feat: added smart auto-transcoding with probe-based routing and MKV/remux support

2026-01-10 00:35:42 -08:00
parent 53a54c760c
commit 346a0519e9
10 changed files with 452 additions and 5 deletions
@@ -40,9 +40,13 @@ router.get('/', (req, res) => {
        '-reconnect_streamed', '1',
        '-reconnect_delay_max', '5',
        '-i', url,
-        // Map all streams explicitly
-        '-map', '0',
-        // Copy ALL streams without re-encoding
+        // STRICT MAPPING: Only map video and audio, ignore subtitles/data/attachments
+        // This prevents remux failure when source container has incompatible subtitle tracks (e.g. MKV -> MP4)
+        '-map', '0:v',
+        '-map', '0:a',
+        // Drop subtitles (-sn) and data (-dn) explicitly
+        '-sn', '-dn',
+        // Copy streams without re-encoding
        '-c', 'copy',
        // NOTE: We intentionally do NOT use -bsf:a aac_adtstoasc here
        // That filter only works for AAC audio and breaks AC3/EAC3/MP3.