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annotate plugin/plugins/SamplePlayer.h @ 1196:c7b9c902642f spectrogram-minor-refactor

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Fix threshold in spectrogram -- it wasn't working in the last release. There is a new protocol for this. Formerly the threshold parameter had a range from -50dB to 0 with the default at -50, and -50 treated internally as "no threshold". However, there was a hardcoded, hidden internal threshold for spectrogram colour mapping at -80dB with anything below this being rounded to zero. Now the threshold parameter has range -81 to -1 with the default at -80, -81 is treated internally as "no threshold", and there is no hidden internal threshold. So the default behaviour is the same as before, an effective -80dB threshold, but it is now possible to change this in both directions. Sessions reloaded from prior versions may look slightly different because, if the session says there should be no threshold, there will now actually be no threshold instead of having the hidden internal one. Still need to do something in the UI to make it apparent that the -81dB setting removes the threshold entirely. This is at least no worse than the previous, also obscured, magic -50dB setting.
author Chris Cannam
date Mon, 01 Aug 2016 16:21:01 +0100
parents 9a6b50d3cc50
children 48e9f538e6e9
rev   line source
Chris@49 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@52 4 Sonic Visualiser
Chris@52 5 An audio file viewer and annotation editor.
Chris@52 6 Centre for Digital Music, Queen Mary, University of London.
Chris@52 7 This file copyright 2006 Chris Cannam.
Chris@0 8
Chris@52 9 This program is free software; you can redistribute it and/or
Chris@52 10 modify it under the terms of the GNU General Public License as
Chris@52 11 published by the Free Software Foundation; either version 2 of the
Chris@52 12 License, or (at your option) any later version. See the file
Chris@52 13 COPYING included with this distribution for more information.
Chris@0 14 */
Chris@0 15
Chris@0 16 #ifndef _SAMPLE_PLAYER_H_
Chris@0 17 #define _SAMPLE_PLAYER_H_
Chris@0 18
Chris@0 19 #define DSSI_API_LEVEL 2
Chris@0 20
Chris@646 21 #include "../api/ladspa.h"
Chris@646 22 #include "../api/dssi.h"
Chris@646 23
Chris@0 24 #include <seq_event.h>
Chris@0 25
Chris@0 26 #include <QMutex>
Chris@0 27 #include <QString>
Chris@0 28 #include <vector>
Chris@0 29
Chris@0 30 class SamplePlayer
Chris@0 31 {
Chris@0 32 public:
Chris@0 33 static const DSSI_Descriptor *getDescriptor(unsigned long index);
Chris@0 34
Chris@0 35 private:
Chris@0 36 SamplePlayer(int sampleRate);
Chris@0 37 ~SamplePlayer();
Chris@0 38
Chris@0 39 enum {
Chris@0 40 OutputPort = 0,
Chris@0 41 RetunePort = 1,
Chris@0 42 BasePitchPort = 2,
Chris@143 43 ConcertAPort = 3,
Chris@143 44 SustainPort = 4,
Chris@143 45 ReleasePort = 5,
Chris@143 46 PortCount = 6
Chris@0 47 };
Chris@0 48
Chris@0 49 enum {
Chris@0 50 Polyphony = 128
Chris@0 51 };
Chris@0 52
Chris@0 53 static const char *const portNames[PortCount];
Chris@0 54 static const LADSPA_PortDescriptor ports[PortCount];
Chris@0 55 static const LADSPA_PortRangeHint hints[PortCount];
Chris@0 56 static const LADSPA_Properties properties;
Chris@0 57 static const LADSPA_Descriptor ladspaDescriptor;
Chris@0 58 static const DSSI_Descriptor dssiDescriptor;
Chris@0 59 static const DSSI_Host_Descriptor *hostDescriptor;
Chris@0 60
Chris@0 61 static LADSPA_Handle instantiate(const LADSPA_Descriptor *, unsigned long);
Chris@0 62 static void connectPort(LADSPA_Handle, unsigned long, LADSPA_Data *);
Chris@0 63 static void activate(LADSPA_Handle);
Chris@0 64 static void run(LADSPA_Handle, unsigned long);
Chris@0 65 static void deactivate(LADSPA_Handle);
Chris@0 66 static void cleanup(LADSPA_Handle);
Chris@75 67 static char *configure(LADSPA_Handle, const char *, const char *);
Chris@0 68 static const DSSI_Program_Descriptor *getProgram(LADSPA_Handle, unsigned long);
Chris@0 69 static void selectProgram(LADSPA_Handle, unsigned long, unsigned long);
Chris@0 70 static int getMidiController(LADSPA_Handle, unsigned long);
Chris@0 71 static void runSynth(LADSPA_Handle, unsigned long,
Chris@0 72 snd_seq_event_t *, unsigned long);
Chris@0 73 static void receiveHostDescriptor(const DSSI_Host_Descriptor *descriptor);
Chris@0 74 static void workThreadCallback(LADSPA_Handle);
Chris@0 75
Chris@0 76 void searchSamples();
Chris@0 77 void loadSampleData(QString path);
Chris@0 78 void runImpl(unsigned long, snd_seq_event_t *, unsigned long);
Chris@0 79 void addSample(int, unsigned long, unsigned long);
Chris@0 80
Chris@0 81 float *m_output;
Chris@0 82 float *m_retune;
Chris@0 83 float *m_basePitch;
Chris@143 84 float *m_concertA;
Chris@0 85 float *m_sustain;
Chris@0 86 float *m_release;
Chris@0 87
Chris@0 88 float *m_sampleData;
Chris@0 89 size_t m_sampleCount;
Chris@0 90 int m_sampleRate;
Chris@0 91
Chris@0 92 long m_ons[Polyphony];
Chris@0 93 long m_offs[Polyphony];
Chris@0 94 int m_velocities[Polyphony];
Chris@0 95 long m_sampleNo;
Chris@0 96
Chris@83 97 QString m_sampleDir;
Chris@0 98 QString m_program;
Chris@0 99 std::vector<std::pair<QString, QString> > m_samples; // program name, path
Chris@0 100 bool m_sampleSearchComplete;
Chris@0 101 int m_pendingProgramChange;
Chris@0 102
Chris@0 103 QMutex m_mutex;
Chris@0 104 };
Chris@0 105
Chris@0 106
Chris@0 107 #endif