diff --git a/web/dist/vap.js b/web/dist/vap.js
index 45556aa2..f136543c 100644
--- a/web/dist/vap.js
+++ b/web/dist/vap.js
@@ -1922,7 +1922,7 @@
         var _this2 = this;
 
         var timePoint = info && info.mediaTime >= 0 ? info.mediaTime : this.video.currentTime;
-        var frame = Math.round(timePoint * this.options.fps) + this.options.offset;
+        var frame = info && info.presentedFrames > 0 ? info.presentedFrames - 1 : Math.round(timePoint * this.options.fps) + this.options.offset;
         var frameCbs = this.events['frame'] || [];
         frameCbs.forEach(function (cb) {
           cb(frame + 1, timePoint);
@@ -1998,8 +1998,9 @@
 
         if (canvas) {
           canvas.parentNode && canvas.parentNode.removeChild(canvas);
-        } // glUtil.cleanWebGL(gl, this.shaders, this.program, this.textures, this.buffers)
+        }
 
+        gl.clear(gl.COLOR_BUFFER_BIT); // glUtil.cleanWebGL(gl, this.shaders, this.program, this.textures, this.buffers)
 
         get(getPrototypeOf$1(WebglRenderVap.prototype), "destroy", this).call(this);
 
diff --git a/web/dist/vap.min.js b/web/dist/vap.min.js
index 48b0fbc0..06f712bf 100644
--- a/web/dist/vap.min.js
+++ b/web/dist/vap.min.js
@@ -1 +1 @@
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s?e:new s(function(t){t(e)})).then(n,o)}i((c=c.apply(t,a||[])).next())})}var T=t(function(e){function r(t){return"function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?e.exports=r=function(t){return typeof t}:e.exports=r=function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},r(t)}e.exports=r}),E=function(){function r(t,e){c(this,r),this.config=t||{},this.headData=e,this.frame=[],this.textureMap={}}return h(r,[{key:"init",value:function(){return w(this,void 0,void 0,s.mark(function t(){return s.wrap(function(t){for(;;)switch(t.prev=t.next){case 0:if(this.initCanvas(),/\/\/[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]\.json$/.test(this.config))return t.next=4,this.getConfigBySrc(this.config);t.next=5;break;case 4:this.config=t.sent;case 5:return t.next=7,this.parseSrc(this.config);case 7:return this.canvas.parentNode.removeChild(this.canvas),this.frame=this.config.frame||[],t.abrupt("return",this);case 10:case"end":return t.stop()}},t,this)}))}},{key:"initCanvas",value:function(){var t=document.createElement("canvas"),e=t.getContext("2d");t.style.display="none",document.body.appendChild(t),this.ctx=e,this.canvas=t}},{key:"loadImg",value:function(n){return new Promise(function(t,e){var r=new Image;r.crossOrigin="anonymous",r.onload=function(){t(this)},r.onerror=function(t){e(new Error("frame 资源加载失败:"+n))},r.src=n})}},{key:"parseSrc",value:function(t){var r=this,n=this.srcData={};return Promise.all((t.src||[]).map(function(e){return w(r,void 0,void 0,s.mark(function t(){var r=this;return s.wrap(function(t){for(;;)switch(t.prev=t.next){case 0:if(e.img=null,this.headData[e.srcTag.slice(1,e.srcTag.length-1)]||this.headData[e.srcTag]){t.next=5;break}t.next=22;break;case 5:if("txt"!==e.srcType){t.next=11;break}this.headData.fontStyle&&!e.fontStyle&&(e.fontStyle=this.headData.fontStyle),e.textStr=this.headData[e.srcTag]||e.srcTag.replace(/\[(.*)\]/,function(t,e){return r.headData[e]}),e.img=this.makeTextImg(e),t.next=21;break;case 11:if("img"===e.srcType)return e.imgUrl=this.headData[e.srcTag]||e.srcTag.replace(/\[(.*)\]/,function(t,e){return r.headData[e]}),t.prev=13,t.next=16,this.loadImg(e.imgUrl);t.next=21;break;case 16:e.img=t.sent,t.next=21;break;case 19:t.prev=19,t.t0=t.catch(13);case 21:e.img&&(n[e.srcId]=e);case 22:case"end":return t.stop()}},t,this,[[13,19]])}))}))}},{key:"getConfigBySrc",value:function(t){return new Promise(function(e,r){var n=new XMLHttpRequest;n.open("GET",t,!0),n.responseType="json",n.onload=function(){var t;200===n.status||304===n.status&&n.response?