@zoom/videosdk/dist/lib/video_processor.min.js

Zoom Web Video SDK

(()=>{"use strict";var e={d:(t,i)=>{for(var n in i)e.o(i,n)&&!e.o(t,n)&&Object.defineProperty(t,n,{enumerable:!0,get:i[n]})},o:(e,t)=>Object.prototype.hasOwnProperty.call(e,t),r:e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})}},t={};function i(e){return i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},i(e)}function n(e,t,n){return(t=function(e){var t=function(e){if("object"!=i(e)||!e)return e;var t=e[Symbol.toPrimitive];if(void 0!==t){var n=t.call(e,"string");if("object"!=i(n))return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return String(e)}(e);return"symbol"==i(t)?t:t+""}(t))in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}e.r(t),e.d(t,{CROPPING_SHAPE:()=>r,RENDERER_TYPE:()=>a});const a={_2D:0,WEBGL:1,WEBGL_2:2,WEBGPU:3},r={CIRCLE:0,ELLIPSE:1};function s(e,t,i){o(e,t),t.set(e,i)}function o(e,t){if(t.has(e))throw new TypeError("Cannot initialize the same private elements twice on an object")}function l(e,t){return e.get(h(e,t))}function c(e,t,i){return e.set(h(e,t),i),i}function h(e,t,i){if("function"==typeof e?e===t:e.has(t))return arguments.length<3?t:i;throw new TypeError("Private element is not present on this object")}var u=new WeakMap,d=new WeakMap,p=new WeakMap,E=new WeakMap,m=new WeakMap,R=new WeakMap,f=new WeakMap,_=new WeakMap,v=new WeakMap,T=new WeakMap,g=new WeakMap,S=new WeakMap,C=new WeakMap,P=new WeakMap,A=new WeakMap,O=new WeakSet;function w(e,t){e?t===a._2D?h(O,this,L).call(this,e):t===a.WEBGL?h(O,this,y).call(this,e):t===a.WEBGL_2?h(O,this,b).call(this,e):t===a.WEBGPU?h(O,this,I).call(this,e):h(O,this,y).call(this,e):console.error("DynamicMaskRenderDisplay#initContext() cannot initialize context due to null context")}function y(e){c(p,this,h(O,this,F).call(this,e,e.VERTEX_SHADER,"\n    attribute vec2 aPosition;\n    attribute vec2 aTexCoord;\n    varying vec2 vTexCoord;\n    void main() {\n      gl_Position = vec4(aPosition.x, -aPosition.y, 0.0, 1.0);\n      vTexCoord = aTexCoord;\n    }\n")),c(E,this,h(O,this,F).call(this,e,e.FRAGMENT_SHADER,"\n    precision mediump float;\n    const int SHAPE_CIRCLE = 0;\n    const int SHAPE_ELLIPSE = 1;\n    varying vec2 vTexCoord;\n    uniform sampler2D uVideoTexture;\n    uniform sampler2D uMaskTexture;\n    uniform vec4 uEllipses[10];\n    uniform float uAngles[10]; \n    uniform int uEllipseCount;\n    uniform int uCroppingShape;\n    uniform float uAspectRatio;\n    uniform float uScaleFactor;\n    uniform int uZoomVideo;\n\n    vec2 applyZoom(vec2 uv, vec2 center, float scaleFactor) {\n        return center + (uv - center) / scaleFactor;\n    }\n\n    void main() {\n        vec4 maskColor = texture2D(uMaskTexture, vTexCoord);\n        vec2 videoUV = vTexCoord;\n        bool inShape = false;\n        bool isZoomVideo = uZoomVideo == 1;\n\n        if (uEllipseCount > 0) {\n            for (int i = 0; i < 10; i++) {\n                if (i >= uEllipseCount) break;\n\n                vec2 ellipseCenter = uEllipses[i].xy;\n                float angle = radians(uAngles[i]);\n                float condition = 0.0;\n                vec2 ellipseRadii;\n\n                if (uCroppingShape == SHAPE_CIRCLE) {\n                    // Circle\n                    float minRadii = min(uEllipses[i].z * uScaleFactor, uEllipses[i].w * uScaleFactor);\n                    ellipseRadii = vec2(minRadii, minRadii);\n                    vec2 pos = vec2(vTexCoord.x, vTexCoord.y / uAspectRatio) - vec2(ellipseCenter.x, ellipseCenter.y / uAspectRatio);\n\n                    condition = dot(pos, pos) / (ellipseRadii.x * ellipseRadii.x);\n                    if (isZoomVideo && condition <= 1.0) {\n                        videoUV = applyZoom(videoUV, ellipseCenter, uScaleFactor);\n                    }\n                } else if (uCroppingShape == SHAPE_ELLIPSE) {\n                    // Ellipse\n                    ellipseRadii = uEllipses[i].zw * uScaleFactor;\n                    vec2 pos = vTexCoord - ellipseCenter;\n\n                    // Rotate position for ellipse calculation\n                    vec2 rotatedPos;\n                    rotatedPos.x = pos.x * cos(angle) + pos.y * sin(angle);\n                    rotatedPos.y = -pos.x * sin(angle) + pos.y * cos(angle);\n\n                    condition = (rotatedPos.x * rotatedPos.x) / (ellipseRadii.x * ellipseRadii.x) +\n                                (rotatedPos.y * rotatedPos.y) / (ellipseRadii.y * ellipseRadii.y);\n\n                    if (isZoomVideo && condition <= 1.0) {\n                        videoUV = applyZoom(videoUV, ellipseCenter, uScaleFactor);\n                    }\n                }\n\n                if (condition <= 1.0) {\n                    inShape = true;\n                    break;\n                }\n            }\n        }\n\n        // Output color based on whether inShape is true\n        gl_FragColor = inShape ? texture2D(uVideoTexture, videoUV) : maskColor;\n    }\n")),c(m,this,h(O,this,M).call(this,e,l(p,this),l(E,this)));const t=new Float32Array([-1,-1,0,0,1,-1,1,0,-1,1,0,1,-1,1,0,1,1,-1,1,0,1,1,1,1]),i=e.createBuffer();e.bindBuffer(e.ARRAY_BUFFER,i),e.bufferData(e.ARRAY_BUFFER,t,e.STATIC_DRAW);const n=e.getAttribLocation(l(m,this),"aPosition");e.vertexAttribPointer(n,2,e.FLOAT,!1,16,0),e.enableVertexAttribArray(n);const a=e.getAttribLocation(l(m,this),"aTexCoord");e.vertexAttribPointer(a,2,e.FLOAT,!1,16,8),e.enableVertexAttribArray(a),c(R,this,e.createTexture()),c(f,this,e.createTexture())}function b(e){h(O,this,y).call(this,e)}function I(e){}function L(e){}function F(e,t,i){const n=e.createShader(t);return e.shaderSource(n,i),e.compileShader(n),e.getShaderParameter(n,e.COMPILE_STATUS)?n:(console.error("Error compiling shader:",e.getShaderInfoLog(n)),e.deleteShader(n),null)}function M(e,t,i){const n=e.createProgram();return e.attachShader(n,t),e.attachShader(n,i),e.linkProgram(n),e.getProgramParameter(n,e.LINK_STATUS)||(console.error("Error linking program:",e.getProgramInfoLog(n)),e.deleteProgram(n)),e.useProgram(n),n}function k(e){let t=l(d,this);t&&e&&(l(f,this)||c(f,this,t.createTexture()),t.bindTexture(t.TEXTURE_2D,l(f,this)),t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,e),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.LINEAR),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.LINEAR),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE))}function x(e,t){let i=l(d,this),n=l(m,this);if(!i||!n)return;i.viewport(0,0,l(u,this).width,l(u,this).height),i.bindTexture(i.TEXTURE_2D,l(R,this)),i.texImage2D(i.TEXTURE_2D,0,i.RGBA,i.RGBA,i.UNSIGNED_BYTE,e),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_MIN_FILTER,i.LINEAR),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_MAG_FILTER,i.LINEAR),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_WRAP_S,i.CLAMP_TO_EDGE),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_WRAP_T,i.CLAMP_TO_EDGE),i.clearColor(0,0,0,1),i.clear(i.COLOR_BUFFER_BIT),i.activeTexture(i.TEXTURE0),i.bindTexture(i.TEXTURE_2D,l(R,this)),i.uniform1i(i.getUniformLocation(n,"uVideoTexture"),0),i.activeTexture(i.TEXTURE1),i.bindTexture(i.TEXTURE_2D,l(f,this)),i.uniform1i(i.getUniformLocation(n,"uMaskTexture"),1);const