625 lines
19 KiB
HTML
625 lines
19 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<script type = "text/javascript">
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var framecount=0;
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var buf = new Uint8ClampedArray(768);
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var framebuffer1 = "";
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var starttime = new Date().getTime();
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var currentfps = 25;
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var fpsms = 1000/currentfps;
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var videocontrast=0;
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var sat_r=256;
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var sat_g=256;
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var sat_b=256;
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var vf_size_x = 480;
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var vf_size_y = 360;
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var vf_pos_x = 0;
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var vf_pos_y = 0;
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var v_size_x = 32;
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var v_size_y = 24;
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var v_pos_x = 0;
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var v_pos_y = 0;
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var zoom=1;
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var loop_video=0;
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var mute_video=0;
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function contrastImage(imgData, contrast){ //input range [-100..100]
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var d = imgData.data;
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contrast = (contrast/100) + 1; //convert to decimal & shift range: [0..2]
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var intercept = 128 * (1 - contrast);
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for(var i=0;i<d.length;i+=4){ //r,g,b,a
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d[i] = d[i]*contrast + intercept;
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d[i+1] = d[i+1]*contrast + intercept;
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d[i+2] = d[i+2]*contrast + intercept;
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}
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return imgData;
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}
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var loc = window.location, new_uri;
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new_uri = "ws://" + loc.host + "/ws";
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var ws = new WebSocket(new_uri);
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ws.onopen = function() {
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console.log("WS BINARY TYPE: "+ws.binaryType);
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};
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ws.onmessage = function(evt) {
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/* INCOMING MESSAGE */
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};
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let processor = {
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timerCallback: function() {
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var timenow = new Date().getTime();
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var timediff = timenow-starttime;
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if (this.video.paused || this.video.ended) {
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return;
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}
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if (timediff>fpsms) {
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starttime=timenow;
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//console.log("timediff: "+timediff);
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this.computeFrame();
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}
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let self = this;
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setTimeout(function () {
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self.timerCallback();
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}, 0);
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},
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doLoad: function() {
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console.log("doLoad");
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document.querySelector('input').addEventListener('change', processor.extractFrames, false);
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this.video = document.getElementById("video");
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this.c1 = document.getElementById("c1");
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this.ctx1 = this.c1.getContext("2d");
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this.matrix = document.getElementById("matrix");
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let self = this;
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/* CREATE PIXEL NODES */
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for (var i=0; i<768; i++) {
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var px = document.createElement("div");
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px.className = "px";
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matrix.appendChild(px);
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}
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this.video.addEventListener("play", function() {
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self.width = self.video.videoWidth / 10;
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self.height = self.video.videoHeight / 10;
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self.timerCallback();
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}, false);
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},
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readURL: function(input) {
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console.log("readURL");
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var video = document.getElementById("video");
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var matrix = document.getElementById("matrix");
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video.pause();
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if (input.files && input.files[0]) {
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var file = input.files[0];
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var url = URL.createObjectURL(file);
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console.log(url);
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var reader = new FileReader();
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reader.onload = function() {
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video.src = url;
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video.load();
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video.addEventListener('loadeddata', function() {
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var xratio = video.videoWidth/480;
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var yratio = video.videoHeight/360;
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console.log(video.videoWidth);
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var video_container = document.getElementById("video_container");