(t=n.response,e(t)):r(new Error("http response invalid"+n.status))},n.send()})}},{key:"makeTextImg",value:function(t){var e=t.textStr,r=t.w,n=t.h,o=t.color,i=t.style,a=t.fontStyle,s=this.ctx;s.canvas.width=r,s.canvas.height=n,s.textBaseline="middle",s.textAlign="center";function c(){var t=Math.min(r/e.length,n-8),t=["".concat(t,"px"),"Arial"];return"b"===i&&t.unshift("bold"),t.join(" ")}return a?"string"==typeof a?(s.font=a,s.fillStyle=o):"object"==T(a)?(s.font=a.font||c(),s.fillStyle=a.color||o):"function"==typeof a&&(s.font=c(),s.fillStyle=o,a.call(null,s,t)):(s.font=c(),s.fillStyle=o),s.clearRect(0,0,s.canvas.width,s.canvas.height),s.fillText(e,r/2,n/2),s.getImageData(0,0,r,n)}},{key:"getFrame",value:function(e){return this.frame.find(function(t){return t.i===e})}}]),r}();function A(t,e,r){e=t.createShader(e);return t.shaderSource(e,r),t.compileShader(e),e}function F(t,e,r){var n=t.createTexture(),e=t.TEXTURE0+e;return t.activeTexture(e),t.bindTexture(t.TEXTURE_2D,n),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.NEAREST),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),r&&t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r),n}var C=function(){function e(t){c(this,e),this.customEvent=["frame","percentage"],t.container&&t.src,this.options=Object.assign({src:"",loop:!1,fps:20,width:375,height:375,container:null,precache:!1,mute:!1,config:"",accurate:!1,offset:0},t),this.fps=20,this.setBegin=!0,this.useFrameCallback=!1,this.requestAnim=this.requestAnimFunc(),this.container=this.options.container,this.options.src&&this.options.config&&this.options.container&&this.initVideo()}return h(e,[{key:"precacheSource",value:function(t){var a=window.webkitURL||window.URL;return new Promise(function(i,e){var r=new XMLHttpRequest;r.open("GET",t,!0),r.responseType="blob",r.onload=function(){var t,o;200===r.status||304===r.status?(t=r.response,/iphone|ipad|ipod/i.test(navigator.userAgent)?((o=new FileReader).onloadend=function(){for(var t=o.result,e=atob(t.slice(t.indexOf(",")+1)),r=Array(e.length),n=0;n<e.length;n++)r[n]=e.charCodeAt(n);t=new Uint8Array(r),t=new Blob([t],{type:"video/mp4"});i(a.createObjectURL(t))},o.readAsDataURL(r.response)):i(a.createObjectURL(t))):e(new Error("http response invalid"+r.status))},r.send()})}},{key:"initVideo",value:function(){var e=this,t=this.options,r=this.video=document.createElement("video");r.crossOrigin="anonymous",r.autoplay=!1,r.preload="auto",r.setAttribute("playsinline",""),r.setAttribute("webkit-playsinline",""),t.mute&&(r.muted=!0,r.volume=0),r.style.display="none",r.loop=!!t.loop,t.precache?this.precacheSource(t.src).then(function(t){r.src=t,document.body.appendChild(r)}).catch(function(t){}):(r.src=t.src,document.body.appendChild(this.video),r.load()),"requestVideoFrameCallback"in this.video&&(this.useFrameCallback=!!this.options.accurate),this.events={},["playing","pause","ended","error","canplay"].forEach(function(t){e.on(t,e["on"+t].bind(e))})}},{key:"drawFrame",value:function(t,e){this._drawFrame=this._drawFrame||this.drawFrame.bind(this,t,e),this.useFrameCallback?this.animId=this.video.requestVideoFrameCallback(this.drawFrame.bind(this)):this.animId=this.requestAnim(this._drawFrame)}},{key:"play",value:function(){var