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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 VamPipe
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5
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6 Centre for Digital Music, Queen Mary, University of London.
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7 Copyright 2015-2016 QMUL.
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8
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9 Permission is hereby granted, free of charge, to any person
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10 obtaining a copy of this software and associated documentation
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11 files (the "Software"), to deal in the Software without
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12 restriction, including without limitation the rights to use, copy,
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13 modify, merge, publish, distribute, sublicense, and/or sell copies
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14 of the Software, and to permit persons to whom the Software is
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15 furnished to do so, subject to the following conditions:
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16
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17 The above copyright notice and this permission notice shall be
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18 included in all copies or substantial portions of the Software.
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19
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20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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23 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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24 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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25 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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27
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28 Except as contained in this notice, the names of the Centre for
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29 Digital Music; Queen Mary, University of London; and Chris Cannam
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30 shall not be used in advertising or otherwise to promote the sale,
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31 use or other dealings in this Software without prior written
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32 authorization.
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33 */
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34
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35 #ifndef VAMPIPE_ADAPTER_H
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36 #define VAMPIPE_ADAPTER_H
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37
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38 #include <vamp-hostsdk/PluginStaticData.h>
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39 #include <vamp-hostsdk/PluginConfiguration.h>
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40 #include <vamp-hostsdk/RequestResponse.h>
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41
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42 #include <vamp-hostsdk/PluginInputDomainAdapter.h>
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43 #include <vamp-hostsdk/PluginBufferingAdapter.h>
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44 #include <vamp-hostsdk/PluginChannelAdapter.h>
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45
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46 namespace vampipe {
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47
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48 class VamPipeAdapterBase
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49 {
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50 public:
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51 virtual Vamp::HostExt::PluginStaticData getStaticData() const = 0;
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52 virtual Vamp::HostExt::LoadResponse loadPlugin(Vamp::HostExt::LoadRequest r) const = 0;
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53 };
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54
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55 template <typename P>
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56 class VamPipeAdapter : public VamPipeAdapterBase
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57 {
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58 const int adaptInputDomain = 0x01;
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59 const int adaptChannelCount = 0x02;
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60 const int adaptBufferSize = 0x04;
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61
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62 public:
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63 VamPipeAdapter(std::string libname) :
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64 m_soname(libname) { }
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65
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66 virtual Vamp::HostExt::PluginStaticData getStaticData() const {
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67 P p(44100.f);
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68 return Vamp::HostExt::PluginStaticData::fromPlugin
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69 (m_soname + ":" + p.getIdentifier(),
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70 {}, //!!! todo: category - tricky one that
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71 &p);
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72 }
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73
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74 virtual Vamp::HostExt::LoadResponse loadPlugin(Vamp::HostExt::
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75 LoadRequest r) const {
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76
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77 // We assume the caller has guaranteed that the request is for
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78 // the correct plugin (so we don't have to check the plugin
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79 // key field here)
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80
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81 Vamp::Plugin *p = new P(r.inputSampleRate);
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82
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83 if (r.adapterFlags & adaptInputDomain) {
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84 if (p->getInputDomain() == Vamp::Plugin::FrequencyDomain) {
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85 p = new Vamp::HostExt::PluginInputDomainAdapter(p);
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86 }
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87 }
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88
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89 if (r.adapterFlags & adaptBufferSize) {
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90 p = new Vamp::HostExt::PluginBufferingAdapter(p);
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91 }
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92
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93 if (r.adapterFlags & adaptChannelCount) {
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94 p = new Vamp::HostExt::PluginChannelAdapter(p);
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95 }
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96
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97 Vamp::HostExt::LoadResponse response;
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98 response.plugin = p;
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99
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100 response.staticData = Vamp::HostExt::PluginStaticData::fromPlugin
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101 (m_soname + ":" + p->getIdentifier(),
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102 {}, //!!! todo: category - tricky one that
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103 p);
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104
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105 int defaultChannels = 0;
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106 if (p->getMinChannelCount() == p->getMaxChannelCount()) {
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107 defaultChannels = p->getMinChannelCount();
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108 }
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109
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110 response.defaultConfiguration = Vamp::HostExt::PluginConfiguration::fromPlugin
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111 (p,
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112 defaultChannels,
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113 p->getPreferredStepSize(),
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114 p->getPreferredBlockSize());
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115
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116 return response;
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117 }
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118
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119 private:
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120 std::string m_soname;
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121 };
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122
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123 }
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124
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125 #endif
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126
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