Reorganize ardGL
This commit is contained in:
parent
d3754e7a86
commit
02ca4bdd8e
@ -10,6 +10,7 @@ import VideoAlignment from '../../../common/enums/video-alignment.enum';
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import AspectRatio from '../../../common/enums/aspect-ratio.enum';
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import { generateHorizontalAdder } from './gllib/shader-generators/HorizontalAdderGenerator';
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import { getVertexShader } from './gllib/shaders/vertex-shader';
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import { sleep } from '../Util';
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/**
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* AardGl: Hardware accelerated aspect ratio detection script, based on WebGL
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@ -45,6 +46,149 @@ class AardGl {
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this.logger.log('info', 'init', `[AardGl::ctor] creating new AardGl. arid: ${this.arid}`);
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}
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/**
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*
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* HELPER FUNCTIONS
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*
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*/
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//#region helpers
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canTriggerFrameCheck(lastFrameCheckStartTime) {
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if (this._paused) {
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return false;
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}
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if (this.video.ended || this.video.paused){
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// we slow down if ended or pausing. Detecting is pointless.
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// we don't stop outright in case seeking happens during pause/after video was
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// ended and video gets into 'playing' state again
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return Date.now() - lastFrameCheckStartTime > this.settings.active.arDetect.timers.paused;
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}
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if (this.video.error){
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// če je video pavziran, še vedno skušamo zaznati razmerje stranic - ampak bolj poredko.
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// if the video is paused, we still do autodetection. We just do it less often.
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return Date.now() - lastFrameCheckStartTime > this.settings.active.arDetect.timers.error;
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}
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return Date.now() - lastFrameCheckStartTime > this.settings.active.arDetect.timers.playing;
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}
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isRunning(){
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return ! (this._halted || this._paused || this._exited);
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}
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scheduleInitRestart(timeout, force_reset){
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if(! timeout){
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timeout = 100;
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}
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// don't allow more than 1 instance
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if(this.setupTimer){
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clearTimeout(this.setupTimer);
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}
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var ths = this;
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this.setupTimer = setTimeout(function(){
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ths.setupTimer = null;
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try{
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ths.main();
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} catch(e) {
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this.logger('error', 'debug', `[AardGl::scheduleInitRestart] <@${this.arid}> Failed to start main(). Error:`,e);
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}
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ths = null;
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},
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timeout
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);
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}
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getTimeout(baseTimeout, startTime){
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var execTime = (performance.now() - startTime);
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return baseTimeout;
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}
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async nextFrame() {
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return new Promise(resolve => window.requestAnimationFrame(resolve));
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}
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getDefaultAr() {
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return this.video.videoWidth / this.video.videoHeight;
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}
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resetBlackLevel(){
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this.blackLevel = this.settings.active.arDetect.blackbar.blackLevel;
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}
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clearImageData(id) {
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if (ArrayBuffer.transfer) {
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ArrayBuffer.transfer(id, 0);
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}
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id = undefined;
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}
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//#endregion
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//#region canvas management
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attachCanvas(canvas){
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if(this.attachedCanvas)
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this.attachedCanvas.remove();
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// todo: place canvas on top of the video instead of random location
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canvas.style.position = "absolute";
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canvas.style.left = "200px";
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canvas.style.top = "1200px";
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canvas.style.zIndex = 10000;
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document.getElementsByTagName("body")[0]
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.appendChild(canvas);
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}
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canvasReadyForDrawWindow(){
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this.logger.log('info', 'debug', `%c[AardGl::canvasReadyForDrawWindow] <@${this.arid}> canvas is ${this.canvas.height === window.innerHeight ? '' : 'NOT '}ready for drawWindow(). Canvas height: ${this.canvas.height}px; window inner height: ${window.innerHeight}px.`)
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return this.canvas.height == window.innerHeight
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}
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//#endregion
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//#region aard control
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start() {
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this.logger.log('info', 'debug', `"%c[AardGl::start] <@${this.arid}> Starting automatic aspect ratio detection`, _ard_console_start);
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if (this.conf.resizer.lastAr.type === AspectRatio.Automatic) {
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// ensure first autodetection will run in any case
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this.conf.resizer.setLastAr({type: AspectRatio.Automatic, ratio: this.getDefaultAr()});
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}
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// launch main() if it's currently not running:
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this.main();
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// automatic detection starts halted. If halted=false when main first starts, extension won't run
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// this._paused is undefined the first time we run this function, which is effectively the same thing
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// as false. Still, we'll explicitly fix this here.
