_ptrOutStream) |
| { |
| if(_ptrOutStream->Write(buffer, bufferLengthInBytes)) |
| { |
| bytesWritten = static_cast<int32_t>(bufferLengthInBytes); |
| } |
| } |
| } |
| |
| _recordDurationMs += samplesWritten / (codec_info_.plfreq / 1000); |
| |
| // Check if it's time for RecordNotification(..). |
| if(_notificationMs) |
| { |
| if(_recordDurationMs >= _notificationMs) |
| { |
| _notificationMs = 0; |
| callbackNotifyMs = _recordDurationMs; |
| } |
| } |
| if(bytesWritten < (int32_t)bufferLengthInBytes) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Failed to write all requested bytes!"); |
| StopRecording(); |
| recordingEnded = true; |
| } |
| } |
| |
| // Only _callbackCrit may and should be taken when making callbacks. |
| CriticalSectionScoped lock(_callbackCrit); |
| if(_ptrCallback) |
| { |
| if(callbackNotifyMs) |
| { |
| _ptrCallback->RecordNotification(_id, callbackNotifyMs); |
| } |
| if(recordingEnded) |
| { |
| _ptrCallback->RecordFileEnded(_id); |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::StartRecordingAudioFile( |
| const char* fileName, |
| const FileFormats format, |
| const CodecInst& codecInst, |
| const uint32_t notificationTimeMs, |
| const uint32_t maxSizeBytes) |
| { |
| if(!ValidFileName(fileName)) |
| { |
| return -1; |
| } |
| if(!ValidFileFormat(format,&codecInst)) |
| { |
| return -1; |
| } |
| |
| FileWrapper* outputStream = FileWrapper::Create(); |
| if(outputStream == NULL) |
| { |
| WEBRTC_TRACE(kTraceMemory, kTraceFile, _id, |
| "Failed to allocate memory for output stream"); |
| return -1; |
| } |
| |
| if (!outputStream->OpenFile(fileName, false)) { |
| delete outputStream; |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Could not open output file '%s' for writing!", fileName); |
| return -1; |
| } |
| |
| if(maxSizeBytes) |
| { |
| outputStream->SetMaxFileSize(maxSizeBytes); |
| } |
| |
| if(StartRecordingAudioStream(*outputStream, format, codecInst, |
| notificationTimeMs) == -1) |
| { |
| outputStream->CloseFile(); |
| delete outputStream; |
| return -1; |
| } |
| |
| CriticalSectionScoped lock(_crit); |
| _openFile = true; |
| strncpy(_fileName, fileName, sizeof(_fileName)); |
| _fileName[sizeof(_fileName) - 1] = '\0'; |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::StartRecordingAudioStream( |
| OutStream& stream, |
| const FileFormats format, |
| const CodecInst& codecInst, |
| const uint32_t notificationTimeMs) |
| { |
| // Check codec info |
| if(!ValidFileFormat(format,&codecInst)) |
| { |
| return -1; |
| } |
| |
| CriticalSectionScoped lock(_crit); |
| if(_recordingActive || _playingActive) |
| { |
| WEBRTC_TRACE( |
| kTraceError, |
| kTraceFile, |
| _id, |
| "StartRecording called, but already recording or playing file %s!", |
| _fileName); |
| return -1; |
| } |
| |
| if(_ptrFileUtilityObj != NULL) |
| { |
| WEBRTC_TRACE( |
| kTraceError, |
| kTraceFile, |
| _id, |
| "StartRecording called, but fileUtilityObj already exists!"); |
| StopRecording(); |
| return -1; |
| } |
| |
| _ptrFileUtilityObj = new ModuleFileUtility(_id); |
| if(_ptrFileUtilityObj == NULL) |
| { |
| WEBRTC_TRACE(kTraceMemory, kTraceFile, _id, |
| "Cannot allocate fileUtilityObj!"); |
| return -1; |
| } |
| |
| CodecInst tmpAudioCodec; |
| memcpy(&tmpAudioCodec, &codecInst, sizeof(CodecInst)); |
| switch(format) |
| { |
| case kFileFormatWavFile: |
| { |
| if(_ptrFileUtilityObj->InitWavWriting(stream, codecInst) == -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Failed to initialize WAV file!"); |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| return -1; |
| } |
| _fileFormat = kFileFormatWavFile; |
