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#ifndef ROTOR_NODES_AUDIO_ANALYSIS
#define ROTOR_NODES_AUDIO_ANALYSIS
#include "rotor.h"
#include "vampHost.h"
namespace Rotor {
#define VAMPHOST_Timeline 1
#define VAMPHOST_Timesteps 2
#define VAMPHOST_Valueline 3
#define VAMPHOST_Values 4
class Audio_processor: public Signal_node {
public:
Audio_processor(){};
virtual ~Audio_processor(){};
virtual int process_frame(uint8_t *data,int samples)=0;
virtual bool init(int _channels,int _bits,int _samples,int _rate)=0;
virtual void cleanup()=0;
virtual void print_summary(){};
virtual string get_features(){return "";};
int channels,bits,samples,rate;
};
//actual nodes-------------------------------------------------
class Audio_thumbnailer: public Audio_processor {
public:
Audio_thumbnailer(){
height=128;
width=512; //fit
//trying to reduce valgrind errors
out_sample=0; //sample in whole track
sample=0;
samples=0;
accum=0.0;
};
~Audio_thumbnailer(){};
Audio_thumbnailer* clone(map<string,string> &_settings) { return new Audio_thumbnailer();};
bool init(int _channels,int _bits,int _samples,int _rate);
void cleanup(){};
int process_frame(uint8_t *data,int samples_in_frame);
void print_vector(xmlIO XML);
vector<float> audiodata;
int height,width,samples_per_column;
int out_sample,sample,samples;
int offset;
float scale,accum;
};
class Vamp_node: public Audio_processor {
//base class for vamp plugin hosts
public:
Vamp_node(){
create_attribute("mode","Data output mode","Mode","timeline",{"timeline","timesteps","valueline","values"});
};
bool init(int _channels,int _bits,int _samples,int _rate);
void cleanup();
int process_frame(uint8_t *data,int samples_in_frame);
const float output(const Time_spec &time) {
if (features.size()) {
auto i=features.upper_bound(time.time); //the first element in the container whose key is considered to go after k
if (i!=features.end()){
float uk=i->first;
float v1,v2;
v1=v2=0.0f;
if (i->second.values.size()) v2=i->second.values[0];
i--;
float lk=i->first;
int ln=i->second.number;
if (i->second.values.size()) v1=i->second.values[0];
switch (attributes["mode"]->intVal){
case VAMPHOST_Timeline:
return (((time.time-lk)/(uk-lk))+ln);
case VAMPHOST_Timesteps:
return (float)ln;
case VAMPHOST_Valueline:
return ((((time.time-lk)/(uk-lk))*(v2-v1))+v1);
case VAMPHOST_Values:
return v1;
}
}
}
return 0.0f;
}
string get_features();
void print_summary(){
cerr<<"vamp plugin "<<id<<" of library "<<soname<<" found "<<features.size()<<" features "<<endl;
};
protected:
string soname,id;
int outputNo;
map <string,float> params;
map<float,vampHost::feature> features;
private:
vampHost::Analyser analyser;
};
class Audio_analysis: public Vamp_node {
//vamp node that allows the user to choose a plugin
public:
Audio_analysis(){
//create_attribute("soname","Plugin library to use","Plugin library","vamp-example-plugins");
//create_attribute("id","ID of Plugin to use","Plugin ID","percussiononsets");
//create_attribute("analyser","Analyser Plugin to use","Analyser plugin","barbeattracker",{"barbeattracker","segmenter"});
create_parameter("outputNo","number","Plugin output to use","Output number",0.0f);
//title="Audio analysis";
//description="Analyse audio and output";
UID="b769f54e-2d0b-11e3-87dd-f73fc7b1c636";
};
Audio_analysis(map<string,string> &settings):Audio_analysis() {
base_settings(settings);
soname=find_setting(settings,"soname");
id=find_setting(settings,"id");
outputNo=find_setting(settings,"outputNo",0);
};
~Audio_analysis(){};
Audio_analysis* clone(map<string,string> &_settings) { return new Audio_analysis(_settings);};
private:
};
class Audio_analysis2: public Vamp_node {
//reworked the plugin loader
public:
Audio_analysis2(){
//create_attribute("soname","Plugin library to use","Plugin library","vamp-example-plugins",{"horiz","vert","horizR","vertR"});
//create_attribute("id","ID of Plugin to use","Plugin ID","percussiononsets",{"horiz","vert","horizR","vertR"});
create_attribute("analyser","Analyser Plugin to use","Analyser plugin","barbeattracker",{"adaptivespectrum","barbeattracker","chromagram","dwt","mfcc","onsetdetector","segmenter","similarity","tempotracker","transcription"});
create_parameter("outputNo","number","Plugin output to use","Output number",0.0f);
title="Audio analysis";
description="Analyse audio and output";
UID="b769f54e-2d0b-11e3-87dd-f73fc7b1c636";
plugins.push_back(make_pair("qm-adaptivespectrogram","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-barbeattracker","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-chromagram","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-dwt","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-mfcc","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-onsetdetector","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-segmenter","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-similarity","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-tempotracker","qm-vamp-plugins"));
plugins.push_back(make_pair("qm-transcription","qm-vamp-plugins"));
};
Audio_analysis2(map<string,string> &settings):Audio_analysis2() {
base_settings(settings);
soname=plugins[attributes["analyser"]->intVal-1].second;
id=plugins[attributes["analyser"]->intVal-1].first;
outputNo=find_setting(settings,"outputNo",0);
};
~Audio_analysis2(){};
void init_attribute(const string &attr){
if (attr=="analyser") {
soname=plugins[attributes["analyser"]->intVal-1].second;