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this._paused = false;
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this._halted = false;
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this._paused = false;
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}
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stop(){
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this.logger.log('info', 'debug', `"%c[AardGl::stop] <@${this.arid}> Stopping automatic aspect ratio detection`, _ard_console_stop);
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this._halted = true;
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// this.conf.resizer.setArLastAr();
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}
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pause() {
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// pause only if we were running before. Don't pause if we aren't running
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// (we are running when _halted is neither true nor undefined)
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if (this._halted === false) {
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this._paused = true;
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}
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}
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unpause() {
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// pause only if we were running before. Don't pause if we aren't running
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// (we are running when _halted is neither true nor undefined)
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if (this._paused && this._halted === false) {
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this._paused = true;
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}
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}
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setManualTick(manualTick) {
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this._manualTicks = manualTick;
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}
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@ -52,7 +196,70 @@ class AardGl {
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tick() {
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this._nextTick = true;
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}
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//#endregion
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//#region WebGL helpers
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glSetRectangle(glContext, width, height) {
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glContext.bufferData(glContext.ARRAY_BUFFER, new Float32Array([
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0, 0,
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width, 0,
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0, height,
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0, height,
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width, 0,
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width, height
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]), glContext.STATIC_DRAW);
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}
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/**
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* Creates shader
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* @param {*} glContext — gl context
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* @param {*} shaderSource — shader code (as returned by a shader generator, for example)
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* @param {*} shaderType — shader type (gl[context].FRAGMENT_SHADER or gl[context].VERTEX_SHADER)
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*/
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compileShader(glContext, shaderSource, shaderType) {
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const shader = glContext.createShader(shaderType);
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// load source and compile shader
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glContext.shaderSource(shader, shaderSource);
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glContext.compileShader(shader);
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// check if shader was compiled successfully
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if (! glContext.getShaderParameter(shader, gl.COMPILE_STATUS)) {
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glContext.deleteShader(shader);
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this.logger.log('error', ['init', 'debug', 'arDetect'], `%c[AardGl::setupShader] <@${this.arid}> Failed to setup shader.`, _ard_console_stop);
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return null;
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}
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return shader;
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}
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/**
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* Creates gl program
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* @param {*} glContext — gl context
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* @param {*} shaders — shaders (previously compiled with setupShader())
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*/
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compileProgram(glContext, shaders) {
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const program = glContext.createProgram();
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for (const shader of shadersr) {
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glContext.attachShader(program, shader);
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}
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glContext.linkProgram(program);
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if (! glContext.getProgramParameter(program, glContext.LINK_STATUS)) {
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glContext.deleteShader(shader);
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this.logger.log('error', ['init', 'debug', 'arDetect'], `%c[AardGl::setupProgram] <@${this.arid}> Failed to setup program.`, _ard_console_stop);
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return null;
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}
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return program;
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}
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//#endregion
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/*
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* --------------------
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* SETUP AND CLEANUP
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* --------------------
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*/
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//#region init and destroy
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init(){
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this.logger.log('info', 'init', `[AardGl::init] <@${this.arid}> Initializing autodetection.`);
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@ -72,6 +279,7 @@ class AardGl {
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// this.debugCanvas.destroy();
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this.stop();
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}
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//#endregion
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setup(cwidth, cheight){
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this.logger.log('info', 'init', `[AardGl::setup] <@${this.arid}> Starting autodetection setup.`);
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@ -212,106 +420,6 @@ class AardGl {
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this.conf.arSetupComplete = true;
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}
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glSetRectangle(glContext, width, height) {
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glContext.bufferData(glContext.ARRAY_BUFFER, new Float32Array([
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0, 0,
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width, 0,
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0, height,
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0, height,
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width, 0,
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width, height
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]), glContext.STATIC_DRAW);
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}
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/**
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* Creates shader
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* @param {*} glContext — gl context
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* @param {*} shaderSource — shader code (as returned by a shader generator, for example)
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* @param {*} shaderType — shader type (gl[context].FRAGMENT_SHADER or gl[context].VERTEX_SHADER)
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*/
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compileShader(glContext, shaderSource, shaderType) {
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const shader = glContext.createShader(shaderType);
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// load source and compile shader
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glContext.shaderSource(shader, shaderSource);
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glContext.compileShader(shader);
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// check if shader was compiled successfully
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if (! glContext.getShaderParameter(shader, gl.COMPILE_STATUS)) {
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glContext.deleteShader(shader);
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this.logger.log('error', ['init', 'debug', 'arDetect'], `%c[AardGl::setupShader] <@${this.arid}> Failed to setup shader.`, _ard_console_stop);
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return null;
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}
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return shader;
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}
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/**
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* Creates gl program
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* @param {*} glContext — gl context
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* @param {*} shaders — shaders (previously compiled with setupShader())
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*/
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compileProgram(glContext, shaders) {
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const program = glContext.createProgram();
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for (const shader of shadersr) {
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glContext.attachShader(program, shader);
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}
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glContext.linkProgram(program);
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if (! glContext.getProgramParameter(program, glContext.LINK_STATUS)) {
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glContext.deleteShader(shader);
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this.logger.log('error', ['init', 'debug', 'arDetect'], `%c[AardGl::setupProgram] <@${this.arid}> Failed to setup program.`, _ard_console_stop);
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return null;
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}
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return program;
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}
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start() {
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this.logger.log('info', 'debug', `"%c[AardGl::start] <@${this.arid}> Starting automatic aspect ratio detection`, _ard_console_start);
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if (this.conf.resizer.lastAr.type === AspectRatio.Automatic) {
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// ensure first autodetection will run in any case
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this.conf.resizer.setLastAr({type: AspectRatio.Automatic, ratio: this.getDefaultAr()});
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}
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// launch main() if it's currently not running:
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this.main();
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// automatic detection starts halted. If halted=false when main first starts, extension won't run
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// this._paused is undefined the first time we run this function, which is effectively the same thing
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// as false. Still, we'll explicitly fix this here.
