From 7e3605a8f17ecba2a0a1f804970fc9b7464e87a2 Mon Sep 17 00:00:00 2001
From: Cesar Mendivil <cesar_mendivil@epamneoris.com>
Date: Sun, 15 Feb 2026 16:03:07 -0700
Subject: [PATCH] Refactor M3U8 playlist generation for improved readability
 and maintainability

---
 src/video.js | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/src/video.js b/src/video.js
index a2361dd..7d2047f 100644
--- a/src/video.js
+++ b/src/video.js
@@ -527,25 +527,24 @@ function video( channelService, fillerDB, db, programmingService, activeChannelS
 
         var data = "#EXTM3U\n"
 
-        data += `#EXT-X-VERSION:3
-        #EXT-X-MEDIA-SEQUENCE:0
-        #EXT-X-ALLOW-CACHE:YES
-        #EXT-X-TARGETDURATION:60
-        #EXT-X-PLAYLIST-TYPE:VOD\n`;
+        data += `#EXT-X-VERSION:3\n#EXT-X-MEDIA-SEQUENCE:0\n#EXT-X-ALLOW-CACHE:YES\n#EXT-X-TARGETDURATION:60\n#EXT-X-PLAYLIST-TYPE:VOD\n`;
 
         let ffmpegSettings = db['ffmpeg-settings'].find()[0]
 
-        cur ="59.0";
+        // Duration to advertise for each pseudo-segment (seconds). Keep slightly
+        // below TARGETDURATION to avoid premature reloads.
+        let cur = "59.0";
+
+        function addSegment(url) {
+            data += `#EXTINF:${cur},\n${url}\n`;
+        }
 
         if ( ffmpegSettings.enableFFMPEGTranscoding === true) {
-            //data += `#EXTINF:${cur},\n`;
-            data += `${req.protocol}://${req.get('host')}/stream?channel=${channelNum}&first=0&m3u8=1&session=${sessionId}\n`;
+            addSegment(`${req.protocol}://${req.get('host')}/stream?channel=${channelNum}&first=0&m3u8=1&session=${sessionId}`)
         }
-        //data += `#EXTINF:${cur},\n`;
-        data += `${req.protocol}://${req.get('host')}/stream?channel=${channelNum}&first=1&m3u8=1&session=${sessionId}\n`
+        addSegment(`${req.protocol}://${req.get('host')}/stream?channel=${channelNum}&first=1&m3u8=1&session=${sessionId}`)
         for (var i = 0; i < maxStreamsToPlayInARow - 1; i++) {
-            //data += `#EXTINF:${cur},\n`;
-            data += `${req.protocol}://${req.get('host')}/stream?channel=${channelNum}&m3u8=1&session=${sessionId}\n`
+            addSegment(`${req.protocol}://${req.get('host')}/stream?channel=${channelNum}&m3u8=1&session=${sessionId}`)
         }
 
         res.send(data)