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var video_frame = document.getElementById("vidframe");
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var vidframe_offset_x = video_frame.offsetLeft-video_container.offsetLeft;
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var vidframe_offset_y = video_frame.offsetTop-video_container.offsetTop;
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v_pos_x=Math.floor(vidframe_offset_x*xratio);
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v_pos_y=Math.floor(vidframe_offset_y*yratio);
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v_size_x = Math.floor((480/zoom)*xratio);
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v_size_y = Math.floor((360/zoom)*yratio);
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console.log("vpx: "+v_pos_x+" --- vpy: "+v_pos_y);
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/*
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v_size_x = Math.floor((480/zoom)*xratio);
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v_size_y = Math.floor((360/zoom)*yratio);
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v_pos_x=Math.floor(vf_pos_x*10*xratio);
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v_pos_y=Math.floor(vf_pos_y*10*yratio);
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*/
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console.log("V z "+zoom+" "+xratio+" "+v_pos_x+" "+v_pos_y+" "+v_size_x+" "+v_size_y);
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video.controls = false;
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video.play();
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}, false);
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//video.controls = true;
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console.log(video);
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console.log("loaded height "+video.videoHeight);
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}
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reader.readAsDataURL(file);
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for (let i = 0; i < 768; i+=1) {
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matrix.childNodes[i].style.backgroundColor = "rgb(0,0,0)";
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buf[i]=0;
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}
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}
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},
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computeFrame: function() {
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framebuffer1="";
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this.ctx1 = this.c1.getContext("2d");
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var ratio = this.video.videoHeight/this.video.videoWidth;
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this.width = 32;
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this.cw = Math.round(32*ratio);
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if (this.cw%2!=0) this.cw+=1;
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//if (zoom>1) this.cw = 24;
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this.height = this.cw;
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this.offsety = Math.floor((24-this.cw)*.5)*32;
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this.ctx1.drawImage(this.video, v_pos_x, v_pos_y, v_size_x, v_size_y, 0, 0, this.width, this.height);
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//let frame = this.ctx1.getImageData(0, 0, this.width, this.height);
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let frame = contrastImage(this.ctx1.getImageData(0, 0, this.width, this.height),videocontrast);
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let l = frame.data.length / 4;
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for (let i = 0; i < 768; i+=1) {
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buf[i]=0;
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}
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for (let i = 0; i < l; i+=1) {
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var true_r = Math.floor((frame.data[i * 4 + 0] / 32 * (sat_r/256)));
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var true_g = Math.floor((frame.data[i * 4 + 1] / 32 * (sat_g/256)));
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var true_b = Math.floor((frame.data[i * 4 + 2] / 64 * (sat_b/256)));
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let r = (true_r << 5);
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let g = (true_g << 2); //0 << 2;
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let b = true_b;
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var px_r = true_r * 32;
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var px_g = true_g * 32;
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var px_b = true_b * 64;
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if (i+this.offsety<768) {
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matrix.childNodes[i+this.offsety].style.backgroundColor = "rgb("+px_r+","+px_g+","+px_b+")";
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var py = Math.floor((i+this.offsety)/32);
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var pii = (i+this.offsety)-(py*32);
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//var pii = (i+this.offsety);
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if (py%2==0) {
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//buf[py*32+31-pii]=r+g+b;
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buf[py*32+pii]=r+g+b;
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} else {
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//buf[py*32+pii]=r+g+b;
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buf[py*32+31-pii]=r+g+b;
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}
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}
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}
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ws.send(buf.buffer);
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framecount+=1;
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return;
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}
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};
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document.addEventListener("DOMContentLoaded", () => {
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processor.doLoad();
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var slider_r = document.getElementById("rgb_r");
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var slider_g = document.getElementById("rgb_g");
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var slider_b = document.getElementById("rgb_b");
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var slider_zoom = document.getElementById("zoom");
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var contrast_slider = document.getElementById("video_contrast");
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var slider_offsetx = document.getElementById("vf_offset_x");
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var slider_offsety = document.getElementById("vf_offset_y");
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slider_offsetx.value=0;
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slider_offsety.value=0;
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slider_zoom.value=1;
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slider_r.value=8;
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slider_g.value=8;
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slider_b.value=8;
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var playvid = document.getElementById("playvid");