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this._paused = false;
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this._halted = false;
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this._paused = false;
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}
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unpause() {
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// pause only if we were running before. Don't pause if we aren't running
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// (we are running when _halted is neither true nor undefined)
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if (this._paused && this._halted === false) {
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this._paused = true;
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}
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}
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pause() {
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// pause only if we were running before. Don't pause if we aren't running
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// (we are running when _halted is neither true nor undefined)
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if (this._halted === false) {
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this._paused = true;
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}
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}
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stop(){
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this.logger.log('info', 'debug', `"%c[AardGl::stop] <@${this.arid}> Stopping automatic aspect ratio detection`, _ard_console_stop);
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this._halted = true;
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// this.conf.resizer.setArLastAr();
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}
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async nextFrame() {
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return new Promise(resolve => window.requestAnimationFrame(resolve));
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}
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async main() {
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if (this._paused) {
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// unpause if paused
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@ -328,7 +436,7 @@ class AardGl {
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while (!this._exited && exitedRetries --> 0) {
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this.logger.log('warn', 'debug', `[AardGl::main] <@${this.arid}> We are trying to start another instance of autodetection on current video, but the previous instance hasn't exited yet. Waiting for old instance to exit ...`);
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await this.sleep(this.settings.active.arDetect.timers.tickrate);
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await sleep(this.settings.active.arDetect.timers.tickrate);
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}
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if (!this._exited) {
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this.logger.log('error', 'debug', `[AardGl::main] <@${this.arid}> Previous instance didn't exit in time. Not starting a new one.`);
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@ -380,91 +488,78 @@ class AardGl {
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this._exited = true;
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}
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async sleep(timeout) {
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return new Promise( (resolve, reject) => setTimeout(() => resolve(), timeout));
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}
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frameCheck(){
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if(! this.video){
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this.logger.log('error', 'debug', `%c[AardGl::frameCheck] <@${this.arid}> Video went missing. Destroying current instance of videoData.`);
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this.conf.destroy();
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return;
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}
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canTriggerFrameCheck(lastFrameCheckStartTime) {
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if (this._paused) {
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return false;
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}
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if (this.video.ended || this.video.paused){
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// we slow down if ended or pausing. Detecting is pointless.
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// we don't stop outright in case seeking happens during pause/after video was
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// ended and video gets into 'playing' state again
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return Date.now() - lastFrameCheckStartTime > this.settings.active.arDetect.timers.paused;
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}
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if (this.video.error){
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// če je video pavziran, še vedno skušamo zaznati razmerje stranic - ampak bolj poredko.
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// if the video is paused, we still do autodetection. We just do it less often.
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return Date.now() - lastFrameCheckStartTime > this.settings.active.arDetect.timers.error;
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if (!this.blackframeContext) {
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this.init();
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}
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return Date.now() - lastFrameCheckStartTime > this.settings.active.arDetect.timers.playing;
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}
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var startTime = performance.now();
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let sampleCols = this.sampleCols.slice(0);
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isRunning(){
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return ! (this._halted || this._paused || this._exited);
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}
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//
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// [0] blackframe tests (they also determine whether we need fallback mode)
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//
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try {
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this.blackframeContext.drawImage(this.video, 0, 0, this.blackframeCanvas.width, this.blackframeCanvas.height);