id=plugins[attributes["analyser"]->intVal-1].first;
}
if (attr=="outputNo") {
outputNo=parameters["outputNo"]->value;
}
};
Audio_analysis2* clone(map<string,string> &_settings) { return new Audio_analysis2(_settings);};
private:
vector< pair<string,string>> plugins;
};
class Act_segmenter: public Vamp_node {
//vamp node that applies a ruleset to manage a set of acts via a cycler
public:
Act_segmenter(){
create_parameter("outputNo","number","Plugin output to use","Output number",0.0f);
create_parameter("acts","number","Number of acts defined","Acts",1.0f);
title="Act manager";
description="Applies a ruleset to manage acts based on segments";
UID="c55359a2-2d0b-11e3-8a3d-53fa9c2b8859";
};
Act_segmenter(map<string,string> &settings):Act_segmenter() {
base_settings(settings);
soname="qm-vamp-plugins";
id="qm-segmenter";
outputNo=find_setting(settings,"outputNo",0);
};
~Act_segmenter(){};
Act_segmenter* clone(map<string,string> &_settings) { return new Act_segmenter(_settings);};
void cleanup(){
Vamp_node::cleanup();
map<float,vampHost::feature> acts; //temporary storage for new set of features
vector<int> act_count;
for (int i=0;i<(int)parameters["acts"]->value;i++) act_count.push_back(0);
if (features.size()<=(uint32_t)parameters["acts"]->value+1){
//iteratively split segments and refresh durations
//this could work well on the original data
//pick the longest and split it in two
//refresh durations - this can be a function
//keep going
//finally copy out
while (features.size()<(uint32_t)parameters["acts"]->value+1){
map<int,float> durations;
map<int,float> times;
int i=0;
for (map<float,vampHost::feature>::iterator f=features.begin();f!=features.end();++f){
auto g=f;
if (++g!=features.end()){
durations[i]=g->first-f->first;
times[i]=f->first;
}
i++;
}
float f=0;
int n=-1;
for (auto d: durations){
if (d.second>f){
f=d.second;
n=d.first;
}
}
features[times[n]+(durations[n]/2)]=features[times[n]];
}
int j=0;
for (auto f: features){
f.second.number=j;
acts[f.first]=f.second;
j++;
}
}
else { //there are extra segments to assign to acts
//assign act numbers to segments
//work through the segments
//have a list of segments that are to be filled
//start at the ends and work inwards
//have a list of how many times each segment has been used
//start with a set of the segments numbers
//(the aim: to access the segment numbers by the time that they start)
map<float,vampHost::feature> segments=features;
segments.erase(--segments.end());
//assign the acts from the beginning and end in towards the middle
//when all slots have bveen used it picks the middle item and uses surrrounding items again
//there is a limit of item use based on how near it is to the edge
bool take_start=true;
while (segments.size()){
int act=-1;
vampHost::feature f;
float t;
if (take_start){
f=(*segments.begin()).second;
t=(*segments.begin()).first;
segments.erase(segments.begin());
for (int i=0;i<(int)parameters["acts"]->value-1;i++) {
if (act_count[i]==0||(act_count[i+1]>act_count[i]&&act_count[i]<i)) {
act=i;
break;
}
}
}
else {
f=(*--segments.end()).second;
t=(*--segments.end()).first;
segments.erase(--segments.end());
for (int i=(int)parameters["acts"]->value-1;i>0;i--) {
if (act_count[i]==0||(act_count[i-1]>act_count[i]&&act_count[i]<(int)parameters["acts"]->value-i)) {
act=i;
break;
}
}
}
if (act==-1){ //all slots are filled equally
act=(int)parameters["acts"]->value/2;
}
act_count[act]++;
f.number=act;
acts[t]=f;
take_start=!take_start;
}
}
//add last item back on
acts[(*--features.end()).first]=features[(*--features.end()).first];
features=acts;
}
private:
};
class Intensity_segmenter: public Vamp_node {
//vamp node that applies a ruleset to manage a set of acts via a cycler
public:
Intensity_segmenter(){
title="Intensity segmenter";
description="Combines the output of segmentation, tempo, and intensity analysis plugins";
UID="6ce236b6-4080-11e3-90b7-74d02b29f6a6";
analysers["segmenter"]=vampHost::Analyser();
analysers["tempo"]=vampHost::Analyser();
analysers["intensity"]=vampHost::Analyser();
create_parameter("intensity_weight","number","intensity weight","Intensity weighting",1.0f);
create_parameter("tempo_weight","number","tempo weight","Tempo weighting",1.0f);
};
Intensity_segmenter(map<string,string> &settings):Intensity_segmenter() {
base_settings(settings);
};
~Intensity_segmenter(){};
Intensity_segmenter* clone(map<string,string> &_settings) { return new Intensity_segmenter(_settings);};
bool init(int _channels,int _bits,int _samples,int _rate) {
return analysers["segmenter"].init("qm-vamp-plugins","qm-segmenter",_channels,_bits,_samples,_rate,0,params)\
&&analysers["tempo"].init("qm-vamp-plugins","qm-tempotracker",_channels,_bits,_samples,_rate,2,params)\
&&analysers["intensity"].init("bbc-vamp-plugins","bbc-intensity",_channels,_bits,_samples,_rate,0,params);
}
int process_frame(uint8_t *data,int samples_in_frame) {
//for (auto a:analysers) a.second.process_frame(data,samples_in_frame); //WHY NOT WORK
analysers["segmenter"].process_frame(data,samples_in_frame);
analysers["tempo"].process_frame(data,samples_in_frame);
analysers["intensity"].process_frame(data,samples_in_frame);
return 1;
}
void cleanup(); //all the fun happens here
void print_summary(){
cerr<<"Intensity segmenter found "<<features.size()<<" features "<<endl;
};
private:
map<string,vampHost::Analyser> analysers;
};
}
#endif
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