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var loopvid = document.getElementById("loopvid");
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var mutevid = document.getElementById("mutevid");
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var myVideo = document.getElementById("video");
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var viframe = document.getElementById("vidframe");
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var v_progress = document.getElementById("v_progress");
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var v_volume = document.getElementById("v_volume");
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var docbody = document.getElementById("body");
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var fullvid = document.getElementById("fullvid");
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docbody.onresize = function() {
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var vidc = document.getElementById("video_container");
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var vidfr = document.getElementById("vidframe");
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console.log("newx "+vidc.offsetLeft);
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vidfr.style.top = (parseInt(vidc.offsetTop)+parseInt(slider_offsety.value))+"px";
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vidfr.style.left = (parseInt(vidc.offsetLeft)+parseInt(slider_offsetx.value))+"px";
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console.log("vidframe x: "+vidfr.offsetLeft);
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console.log("slider x: "+slider_offsetx.value);
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//console.log("vidcontainer x: "+vidc.offsetLeft+" "+slider_offsetx.value);
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}
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v_progress.oninput = function() {
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var skipto = Math.floor((v_progress.value/100)*myVideo.duration);
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myVideo.currentTime = skipto;
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processor.computeFrame();
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};
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v_volume.oninput = function() {
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myVideo.volume = v_volume.value*.01;
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if (v_volume.value==0) {
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mutevid.className = "muteactive";
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} else {
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mutevid.className = "";
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}
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};
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function togglePlay() {
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if (myVideo.paused) {
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myVideo.play();
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playvid.innerHTML = "⏸";
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} else {
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myVideo.pause();
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playvid.innerHTML = "▶";
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}
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};
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myVideo.onended = function() {
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console.log("The video has ended");
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playvid.innerHTML = "▶";
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};
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myVideo.onplay = function() {
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console.log("The video has started");
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playvid.innerHTML = "⏸";
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};
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myVideo.ontimeupdate = function(){
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var percentage = Math.floor(( myVideo.currentTime / myVideo.duration ) * 100);
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//console.log("percent: "+percentage);
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v_progress.value = percentage;
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};
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slider_r.oninput = function() {
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sat_r=this.value*32;
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this.style.backgroundColor = "rgb("+sat_r+",0,0)";
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processor.computeFrame();
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}
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slider_g.oninput = function() {
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sat_g=this.value*32;
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this.style.backgroundColor = "rgb(0,"+sat_g+",0)";
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processor.computeFrame();
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}
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slider_b.oninput = function() {
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sat_b=this.value*64;
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this.style.backgroundColor = "rgb(0,0,"+sat_b+")";
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processor.computeFrame();
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}
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slider_zoom.oninput = function() {
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zoom=this.value*.1;
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makeZoom();
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}
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contrast_slider.oninput = function() {
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videocontrast=this.value;
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}
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slider_offsetx.oninput = function() {
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var tempvideo = document.getElementById("video");
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var vidframe = document.getElementById("vidframe");
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vf_pos_x=this.value;
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vidframe.style.marginLeft = ((vf_pos_x*10)-2)+"px";
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var xratio = tempvideo.videoWidth/480;
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v_pos_x=Math.floor(vf_pos_x*10*xratio);
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console.log("xratio: "+xratio);
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processor.computeFrame();
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}
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slider_offsety.oninput = function() {
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var tempvideo = document.getElementById("video");
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var vidframe = document.getElementById("vidframe");
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vf_pos_y=this.value;
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vidframe.style.marginTop = ((vf_pos_y*10)-2)+"px";
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var yratio = tempvideo.videoHeight/360;
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v_pos_y=Math.floor(vf_pos_y*10*yratio);