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this.fallbackMode = false;
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} catch (e) {
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this.logger.log('error', 'arDetect', `%c[AardGl::frameCheck] <@${this.arid}> %c[AardGl::frameCheck] can't draw image on canvas. ${this.canDoFallbackMode ? 'Trying canvas.drawWindow instead' : 'Doing nothing as browser doesn\'t support fallback mode.'}`, "color:#000; backgroud:#f51;", e);
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scheduleInitRestart(timeout, force_reset){
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if(! timeout){
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timeout = 100;
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}
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// don't allow more than 1 instance
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if(this.setupTimer){
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clearTimeout(this.setupTimer);
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}
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var ths = this;
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this.setupTimer = setTimeout(function(){
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ths.setupTimer = null;
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try{
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ths.main();
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} catch(e) {
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this.logger('error', 'debug', `[AardGl::scheduleInitRestart] <@${this.arid}> Failed to start main(). Error:`,e);
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// nothing to see here, really, if fallback mode isn't supported by browser
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if (! this.canDoFallbackMode) {
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return;
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}
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if (! this.canvasReadyForDrawWindow()) {
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// this means canvas needs to be resized, so we'll just re-run setup with all those new parameters
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this.stop();
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let newCanvasWidth = window.innerHeight * (this.video.videoWidth / this.video.videoHeight);
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let newCanvasHeight = window.innerHeight;
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if (this.conf.resizer.videoAlignment === VideoAlignment.Center) {
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this.canvasDrawWindowHOffset = Math.round((window.innerWidth - newCanvasWidth) * 0.5);
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} else if (this.conf.resizer.videoAlignment === VideoAlignment.Left) {
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this.canvasDrawWindowHOffset = 0;
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} else {
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this.canvasDrawWindowHOffset = window.innerWidth - newCanvasWidth;
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}
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ths = null;
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},
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timeout
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);
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}
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//#region helper functions (general)
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attachCanvas(canvas){
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if(this.attachedCanvas)
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this.attachedCanvas.remove();
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// todo: place canvas on top of the video instead of random location
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canvas.style.position = "absolute";
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canvas.style.left = "200px";
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canvas.style.top = "1200px";
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canvas.style.zIndex = 10000;
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document.getElementsByTagName("body")[0]
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.appendChild(canvas);
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}
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canvasReadyForDrawWindow(){
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this.logger.log('info', 'debug', `%c[AardGl::canvasReadyForDrawWindow] <@${this.arid}> canvas is ${this.canvas.height === window.innerHeight ? '' : 'NOT '}ready for drawWindow(). Canvas height: ${this.canvas.height}px; window inner height: ${window.innerHeight}px.`)
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return this.canvas.height == window.innerHeight
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}
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|
||||
getTimeout(baseTimeout, startTime){
|
||||
var execTime = (performance.now() - startTime);
|
||||
|
||||
return baseTimeout;
|
||||
}
|
||||
//#endregion
|
||||
|
||||
getDefaultAr() {
|
||||
return this.video.videoWidth / this.video.videoHeight;
|
||||
|
||||
this.setup(newCanvasWidth, newCanvasHeight);
|
||||
|
||||
return;
|
||||
}
|
||||
// if this is the case, we'll first draw on canvas, as we'll need intermediate canvas if we want to get a
|
||||
// smaller sample for blackframe check
|
||||
this.fallbackMode = true;
|
||||
|
||||
try {
|
||||
this.context.drawWindow(window, this.canvasDrawWindowHOffset, 0, this.canvas.width, this.canvas.height, "rgba(0,0,128,1)");
|
||||
} catch (e) {
|
||||
this.logger.log('error', 'arDetect', `%c[AardGl::frameCheck] can't draw image on canvas with fallback mode either. This error is prolly only temporary.`, "color:#000; backgroud:#f51;", e);
|
||||
return; // it's prolly just a fluke, so we do nothing special here
|
||||
}
|
||||
// draw blackframe sample from our main sample:
|
||||
this.blackframeContext.drawImage(this.canvas, this.blackframeCanvas.width, this.blackframeCanvas.height)
|
||||
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] canvas.drawImage seems to have worked`, "color:#000; backgroud:#2f5;");
|
||||
}
|
||||
|
||||
|
||||
this.clearImageData(imageData);
|
||||
}
|
||||
|
||||
/**
|
||||
* -------------------------
|
||||
* DATA PROCESSING HELPERS
|
||||
* -------------------------
|
||||
*/
|
||||
//#region result processing
|
||||
calculateArFromEdges(edges) {
|
||||
// if we don't specify these things, they'll have some default values.
|
||||
if(edges.top === undefined){
|
||||
@ -562,418 +657,10 @@ class AardGl {
|
||||
|
||||
