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Use this code to pause the video and take screenshots. You can than use Whammy to generate a webm and convert it to whatever file format you like with ffmpeg
generateVideo(){
const vid = new Whammy.fromImageArray(this.captures, 30);
vid.name = "project_id_238.webm";
vid.lastModifiedDate = new Date();
this.file = URL.createObjectURL(vid);
},
async pauseAll(){
this.pauseVideo();
if(this.animations.length){
this.pauseLotties()
}
this.captures.push(this.canvas.toDataURL('image/webp'));
if(!this.ended){
setTimeout(()=>{
this.pauseAll();
}, 500);
}
},
async pauseVideo(){
console.log("curretTime",this.video.currentTime);
console.log("duration", this.video.duration);
this.video.pause();
const oneFrame = 1/30;
this.video.currentTime += oneFrame;
},
async pauseLotties(){
lottie.freeze();
for(let i =0; i<this.animations.length; i++){
let step =0;
let animation = this.animations[i].lottie;
if(animation.currentFrame<=animation.totalFrames){
step = animation.currentFrame + animation.totalFrames/30;
}
lottie.goToAndStop(step, true, animation.name);
}
},
Source:stackexchange.com