r=this,t=this.video&&this.video.play();t&&t.then&&t.catch(function(t){r.video&&(r.video.muted=!0,r.video.volume=0,r.video.play().catch(function(e){(r.events.error||[]).forEach(function(t){t(e)})}))})}},{key:"pause",value:function(){this.video&&this.video.pause()}},{key:"setTime",value:function(t){this.video&&(this.video.currentTime=t)}},{key:"requestAnimFunc",value:function(){var e=this;if(window.requestAnimationFrame){var r=-1;return function(t){return r++,requestAnimationFrame(function(){return r%(60/e.fps)?void(e.animId=e.requestAnim(t)):t()})}}return function(t){return setTimeout(t,1e3/e.fps)}}},{key:"cancelRequestAnimation",value:function(){if(this.useFrameCallback)try{this.video.cancelVideoFrameCallback(this.animId)}catch(t){}else(window.cancelAnimationFrame?cancelAnimationFrame:clearTimeout)(this.animId)}},{key:"destroy",value:function(){this.cancelRequestAnimation(),this.video&&(this.video.parentNode&&this.video.parentNode.removeChild(this.video),this.video=null),this.options.onDestory&&this.options.onDestory()}},{key:"clear",value:function(){this.destroy()}},{key:"on",value:function(t,e){var r=this.events[t]||[];return r.push(e),this.events[t]=r,-1===this.customEvent.indexOf(t)&&this.video.addEventListener(t,e),this}},{key:"onplaying",value:function(){this.firstPlaying||(this.firstPlaying=!0,this.useFrameCallback||this.drawFrame(null,null))}},{key:"onpause",value:function(){}},{key:"onended",value:function(){this.destroy()}},{key:"oncanplay",value:function(){var t=this.options.beginPoint;t&&this.setBegin&&(this.setBegin=!1,this.video.currentTime=t)}},{key:"onerror",value:function(t){this.destroy(),this.options.onLoadError&&this.options.onLoadError(t)}}]),e}();function R(r){var n=function(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}();return function(){var t,e=_(r);return e=n?(t=_(this).constructor,Reflect.construct(e,arguments,t)):e.apply(this,arguments),b(this,e)}}var S=null,k={};function P(t,e,r,n,o,i){return[t/o,(t+r)/o,(i-e-n)/i,(i-e)/i]}var e,L=function(){y(a,C);var e=R(a);function a(t){return c(this,a),(t=e.call(this,t)).useFrameCallback&&(t.animId=t.video.requestVideoFrameCallback(t.drawFrame.bind(l(t)))),t.insType=t.options.type,k[t.insType]?t.instance=k[t.insType]:t.instance=k[t.insType]={},t.textures=[],t.buffers=[],t.shaders=[],t.init(),t}return h(a,[{key:"init",value:function(){return w(this,void 0,void 0,s.mark(function t(){return s.wrap(function(t){for(;;)switch(t.prev=t.next){case 0:if(this.setCanvas(),this.options.config)return t.prev=2,t.next=5,new E(this.options.config,this.options).init();t.next=12;break;case 5:this.vapFrameParser=t.sent,this.resources=this.vapFrameParser.srcData,t.next=12;break;case 9:t.prev=9,t.t0=t.catch(2);case 12:this.resources=this.resources||{},this.initWebGL(),this.play();case 15:case"end":return t.stop()}},t,this,[[2,9]])}))}},{key:"setCanvas",value:function(){var t=this.instance.canvas,e=this.options,r=e.width,e=e.height;(t=t||(this.instance.canvas=document.createElement("canvas"))).width=r,t.height=e,this.container.appendChild(t)}},{key:"initWebGL",value:function(){var t=this.instance.canvas,e=this.instance,r=e.gl,n=e.vertexShader,o=e.fragmentShader,i=e.program;if(t)return r||(this.instance.gl=r=t.getContext("webgl")||t.getContext("experimental-webgl"),r.disable(r.BLEND),r.blendFuncSeparate(r.SRC_ALPHA,r.ONE_MINUS_SRC_ALPHA,r.SRC_ALPHA,r.ONE_MINUS_SRC_ALPHA),r.pixelStorei(r.UNPACK_FLIP_Y_WEBGL,!0)),r.clear(r.COLOR_BUFFER_BIT),r?