this.conf.resizer.updateAr({type: AspectRatio.Automatic, ratio: trueAr}, {type: AspectRatio.Automatic, ratio: trueAr});
|
||||
}
|
||||
//#endregion
|
||||
//#region data processing / frameCheck helpers
|
||||
|
||||
clearImageData(id) {
|
||||
if (ArrayBuffer.transfer) {
|
||||
ArrayBuffer.transfer(id, 0);
|
||||
}
|
||||
id = undefined;
|
||||
}
|
||||
|
||||
frameCheck(){
|
||||
if(! this.video){
|
||||
this.logger.log('error', 'debug', `%c[AardGl::frameCheck] <@${this.arid}> Video went missing. Destroying current instance of videoData.`);
|
||||
this.conf.destroy();
|
||||
return;
|
||||
}
|
||||
|
||||
if (!this.blackframeContext) {
|
||||
this.init();
|
||||
}
|
||||
|
||||
var startTime = performance.now();
|
||||
let sampleCols = this.sampleCols.slice(0);
|
||||
|
||||
//
|
||||
// [0] blackframe tests (they also determine whether we need fallback mode)
|
||||
//
|
||||
try {
|
||||
this.blackframeContext.drawImage(this.video, 0, 0, this.blackframeCanvas.width, this.blackframeCanvas.height);
|
||||
this.fallbackMode = false;
|
||||
} catch (e) {
|
||||
this.logger.log('error', 'arDetect', `%c[AardGl::frameCheck] <@${this.arid}> %c[AardGl::frameCheck] can't draw image on canvas. ${this.canDoFallbackMode ? 'Trying canvas.drawWindow instead' : 'Doing nothing as browser doesn\'t support fallback mode.'}`, "color:#000; backgroud:#f51;", e);
|
||||
|
||||
// nothing to see here, really, if fallback mode isn't supported by browser
|
||||
if (! this.canDoFallbackMode) {
|
||||
return;
|
||||
}
|
||||
if (! this.canvasReadyForDrawWindow()) {
|
||||
// this means canvas needs to be resized, so we'll just re-run setup with all those new parameters
|
||||
this.stop();
|
||||
|
||||
let newCanvasWidth = window.innerHeight * (this.video.videoWidth / this.video.videoHeight);
|
||||
let newCanvasHeight = window.innerHeight;
|
||||
|
||||
if (this.conf.resizer.videoAlignment === VideoAlignment.Center) {
|
||||
this.canvasDrawWindowHOffset = Math.round((window.innerWidth - newCanvasWidth) * 0.5);
|
||||
} else if (this.conf.resizer.videoAlignment === VideoAlignment.Left) {
|
||||
this.canvasDrawWindowHOffset = 0;
|
||||
} else {
|
||||
this.canvasDrawWindowHOffset = window.innerWidth - newCanvasWidth;
|
||||
}
|
||||
|
||||
this.setup(newCanvasWidth, newCanvasHeight);
|
||||
|
||||
return;
|
||||
}
|
||||
// if this is the case, we'll first draw on canvas, as we'll need intermediate canvas if we want to get a
|
||||
// smaller sample for blackframe check
|
||||
this.fallbackMode = true;
|
||||
|
||||
try {
|
||||
this.context.drawWindow(window, this.canvasDrawWindowHOffset, 0, this.canvas.width, this.canvas.height, "rgba(0,0,128,1)");
|
||||
} catch (e) {
|
||||
this.logger.log('error', 'arDetect', `%c[AardGl::frameCheck] can't draw image on canvas with fallback mode either. This error is prolly only temporary.`, "color:#000; backgroud:#f51;", e);
|
||||
return; // it's prolly just a fluke, so we do nothing special here
|
||||
}
|
||||
// draw blackframe sample from our main sample:
|
||||
this.blackframeContext.drawImage(this.canvas, this.blackframeCanvas.width, this.blackframeCanvas.height)
|
||||
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] canvas.drawImage seems to have worked`, "color:#000; backgroud:#2f5;");
|
||||
}
|
||||
|
||||
const bfanalysis = this.blackframeTest();
|
||||
if (bfanalysis.isBlack) {
|
||||
// we don't do any corrections on frames confirmed black
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] Black frame analysis suggests this frame is black or too dark. Doing nothing.`, "color: #fa3", bfanalysis);
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
|
||||
// if we are in fallback mode, then frame has already been drawn to the main canvas.
|
||||
// if we are in normal mode though, the frame has yet to be drawn
|
||||
if (!this.fallbackMode) {
|
||||
this.context.drawImage(this.video, 0, 0, this.canvas.width, this.canvas.height);
|
||||
}
|
||||
const imageData = this.context.getImageData(0, 0, this.canvas.width, this.canvas.height).data;
|
||||
|
||||
if (! this.fastLetterboxPresenceTest(imageData, sampleCols) ) {
|
||||
// Če ne zaznamo letterboxa, kličemo reset. Lahko, da je bilo razmerje stranic popravljeno na roke. Možno je tudi,
|
||||
// da je letterbox izginil.
|
||||
// If we don't detect letterbox, we reset aspect ratio to aspect ratio of the video file. The aspect ratio could
|
||||
// have been corrected manually. It's also possible that letterbox (that was there before) disappeared.
|
||||
this.conf.resizer.updateAr({type: AspectRatio.Automatic, ratio: this.getDefaultAr()});
|
||||
this.guardLine.reset();
|
||||
this.noLetterboxCanvasReset = true;
|
||||
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] Letterbox not detected in fast test. Letterbox is either gone or we manually corrected aspect ratio. Nothing will be done.`, "color: #fa3");
|
||||
|
||||
this.clearImageData(imageData);
|
||||
return;
|
||||
}
|
||||
|
||||
// Če preverjamo naprej, potem moramo postaviti to vrednost nazaj na 'false'. V nasprotnem primeru se bo
|
||||
// css resetiral enkrat na video/pageload namesto vsakič, ko so za nekaj časa obrobe odstranejene
|
||||
// if we look further we need to reset this value back to false. Otherwise we'll only get CSS reset once
|
||||
// per video/pageload instead of every time letterbox goes away (this can happen more than once per vid)
|
||||
this.noLetterboxCanvasReset = false;
|
||||
|
||||
// poglejmo, če obrežemo preveč.
|
||||
// let's check if we're cropping too much
|
||||
const guardLineOut = this.guardLine.check(imageData, this.fallbackMode);
|
||||
|
||||
// če ni padla nobena izmed funkcij, potem se razmerje stranic ni spremenilo
|
||||
// if both succeed, then aspect ratio hasn't changed.
|
||||
if (!guardLineOut.imageFail && !guardLineOut.blackbarFail) {
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] guardLine tests were successful. (no imagefail and no blackbarfail)\n`, "color: #afa", guardLineOut);
|
||||
this.clearImageData(imageData);
|
||||
return;
|
||||
}
|
||||
|
||||
// drugače nadaljujemo, našemu vzorcu stolpcev pa dodamo tiste stolpce, ki so
|
||||
// kršili blackbar (če obstajajo) ter jih razvrstimo
|
||||
// otherwise we continue. We add blackbar violations to the list of the cols
|
||||
// we'll sample and sort them
|
||||
if (guardLineOut.blackbarFail) {
|
||||
sampleCols.concat(guardLineOut.offenders).sort((a, b) => a > b);
|
||||
}
|
||||
|
||||
// if we're in fallback mode and blackbar test failed, we restore CSS and quit
|
||||
// (since the new letterbox edge isn't present in our sample due to technical
|
||||
// limitations)
|
||||
if (this.fallbackMode && guardLineOut.blackbarFail) {
|
||||
this.conf.resizer.setAr({type: AspectRatio.Automatic, ratio: this.getDefaultAr()});
|
||||
this.guardLine.reset();
|
||||
this.noLetterboxCanvasReset = true;
|
||||
|
||||
this.clearImageData(imageData);
|
||||
return;
|
||||
}
|
||||
|
||||
// će se razmerje stranic spreminja iz ožjega na širšega, potem najprej poglejmo za prisotnostjo navpičnih črnih obrob.
