@pixi/core/lib/textures/resources/VideoResource.mjs

import { Ticker } from '@pixi/ticker';
import { BaseImageResource } from './BaseImageResource.mjs';

const _VideoResource = class extends BaseImageResource {
  constructor(source, options) {
    options = options || {};
    if (!(source instanceof HTMLVideoElement)) {
      const videoElement = document.createElement("video");
      videoElement.setAttribute("preload", "auto");
      videoElement.setAttribute("webkit-playsinline", "");
      videoElement.setAttribute("playsinline", "");
      if (typeof source === "string") {
        source = [source];
      }
      const firstSrc = source[0].src || source[0];
      BaseImageResource.crossOrigin(videoElement, firstSrc, options.crossorigin);
      for (let i = 0; i < source.length; ++i) {
        const sourceElement = document.createElement("source");
        let { src, mime } = source[i];
        src = src || source[i];
        const baseSrc = src.split("?").shift().toLowerCase();
        const ext = baseSrc.slice(baseSrc.lastIndexOf(".") + 1);
        mime = mime || _VideoResource.MIME_TYPES[ext] || `video/${ext}`;
        sourceElement.src = src;
        sourceElement.type = mime;
        videoElement.appendChild(sourceElement);
      }
      source = videoElement;
    }
    super(source);
    this.noSubImage = true;
    this._autoUpdate = true;
    this._isConnectedToTicker = false;
    this._updateFPS = options.updateFPS || 0;
    this._msToNextUpdate = 0;
    this.autoPlay = options.autoPlay !== false;
    this._load = null;
    this._resolve = null;
    this._onCanPlay = this._onCanPlay.bind(this);
    this._onError = this._onError.bind(this);
    if (options.autoLoad !== false) {
      this.load();
    }
  }
  update(_deltaTime = 0) {
    if (!this.destroyed) {
      const elapsedMS = Ticker.shared.elapsedMS * this.source.playbackRate;
      this._msToNextUpdate = Math.floor(this._msToNextUpdate - elapsedMS);
      if (!this._updateFPS || this._msToNextUpdate <= 0) {
        super.update();
        this._msToNextUpdate = this._updateFPS ? Math.floor(1e3 / this._updateFPS) : 0;
      }
    }
  }
  load() {
    if (this._load) {
      return this._load;
    }
    const source = this.source;
    if ((source.readyState === source.HAVE_ENOUGH_DATA || source.readyState === source.HAVE_FUTURE_DATA) && source.width && source.height) {
      source.complete = true;
    }
    source.addEventListener("play", this._onPlayStart.bind(this));
    source.addEventListener("pause", this._onPlayStop.bind(this));
    if (!this._isSourceReady()) {
      source.addEventListener("canplay", this._onCanPlay);
      source.addEventListener("canplaythrough", this._onCanPlay);
      source.addEventListener("error", this._onError, true);
    } else {
      this._onCanPlay();
    }
    this._load = new Promise((resolve) => {
      if (this.valid) {
        resolve(this);
      } else {
        this._resolve = resolve;
        source.load();
      }
    });
    return this._load;
  }
  _onError(event) {
    this.source.removeEventListener("error", this._onError, true);
    this.onError.emit(event);
  }
  _isSourcePlaying() {
    const source = this.source;
    return !source.paused && !source.ended && this._isSourceReady();
  }
  _isSourceReady() {
    const source = this.source;
    return source.readyState > 2;
  }
  _onPlayStart() {
    if (!this.valid) {
      this._onCanPlay();
    }
    if (this.autoUpdate && !this._isConnectedToTicker) {
      Ticker.shared.add(this.update, this);
      this._isConnectedToTicker = true;
    }
  }
  _onPlayStop() {
    if (this._isConnectedToTicker) {
      Ticker.shared.remove(this.update, this);
      this._isConnectedToTicker = false;
    }
  }
  _onCanPlay() {
    const source = this.source;
    source.removeEventListener("canplay", this._onCanPlay);
    source.removeEventListener("canplaythrough", this._onCanPlay);
    const valid = this.valid;
    this.resize(source.videoWidth, source.videoHeight);
    if (!valid && this._resolve) {
      this._resolve(this);
      this._resolve = null;
    }
    if (this._isSourcePlaying()) {
      this._onPlayStart();
    } else if (this.autoPlay) {
      source.play();
    }
  }
  dispose() {
    if (this._isConnectedToTicker) {
      Ticker.shared.remove(this.update, this);
      this._isConnectedToTicker = false;
    }
    const source = this.source;
    if (source) {
      source.removeEventListener("error", this._onError, true);
      source.pause();
      source.src = "";
      source.load();
    }
    super.dispose();
  }
  get autoUpdate() {
    return this._autoUpdate;
  }
  set autoUpdate(value) {
    if (value !== this._autoUpdate) {
      this._autoUpdate = value;
      if (!this._autoUpdate && this._isConnectedToTicker) {
        Ticker.shared.remove(this.update, this);
        this._isConnectedToTicker = false;
      } else if (this._autoUpdate && !this._isConnectedToTicker && this._isSourcePlaying()) {
        Ticker.shared.add(this.update, this);
        this._isConnectedToTicker = true;
      }
    }
  }
  get updateFPS() {
    return this._updateFPS;
  }
  set updateFPS(value) {
    if (value !== this._updateFPS) {
      this._updateFPS = value;
    }
  }
  static test(source, extension) {
    return globalThis.HTMLVideoElement && source instanceof HTMLVideoElement || _VideoResource.TYPES.includes(extension);
  }
};
let VideoResource = _VideoResource;
VideoResource.TYPES = ["mp4", "m4v", "webm", "ogg", "ogv", "h264", "avi", "mov"];
VideoResource.MIME_TYPES = {
  ogv: "video/ogg",
  mov: "video/quicktime",
  m4v: "video/mp4"
};

export { VideoResource };
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