| break; |
| } |
| case kFileFormatCompressedFile: |
| { |
| // Write compression codec name at beginning of file |
| if(_ptrFileUtilityObj->InitCompressedWriting(stream, codecInst) == |
| -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Failed to initialize Compressed file!"); |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| return -1; |
| } |
| _fileFormat = kFileFormatCompressedFile; |
| break; |
| } |
| case kFileFormatPcm8kHzFile: |
| case kFileFormatPcm16kHzFile: |
| { |
| if(!ValidFrequency(codecInst.plfreq) || |
| _ptrFileUtilityObj->InitPCMWriting(stream, codecInst.plfreq) == |
| -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Failed to initialize 8 or 16KHz PCM file!"); |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| return -1; |
| } |
| _fileFormat = format; |
| break; |
| } |
| case kFileFormatPreencodedFile: |
| { |
| if(_ptrFileUtilityObj->InitPreEncodedWriting(stream, codecInst) == |
| -1) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Failed to initialize Pre-Encoded file!"); |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| return -1; |
| } |
| |
| _fileFormat = kFileFormatPreencodedFile; |
| break; |
| } |
| default: |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Invalid file format %d specified!", format); |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| return -1; |
| } |
| } |
| _isStereo = (tmpAudioCodec.channels == 2); |
| if(_isStereo) |
| { |
| if(_fileFormat != kFileFormatWavFile) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "Stereo is only allowed for WAV files"); |
| StopRecording(); |
| return -1; |
| } |
| if((STR_NCASE_CMP(tmpAudioCodec.plname, "L16", 4) != 0) && |
| (STR_NCASE_CMP(tmpAudioCodec.plname, "PCMU", 5) != 0) && |
| (STR_NCASE_CMP(tmpAudioCodec.plname, "PCMA", 5) != 0)) |
| { |
| WEBRTC_TRACE( |
| kTraceWarning, |
| kTraceFile, |
| _id, |
| "Stereo is only allowed for codec PCMU, PCMA and L16 "); |
| StopRecording(); |
| return -1; |
| } |
| } |
| memcpy(&codec_info_, &tmpAudioCodec, sizeof(CodecInst)); |
| _recordingActive = true; |
| _ptrOutStream = &stream; |
| _notificationMs = notificationTimeMs; |
| _recordDurationMs = 0; |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::StopRecording() |
| { |
| |
| CriticalSectionScoped lock(_crit); |
| if(!_recordingActive) |
| { |
| WEBRTC_TRACE(kTraceWarning, kTraceFile, _id, |
| "recording is not active!"); |
| return -1; |
| } |
| |
| _isStereo = false; |
| |
| if(_ptrFileUtilityObj != NULL) |
| { |
| // Both AVI and WAV header has to be updated before closing the stream |
| // because they contain size information. |
| if((_fileFormat == kFileFormatWavFile) && |
| (_ptrOutStream != NULL)) |
| { |
| _ptrFileUtilityObj->UpdateWavHeader(*_ptrOutStream); |
| } |
| delete _ptrFileUtilityObj; |
| _ptrFileUtilityObj = NULL; |
| } |
| |
| if(_ptrOutStream != NULL) |
| { |
| // If MediaFileImpl opened the OutStream it must be reclaimed here. |
| if(_openFile) |
| { |
| delete _ptrOutStream; |
| _openFile = false; |
| } |
| _ptrOutStream = NULL; |
| } |
| |
| _recordingActive = false; |
| codec_info_.pltype = 0; |
| codec_info_.plname[0] = '\0'; |
| |
| return 0; |
| } |
| |
| bool MediaFileImpl::IsRecording() |
| { |
| WEBRTC_TRACE(kTraceStream, kTraceFile, _id, "MediaFileImpl::IsRecording()"); |
| CriticalSectionScoped lock(_crit); |
| return _recordingActive; |
| } |
| |
| int32_t MediaFileImpl::RecordDurationMs(uint32_t& durationMs) |
| { |
| |
| CriticalSectionScoped lock(_crit); |
| if(!_recordingActive) |
| { |
| durationMs = 0; |
| return -1; |
| } |
| durationMs = _recordDurationMs; |
| return 0; |