|
||||
// če so prisotne navpične obrobe tudi na levi in desni strani, potlej obstaja možnost, da gre za logo na črnem ozadju.
|
||||
// v tem primeru obstaja nevarnost, da porežemo preveč. Ker obstaja dovolj velika možnost, da bi porezali preveč, rajši
|
||||
// ne naredimo ničesar.
|
||||
//
|
||||
// če je pillarbox zaznan v primeru spremembe iz ožjega na širše razmerje stranice, razmerje povrnemo na privzeto vrednost.
|
||||
//
|
||||
// If aspect ratio changes from narrower to wider, we first check for presence of pillarbox. Presence of pillarbox indicates
|
||||
// a chance of a logo on black background. We could cut easily cut too much. Because there's a somewhat significant chance
|
||||
// that we will cut too much, we rather avoid doing anything at all. There's gonna be a next chance.
|
||||
try{
|
||||
if(guardLineOut.blackbarFail || guardLineOut.imageFail){
|
||||
if(this.edgeDetector.findBars(imageData, null, EdgeDetectPrimaryDirection.HORIZONTAL).status === 'ar_known'){
|
||||
|
||||
|
||||
if(guardLineOut.blackbarFail){
|
||||
this.logger.log('info', 'arDetect', `[AardGl::frameCheck] Detected blackbar violation and pillarbox. Resetting to default aspect ratio.`);
|
||||
this.conf.resizer.setAr({type: AspectRatio.Automatic, ratio: this.getDefaultAr()});
|
||||
this.guardLine.reset();
|
||||
}
|
||||
|
||||
triggerTimeout = this.getTimeout(baseTimeout, startTime);
|
||||
this.scheduleFrameCheck(triggerTimeout);
|
||||
this.clearImageData(imageData);
|
||||
return;
|
||||
}
|
||||
}
|
||||
} catch(e) {
|
||||
this.logger.log('info', 'arDetect', `[AardGl::frameCheck] something went wrong while checking for pillarbox. Error:\n`, e);
|
||||
}
|
||||
|
||||
// pa poglejmo, kje se končajo črne letvice na vrhu in na dnu videa.
|
||||
// let's see where black bars end.
|
||||
this.sampleCols_current = sampleCols.length;
|
||||
|
||||
// blackSamples -> {res_top, res_bottom}
|
||||
|
||||
var edgePost = this.edgeDetector.findBars(imageData, sampleCols, EdgeDetectPrimaryDirection.VERTICAL, EdgeDetectQuality.IMPROVED, guardLineOut, bfanalysis);
|
||||
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] edgeDetector returned this\n`, "color: #aaf", edgePost);
|
||||
|
||||
if (edgePost.status !== EdgeStatus.AR_KNOWN){
|
||||
// rob ni bil zaznan, zato ne naredimo ničesar.
|
||||
// no edge was detected. Let's leave things as they were
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] Edge wasn't detected with findBars`, "color: #fa3", edgePost, "EdgeStatus.AR_KNOWN:", EdgeStatus.AR_KNOWN);
|
||||
|
||||
this.clearImageData(imageData);
|
||||
return;
|
||||
}
|
||||
|
||||
var newAr = this.calculateArFromEdges(edgePost);
|
||||
|
||||
this.logger.log('info', 'arDetect_verbose', `%c[AardGl::frameCheck] Triggering aspect ration change! new ar: ${newAr}`, "color: #aaf");
|
||||
|
||||
// we also know edges for guardline, so set them.
|
||||
// we need to be mindful of fallbackMode though
|
||||
// if edges are okay and not invalid, we also
|
||||
// allow automatic aspect ratio correction. If edges
|
||||
// are bogus, we remain aspect ratio unchanged.