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console.log("yratio: "+yratio);
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processor.computeFrame();
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}
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playvid.onclick = function() {
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var tempvideo = document.getElementById("video");
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console.log("aka");
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//tempvideo.play();
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togglePlay();
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}
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fullvid.onclick = function() {
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var tempvideo = document.getElementById("video");
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tempvideo.requestFullscreen();
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}
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loopvid.onclick = function() {
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var tempvideo = document.getElementById("video");
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var loopvid = document.getElementById("loopvid");
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if (loop_video==0) {
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tempvideo.loop = true;
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loop_video=1;
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loopvid.classList.add("loopactive");
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} else {
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tempvideo.loop = false;
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loop_video=0;
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loopvid.classList.remove("loopactive");
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}
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}
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mutevid.onclick = function() {
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var tempvideo = document.getElementById("video");
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if (mute_video==1) {
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tempvideo.volume = .5;
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mute_video=0;
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this.classList.remove("muteactive");
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v_volume.value=50;
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} else {
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tempvideo.volume = 0;
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mute_video=1;
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this.classList.add("muteactive");
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v_volume.value=0;
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}
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}
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function doZoom(event) {
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event.preventDefault();
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console.log(event.deltaY);
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if (zoom-event.deltaY*.1>=1 && zoom-event.deltaY*.1<=10) {
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zoom-=event.deltaY*.1;
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makeZoom();
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}
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}
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function makeZoom(event) {
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var tempvideo = document.getElementById("video");
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var xratio = tempvideo.videoWidth/480;
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var yratio = tempvideo.videoHeight/360;
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vf_size_x = Math.floor(480/zoom);
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console.log("vf_Sx: "+vf_size_x);
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console.log("vf_Px: "+vf_pos_x);
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vf_size_y = Math.floor(360/zoom);
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v_size_x = Math.floor((480/zoom)*xratio);
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v_size_y = Math.floor((360/zoom)*yratio);
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var vidframe = document.getElementById("vidframe");
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vidframe.style.width = vf_size_x+"px";
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vidframe.style.height = vf_size_y+"px";
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processor.computeFrame();
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}
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video.onwheel = doZoom;
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viframe.onwheel = doZoom;
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dragElement(document.getElementById("vidframe"));
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function dragElement(elmnt) {
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var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0, vftop = 0, vfleft = 0;
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if (document.getElementById(elmnt.id + "header")) {
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// if present, the header is where you move the DIV from:
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document.getElementById(elmnt.id + "header").onmousedown = dragMouseDown;
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} else {
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// otherwise, move the DIV from anywhere inside the DIV:
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elmnt.onmousedown = dragMouseDown;
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}
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function dragMouseDown(e) {
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e = e || window.event;
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e.preventDefault();
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// get the mouse cursor position at startup:
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pos3 = e.clientX;
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pos4 = e.clientY;
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document.onmouseup = closeDragElement;
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// call a function whenever the cursor moves:
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document.onmousemove = elementDrag;
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}
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function elementDrag(e) {
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e = e || window.event;
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e.preventDefault();
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// calculate the new cursor position:
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pos1 = pos3 - e.clientX;
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pos2 = pos4 - e.clientY;
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pos3 = e.clientX;
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pos4 = e.clientY;
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// set the element's new position:
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var video_container = document.getElementById("video_container");
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var video_frame = document.getElementById("vidframe");
