P2P Media Loader Documentation

P2P Media Loader is an open-source JavaScript library that leverages modern web browser features, such as HTML5 video and WebRTC, to enable media delivery over peer-to-peer (P2P) networks. It integrates smoothly with many popular HTML5 video players and works entirely without browser plugins or add-ons. Experience it in action with the demo.

P2P Media Loader can be bundled in your project as an npm package or used through a CDN. Below are examples of both methods.

Using P2P Media Loader with npm

To include P2P Media Loader in your project using npm, follow these steps:

  1. Install the package via npm:

    • For HLS.js integration:

      npm install p2p-media-loader-hlsjs

    • For Shaka Player integration:

      npm install p2p-media-loader-shaka

  2. Provide Node.js polyfills

    To ensure the P2P Media Loader works correctly in a browser environment, you must provide Node.js polyfills required by bittorrent-tracker dependency.

    • Vite configuration example:

      // vite.config.ts
      import { defineConfig } from "vite";
      import { nodePolyfills } from "vite-plugin-node-polyfills";

      export default defineConfig({
        plugins: [nodePolyfills()],
      });

    • Webpack configuration example:

      // webpack.config.mjs
      import NodePolyfillPlugin from "node-polyfill-webpack-plugin";

      export default {
        plugins: [new NodePolyfillPlugin({ additionalAliases: ["process"] })],
      };

  3. Import and use it in your project:

    • HLS.js integration:

      import Hls from "hls.js";
      import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

      const HlsWithP2P = HlsJsP2PEngine.injectMixin(Hls);

    • Shaka Player integration:

      import shaka from "shaka-player/dist/shaka-player.ui";
      import { ShakaP2PEngine } from "p2p-media-loader-shaka";

      ShakaP2PEngine.registerPlugins(shaka);

For more examples with npm packages, you may check our React demo

Using P2P Media Loader with CDN via JavaScript Modules

P2P Media Loader supports many players that use Hls.js as media engine. Lets pick Vidstack player for extended hlsjs example:

Integrating P2P with Vidstack and Hls.js

<!doctype html>
<html>
  <head>
    <!-- Include Hls.js library from CDN -->
    <script src="https://cdn.jsdelivr.net/npm/hls.js@~1/dist/hls.min.js"></script>

    <!-- Import map for P2P Media Loader modules -->
    <script type="importmap">
      {
        "imports": {
          "p2p-media-loader-core": "https://cdn.jsdelivr.net/npm/p2p-media-loader-core@^1/dist/p2p-media-loader-core.es.min.js",
          "p2p-media-loader-hlsjs": "https://cdn.jsdelivr.net/npm/p2p-media-loader-hlsjs@^1/dist/p2p-media-loader-hlsjs.es.min.js"
        }
      }
    </script>

    <!-- Include Vidstack player stylesheets -->
    <link rel="stylesheet" href="https://cdn.vidstack.io/player/theme.css" />
    <link rel="stylesheet" href="https://cdn.vidstack.io/player/video.css" />

    <!-- Include Vidstack player library from CDN -->
    <script src="https://cdn.vidstack.io/player" type="module"></script>

    <!-- Module script to initialize Vidstack player with P2P Media Loader -->
    <script type="module">
      import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

      const player = document.querySelector("media-player");
      // Inject P2P capabilities into Hls.js
      const HlsWithP2P = HlsJsP2PEngine.injectMixin(window.Hls);

      player.addEventListener("provider-change", (event) => {
        const provider = event.detail;

        // Check if the provider is HLS
        if (provider?.type === "hls") {
          provider.library = HlsWithP2P;

          provider.config = {
            p2p: {
              core: {
                swarmId: "Optional custom swarm ID for stream",
                // other P2P engine config parameters go here
              },
              onHlsJsCreated: (hls) => {
                hls.p2pEngine.addEventListener("onPeerConnect", (params) => {
                  console.log("Peer connected:", params.peerId);
                });
                // Subscribe to P2P engine and Hls.js events here
              },
            },
          };
        }
      });
    </script>
  </head>

  <body>
    <div style="width: 800px">
      <!-- Vidstack media player with HLS stream -->
      <media-player src="streamUrl">
        <media-provider></media-provider>
        <media-video-layout></media-video-layout>
      </media-player>
    </div>
  </body>
</html>