|
||||
try {
|
||||
if (!this.fallbackMode) {
|
||||
// throws error if top/bottom are invalid
|
||||
this.guardLine.setBlackbar({top: edgePost.guardLineTop, bottom: edgePost.guardLineBottom});
|
||||
} else {
|
||||
if (this.conf.player.dimensions){
|
||||
this.guardLine.setBlackbarManual({
|
||||
top: this.settings.active.arDetect.fallbackMode.noTriggerZonePx,
|
||||
bottom: this.conf.player.dimensions.height - this.settings.active.arDetect.fallbackMode.noTriggerZonePx - 1
|
||||
},{
|
||||
top: edgePost.guardLineTop + this.settings.active.arDetect.guardLine.edgeTolerancePx,
|
||||
bottom: edgePost.guardLineBottom - this.settings.active.arDetect.guardLine.edgeTolerancePx
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
this.processAr(newAr);
|
||||
} catch (e) {
|
||||
// edges weren't gucci, so we'll just reset
|
||||
// the aspect ratio to defaults
|
||||
this.logger.log('error', 'arDetect', `%c[AardGl::frameCheck] There was a problem setting blackbar. Doing nothing. Error:`, e);
|
||||
|
||||
this.guardline.reset();
|
||||
// WE DO NOT RESET ASPECT RATIO HERE IN CASE OF PROBLEMS, CAUSES UNWARRANTED RESETS:
|
||||
// (eg. here: https://www.youtube.com/watch?v=nw5Z93Yt-UQ&t=410)
|
||||
//
|
||||
// this.conf.resizer.setAr({type: AspectRatio.Automatic, ratio: this.getDefaultAr()});
|
||||
}
|
||||
|
||||
this.clearImageData(imageData);
|
||||
}
|
||||
|
||||
resetBlackLevel(){
|
||||
this.blackLevel = this.settings.active.arDetect.blackbar.blackLevel;
|
||||
}
|
||||
|
||||
blackLevelTest_full() {
|
||||
|
||||
}
|
||||
|
||||
blackframeTest() {
|
||||
if (this.blackLevel === undefined) {
|
||||
this.logger.log('info', 'arDetect_verbose', "[AardGl::blackframeTest] black level undefined, resetting");
|
||||
this.resetBlackLevel();
|
||||
}
|
||||
|
||||
const rows = this.blackframeCanvas.height;
|
||||
const cols = this.blackframeCanvas.width;
|
||||
const pixels = rows * cols;
|
||||
let cumulative_r = 0, cumulative_g = 0, cumulative_b = 0;
|
||||
let max_r = 0, max_g = 0, max_b = 0;
|
||||
let avg_r, avg_g, avg_b;
|
||||
let var_r = 0, var_g = 0, var_b = 0;
|
||||
|
||||
let pixelMax = 0;
|
||||
let cumulativeValue = 0;
|
||||
let blackPixelCount = 0;
|
||||
const bfImageData = this.blackframeContext.getImageData(0, 0, cols, rows).data;
|
||||
const blackTreshold = this.blackLevel + this.settings.active.arDetect.blackbar.frameTreshold;
|
||||
|
||||
|
||||
// we do some recon for letterbox and pillarbox. While this can't determine whether letterbox/pillarbox exists
|
||||
// with sufficient level of certainty due to small sample resolution, it can still give us some hints for later
|
||||
let rowMax = new Array(rows).fill(0);
|
||||
let colMax = new Array(cols).fill(0);
|
||||
|
||||
let r, c;
|
||||
|
||||
|
||||
for (let i = 0; i < bfImageData.length; i+= 4) {
|
||||
pixelMax = Math.max(bfImageData[i], bfImageData[i+1], bfImageData[i+2]);
|
||||
bfImageData[i+3] = pixelMax;
|
||||
|
||||
if (pixelMax < blackTreshold) {
|
||||
if (pixelMax < this.blackLevel) {
|
||||
this.blackLevel = pixelMax;
|
||||
}
|
||||
blackPixelCount++;
|
||||
} else {
|
||||
cumulativeValue += pixelMax;
|
||||
cumulative_r += bfImageData[i];
|
||||
cumulative_g += bfImageData[i+1];
|
||||
cumulative_b += bfImageData[i+2];
|
||||
|
||||
max_r = max_r > bfImageData[i] ? max_r : bfImageData[i];
|
||||
max_g = max_g > bfImageData[i+1] ? max_g : bfImageData[i+1];
|
||||
max_b = max_b > bfImageData[i+2] ? max_b : bfImageData[i+2];
|
||||
}
|
||||
|
||||
r = ~~(i/rows);
|
||||
c = i % cols;
|
||||
|
||||
if (pixelMax > rowMax[r]) {
|
||||
rowMax[r] = pixelMax;
|
||||
}
|
||||
if (pixelMax > colMax[c]) {
|
||||
colMax[c] = colMax;
|
||||
}
|
||||
}
|
||||
|
||||
max_r = 1 / (max_r || 1);
|
||||
max_g = 1 / (max_g || 1);
|
||||
max_b = 1 / (max_b || 1);
|
||||
|
||||
const imagePixels = pixels - blackPixelCount;
|
||||
// calculate averages and normalize them
|
||||
avg_r = (cumulative_r / imagePixels) * max_r;
|
||||
avg_g = (cumulative_g / imagePixels) * max_g;
|
||||
avg_b = (cumulative_b / imagePixels) * max_b;
|
||||
|
||||
// second pass for color variance
|
||||
for (let i = 0; i < bfImageData.length; i+= 4) {
|
||||
if (bfImageData[i+3] >= this.blackLevel) {
|
||||
var_r += Math.abs(avg_r - bfImageData[i] * max_r);
|
||||
var_g += Math.abs(avg_g - bfImageData[i+1] * max_g);
