diff options
Diffstat (limited to 'libs/vamp-plugins/TruePeak.h')
| -rw-r--r-- | libs/vamp-plugins/TruePeak.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/libs/vamp-plugins/TruePeak.h b/libs/vamp-plugins/TruePeak.h new file mode 100644 index 0000000000..792788ef6b --- /dev/null +++ b/libs/vamp-plugins/TruePeak.h @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2013-2016 Robin Gareus <robin@gareus.org> + * Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org> + * Copyright (C) 2006 Chris Cannam + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _TruePeak_PLUGIN_H_ +#define _TruePeak_PLUGIN_H_ + +#include <vamp-sdk/Plugin.h> + +#include <pthread.h> + +namespace TruePeakMeter { + +class Resampler_mutex +{ +private: + + friend class Resampler_table; + + Resampler_mutex (void) { pthread_mutex_init (&_mutex, 0); } + ~Resampler_mutex (void) { pthread_mutex_destroy (&_mutex); } + void lock (void) { pthread_mutex_lock (&_mutex); } + void unlock (void) { pthread_mutex_unlock (&_mutex); } + + pthread_mutex_t _mutex; +}; + +class Resampler_table +{ +private: + + Resampler_table (double fr, unsigned int hl, unsigned int np); + ~Resampler_table (void); + + friend class Resampler; + friend class VResampler; + + Resampler_table *_next; + unsigned int _refc; + float *_ctab; + double _fr; + unsigned int _hl; + unsigned int _np; + + static Resampler_table *create (double fr, unsigned int hl, unsigned int np); + static void destroy (Resampler_table *T); + + static Resampler_table *_list; + static Resampler_mutex _mutex; +}; + +class Resampler +{ +public: + + Resampler (void); + ~Resampler (void); + + int setup (unsigned int fs_inp, + unsigned int fs_out, + unsigned int nchan, + unsigned int hlen); + + int setup (unsigned int fs_inp, + unsigned int fs_out, + unsigned int nchan, + unsigned int hlen, + double frel); + + void clear (void); + int reset (void); + int nchan (void) const { return _nchan; } + int filtlen (void) const { return inpsize (); } // Deprecated + int inpsize (void) const; + double inpdist (void) const; + int process (void); + + unsigned int inp_count; + unsigned int out_count; + float const *inp_data; + float *out_data; + void *inp_list; + void *out_list; + +private: + + Resampler_table *_table; + unsigned int _nchan; + unsigned int _inmax; + unsigned int _index; + unsigned int _nread; + unsigned int _nzero; + unsigned int _phase; + unsigned int _pstep; + float *_buff; + void *_dummy [8]; +}; + +class TruePeakdsp +{ +public: + + TruePeakdsp (void); + ~TruePeakdsp (void); + + void process (float const *, int n); + float read (void); + void read (float &m, float &p); + void reset (void); + + void init (float fsamp); + +private: + + float _m; + float _p; + bool _res; + float *_buf; + Resampler _src; +}; + +}; // namespace TruePeakMeter + +class VampTruePeak : public Vamp::Plugin +{ +public: + VampTruePeak(float inputSampleRate); + virtual ~VampTruePeak(); + + size_t getMinChannelCount() const { return 1; } + size_t getMaxChannelCount() const { return 1; } + size_t getPreferredBlockSize () const { return 1024; } + bool initialise(size_t channels, size_t stepSize, size_t blockSize); + void reset(); + + InputDomain getInputDomain() const { return TimeDomain; } + + std::string getIdentifier() const; + std::string getName() const; + std::string getDescription() const; + std::string getMaker() const; + int getPluginVersion() const; + std::string getCopyright() const; + + OutputList getOutputDescriptors() const; + + FeatureSet process(const float *const *inputBuffers, + Vamp::RealTime timestamp); + + FeatureSet getRemainingFeatures(); + +protected: + size_t m_blockSize; + +private: + TruePeakMeter::TruePeakdsp _meter; +}; + +#endif |