Trying to add a song using minim

braisremeseiro

Hi:

import processing.video.*;
import ddf.minim.*;
import ddf.minim.AudioPlayer;

// Size of each cell in the grid
int cellSize = 20;
// Number of columns and rows in our system
int cols, rows;
// Variable for capture device
Capture video;
Minim minim;
AudioPlayer song;

void setup() {
size(1280, 720);
frameRate(30);
cols = width / cellSize;
rows = height / cellSize;
colorMode(RGB, 255, 255, 255, 100);

// This the default video input, see the GettingStartedCapture 
// example if it creates an error
video = new Capture(this, width, height);

// Start capturing the images from the camera
video.start();  

background(0);
}

{
// we pass this to Minim so that it can load files from the data directory
minim = new Minim(this);

// loadFile will look in all the same places as loadImage does.
// this means you can find files that are in the data folder and the 
// sketch folder. you can also pass an absolute path, or a URL.
song = minim.loadFile("untitled.wav");
}


void draw() { 
if (video.available()) {
video.read();
video.loadPixels();

// Begin loop for columns
for (int i = 0; i < cols; i++) {
  // Begin loop for rows
  for (int j = 0; j < rows; j++) {

    // Where are we, pixel-wise?
    int x = i*cellSize;
    int y = j*cellSize;
    int loc = (video.width - x - 1) + y*video.width; // Reversing x to mirror       the image

    float r = red(video.pixels[loc]);
    float g = green(video.pixels[loc]);
    float b = blue(video.pixels[loc]);
    // Make a new color with an alpha component
    color c = color(r, g, b, 75);

    // Code for drawing a single rect
    // Using translate in order for rotation to work properly
    pushMatrix();
    translate(x+cellSize/2, y+cellSize/2);
    // Rotation formula based on brightness
    rotate((2 * PI * brightness(c) / 255.0));
    rectMode(CENTER);
    fill(c);
    noStroke();
    // Rects are larger than the cell for some overlap
    rect(0, 0, cellSize+6, cellSize+6);
    popMatrix();
  }
  }
  }
  }

How Can I add a song when the webcam starts and finish when you close the application window?.

And to add this behavoiour to an Arduino sensor?.

Thanks.

braisremeseiro

The sketch path is not set. ==== JavaSound Minim Error ==== ==== java.lang.reflect.InvocationTargetException

=== Minim Error === === Couldn't load the file untitled.wav

This is the error.

braisremeseiro

I have this code for a song and it works:

import ddf.minim.*;
import ddf.minim.AudioPlayer;

Minim minim;
AudioPlayer song;

void setup() {

background(0, 0, 0);

//p2 play sound file

//Construct a new instance of minim

minim = new Minim(this);

//Load the file we want to play

song = minim.loadFile("data/untitled.wav");

//play the file

song.play();

}

void draw()
{
background(0);
}

But How I can add to the other code (the webcam effect) without errors?.

koogs

Lines 31 to 39 in the original should be within setup, currently they are in an unnamed block. This is why you get the error about paths not being available.

The first lot of code is also missing song.play()

koogs

Ctrl-t in the editor will indent your code nicely, make it easier to read and spot errors.

koogs

Is this meant to be in the Arduino section?

braisremeseiro

Thanks koogs!, Can you specify the what is the setup?.

koogs

You already have a setup, line 14 of the original post. Put the code in that block.

You have already posted a good example in your third post. Examine that, see what goes where, apply it to the first lot of code.

koogs

Indenting the code would make the blocks stand out more, make things more obvious.

Chrisir

the lines 31-39

remove the { } and then move the lines inside setup

before its }

braisremeseiro

Solved!, and now How Can I use the code of a PIR Sensor to start the webcam and audio?.

braisremeseiro

And to modify the code to reduce the cells and change the colors?.

Chrisir

weell, when you know how to detect the sensor , write in draw if(pir or what){ song.play(); video.start();}

remove those lines from setup of course

braisremeseiro

The sensor is possible in Processing?, I bought one for Arduino UNO. Which lines should I remove from the code (can you tell me which lines)?.

Chrisir

Remove in setup: song.play(); video.start();

Look at the examples- you need to check the pin

braisremeseiro

Thanks Chrisir!, What is check the pin?.

Chrisir

You will find it

braisremeseiro

Thanks! sure. Please, finally, Can you attach some webcams amazing video effects?.

Chrisir

Yes, you can

braisremeseiro

import processing.video.*; with that, :-).

braisremeseiro

What should I do if I want to add a texture of an image?.

TfGuy44

Use loadImage() to load the image. Store it in a PImage variable. Then display it when you want to display it by drawing it with a call to image().