Integrating P2P with raw Hls.js player

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  const videoElement = document.querySelector("#video");

  const HlsWithP2P = HlsJsP2PEngine.injectMixin(window.Hls);

  const hls = new HlsWithP2P({
    p2p: {
      core: {
        swarmId: "Optional custom swarm ID for stream",
        // Other P2P engine config parameters go here
      },
      onHlsJsCreated(hls) {
        hls.p2pEngine.addEventListener("onPeerConnect", (params) => {
          console.log("Peer connected:", params.peerId);
        });
        // Subscribe to P2P engine and Hls.js events here
      },
    },
  });

  hls.attachMedia(videoElement);
  hls.loadSource(streamUrl);
</script>

Integrating P2P with PlayerJS and Hls.js

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  window.Hls = HlsJsP2PEngine.injectMixin(window.Hls);

  const player = new Playerjs({
    id: "player",
    hlsconfig: {
      p2p: {
        core: {
          swarmId: "Optional custom swarm ID for stream",
          // Other P2P engine config parameters go here
        },
        onHlsJsCreated: (hls) => {
          // Subscribe to P2P engine and Hls.js events here
          hls.p2pEngine.addEventListener("onPeerConnect", (details) => {
            console.log(`Connected to peer ${details.peerId})`);
          });
        },
      },
    },
  });
</script>

Integrating P2P with DPlayer and Hls.js

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  const videoContainer = document.querySelector("#player");

  const player = new DPlayer({
    container: videoContainer,
    video: {
      url: "",
      type: "customHls",
      customType: {
        customHls: (video) => {
          const HlsWithP2P = HlsJsP2PEngine.injectMixin(window.Hls);

          const hls = new HlsWithP2P({
            p2p: {
              core: {
                swarmId: "Optional custom swarm ID for stream",
                // Other P2P engine config parameters go here
              },
            },
          });

          hls.attachMedia(video);
          hls.loadSource(streamUrl);
        },
      },
    },
  });

  player.play();
</script>

Integrating P2P with Clappr and Hls.js

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  const engine = new HlsJsP2PEngine({
    core: {
      swarmId: "Optional custom swarm ID for stream",
      // Other P2P engine config parameters go here
    },
  });

  const player = new Clappr.Player({
    source: streamUrl,
    plugins: [LevelSelector], // https://cdn.jsdelivr.net/gh/clappr/clappr-level-selector-plugin@~0/dist/level-selector.min.js
    height: "100%",
    width: "100%",
    parentId: `#player`,
    playback: {
      hlsjsConfig: {
        ...engine.getConfigForHlsJs(),
      },
    },
  });

  engine.bindHls(() => clapprPlayer.core.getCurrentPlayback()?._hls);
</script>

Integrating P2P with MediaElement and Hls.js

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  const videoElement = document.querySelector("#video");

  window.Hls = HlsJsP2PEngine.injectMixin(window.Hls);

  const player = new MediaElementPlayer(videoElement.id, {
    videoHeight: "100%",
    hls: {
      p2p: {
        core: {
          swarmId: "Optional custom swarm ID for stream",
          // Other P2P engine config parameters go here
        },
        onHlsJsCreated: (hls) => {
          // Subscribe to P2P engine and Hls.js events here
        },
      },
    },
  });

  player.setSrc(streamUrl);
  player.load();
</script>

Integrating P2P with Plyr and Hls.js

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  const videoElement = document.querySelector("#video");

  const HlsWithP2P = HlsJsP2PEngine.injectMixin(window.Hls);

  const hls = new HlsWithP2P({
    p2p: {
      core: {
        swarmId: "Optional custom swarm ID for stream",
        // Other P2P engine config parameters go here
      },
      onHlsJsCreated(hls) {
        // Subscribe to P2P engine and Hls.js events here
      },
    },
  });

  hls.on(Hls.Events.MANIFEST_PARSED, () => {
    const levels = hls.levels;

    const quality = {
      default: levels[levels.length - 1].height,
      options: levels.map((level) => level.height),
      forced: true,
      onChange: (newQuality) => {
        levels.forEach((level, levelIndex) => {
          if (level.height === newQuality) {
            hls.currentLevel = levelIndex;
          }
        });
      },
    };

    player = new Plyr(videoElement, {
      quality,
      autoplay: true,
      muted: true,
    });
  });

  hls.attachMedia(videoElement);
  hls.loadSource(streamUrl);
</script>

Integrating P2P with OpenPlayerJS and Hls.js

<script type="module">
  import { HlsJsP2PEngine } from "p2p-media-loader-hlsjs";

  const videoElement = document.querySelector("#video");
  const HlsWithP2P = HlsJsP2PEngine.injectMixin(window.Hls);

  const player = new OpenPlayerJS(videoElement, {
    hls: {
      p2p: {
        core: {
          swarmId: "Optional custom swarm ID for stream",
          // Other P2P engine config parameters go here
        },
        onHlsJsCreated: (hls) => {
          // Subscribe to P2P engine and Hls.js events here
        },
      },
    },
    controls: {
      layers: {
        left: ["play", "time", "volume"],
        right: ["settings", "fullscreen", "levels"],
        middle: ["progress"],
      },
    },
  });

  player.src = [
    {
      src: streamUrl,
      type: "application/x-mpegURL",
    },
  ];

  player.init();
</script>

Integrating P2P with Shaka Player

Shaka player is used for an extended example:

