From c5085b5a31c1e25bf83ae910710996863531f8b2 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Fri, 30 Aug 2013 18:27:08 +0100
Subject: value output from audio analysis

---
 rotord/src/rotor.cpp | 118 ---------------------------------------------------
 1 file changed, 118 deletions(-)

(limited to 'rotord/src/rotor.cpp')

diff --git a/rotord/src/rotor.cpp b/rotord/src/rotor.cpp
index f1a2605..3246240 100755
--- a/rotord/src/rotor.cpp
+++ b/rotord/src/rotor.cpp
@@ -77,123 +77,6 @@ float Parameter::get(const Time_spec& time){	//gets input and updates variable
 	}
 	return value;
 }
-bool Audio_thumbnailer::init(int _channels,int _bits,int _samples,int _rate) {
-	//base_audio_processor::init(_channels,_bits,_samples);
-	channels=_channels;
-	bits=_bits;
-	samples=_samples;
-	samples_per_column=samples/width;
-	column=0; //point thumbnail bitmap
-	out_sample=0; //sample in whole track
-	offset=0x1<<(bits-1); //signed audio
-	scale=1.0f/offset;
-	sample=0;
-	samples=0;
-	accum=0.0;
-	return true;
-}
-int Audio_thumbnailer::process_frame(uint8_t *_data,int samples_in_frame){
-	//begin by processing remaining samples
-	//samples per column could be larger than a frame! (probably is)
-	//but all we are doing is averaging
-	int bytes=(bits>>3);
-	int stride=channels*bytes;
-	int in_sample=0;
-	while (in_sample<samples_in_frame&&column<width) {
-		//continue the column
-		while (sample<samples_per_column&&in_sample<samples_in_frame) {
-			//accumulate samples for this column until we run out of samples
-			for (int i=0;i<channels;i++) {
-				unsigned int this_val=0;
-				for (int j=0;j<bytes;j++) {
-					this_val+=_data[(in_sample*stride)+(i*bytes)+j]<<(j*8);
-				}
-				//convert from integer data format - i.e s16p - to audio signal in -1..1 range
-				//presume 16 bits for now...
-				double val=((double)((int16_t)this_val))*scale;
-				accum+=val*val;
-				samples++;
-			}
-			in_sample++;
-			sample++;
-			out_sample++;
-		}
-		if (sample==samples_per_column) { //finished a column
-			//get root-mean
-			double mean=pow(accum/samples,0.5);
-			//if (column==0) {
-			//	cerr << "first column total: "<< accum << " in " << samples << " samples, average " << (accum/samples)<<endl;
-			//}
-			int colheight=height*mean*0.5;
-			int hh=height>>1;
-			for (int i=0;i<height;i++) {
-				data[i*width+column]=abs(i-hh)<colheight?0xff:0x00;
-			}
-			vectordata[column]=mean;
-			column++;
-			sample=0;
-			samples=0;
-			accum=0.0;
-		}
-	}
-	return out_sample;
-}
-string Audio_thumbnailer::print(){
-	//base64 encode the image data output it
-
-	stringstream output;
-	Poco::Base64Encoder *enc=new Poco::Base64Encoder(output);
-
-	enc->write((char*)data,width*height);
-	//tring output;
-	/*
-	for (int j=0;j<height;j++) {
-		for (int i=0;i<width;i++) {
-			output+=data[j*width+i]<0x7f?"0":"1";
-		}
-		output +="\n";
-	}
-	*/
-	enc->close();
-	delete enc;
-	return output.str();
-}
-void Audio_thumbnailer::print_vector(xmlIO XML){
-	string vdata;
-	for (int i=0;i<width;i++){
-		if (i>0) vdata+=",";
-		vdata+=ofToString(vectordata[i]);
-	}
-	XML.addValue("data",vdata);
-}
-bool Audio_analysis::init(int _channels,int _bits,int _samples, int _rate) {
-	//need these to make sense of data
-	channels=_channels;
-	bits=_bits;
-	samples=_samples;
-
-	return analyser.init(soname,id,_channels,_bits,_samples,_rate,outputNo,params);
-
-
-	//attempt to load vamp plugin and prepare to receive frames of data
-	//should the audio analysis contain a vamphost or should it inherit?
-	//maybe neater to contain it in terms of headers etc
-
-}
-int Audio_analysis::process_frame(uint8_t *data,int samples_in_frame) {
-	analyser.process_frame(data,samples_in_frame);
-	return 1;
-}
-void Audio_analysis::cleanup() {
-	analyser.cleanup();
-	//print_features();
-}
-void Audio_analysis::print_features(){
-	for (auto i: analyser.features) {
-		cerr<<" ["<<i.second<<":"<<i.first<<"]";
-	}
-	cerr<<endl;
-}
 bool Video_output::render(const float duration, const float framerate,const string &output_filename,const string &audio_filename,float& progress,int outW,int outH){
 
 	//
@@ -202,7 +85,6 @@ bool Video_output::render(const float duration, const float framerate,const stri
 	AVCodecID codecId=AV_CODEC_ID_H264; //MPEG4;
 	std::string container ="mp4";
 
-
     //at the moment it crashes if you render before audio is loaded and also on 2nd render
     libav::exporter exporter;
 
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