initial code commit

bluesky/video.js

@@ -0,0 +1,38 @@
+import ffmpeg from 'fluent-ffmpeg';
+import path from 'path';
+import fs from 'fs';
+
+const baseVideoCachePath = path.resolve('cache', 'videos');
+if (!fs.existsSync(baseVideoCachePath)) fs.mkdirSync(baseVideoCachePath, { recursive: true });
+
+// function to convert .m3u8 to .mp4
+function convertM3U8ToMP4(inpurl, outputPath) {
+    return new Promise((resolve, reject) => {
+        ffmpeg(inpurl)
+            .outputOptions('-c copy') // copies the codec without re-encoding for faster processing
+            .output(outputPath)
+            .on('end', resolve)
+            .on('error', reject)
+            .run();
+    });
+}
+
+
+// clean up the cache
+export async function clearCache(...vids) {
+    const arr = (vids?.length) ? vids : fs.readdirSync(baseVideoCachePath);
+    await Promise.all(arr.map((p) => new Promise(resolve => fs.rm(path.resolve(baseVideoCachePath, p), resolve))));
+}
+
+
+export default async function convertAndServe(fname, m3u8url) {
+    try {
+        const newPath = path.resolve(baseVideoCachePath, fname);
+        await convertM3U8ToMP4(m3u8url, newPath);
+        return fname;
+    }
+    catch (err) {
+        console.error(err);
+        return null;
+    }
+}