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var vf_rightbound = elmnt.offsetLeft-pos1-video_container.offsetLeft+video_frame.offsetWidth;
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var vf_bottombound = elmnt.offsetTop-pos2-video_container.offsetTop+video_frame.offsetHeight;
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//console.log("vf_right: "+vf_rightbound+" --- vf_bottom: "+vf_bottombound);
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if (vf_rightbound<480 && (elmnt.offsetLeft - pos1)>=video_container.offsetLeft && vf_bottombound<360 && (elmnt.offsetTop - pos2)>=video_container.offsetTop) {
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elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
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elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
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/* UPDATE FRAME INFO */
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var tempvideo = document.getElementById("video");
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var yratio = tempvideo.videoHeight/360;
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var xratio = tempvideo.videoWidth/480;
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var tvf_pos_x=elmnt.offsetLeft-video_container.offsetLeft;
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var tvf_pos_y=elmnt.offsetTop-video_container.offsetTop;
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vf_pos_x=tvf_pos_x;
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vf_pos_y=tvf_pos_y;
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v_pos_x=Math.floor(tvf_pos_x*xratio);
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v_pos_y=Math.floor(tvf_pos_y*yratio);
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var slide_offsetx = document.getElementById("vf_offset_x");
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var slide_offsety = document.getElementById("vf_offset_y");
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slide_offsetx.value = tvf_pos_x;
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slide_offsety.value = tvf_pos_y;
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} else {
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}
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}
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function closeDragElement() {
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// stop moving when mouse button is released:
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document.onmouseup = null;
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document.onmousemove = null;
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var video_container = document.getElementById("video_container");
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//console.log(video_container);
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|
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var video_frame = document.getElementById("vidframe");
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//console.log(video_frame);
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|
|
|
|
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processor.computeFrame();
|
|
}
|
|
}
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|
|
|
|
|
});
|
|
</script>
|
|
<style>
|
|
body { background:#333; font-family:sans-serif; margin:0px; padding:20px; color:#f7f7f7; }
|
|
#c2 { background-repeat: no-repeat; }
|
|
#matrix { float:none; clear:both; width:320px; height:240px; }
|
|
.px { float:left; width:9px; height:9px; margin:0px; padding:0px; display:block; border:0px; border-left:1px solid #222; border-top:1px solid #222; }
|
|
#video_container { width:480px; height:360px; margin-bottom:10px; }
|
|
#video { width:100%; height:100%; outline:0; }
|
|
#c1 { float:left; display:none; }
|
|
|
|
/* slider */
|
|
.slidecontainer { width: 482px; float:right; margin-bottom:20px; }
|
|
.slidecontainer span { margin-bottom:10px; display:block; font-weight:bold; }
|
|
.slider { -webkit-appearance: none; width: 100%; height: 9px; border-radius: 5px; background: #444; outline: 0px!important; -webkit-transition: .2s; transition: opacity .2s; margin-bottom:10px; }
|
|
.slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 25px; height: 25px; border-radius: 50%; background: #00f; cursor: pointer; outline:0px!important; }
|
|
.slider::-moz-range-thumb { width: 11px; height: 11px; border-radius: 50%; border:0px; background: #fff; cursor: pointer; outline:0px!important; }
|
|
|
|
.slider.red { background:#e00; }
|
|
.slider.green { background:#0a0; }
|
|
.slider.blue { background:#00b; }
|
|
.slider.white { background:#555; }
|
|
.slider.grey { background:#222; }
|
|
.slider.grey:hover::-moz-range-thumb { background:#098; }
|
|
.slider.grey::-moz-range-thumb:hover { background:#098; }
|
|
|
|
#vidframe { position:absolute; width:480px; height:360px; border:1px solid rgba(255,255,255,.5); margin-top:0px; margin-left:0px; cursor:grab; }
|
|
#playvid { display:block; background:#222; padding:5px; width:20px; text-align:center; cursor:pointer; height:22px; margin-left:0px; margin-bottom:10px; float:left; }
|
|
#playvid:hover { background:#089; }
|
|
#outputleft { float:left; width:340px; }
|
|
#outputleft span { margin-bottom:10px; display:block; font-weight:bold; }
|
|
#inputright { float:right; width:500px; }
|
|
|
|
#v_progress { float:left; width:250px; margin-top:12px; margin-left:10px; }
|
|
#v_volume { float:left; width:100px; margin-top:12px; margin-left:10px; }
|
|
#fullvid { float:right; margin-top:7px; text-align:center; background:#222; cursor:pointer; }
|
|
#mutevid { float:left; margin-top:7px; text-align:center; margin-left:15px; cursor:pointer; }
|
|
#loopvid { float:left; margin-top:7px; margin-left:10px; text-align:center; cursor:pointer; }
|
|
.loopactive { color:#089; }
|
|
.muteactive { color:rgba(255,255,255,.1); }
|
|
</style>
|
|
</head>
|
|
|
|
<body id="body">
|
|
<div id="outputleft">
|
|
<span>Matrix Output</span>
|
|
<div id="matrix"></div>
|
|
</div>
|
|
<div id="inputright">
|
|
<div class="slidecontainer">
|
|
<span>Video Input & Controls</span>
|
|
<div id="video_container">
|
|
<div id="vidframe"></div>
|
|
<video id="video" src="input.mp4" />
|
|
</div>
|
|
<div id="playvid">▶</div>
|
|
<input type="range" min="0" max="100" value="0" class="slider grey" id="v_progress">
|
|
<div id="loopvid">↻</div>
|
|
<div id="mutevid">🔊</div>
|
|
<input type="range" min="0" max="100" value="50" class="slider grey" id="v_volume">
|
|
|
|
<div id="fullvid">⛶</div>
|
|
<br/>
|
|
<input type="file" accept="video/*" style="margin-top:30px; float:none; clear:both; display:block; max-width:100%;" onchange="processor.readURL(this);" />
|
|
<div style="clear:both"></div>
|
|
<br/>
|
|
</div>
|
|
<div class="slidecontainer">
|
|
<span>Channel Saturation</span>
|
|
<input type="range" min="1" max="8" value="8" class="slider red" id="rgb_r">
|
|
<input type="range" min="1" max="8" value="8" class="slider green" id="rgb_g">
|
|
<input type="range" min="1" max="4" value="4" class="slider blue" id="rgb_b">
|
|
</div>
|
|
<div class="slidecontainer">
|
|
<span>Contrast</span>
|
|
<input type="range" min="-100" max="200" value="0" class="slider white" id="video_contrast">
|
|
</div>
|
|
<div class="slidecontainer">
|
|
<span>Zoom</span>
|
|
<input type="range" min="10" max="100" value="1" class="slider white" id="zoom">
|
|
</div>
|
|
<div class="slidecontainer">
|
|
<span>Offset</span>
|
|
<input type="range" min="0" max="480" value="0" class="slider white" id="vf_offset_x">
|
|
<input type="range" min="0" max="360" value="0" class="slider white" id="vf_offset_y">
|
|
</div>
|
|
|
|
<canvas id="c1" width="320" height="240"></canvas>
|
|
<div style="clear:both;"></div>
|
|
</div>
|
|
</body>
|
|
</html>
|