(r.viewport(0,0,t.width,t.height),n=n||(this.instance.vertexShader=this.initVertexShader()),o=o||(this.instance.fragmentShader=this.initFragmentShader()),i=i||(this.instance.program=(e=n,t=o,o=(n=r).createProgram(),n.attachShader(o,e),n.attachShader(o,t),n.linkProgram(o),n.useProgram(o),o)),this.program=i,this.initTexture(),this.initVideoTexture(),r):void 0}},{key:"initVertexShader",value:function(){var t=this.instance.gl;return A(t,t.VERTEX_SHADER,"attribute vec2 a_position; // 接受顶点坐标\n             attribute vec2 a_texCoord; // 接受纹理坐标\n             attribute vec2 a_alpha_texCoord; // 接受纹理坐标\n             varying vec2 v_alpha_texCoord; // 接受纹理坐标\n             varying   vec2 v_texcoord; // 传递纹理坐标给片元着色器\n             void main(void){\n                gl_Position = vec4(a_position, 0.0, 1.0); // 设置坐标\n                v_texcoord = a_texCoord; // 设置纹理坐标\n                v_alpha_texCoord = a_alpha_texCoord; // 设置纹理坐标\n             }")}},{key:"initFragmentShader",value:function(){var t=this.instance.gl,e=t.getParameter(t.MAX_TEXTURE_IMAGE_UNITS)-1,r="",n="";if(0<e){for(var o=[],i=[],a=0;a<e;a++)o.push("if(ndx == ".concat(a+1,"){\n                        color = texture2D(u_image").concat(a+1,",uv);\n                    }")),i.push("uniform sampler2D u_image".concat(a+1,";"));n="\n            ".concat(i.join("\n"),"\n            uniform float image_pos[").concat(9*e,"];\n            vec4 getSampleFromArray(int ndx, vec2 uv) {\n                vec4 color;\n                ").concat(o.join(" else "),"\n                return color;\n            }\n            "),r="\n            vec4 srcColor,maskColor;\n            vec2 srcTexcoord,maskTexcoord;\n            int srcIndex;\n            float x1,x2,y1,y2,mx1,mx2,my1,my2; //显示的区域\n\n            for(int i=0;i<".concat(9*e,";i+= ").concat(9,"){\n                if ((int(image_pos[i]) > 0)) {\n                  srcIndex = int(image_pos[i]);\n    \n                    x1 = image_pos[i+1];\n                    x2 = image_pos[i+2];\n                    y1 = image_pos[i+3];\n                    y2 = image_pos[i+4];\n                    \n                    mx1 = image_pos[i+5];\n                    mx2 = image_pos[i+6];\n                    my1 = image_pos[i+7];\n                    my2 = image_pos[i+8];\n    \n    \n                    if (v_texcoord.s>x1 && v_texcoord.s<x2 && v_texcoord.t>y1 && v_texcoord.t<y2) {\n                        srcTexcoord = vec2((v_texcoord.s-x1)/(x2-x1),(v_texcoord.t-y1)/(y2-y1));\n                         maskTexcoord = vec2(mx1+srcTexcoord.s*(mx2-mx1),my1+srcTexcoord.t*(my2-my1));\n                         srcColor = getSampleFromArray(srcIndex,srcTexcoord);\n                         maskColor = texture2D(u_image_video, maskTexcoord);\n                         srcColor.a = srcColor.a*(maskColor.r);\n                      \n                         bgColor = vec4(srcColor.rgb*srcColor.a,srcColor.a) + (1.0-srcColor.a)*bgColor;\n                      \n                    }   \n                }\n            }\n            ")}r="\n        precision lowp float;\n        varying vec2 v_texcoord;\n        varying vec2 v_alpha_texCoord;\n        uniform sampler2D u_image_video;\n        ".concat(n,"\n        \n        void main(void) {\n            vec4 bgColor = ").concat("vec4(texture2D(u_image_video, v_texcoord).rgb, texture2D(u_image_video,v_alpha_texCoord).r);","\n            ").concat(r,"\n            // bgColor = texture2D(u_image[0], v_texcoord);\n            gl_FragColor = bgColor;\n        }\n        ");return A(t,t.FRAGMENT_SHADER,r)}},{key:"initTexture",value:function(){var t=this.instance.gl,e=1;if(this.vapFrameParser&&this.vapFrameParser.srcData){var r,n=this.vapFrameParser.srcData;for(r in n){var o=n[r];this.textures.push(F(t,e,o.img));var i=t.getUniformLocation(this.program,"u_image".concat(e));t.uniform1i(i,e),this.vapFrameParser.textureMap[o.srcId]=e++}var