Mercurial > hg > vamp-plugin-sdk
view vamp-sdk/PluginHostAdapter.cpp @ 142:8e3a5f779d89
* Reindent and remove inaccurate comment about usage
author | cannam |
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date | Fri, 20 Jun 2008 11:31:26 +0000 |
parents | 44e6b94c2696 |
children | 31eda4b11f2b |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Vamp An API for audio analysis and feature extraction plugins. Centre for Digital Music, Queen Mary, University of London. Copyright 2006 Chris Cannam. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the names of the Centre for Digital Music; Queen Mary, University of London; and Chris Cannam shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization. */ #include "PluginHostAdapter.h" #include <cstdlib> namespace Vamp { PluginHostAdapter::PluginHostAdapter(const VampPluginDescriptor *descriptor, float inputSampleRate) : Plugin(inputSampleRate), m_descriptor(descriptor) { // std::cerr << "PluginHostAdapter::PluginHostAdapter (plugin = " << descriptor->name << ")" << std::endl; m_handle = m_descriptor->instantiate(m_descriptor, inputSampleRate); if (!m_handle) { // std::cerr << "WARNING: PluginHostAdapter: Plugin instantiation failed for plugin " << m_descriptor->name << std::endl; } } PluginHostAdapter::~PluginHostAdapter() { // std::cerr << "PluginHostAdapter::~PluginHostAdapter (plugin = " << m_descriptor->name << ")" << std::endl; if (m_handle) m_descriptor->cleanup(m_handle); } std::vector<std::string> PluginHostAdapter::getPluginPath() { std::vector<std::string> path; std::string envPath; char *cpath = getenv("VAMP_PATH"); if (cpath) envPath = cpath; #ifdef _WIN32 #define PATH_SEPARATOR ';' #define DEFAULT_VAMP_PATH "%ProgramFiles%\\Vamp Plugins" #else #define PATH_SEPARATOR ':' #ifdef __APPLE__ #define DEFAULT_VAMP_PATH "$HOME/Library/Audio/Plug-Ins/Vamp:/Library/Audio/Plug-Ins/Vamp" #else #define DEFAULT_VAMP_PATH "$HOME/vamp:$HOME/.vamp:/usr/local/lib/vamp:/usr/lib/vamp" #endif #endif if (envPath == "") { envPath = DEFAULT_VAMP_PATH; char *chome = getenv("HOME"); if (chome) { std::string home(chome); std::string::size_type f; while ((f = envPath.find("$HOME")) != std::string::npos && f < envPath.length()) { envPath.replace(f, 5, home); } } #ifdef _WIN32 char *cpfiles = getenv("ProgramFiles"); if (!cpfiles) cpfiles = "C:\\Program Files"; std::string pfiles(cpfiles); std::string::size_type f; while ((f = envPath.find("%ProgramFiles%")) != std::string::npos && f < envPath.length()) { envPath.replace(f, 14, pfiles); } #endif } std::string::size_type index = 0, newindex = 0; while ((newindex = envPath.find(PATH_SEPARATOR, index)) < envPath.size()) { path.push_back(envPath.substr(index, newindex - index)); index = newindex + 1; } path.push_back(envPath.substr(index)); return path; } bool PluginHostAdapter::initialise(size_t channels, size_t stepSize, size_t blockSize) { if (!m_handle) return false; return m_descriptor->initialise(m_handle, channels, stepSize, blockSize) ? true : false; } void PluginHostAdapter::reset() { if (!m_handle) return; m_descriptor->reset(m_handle); } PluginHostAdapter::InputDomain PluginHostAdapter::getInputDomain() const { if (m_descriptor->inputDomain == vampFrequencyDomain) { return FrequencyDomain; } else { return TimeDomain; } } unsigned int PluginHostAdapter::getVampApiVersion() const { return m_descriptor->vampApiVersion; } std::string PluginHostAdapter::getIdentifier() const { return m_descriptor->identifier; } std::string PluginHostAdapter::getName() const { return m_descriptor->name; } std::string PluginHostAdapter::getDescription() const { return m_descriptor->description; } std::string PluginHostAdapter::getMaker() const { return m_descriptor->maker; } int PluginHostAdapter::getPluginVersion() const { return m_descriptor->pluginVersion; } std::string PluginHostAdapter::getCopyright() const { return m_descriptor->copyright; } PluginHostAdapter::ParameterList PluginHostAdapter::getParameterDescriptors() const { ParameterList list; for (unsigned int i = 0; i < m_descriptor->parameterCount; ++i) { const VampParameterDescriptor *spd = m_descriptor->parameters[i]; ParameterDescriptor pd; pd.identifier = spd->identifier; pd.name = spd->name; pd.description = spd->description; pd.unit = spd->unit; pd.minValue = spd->minValue; pd.maxValue = spd->maxValue; pd.defaultValue = spd->defaultValue; pd.isQuantized = spd->isQuantized; pd.quantizeStep = spd->quantizeStep; if (pd.isQuantized && spd->valueNames) { for (unsigned int j = 0; spd->valueNames[j]; ++j) { pd.valueNames.push_back(spd->valueNames[j]); } } list.push_back(pd); } return