<!doctype html>
<html>
  <head>
    <!-- Link to Shaka Player's CSS for controls -->
    <link
      rel="stylesheet"
      type="text/css"
      href="https://unpkg.com/shaka-player/dist/controls.css"
    />

    <!-- Link to Shaka Player's compiled UI script -->
    <script src="https://unpkg.com/shaka-player/dist/shaka-player.ui.js"></script>

    <!-- Import map for P2P Media Loader modules -->
    <script type="importmap">
      {
        "imports": {
          "p2p-media-loader-core": "https://cdn.jsdelivr.net/npm/p2p-media-loader-core@^1/dist/p2p-media-loader-core.es.min.js",
          "p2p-media-loader-shaka": "https://cdn.jsdelivr.net/npm/p2p-media-loader-shaka@^1/dist/p2p-media-loader-shaka.es.min.js"
        }
      }
    </script>

    <!-- Module script to initialize Shaka Player with P2P Media Loader -->
    <script type="module">
      import { ShakaP2PEngine } from "p2p-media-loader-shaka";

      // Register P2P Media Loader plugins with Shaka
      ShakaP2PEngine.registerPlugins();

      async function init() {
        // Get the video element by its ID
        const video = document.getElementById("video");

        // Get Shaka UI controls and player
        const ui = video["ui"];
        const controls = ui.getControls();
        const player = controls.getPlayer();

        // Initialize P2P Media Loader with custom config
        const shakaP2PEngine = new ShakaP2PEngine({
          core: {
            swarmId: "Optional custom swarm ID for stream",
            // Other P2P engine config parameters go here
          },
        });

        //Subscribe to P2P engine events here
        shakaP2PEngine.addEventListener("onPeerConnect", (params) => {
          console.log("Peer connected:", params.peerId);
        });

        // Configure and initialize Shaka Player with P2P Media Loader
        shakaP2PEngine.bindShakaPlayer(player);

        // Load the stream URL into the player
        player.load(streamUrl);
      }

      // Add event listener for Shaka UI loaded event to trigger initialization
      document.addEventListener("shaka-ui-loaded", init);
    </script>
  </head>

  <body>
    <div data-shaka-player-container style="max-width:40em">
      <!-- Video element with Shaka Player UI -->
      <video
        autoplay
        data-shaka-player
        id="video"
        style="width:100%;height:100%"
      ></video>
    </div>
  </body>
</html>

Integrating P2P with Clappr and Shaka Player

<script type="module">
  import { ShakaP2PEngine } from "p2p-media-loader-shaka";

  const container = document.getElementById("container");

  ShakaP2PEngine.registerPlugins();

  const shakaP2PEngine = new ShakaP2PEngine({
    core: {
      swarmId: "Optional custom swarm ID for stream",
      // Other P2P Media Loader Core options
    },
  });

  const player = new Clappr.Player({
    parentId: `#${container.id}`,
    source: streamUrl,
    plugins: [window.DashShakaPlayback, window.LevelSelector],
    shakaOnBeforeLoad: (shakaPlayerInstance) => {
      subscribeToUiEvents({
        engine: shakaP2PEngine,
        onPeerConnect,
        onPeerDisconnect,
        onChunkDownloaded,
        onChunkUploaded,
      });

      shakaP2PEngine.bindShakaPlayer(shakaPlayerInstance);
    },
  });
</script>

Integrating P2P with DPlayer and Shaka Player

<script type="module">
  import { ShakaP2PEngine } from "p2p-media-loader-shaka";

  const container = document.getElementById("container");

  ShakaP2PEngine.registerPlugins();

  const shakaP2PEngine = new ShakaP2PEngine({
    core: {
      swarmId: "Optional custom swarm ID for stream",
      // Other P2P Media Loader Core options
    },
  });

  const player = new DPlayer({
    container,
    video: {
      url: "",
      type: "customHlsOrDash",
      customType: {
        customHlsOrDash: (video) => {
          const shakaPlayer = new shaka.Player();
          void shakaPlayer.attach(video);

          shakaP2PEngine.bindShakaPlayer(shakaPlayer);
          void shakaPlayer.load(streamUrl);
        },
      },
    },
  });
</script>

Integrating P2P with Plyr and Shaka Player

<script type="module">
  import { ShakaP2PEngine } from "p2p-media-loader-shaka";

  ShakaP2PEngine.registerPlugins();

  const videoElement = document.getElementById("video");

  const initPlayer = () => {
    const shakaP2PEngine = new ShakaP2PEngine({
      core: {
        swarmId: "Optional custom swarm ID for stream",
        // Other P2P Media Loader Core options
      },
    });
    const shakaPlayer = new shaka.Player();

    shakaPlayer.attach(videoElement);

    shakaP2PEngine.bindShakaPlayer(shakaPlayer);

    shakaPlayer.load(streamUrl);

    const plyrPlayer = new Plyr(videoElement);
  };

  initPlayer();
</script>

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Using P2P Media Loader with npmUsing P2P Media Loader with CDN via JavaScript Modules