processing - record and show video in the processing sketch - audio

Question

I have a webcam feed in my processing sketch and i can record and save the video. What i wanna accomplish is that when i go to the next case (drawScreenOne) that the video i just recorded will show up on the canvas. The problem that i have now, is that when i save the video, with the video export library from com.hamoid, it gets saved in the same folder as my sketch, but to play a movie it needs to be in the data folder. So i can't play the movies without it manually moving to the data folder. Can you do that from within processing?
And how can i load up the videos that i just created in a case before? Do i need to use an array for that? I can play the movies when i manually move it to the data folder but i want processing to handle that.
this is the code i have so far:
import com.hamoid.*;
import processing.video.*;
import ddf.minim.*;
Minim minim;
AudioInput in;
AudioRecorder recorder;
Movie myMovie;
Movie myMovie1;
int currentScreen;
VideoExport videoExport;
boolean recording = false;
Capture theCap;
Capture cam;
int i = 0;
int countname; //change the name
int name = 000000; //set the number in key's' function
// change the file name
void newFile()
{
countname =( name + 1);
recorder = minim.createRecorder(in, "file/Sound" + countname + ".wav", true);
// println("file/" + countname + ".wav");
}
void setup() {
size(500,500);
frameRate(30);
noStroke();
smooth();
myMovie = new Movie(this, "video0.mp4");
myMovie.loop();
myMovie1 = new Movie(this, "video1.mp4");
myMovie1.loop();
String[] cameras = Capture.list();
if (cameras.length == 0) {
println("There are no cameras available for capture.");
exit();
} else {
println("Available cameras:");
for (int i = 0; i < cameras.length; i++) {
println(cameras[i]);
}
// The camera can be initialized directly using an
// element from the array returned by list():
//cam = new Capture(this, cameras[3]); //built in mac cam "isight"
cam = new Capture(this, 1280, 960, "USB-camera"); //externe camera Lex, linker USB
cam.start();
}
println("Druk op R om geluid en video op te nemen.Druk nog een keer op R om het opnemen te stoppen en druk op S om het op te slaan Druk vervolgens op Z om verder te gaan.");
videoExport = new VideoExport(this, "video" + i + ".mp4");
minim = new Minim(this);
// get a stereo line-in: sample buffer length of 2048
// default sample rate is 44100, default bit depth is 16
in = minim.getLineIn(Minim.STEREO, 2048);
// create a recorder that will record from the input to the filename specified, using buffered recording
// buffered recording means that all captured audio will be written into a sample buffer
// then when save() is called, the contents of the buffer will actually be written to a file
// the file will be located in the sketch's root folder.
newFile();//go to change file name
textFont(createFont("SanSerif", 12));
}
void draw() {
switch(currentScreen){
case 0: drawScreenZero(); break; //camera
case 1: drawScreenOne(); break; //1 video
case 2: drawScreenZero(); break; //camera
case 3: drawScreenTwo(); break; // 2 video's
case 4: drawScreenZero(); break; //camera
case 5: drawScreenThree(); break; //3 video's
case 6: drawScreenZero(); break; //camera
case 7: drawScreenFour(); break; //4 video's
default: background(0); break;
}
}
void mousePressed() {
currentScreen++;
if (currentScreen > 2) { currentScreen = 0; }
}
void drawScreenZero() {
println("drawScreenZero camera");
if (cam.available() == true) {
cam.read();
}
image(cam, 0,0,width, height);
// The following does the same, and is faster when just drawing the image
// without any additional resizing, transformations, or tint.
//set(0, 0, cam);
if (recording) {
videoExport.saveFrame();
}
for(int i = 0; i < in.bufferSize() - 1; i++)
{
line(i, 50 + in.left.get(i)*50, i+1, 50 + in.left.get(i+1)*50);
line(i, 150 + in.right.get(i)*50, i+1, 150 + in.right.get(i+1)*50);
}
if ( recorder.isRecording() )
{
text("Aan het opnemen...", 5, 15);
text("Druk op R als je klaar bent met opnemen en druk op S om het op te slaan.", 5, 30);
}
else
{
text("Gestopt met opnemen. Druk op R om op te nemen, druk op S om op te slaan.", 5, 15);
}
}
void drawScreenOne() {
background(0,255,0);
//fill(0);
//rect(250,40,250,400);
println("drawScreenOne 1 video");
image(myMovie, 0,0, (width/2),(height/2));
}
void drawScreenTwo(){
background(0,0,255);
println("drawScreenTwo 2 videos");
//triangle(150,100,150,400,450,250);
image(myMovie, 0,0, (width/2),(height/2));
image(myMovie1, (width/2),(height/2),(width/2),(height/2));
}
void drawScreenThree(){
//fill(0);
//rect(250,40,250,400);
background(255,0,0);
println("drawScreenThree 3 videos");
image(myMovie, 0,0, (width/2),(height/2));
image(myMovie1, (width/2),(height/2),(width/2),(height/2));
image(myMovie, (width/2),0, (width/2),(height/2));
}
void drawScreenFour(){
//triangle(150,100,150,400,450,250);
background(0,0,255);
println("drawScreenFour 4 videos");
image(myMovie, 0,0, (width/2),(height/2));
image(myMovie1, (width/2),(height/2),(width/2),(height/2));
image(myMovie, (width/2),0, (width/2),(height/2));
image(myMovie1, 0,(height/2),(width/2),(height/2));
}
void keyPressed() {
if (key == 'r' || key == 'R') {
recording = !recording;
println("Recording is " + (recording ? "ON" : "OFF"));
} else if (key == 's' || key == 's') {
i++;
videoExport = new VideoExport(this, "video" + i + ".mp4");
currentScreen++;
if (currentScreen > 7) { currentScreen = 0; }
}
}
void movieEvent(Movie m) {
m.read();
}
void keyReleased()
{
if ( key == 'r' )
{
// to indicate that you want to start or stop capturing audio data, you must call
// beginRecord() and endRecord() on the AudioRecorder object. You can start and stop
// as many times as you like, the audio data will be appended to the end of the buffer
// (in the case of buffered recording) or to the end of the file (in the case of streamed recording).
if ( recorder.isRecording() )
{
recorder.endRecord();
}
else
{
/*#######################################*/
newFile();
/*#######################################*/
recorder.beginRecord();
}
}
if ( key == 's' )
{
// we've filled the file out buffer,
// now write it to the file we specified in createRecorder
// in the case of buffered recording, if the buffer is large,
// this will appear to freeze the sketch for sometime
// in the case of streamed recording,
// it will not freeze as the data is already in the file and all that is being done
// is closing the file.
// the method returns the recorded audio as an AudioRecording,
// see the example AudioRecorder >> RecordAndPlayback for more about that
name++; //change the file name, everytime +1
recorder.save();
println("Done saving.");
println(name);//check the name
}
}
void stop()
{
// always close Minim audio classes when you are done with them
in.close();
minim.stop();
super.stop();
}

Answer 1

Can you do that from within processing?
Sure. Just google something like "Java move file" and I'm sure you'll find a ton of results. Or you could just save the video to the data directory in the first place. I've never used the VideoExport class so this is just a guess, but I'd imagine that this would put the video in the data directory:
videoExport = new VideoExport(this, "data/video" + i + ".mp4");
And how can i load up the videos that i just created in a case before? Do i need to use an array for that?
I'm not sure I understand this question, but you can use any variable you want. Just keep track of where the files are going, and then load them from there.