初始提交：短剧库源码（含转码优化 ultrafast）

2026-09-17 19:09:08 +08:00
commit 07dc0f1059
247 changed files with 43242 additions and 0 deletions
@@ -0,0 +1,76 @@
+(() => {
+  function createMediaLoader(environment, video, onError) {
+    let hls = null;
+    let generation = 0;
+    let cancelPending = null;
+    function destroy() {
+      generation++;
+      if (cancelPending) cancelPending();
+      cancelPending = null;
+      if (hls) hls.destroy();
+      hls = null;
+    }
+    function failure(message, network) {
+      const error = new Error(message);
+      error.playbackNetwork = network;
+      error.playbackDecode = !network;
+      return error;
+    }
+    async function load(plan, nativeHls, signal, offset = 0) {
+      destroy();
+      const current = generation;
+      if (signal.aborted) throw new DOMException('已取消', 'AbortError');
+      if (plan.player === 'mp4' && plan.mime && !video.canPlayType(plan.mime)) throw failure('浏览器不支持此媒体编码，正在尝试兼容播放', false);
+      await new Promise((resolve, reject) => {
+        let settled = false;
+        const timer = setTimeout(() => finish(failure('媒体加载超时，请重试', true)), 60000);
+        const abort = () => finish(new DOMException('已取消', 'AbortError'));
+        const metadata = () => finish();
+        const failed = () => finish(failure('浏览器无法读取此视频', video.error?.code === 2));
+        function finish(error) {
+          if (settled) return;
+          settled = true;
+          clearTimeout(timer);
+          signal.removeEventListener('abort', abort);
+          video.removeEventListener('loadedmetadata', metadata);
+          video.removeEventListener('error', failed);
+          cancelPending = null;
+          if (error && current === generation) {
+            generation++;
+            if (hls) hls.destroy();
+            hls = null;
+          }
+          if (error) reject(error); else resolve();
+        }
+        cancelPending = abort;
+        signal.addEventListener('abort', abort, {once: true});
+        video.addEventListener('loadedmetadata', metadata, {once: true});
+        video.addEventListener('error', failed, {once: true});
+        try {
+          if (plan.player === 'hls' && !nativeHls) {
+            const Hls = environment.Hls;
+            if (!Hls?.isSupported()) {finish(failure('此浏览器没有可用的 HLS 播放通道', false)); return;}
+            hls = new Hls({enableWorker: true, lowLatencyMode: false, maxBufferLength: 30, maxMaxBufferLength: 60, backBufferLength: 20,
+              manifestLoadingMaxRetry: 1, levelLoadingMaxRetry: 1, fragLoadingMaxRetry: 1, startPosition: Math.max(0, Number(offset) || 0)});
+            hls.on(Hls.Events.ERROR, (_, data) => {
+              if (!data.fatal || current !== generation || signal.aborted) return;
+              const error = failure(data.type === Hls.ErrorTypes.NETWORK_ERROR ? '视频连接失败，请重试' : '此媒体需要兼容播放', data.type === Hls.ErrorTypes.NETWORK_ERROR);
+              if (!settled) finish(error); else onError(error);
+            });
+            hls.on(Hls.Events.MEDIA_ATTACHED, () => {
+              if (current !== generation || signal.aborted) return;
+              try {hls.loadSource(plan.url);} catch (error) {finish(failure(error.message || '无法加载 HLS 媒体', false));}
+            });
+            hls.attachMedia(video);
+          } else {
+            video.src = plan.url;
+            video.load();
+          }
+        } catch (error) {finish(failure(error.message || '无法初始化播放器', false));}
+      });
+    }
+    return {load, destroy};
+  }
+  if (typeof module !== 'undefined' && module.exports) module.exports = createMediaLoader;
+  else window.JukuPlayerMedia = createMediaLoader;
+})();