ArtPlayer/packages/artplayer/src/player/volumeMix.js

import { clamp } from '../utils';

export default function volumeMix(art, player) {
  const { refs: { $video }, i18n, notice, storage } = art;

  Object.defineProperty(player, 'volume', {
    get: () => $video.volume || 0,
    set: percentage => {
      if (percentage !== undefined) {
        $video.volume = clamp(percentage, 0, 1);
        notice.show(`${i18n.get('Volume')}: ${parseInt($video.volume * 100)}`);
        if ($video.volume !== 0) {
          storage.set('volume', $video.volume);
        }
        art.emit('volumeChange', $video.volume);
      }
    }
  });

  Object.defineProperty(player, 'mute', {
    value: () => {
      player.volume = 0;
    }
  });
}