a=t.ellipses.length;if(a>0){const e=new Float32Array(t.ellipses.flat());let a;a=l(P,this)?new Float32Array(t.angles):new Float32Array(t.angles.length).fill(0),i.uniform4fv(i.getUniformLocation(n,"uEllipses"),e),i.uniform1fv(i.getUniformLocation(n,"uAngles"),a)}i.uniform1i(i.getUniformLocation(n,"uEllipseCount"),a),i.uniform1i(i.getUniformLocation(n,"uCroppingShape"),l(g,this)),i.uniform1f(i.getUniformLocation(n,"uAspectRatio"),l(S,this)),i.uniform1f(i.getUniformLocation(n,"uScaleFactor"),l(C,this));let r=0;l(A,this)&&(r=1),i.uniform1i(i.getUniformLocation(n,"uZoomVideo"),r),i.drawArrays(i.TRIANGLES,0,6)}function D(e,t,i){let n=l(d,this);if(!n||!l(u,this))return void console.error("Canvas context or canvas not initialized");const a=l(u,this).width,s=l(u,this).height;n.drawImage(e,0,0,a,s),n.drawImage(t,0,0,a,s),i&&i.ellipses.length>0&&i.ellipses.forEach((t=>{const i=t[0],o=t[1],c=t[2],h=t[3];if(n.save(),n.beginPath(),l(g,this)==r.ELLIPSE)n.ellipse(i,o,c,h,0,0,2*Math.PI);else if(l(g,this)==r.CIRCLE){let e=Math.min(c,h)*l(C,this);n.arc(i,o,e,0,360)}n.clip(),n.drawImage(e,0,0,a,s),n.restore()}))}function U(e){e===r.CIRCLE?c(g,this,r.CIRCLE):(e===r.ELLIPSE||console.error("updateCroppingShape() unsupported cropping shape! 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H(e,t){if(t.has(e))throw new TypeError("Cannot initialize the same private elements twice on an object")}function X(e,t,i){return e.set(q(e,t),i),i}function j(e,t){return e.get(q(e,t))}function q(e,t,i){if("function"==typeof e?e===t:e.has(t))return arguments.length<3?t:i;throw new TypeError("Private element is not present on this object")}var z=new WeakMap,Z=new WeakMap,Y=new WeakSet;function K(e,t,i,n){let r=[],s=[];if(e.length<=2)for(let p of e){var o,l;const[e,E,m]=p.keypoints,R={x:(E.x+e.x)/2,y:(E.y+e.y)/2},f=Math.atan2(R.y-E.y,R.x-E.x),_={x:(R.x+m.x)/2,y:(R.y+m.y)/2};if(null!==(o=p.boundingBox)&&void 0!==o&&o.width&&null!==(l=p.boundingBox)&&void 0!==l&&l.height){let e=0,o=0,l=0,E=0;var c,h,u,d;n==a._2D?(e=_.x*t,o=_.y*i,l=(null===(c=p.boundingBox)||void 0===c?void 0:c.width)/2,E=(null===(h=p.boundingBox)||void 0===h?void 0:h.height)/1.5):(e=_.x,o=_.y,l=(null===(u=p.boundingBox)||void 0===u?void 0:u.width)/2/t,E=(null===(d=p.boundingBox)||void 0===d?void 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ne,ae,re,se;!function(e){e.ADD_VIDEO_PORT="add_video_port",e.ADD_SHADOW_PORT="add_shadow_port",e.ADD_VIDEO_PROCESSOR="add_video_processor",e.PROCESSOR_READY="processor_ready",e.PROCESSOR_ERROR="processor_error"}(ne||(ne={})),function(e){e.ADD_SHARE_PORT="add_share_port",e.ADD_SHADOW_PORT="add_shadow_port",e.ADD_SHARE_PROCESSOR="add_share_processor",e.ADD_SHARE_ENCODE_PORT="add_share_encode_port",e.PROCESSOR_READY="processor_ready",e.PROCESSOR_ERROR="processor_error"}(ae||(ae={})),function(e){e.INIT_PROCESSOR="init_processor",e.UNINIT_PROCESSOR="uninit_processor",e.INIT_OUTPUT_CANVAS="init_output_canvas",e.OUTPUT_WRITABLE_STREAM="output_writable_stream",e.INPUT_READABLE_STREAM="input_readable_stream",e.FRAME_DATA="frame_data",e.START_REQUEST_FRAME="start_request_frame",e.STOP_REQUEST_FRAME="stop_request_frame",e.REQUEST_FRAME="request_frame",e.FRAME_CALLBACK="frame_callback",e.RESOLUTION_CHANGE="RESOLUTION_CHANGE",e.PROCESSOR_WORKER_ERROR="PROCESSOR_WORKER_ERROR",e.PROCESSOR_STOP_COMPLETE="PROCESSOR_STOP_COMPLETE"}(re||(re={})),se||(se={});let oe=!1;const le=new Map,ce=new Map,he=new Map;function ue(e,t){le.set(e,t)}function de(e){let t;"string"==typeof e?t=e:e instanceof ErrorEvent?t=e.error:e instanceof PromiseRejectionEvent&&(t=e.reason),self.postMessage({cmd:re.PROCESSOR_WORKER_ERROR,data:t})}self.addEventListener("error",de),self.addEventListener("unhandledrejection",de);class pe{constructor(e,t){this.port=e,this.options=t,this.getOutput=()=>null}onInit(){}onUninit(){}processFrame(e,t){throw new Error("please implement the processFrame method")}}class Ee{constructor(e,t,i){n(this,"requestFrame",(e=>()=>{this.frameReader.read().then((t=>{let{value:i,done:n}=t;n?