a=t.createTexture();t.activeTexture(t.TEXTURE0),t.bindTexture(t.TEXTURE_2D,a),t.texImage2D(t.TEXTURE_2D,0,t.RGBA,1,1,0,t.RGBA,t.UNSIGNED_BYTE,null),this.videoTexture=F(t,e);a=t.getUniformLocation(this.program,"u_image_video");t.uniform1i(a,e)}}},{key:"initVideoTexture",value:function(){var t,e,r,n,o,i,a,s,c,u,h,l=this.instance.gl,f=l.createBuffer();this.buffers.push(f),this.vapFrameParser&&this.vapFrameParser.config&&this.vapFrameParser.config.info&&(h=[],t=(a=this.vapFrameParser.config.info).videoW,u=a.videoH,e=(i=v(a.rgbFrame,4))[0],r=i[1],n=i[2],c=i[3],o=(s=v(a.aFrame,4))[0],i=s[1],a=s[2],s=s[3],c=P(e,r,n,c,t,u),u=P(o,i,a,s,t,u),h.push.apply(h,[-1,1,c[0],c[3],u[0],u[3]]),h.push.apply(h,[1,1,c[1],c[3],u[1],u[3]]),h.push.apply(h,[-1,-1,c[0],c[2],u[0],u[2]]),h.push.apply(h,[1,-1,c[1],c[2],u[1],u[2]]),h=new Float32Array(h),l.bindBuffer(l.ARRAY_BUFFER,f),l.bufferData(l.ARRAY_BUFFER,h,l.STATIC_DRAW),this.aPosition=l.getAttribLocation(this.program,"a_position"),l.enableVertexAttribArray(this.aPosition),this.aTexCoord=l.getAttribLocation(this.program,"a_texCoord"),l.enableVertexAttribArray(this.aTexCoord),this.aAlphaTexCoord=l.getAttribLocation(this.program,"a_alpha_texCoord"),l.enableVertexAttribArray(this.aAlphaTexCoord),h=h.BYTES_PER_ELEMENT,l.vertexAttribPointer(this.aPosition,2,l.FLOAT,!1,6*h,0),l.vertexAttribPointer(this.aTexCoord,2,l.FLOAT,!1,6*h,2*h),l.vertexAttribPointer(this.aAlphaTexCoord,2,l.FLOAT,!1,6*h,4*h))}},{key:"drawFrame",value:function(t,e){var p=this,r=e&&0<=e.mediaTime?e.mediaTime:this.video.currentTime,n=e&&0<e.presentedFrames?e.presentedFrames-1:Math.round(r*this.options.fps)+this.options.offset;(this.events.frame||[]).forEach(function(t){t(n+1,r)});var o,d,i=this.instance.gl;i&&(i.clear(i.COLOR_BUFFER_BIT),this.vapFrameParser&&(o=this.vapFrameParser.getFrame(n),d=[],o&&o.obj&&o.obj.forEach(function(t,e){d[d.length]=+p.vapFrameParser.textureMap[t.srcId];var r=p.vapFrameParser.config.info,n=r.videoW,o=r.videoH,i=v(r.rgbFrame,2),a=i[0],s=i[1],c=v(t.frame,4),u=c[0],h=c[1],l=c[2],f=c[3],r=v(t.mFrame,4),i=r[0],c=r[1],t=r[2],r=r[3],f=P(u+a,h+s,l,f,n,o),o=P(i,c,t,r,n,o);d=d.concat(f).concat(o)}),o=9*(i.getParameter(i.MAX_TEXTURE_IMAGE_UNITS)-1),d=d.concat(new Array(o-d.length).fill(0)),this._imagePos=this._imagePos||i.getUniformLocation(this.program,"image_pos"),i.uniform1fv(this._imagePos,new Float32Array(d))),i.texImage2D(i.TEXTURE_2D,0,i.RGB,i.RGB,i.UNSIGNED_BYTE,this.video),i.drawArrays(i.TRIANGLE_STRIP,0,4)),m(_(a.prototype),"drawFrame",this).call(this,t,e)}},{key:"destroy",value:function(){var t=this.instance,e=t.canvas,r=t.gl;if(this.textures&&this.textures.length)for(var n=0;n<this.textures.length;n++)r.deleteTexture(this.textures[n]);e&&e.parentNode&&e.parentNode.removeChild(e),r.clear(r.COLOR_BUFFER_BIT),m(_(a.prototype),"destroy",this).call(this),this.clearMemoryCache()}},{key:"clearMemoryCache",value:function(){S&&clearTimeout(S),S=setTimeout(function(){k={}},18e5)}}]),a}();return function(t){if(function(){if(void 0!==e)return e;try{if(!window.WebGLRenderingContext)return!1;var t=document.createElement("canvas"),t=t.getContext("webgl")||t.getContext("experimental-webgl");e=!!t,t=null}catch(t){e=!1}return e}())return new L(Object.assign({},t));throw new Error("your browser not support webgl")}});
diff --git a/web/package.json b/web/package.json
index 8ad3bf34..d5f9a022 100644
--- a/web/package.json
+++ b/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "video-animation-player",
-  "version": "0.2.10",
+  "version": "0.2.11",
   "description": "webgl动画特效组件",
   "main": "dist/vap.js",
   "scripts": {