|
||||
var_b += Math.abs(avg_b - bfImageData[i+1] * max_b);
|
||||
}
|
||||
}
|
||||
|
||||
const hasSufficientVariance = Math.abs(var_r - var_g) / Math.max(var_r, var_g, 1) > this.settings.active.arDetect.blackframe.sufficientColorVariance
|
||||
|| Math.abs(var_r - var_b) / Math.max(var_r, var_b, 1) > this.settings.active.arDetect.blackframe.sufficientColorVariance
|
||||
|| Math.abs(var_b - var_g) / Math.max(var_b, var_g, 1) > this.settings.active.arDetect.blackframe.sufficientColorVariance
|
||||
|
||||
let isBlack = (blackPixelCount/(cols * rows) > this.settings.active.arDetect.blackframe.blackPixelsCondition);
|
||||
|
||||
if (! isBlack) {
|
||||
if (hasSufficientVariance) {
|
||||
isBlack = cumulativeValue < this.settings.active.arDetect.blackframe.cumulativeThresholdLax;
|
||||
} else {
|
||||
isBlack = cumulativeValue < this.settings.active.arDetect.blackframe.cumulativeThresholdStrict;
|
||||
}
|
||||
}
|
||||
|
||||
if (Debug.debug) {
|
||||
return {
|
||||
isBlack: isBlack,
|
||||
blackPixelCount: blackPixelCount,
|
||||
blackPixelRatio: (blackPixelCount/(cols * rows)),
|
||||
cumulativeValue: cumulativeValue,
|
||||
hasSufficientVariance: hasSufficientVariance,
|
||||
blackLevel: this.blackLevel,
|
||||
variances: {
|
||||
raw: {
|
||||
r: var_r, g: var_g, b: var_b
|
||||
},
|
||||
relative: {
|
||||
rg: Math.abs(var_r - var_g) / Math.max(var_r, var_g, 1),
|
||||
rb: Math.abs(var_r - var_b) / Math.max(var_r, var_b, 1),
|
||||
gb: Math.abs(var_b - var_g) / Math.max(var_b, var_g, 1),
|
||||
},
|
||||
relativePercent: {
|
||||
rg: Math.abs(var_r - var_g) / Math.max(var_r, var_g, 1) / this.settings.active.arDetect.blackframe.sufficientColorVariance,
|
||||
rb: Math.abs(var_r - var_b) / Math.max(var_r, var_b, 1) / this.settings.active.arDetect.blackframe.sufficientColorVariance,
|
||||
gb: Math.abs(var_b - var_g) / Math.max(var_b, var_g, 1) / this.settings.active.arDetect.blackframe.sufficientColorVariance,
|
||||
},
|
||||
varianceLimit: this.settings.active.arDetect.blackframe.sufficientColorVariance,
|
||||
},
|
||||
cumulativeValuePercent: cumulativeValue / (hasSufficientVariance ? this.settings.active.arDetect.blackframe.cumulativeThresholdLax : this.settings.active.arDetect.blackframe.cumulativeThresholdStrict),
|
||||
rowMax: rowMax,
|
||||
colMax: colMax,
|
||||
};
|
||||
}
|
||||
return {
|
||||
isBlack: isBlack,
|
||||
rowMax: rowMax,
|
||||
colMax: colMax,
|
||||
};
|
||||
}
|
||||
|
||||
fastLetterboxPresenceTest(imageData, sampleCols) {
|
||||
// fast test to see if aspect ratio is correct.
|
||||
// returns 'true' if presence of letterbox is possible.
|
||||
// returns 'false' if we found a non-black edge pixel.
|
||||
|
||||
// If we detect anything darker than blackLevel, we modify blackLevel to the new lowest value
|
||||
const rowOffset = this.canvas.width * (this.canvas.height - 1);
|
||||
let currentMin = 255, currentMax = 0, colOffset_r, colOffset_g, colOffset_b, colOffset_rb, colOffset_gb, colOffset_bb, blthreshold = this.settings.active.arDetect.blackbar.threshold;
|
||||
|
||||
// detect black level. if currentMax comes above blackbar + blackbar threshold, we know we aren't letterboxed
|
||||
|
||||
for (var i = 0; i < sampleCols.length; ++i){
|
||||
colOffset_r = sampleCols[i] << 2;
|
||||
colOffset_g = colOffset_r + 1;
|
||||
colOffset_b = colOffset_r + 2;
|
||||
colOffset_rb = colOffset_r + rowOffset;
|
||||
colOffset_gb = colOffset_g + rowOffset;
|
||||
colOffset_bb = colOffset_b + rowOffset;
|
||||
|
||||
currentMax = Math.max(
|
||||
imageData[colOffset_r], imageData[colOffset_g], imageData[colOffset_b],
|
||||
// imageData[colOffset_rb], imageData[colOffset_gb], imageData[colOffset_bb],
|
||||
currentMax
|
||||
);
|
||||
|
||||
if (currentMax > this.blackLevel + blthreshold) {
|
||||
// we search no further
|
||||
if (currentMin < this.blackLevel) {
|
||||
this.blackLevel = currentMin;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
currentMin = Math.min(
|
||||
currentMax,
|
||||
currentMin
|
||||
);
|
||||
}
|
||||
|
||||
if (currentMin < this.blackLevel)
|
||||
this.blackLevel = currentMin
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
//#endregion
|
||||
}
|
||||
|
||||
var _ard_console_stop = "background: #000; color: #f41";
|
||||
|
||||
Loading…
Reference in New Issue
Block a user