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src/TactileStimulation/ovpCBoxAlgorithmTactileStimulation.cpp
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| ///------------------------------------------------------------------------------------------------- | |||||
| /// | |||||
| /// \file ovpCBoxAlgorithmTactileStimulator.cpp | |||||
| /// \brief Functions of the Box Tactile Stimulator. | |||||
| /// \author Tobias Baumann (TH-Nürnberg). | |||||
| /// \version 1.0. | |||||
| /// \date Mon Feb 21 14:59:56 2022. | |||||
| /// \copyright <a href="https://choosealicense.com/licenses/agpl-3.0/">GNU Affero General Public License v3.0</a>. | |||||
| /// | |||||
| ///------------------------------------------------------------------------------------------------- | |||||
| //includes | |||||
| #include "ovpCBoxAlgorithmTactileStimulation.h" | |||||
| using namespace OpenViBE; | |||||
| using namespace /*OpenViBE::*/Kernel; | |||||
| using namespace /*OpenViBE::*/Plugins; | |||||
| using namespace /*OpenViBE::Plugins::*/Tactilebci; | |||||
| bool CBoxAlgorithmTactileStimulation::initialize() | |||||
| { | |||||
| m_input0Decoder.initialize(*this, 0); | |||||
| m_output0Encoder.initialize(*this, 0); | |||||
| // If you need to retrieve setting values, use the FSettingValueAutoCast function. | |||||
| // For example : | |||||
| // - CString setting at index 0 in the setting list : | |||||
| // CString sSettingValue = FSettingValueAutoCast(*this->getBoxAlgorithmContext(), 0); | |||||
| // - unsigned int64 setting at index 1 in the setting list : | |||||
| // uint64_t uiSettingValue = FSettingValueAutoCast(*this->getBoxAlgorithmContext(), 1); | |||||
| // - double setting at index 2 in the setting list : | |||||
| // double doubleSettingValue = FSettingValueAutoCast(*this->getBoxAlgorithmContext(), 2); | |||||
| // ... | |||||
| return true; | |||||
| } | |||||
| /*******************************************************************************/ | |||||
| bool CBoxAlgorithmTactileStimulation::uninitialize() | |||||
| { | |||||
| m_input0Decoder.uninitialize(); | |||||
| m_output0Encoder.uninitialize(); | |||||
| return true; | |||||
| } | |||||
| /*******************************************************************************/ | |||||
| bool CBoxAlgorithmTactileStimulation::process() | |||||
| { | |||||
| // the static box context describes the box inputs, outputs, settings structures | |||||
| const IBox& staticBoxContext=this->getStaticBoxContext(); | |||||
| // the dynamic box context describes the current state of the box inputs and outputs (i.e. the chunks) | |||||
| IBoxIO& boxContext = this->getDynamicBoxContext(); | |||||
| // here is some useful functions: | |||||
| // - To get input/output/setting count: | |||||
| // staticBoxContext.getInputCount(); | |||||
| // staticBoxContext.getOutputCount(); | |||||
| // - To get the number of chunks currently available on a particular input : | |||||
| // boxContext.getInputChunkCount(input_index) | |||||
| // - To send an output chunk : | |||||
| // boxContext.markOutputAsReadyToSend(output_index, chunk_start_time, chunk_end_time); | |||||
| // A typical process iteration may look like this. | |||||
| // This example only iterate over the first input of type Signal, and output a modified Signal. | |||||
| // thus, the box uses 1 decoder (m_signalDecoder) and 1 encoder (m_signalEncoder) | |||||
| /* | |||||
| IBoxIO& boxContext = this->getDynamicBoxContext(); | |||||
| //iterate over all chunk on input 0 | |||||
| for (size_t i = 0; i < boxContext.getInputChunkCount(0); ++i) | |||||
| { | |||||
| // decode the chunk i | |||||
| m_signalDecoder.decode(i); | |||||
| // the decoder may have decoded 3 different parts : the header, a buffer or the end of stream. | |||||
| if(m_signalDecoder.isHeaderReceived()) | |||||
| { | |||||
| // Header received. This happens only once when pressing "play". For example with a StreamedMatrix input, you now know the dimension count, sizes, and labels of the matrix | |||||
| // ... maybe do some process ... | |||||
| // Pass the header to the next boxes, by encoding a header on the output 0: | |||||
| m_signalEncoder.encodeHeader(0); | |||||
| // send the output chunk containing the header. The dates are the same as the input chunk: | |||||
| boxContext.markOutputAsReadyToSend(0, boxContext.getInputChunkStartTime(0, i), boxContext.getInputChunkEndTime(0, i)); | |||||
| } | |||||
| if(m_signalDecoder.isBufferReceived()) | |||||
| { | |||||
| // Buffer received. For example the signal values | |||||
| // Access to the buffer can be done thanks to : | |||||
| CMatrix* matrix = m_signalDecoder.getOutputMatrix(); // the StreamedMatrix of samples. | |||||
| uint64_t frequency = m_signalDecoder.getOutputSamplingRate(); // the sampling rate of the signal | |||||
| // ... do some process on the matrix ... | |||||
| // Encode the output buffer : | |||||
| m_signalEncoder.encodeBuffer(0); | |||||
| // and send it to the next boxes : | |||||
| boxContext.markOutputAsReadyToSend(0, boxContext.getInputChunkStartTime(0, i), boxContext.getInputChunkEndTime(0, i)); | |||||
| } | |||||
| if(m_signalDecoder.isEndReceived()) | |||||
| { | |||||
| // End of stream received. This happens only once when pressing "stop". Just pass it to the next boxes so they receive the message : | |||||
| m_signalEncoder.encodeEnd(0); | |||||
| boxContext.markOutputAsReadyToSend(0, boxContext.getInputChunkStartTime(0, i), boxContext.getInputChunkEndTime(0, i)); | |||||
| } | |||||
| // The current input chunk has been processed, and automaticcaly discarded. | |||||
| // you don't need to call "boxContext.markInputAsDeprecated(0, i);" | |||||
| } | |||||
| */ | |||||
| // check the official developer documentation webpage for more example and information : | |||||
| // Tutorials: | |||||
| // http://openvibe.inria.fr/documentation/#Developer+Documentation | |||||
| // Codec Toolkit page : | |||||
| // http://openvibe.inria.fr/codec-toolkit-references/ | |||||
| // Feel free to ask experienced developers on the forum (http://openvibe.inria.fr/forum) and IRC (#openvibe on irc.freenode.net). | |||||
| return true; | |||||
| } |
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