list; } float PluginHostAdapter::getParameter(std::string param) const { if (!m_handle) return 0.0; for (unsigned int i = 0; i < m_descriptor->parameterCount; ++i) { if (param == m_descriptor->parameters[i]->identifier) { return m_descriptor->getParameter(m_handle, i); } } return 0.0; } void PluginHostAdapter::setParameter(std::string param, float value) { if (!m_handle) return; for (unsigned int i = 0; i < m_descriptor->parameterCount; ++i) { if (param == m_descriptor->parameters[i]->identifier) { m_descriptor->setParameter(m_handle, i, value); return; } } } PluginHostAdapter::ProgramList PluginHostAdapter::getPrograms() const { ProgramList list; for (unsigned int i = 0; i < m_descriptor->programCount; ++i) { list.push_back(m_descriptor->programs[i]); } return list; } std::string PluginHostAdapter::getCurrentProgram() const { if (!m_handle) return ""; int pn = m_descriptor->getCurrentProgram(m_handle); return m_descriptor->programs[pn]; } void PluginHostAdapter::selectProgram(std::string program) { if (!m_handle) return; for (unsigned int i = 0; i < m_descriptor->programCount; ++i) { if (program == m_descriptor->programs[i]) { m_descriptor->selectProgram(m_handle, i); return; } } } size_t PluginHostAdapter::getPreferredStepSize() const { if (!m_handle) return 0; return m_descriptor->getPreferredStepSize(m_handle); } size_t PluginHostAdapter::getPreferredBlockSize() const { if (!m_handle) return 0; return m_descriptor->getPreferredBlockSize(m_handle); } size_t PluginHostAdapter::getMinChannelCount() const { if (!m_handle) return 0; return m_descriptor->getMinChannelCount(m_handle); } size_t PluginHostAdapter::getMaxChannelCount() const { if (!m_handle) return 0; return m_descriptor->getMaxChannelCount(m_handle); } PluginHostAdapter::OutputList PluginHostAdapter::getOutputDescriptors() const { OutputList list; if (!m_handle) { // std::cerr << "PluginHostAdapter::getOutputDescriptors: no handle " << std::endl; return list; } unsigned int count = m_descriptor->getOutputCount(m_handle); for (unsigned int i = 0; i < count; ++i) { VampOutputDescriptor *sd = m_descriptor->getOutputDescriptor(m_handle, i); OutputDescriptor d; d.identifier = sd->identifier; d.name = sd->name; d.description = sd->description; d.unit = sd->unit; d.hasFixedBinCount = sd->hasFixedBinCount; d.binCount = sd->binCount; if (d.hasFixedBinCount) { for (unsigned int j = 0; j < sd->binCount; ++j) { d.binNames.push_back(sd->binNames[j] ? sd->binNames[j] : ""); } } d.hasKnownExtents = sd->hasKnownExtents; d.minValue = sd->minValue; d.maxValue = sd->maxValue; d.isQuantized = sd->isQuantized; d.quantizeStep = sd->quantizeStep; switch (sd->sampleType) { case vampOneSamplePerStep: d.sampleType = OutputDescriptor::OneSamplePerStep; break; case vampFixedSampleRate: d.sampleType = OutputDescriptor::FixedSampleRate; break; case vampVariableSampleRate: d.sampleType = OutputDescriptor::VariableSampleRate; break; } d.sampleRate = sd->sampleRate; list.push_back(d); m_descriptor->releaseOutputDescriptor(sd); } return list; } PluginHostAdapter::FeatureSet PluginHostAdapter::process(const float *const *inputBuffers, RealTime timestamp) { FeatureSet fs; if (!m_handle) return fs; int sec = timestamp.sec; int nsec = timestamp.nsec; VampFeatureList *features = m_descriptor->process(m_handle, inputBuffers, sec, nsec); convertFeatures(features, fs); m_descriptor->releaseFeatureSet(features); return fs; } PluginHostAdapter::FeatureSet PluginHostAdapter::getRemainingFeatures() { FeatureSet fs; if (!m_handle) return fs; VampFeatureList *features = m_descriptor->getRemainingFeatures(m_handle); convertFeatures(features, fs); m_descriptor->releaseFeatureSet(features); return fs; } void PluginHostAdapter::convertFeatures(VampFeatureList *features, FeatureSet &fs) { if (!features) return; unsigned int outputs = m_descriptor->getOutputCount(m_handle); for (unsigned int i = 0; i < outputs; ++i) { VampFeatureList &list = features[i]; if (list.featureCount > 0) { Feature feature; feature.values.reserve(list.features[0].valueCount); for (unsigned int j = 0; j < list.featureCount; ++j) { feature.hasTimestamp = list.features[j].hasTimestamp; feature.timestamp = RealTime(list.features[j].sec, list.features[j].nsec); for (unsigned int k = 0; k < list.features[j].valueCount; ++k) { feature.values.push_back(list.features[j].values[k]); } if (list.features[j].label) { feature.label = list.features[j].label; } fs[i].push_back(feature); if (list.features[j].valueCount > 0) { feature.values.clear(); } if (list.features[j].label) { feature.label = ""; } } } } } }