You can look all those keywords up in the Reference to see what they do, what their parameteres are, and some examples of their use.

braisremeseiro

Can you put me an example?, I am a bit lost.

braisremeseiro

With the code that I have.

TfGuy44

https://processing.org/reference/PImage.html

braisremeseiro

I am reading it but something it was wrong:

size(100, 100);
loadImage("data/1.png");
 }

void draw() {

image("data/1.png",100,100,100,100);
}

{ 

braisremeseiro

Please, Can you help me?.

braisremeseiro

And with a video layered and with opacity?.

braisremeseiro

NullPointerException error. What should I do?.

Chrisir

Look at the reference for the commands loadImage and image

Hint: you need an PImage variable

No use to ask every mini step here instead do some research in the reference section and examples and tutorials

Chrisir

For video stuff:

https://forum.processing.org/two/discussion/26401/interactive-video-with-sound-input#latest

braisremeseiro

Thanks for answer, this is the code, I do not know what I am doing bad:

import processing.video.*;
import ddf.minim.*;
import ddf.minim.AudioPlayer;

// Size of each cell in the grid
int cellSize = 20;
// Number of columns and rows in our system
int cols, rows;
// Variable for capture device
Capture video;
Minim minim;
AudioPlayer song;
PImage photo;

void setup() {
size(1280, 720);
frameRate(30);
cols = width / cellSize;
rows = height / cellSize;
colorMode(RGB, 255, 255, 255, 100);

 // This the default video input, see the GettingStartedCapture 
// example if it creates an error
 video = new Capture(this, width, height);

// Start capturing the images from the camera
video.start();  
background(0);

// we pass this to Minim so that it can load files from the data directory
minim = new Minim(this);

// loadFile will look in all the same places as loadImage does.
// this means you can find files that are in the data folder and the 
// sketch folder. you can also pass an absolute path, or a URL.
song = minim.loadFile("data/untitled.wav");
song.play();
{
photo = loadImage("3.jpg");
}
}

void draw() 
{ 
if (video.available()) {
video.read();
video.loadPixels();

 // Begin loop for columns
 for (int i = 0; i < cols; i++) {
// Begin loop for rows
for (int j = 0; j < rows; j++) {
// Where are we, pixel-wise?
int x = i*cellSize;
int y = j*cellSize;
int loc = (video.width - x - 1) + y*video.width; // Reversing x to mirror the               image

 float r = red(video.pixels[loc]);
 float g = green(video.pixels[loc]);
 float b = blue(video.pixels[loc]);
 // Make a new color with an alpha component
 color c = color(r, 50, 50, 75);

// Code for drawing a single rect
// Using translate in order for rotation to work properly
pushMatrix();
translate(x+cellSize/2, y+cellSize/2);
// Rotation formula based on brightness
rotate((2 * PI * brightness(c) / 255.0));
rectMode(CENTER);
fill(c);
noStroke();
// Rects are larger than the cell for some overlap
rect(0, 0, cellSize+6, cellSize+6);
popMatrix();
}
}
}
}
 {
image(photo, width/2, height/2);
}

koogs

Ctrl-t in the editor will indent your code nicely... This will help you see the code structure.

I think you have a hanging code block but...

braisremeseiro

Please, help me.

braisremeseiro

I do all as it is indicated and it fails.

braisremeseiro

The problem is that not layered with the video.

Chrisir

??

hit ctrl-t in processing

try to debug it, just read it slowly and carefully

when, done and IF you haven't found the bug

hit ctrl-t in processing and then post the entire sketch again

braisremeseiro

How Can add a video layer above the webcam detecting code?.

kfrajer

You need to work on a quick start guide for the arduino side. From your posts, it is hard to tell how much experience (if any) you have working with arduinos. You can google something like "Arduino Quick start guide PRI sensor" and I am sure you can get started easily in the arduino side. You need to work in a code that matches your electronic setup. From what I see here in the posts, you don't have much experience in Processing. I strongly recommend you explore all the example that comes with the Video section. Make copy of any of those provided examples and modify them at your leisure. Master those examples. Keep the reference page handy (https://processing.org/reference/)

There are other resources for you to explore. For example: https://processing.org/tutorials/

Explore the video, the sound and the Electronics tutorial. This, what I am describing here is presented here: https://processing.org/tutorials/gettingstarted/

Other resources to explore: https://processing.org/examples/

Kf

braisremeseiro

Please, just tell me how to add a video layer of this posted code, please.

braisremeseiro

Something like Multiply on Photoshop.

braisremeseiro

Is that possible in Processing?.