| } |
| |
| bool MediaFileImpl::IsStereo() |
| { |
| WEBRTC_TRACE(kTraceStream, kTraceFile, _id, "MediaFileImpl::IsStereo()"); |
| CriticalSectionScoped lock(_crit); |
| return _isStereo; |
| } |
| |
| int32_t MediaFileImpl::SetModuleFileCallback(FileCallback* callback) |
| { |
| |
| CriticalSectionScoped lock(_callbackCrit); |
| |
| _ptrCallback = callback; |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::FileDurationMs(const char* fileName, |
| uint32_t& durationMs, |
| const FileFormats format, |
| const uint32_t freqInHz) |
| { |
| |
| if(!ValidFileName(fileName)) |
| { |
| return -1; |
| } |
| if(!ValidFrequency(freqInHz)) |
| { |
| return -1; |
| } |
| |
| ModuleFileUtility* utilityObj = new ModuleFileUtility(_id); |
| if(utilityObj == NULL) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "failed to allocate utility object!"); |
| return -1; |
| } |
| |
| const int32_t duration = utilityObj->FileDurationMs(fileName, format, |
| freqInHz); |
| delete utilityObj; |
| if(duration == -1) |
| { |
| durationMs = 0; |
| return -1; |
| } |
| |
| durationMs = duration; |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::PlayoutPositionMs(uint32_t& positionMs) const |
| { |
| CriticalSectionScoped lock(_crit); |
| if(!_playingActive) |
| { |
| positionMs = 0; |
| return -1; |
| } |
| positionMs = _playoutPositionMs; |
| return 0; |
| } |
| |
| int32_t MediaFileImpl::codec_info(CodecInst& codecInst) const |
| { |
| CriticalSectionScoped lock(_crit); |
| if(!_playingActive && !_recordingActive) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "Neither playout nor recording has been initialized!"); |
| return -1; |
| } |
| if (codec_info_.pltype == 0 && codec_info_.plname[0] == '\0') |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, _id, |
| "The CodecInst for %s is unknown!", |
| _playingActive ? "Playback" : "Recording"); |
| return -1; |
| } |
| memcpy(&codecInst,&codec_info_,sizeof(CodecInst)); |
| return 0; |
| } |
| |
| bool MediaFileImpl::ValidFileFormat(const FileFormats format, |
| const CodecInst* codecInst) |
| { |
| if(codecInst == NULL) |
| { |
| if(format == kFileFormatPreencodedFile || |
| format == kFileFormatPcm8kHzFile || |
| format == kFileFormatPcm16kHzFile || |
| format == kFileFormatPcm32kHzFile) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, -1, |
| "Codec info required for file format specified!"); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool MediaFileImpl::ValidFileName(const char* fileName) |
| { |
| if((fileName == NULL) ||(fileName[0] == '\0')) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, -1, "FileName not specified!"); |
| return false; |
| } |
| return true; |
| } |
| |
| |
| bool MediaFileImpl::ValidFilePositions(const uint32_t startPointMs, |
| const uint32_t stopPointMs) |
| { |
| if(startPointMs == 0 && stopPointMs == 0) // Default values |
| { |
| return true; |
| } |
| if(stopPointMs &&(startPointMs >= stopPointMs)) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, -1, |
| "startPointMs must be less than stopPointMs!"); |
| return false; |
| } |
| if(stopPointMs &&((stopPointMs - startPointMs) < 20)) |
| { |
| WEBRTC_TRACE(kTraceError, kTraceFile, -1, |
| "minimum play duration for files is 20 ms!"); |
| return false; |
| } |
| return true; |
| } |
| |
| bool MediaFileImpl::ValidFrequency(const uint32_t frequency) |
| { |
| if((frequency == 8000) || (frequency == 16000)|| (frequency == 32000)) |
| { |
| return true; |
| } |
| WEBRTC_TRACE(kTraceError, kTraceFile, -1, |
| "Frequency should be 8000, 16000 or 32000 (Hz)"); |
| return false; |
| } |
| } // namespace webrtc |