(clearTimeout(this.readFrameTimer),this.readFrameTimer=0):(this.updateOutputCanvas(i),this.processFrame(i),this.readFrameTimer=setTimeout(this.requestFrame(e),1e3/e.data.frameRate-4))})).catch((()=>{clearTimeout(this.readFrameTimer),this.readFrameTimer=0}))})),n(this,"frameCallback",(e=>{const 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re.START_REQUEST_FRAME:this.VideoFrameNeeded=!!t.VideoFrameNeeded,this.tickInWorker=!0,this.frameReader?this.requestFrame({data:t})(this.port):this.requestFrameInterval||(this.requestFrameInterval=setInterval((()=>{this.port.postMessage({cmd:re.REQUEST_FRAME})}),1e3/t.frameRate-4));break;case re.STOP_REQUEST_FRAME:this.tickInWorker=!1,this.requestFrameInterval&&(clearInterval(this.requestFrameInterval),this.requestFrameInterval=0),this.readFrameTimer&&(clearTimeout(this.readFrameTimer),this.readFrameTimer=0),null===(n=this.frameReader)||void 0===n||null===(a=n.cancel)||void 0===a||a.call(n)}}updateOutputCanvas(e){this.outPutCanvas.width!==e.visibleRect.width&&(this.outPutCanvas.width=e.visibleRect.width),this.outPutCanvas.height!==e.visibleRect.height&&(this.outPutCanvas.height=e.visibleRect.height)}checkAndCopyBack(e){if(this.VideoFrameNeeded){const t=this.generateVideoFrame(e);this.frameCallback(t)}}generateVideoFrame(e){return new VideoFrame(e,{timestamp:1e3*performance.now()})}startHealthCheck(){this.pHealthCheckInterval||(this.pHealthCheckInterval=setInterval((()=>{de("VPCFP:".concat(this.cVideoFrameCount,"-").concat(this.fVideoFrameCount,"-").concat(this.pVideoFrameCount))}),1e4))}stopHealthCheck(){clearInterval(this.pHealthCheckInterval),this.pHealthCheckInterval=0}destroy(){var e,t;null===(e=this.frameReader)||void 0===e||e.cancel(),null===(t=this.frameWriter)||void 0===t||t.close()}}const me=new Map;self.addEventListener("message",(function(e){const i=e.data;switch(i.command){case ne.ADD_VIDEO_PROCESSOR:oe||((a=self).registerProcessor=ue,a.VideoProcessor=pe,a.ZoomUtils={RenderEngine:ie,RenderEngineConst:t},oe=!0);try{if(self,importScripts(i.url),i.port.start(),!ce.has(i.name)){const e=le.get(i.name);e&&ce.set(i.name,new e(i.port,i.options))}self.postMessage({cmd:ne.PROCESSOR_READY,name:i.name})}catch(e){console.error(e),self.postMessage({cmd:ne.PROCESSOR_ERROR,name:i.name})}break;case ne.ADD_VIDEO_PORT:(n=i.data).start(),n.addEventListener("message",(e=>{const{cmd:t,processorName:i}=e.data;if(me.get(i)||t===re.UNINIT_PROCESSOR||me.set(i,new Ee(n,ce.get(i),i)),t===re.INIT_PROCESSOR){const e=me.get(i);e.startHealthCheck(),e.outputPromise.then((()=>{var t;ce.get(i).getOutput=()=>e.outPutCanvas,null===(t=ce.get(i))||void 0===t||t.onInit()}))}else if(t===re.UNINIT_PROCESSOR){var a;null===(a=ce.get(i))||void 0===a||a.onUninit();const e=me.get(i);e.stopHealthCheck(),e.destroy(),me.delete(i)}else{var r;i&&(null===(r=me.get(i))||void 0===r||r.onMessage(t,e.data))}}));break;case ne.ADD_SHADOW_PORT:{const e=i.data;e.start(),e.addEventListener("message",(t=>{const{cmd:i,processorName:n}=t.data;i===re.INIT_PROCESSOR?he.set(n,e):i===re.UNINIT_PROCESSOR&&he.delete(n)}))}}var n,a}))})();
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