From a5838f3c05a3392a31c939c12f647739ef2a5544 Mon Sep 17 00:00:00 2001
From: wukko <me@wukko.me>
Date: Fri, 20 Jun 2025 18:16:32 +0600
Subject: [PATCH] api/stream/types: add subtitles & metadata to remux

---
 api/src/stream/types.js | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/api/src/stream/types.js b/api/src/stream/types.js
index 0c71ae2d..7b5a5774 100644
--- a/api/src/stream/types.js
+++ b/api/src/stream/types.js
@@ -189,6 +189,8 @@ const remux = async (streamInfo, res) => {
     );
 
     try {
+        const format = streamInfo.filename.split('.').pop();
+
         let args = [
             '-loglevel', '-8',
             '-headers', toRawHeaders(getHeaders(streamInfo.service)),
@@ -198,10 +200,16 @@ const remux = async (streamInfo, res) => {
             args.push('-seekable', '0')
         }
 
-        args.push(
-            '-i', streamInfo.urls,
-            '-c:v', 'copy',
-        )
+        args.push('-i', streamInfo.urls);
+
+        if (streamInfo.subtitles) {
+            args.push(
+                '-i', streamInfo.subtitles,
+                '-c:s', format === 'mp4' ? 'mov_text' : 'webvtt',
+            );
+        };
+
+        args.push('-c:v', 'copy');
 
         if (streamInfo.type === "mute") {
             args.push('-an');
@@ -214,11 +222,14 @@ const remux = async (streamInfo, res) => {
             args.push('-bsf:a', 'aac_adtstoasc');
         }
 
-        let format = streamInfo.filename.split('.').pop();
         if (format === "mp4") {
             args.push('-movflags', 'faststart+frag_keyframe+empty_moov')
         }
 
+        if (streamInfo.metadata) {
+            args = args.concat(convertMetadataToFFmpeg(streamInfo.metadata));
+        }
+
         args.push('-f', format, 'pipe:3');
 
         process = spawn(...getCommand(args), {