wlib · July 14, 2024 02:37 · Jul 14, 2024
diff --git a/m3u8-to-ffmpeg-zip.js b/m3u8-to-ffmpeg-zip.js
@@ -0,0 +1,68 @@
+const sourceUrl = "https://m3u8-0.c-spanvideo.org/clip/clip.5081597.576.tsc.m3u8"
+
+const source = await fetch(sourceUrl)
+  .then(res => res.ok ? res.text() : undefined)
+if (!source)
+  throw new Error("it's over")
+
+const tsBlobs = await Promise.all(
+  source
+    .split("\n")
+    .flatMap(line => {
+      const trimmed = line.trim()
+      if (trimmed.startsWith("#"))
+        return []
+
+      try {
+        return [new URL(trimmed, sourceUrl)]
+      }
+      catch {
+        return []
+      }
+    })
+    .filter(url => url.pathname.endsWith(".ts"))
+    .map(url =>
+      fetch(url).then(res => {
+        if (!res.ok)
+          throw new Error("Failed to download", url)
+
+        return res.blob()
+      })
+    )
+)
+
+const tsByteArrays = await Promise.all(
+  tsBlobs.map(async blob => new Uint8Array(await blob.arrayBuffer()))
+)
+
+const { zip } = await import("https://esm.sh/[email protected]")
+
+const indexFile = tsBlobs.map((blob, i) => `file 'chunks/${i}.ts'`).join("\n")
+
+const zipFile = await new Promise(async (resolve, reject) => {
+  zip(
+    {
+      "index.txt": new TextEncoder().encode(indexFile),
+      chunks: Object.fromEntries(
+        tsByteArrays.map((byteArray, i) => [`${i}.ts`, byteArray])
+      )
+    },
+    { level: 0 },
+    (error, data) => {
+      if (error)
+        reject(error)
+      else
+        resolve(data)
+    }
+  )
+})
+
+const downloadLink = document.createElement("a")
+downloadLink.href = URL.createObjectURL(
+  new Blob([zipFile], { type: "application/zip" })
+)
+downloadLink.download = "video-source.zip"
+downloadLink.click()
+
+console.log("cd Downloads/video-source")
+console.log("ffmpeg -f concat -i index.txt -c copy video.mp4")