系统生成的playlist.m3u没有#EXTM3U标识

[lsn752]

上个帖子关闭不能跟贴了，源文件开头有#EXTM3U，生成的playlist.m3u没有这个标识。
比如下面的文件，系统生成的playlist.m3u就没有#EXTM3U标识
#EXTM3U x-tvg-url="https://e.erw.cc/e.xml.gz"
#EXTINF:-1 group-title="常看频道组播" tvg-id="CCTV2" tvg-name="CCTV2" tvg-logo="http://192.168.1.1/iptv/logo/CCTV2.png" catchup="default" catchup-source="rtsp://150.138.8.132/PLTV/88888888/224/3221226173/10000100000000060000000003110715_0.smil?playseek=${(b)yyyyMMddHHmmss}-${(e)yyyyMMddHHmmss}",CCTV-2高清
http://192.168.1.1:8888/udp/239.21.1.151:5002
新版已经有#EXTM3U 标识了，但还没有x-tvg-url="https://e.erw.cc/e.xml.gz"。转换的playlist.m3u内容如下：
#EXTM3U

#EXTINF:-1 group-title="常看频道组播" tvg-id="CCTV2" tvg-name="CCTV2" tvg-logo="http://192.168.1.1/iptv/logo/CCTV2.png" catchup="default" catchup-source="http://192.168.1.1:8888/%E5%B8%B8%E7%9C%8B%E9%A2%91%E9%81%93%E7%BB%84%E6%92%AD/CCTV-2%E9%AB%98%E6%B8%85/catchup?playseek=${(b)yyyyMMddHHmmss}-${(e)yyyyMMddHHmmss}",CCTV-2高清
http://192.168.1.1:8888/%E5%B8%B8%E7%9C%8B%E9%A2%91%E9%81%93%E7%BB%84%E6%92%AD/CCTV-2%E9%AB%98%E6%B8%85

[stackia]

贴一下启动时完整的 DEBUG 日志吧

[lsn752]

14:15:46 INFO [Supervisor] Status tracking initialized
14:15:46 INFO [Supervisor] Starting rtp2httpd with 1 worker(s)
14:15:46 INFO [Worker 0] Worker 0 started (pid=14131)
14:15:46 INFO [Worker 0] Listening on 0.0.0.0 port 8888
14:15:46 INFO [Worker 0] Listening on :: port 8888
14:15:46 INFO [Worker 0] Zero-copy: MSG_ZEROCOPY enabled for better performance
14:15:46 INFO [Worker 0] Server initialization complete, ready to accept connections
14:15:46 INFO [Supervisor] Spawned worker 0 with pid 14131
14:15:46 INFO [Supervisor] Entering monitoring loop
14:15:46 INFO [Worker 0] Initial external M3U load for worker 0
14:15:46 DEBUG [Worker 0] Starting async reload of external M3U: file:///home/data/iptv2/iptv2.m3u
14:15:46 DEBUG [Worker 0] file:// fetch completed synchronously (409 bytes): file:///home/data/iptv2/iptv2.m3u
14:15:46 DEBUG [Worker 0] Async external M3U fetch completed, processing content
14:15:46 INFO [Worker 0] Freed 0 external M3U services
14:15:46 INFO [Worker 0] Parsing M3U content from: file:///home/data/iptv2/iptv2.m3u
14:15:46 DEBUG [Worker 0] Creating service from M3U: 常看频道组播/CCTV-2高清 -> 常看频道组播/CCTV-2高清 udp://239.21.1.151:5002
14:15:46 DEBUG [Worker 0] Parsed RTP URL: mcast=239.21.1.151:5002
14:15:46 DEBUG [Worker 0] Created RTP service from URL: udp://239.21.1.151:5002
14:15:46 DEBUG [Worker 0] Service created: 常看频道组播/CCTV-2高清 (RTP) [external]
14:15:46 DEBUG [Worker 0] Creating service from M3U: 常看频道组播/CCTV-2高清/catchup -> 常看频道组播/CCTV-2高清/catchup rtsp://150.138.8.132/PLTV/88888888/224/3221226173/10000100000000060000000003110715_0.smil?playseek=${(b)yyyyMMddHHmmss}-${(e)yyyyMMddHHmmss}
14:15:46 DEBUG [Worker 0] Heuristic: detected playseek parameter
14:15:46 DEBUG [Worker 0] No valid format found for playseek, using first value as fallback: ${(b)yyyyMMddHHmmss}-${(e)yyyyMMddHHmmss}
14:15:46 DEBUG [Worker 0] Parsed RTSP URL: rtsp://150.138.8.132/PLTV/88888888/224/3221226173/10000100000000060000000003110715_0.smil
14:15:46 DEBUG [Worker 0] Parsed playseek parameter: ${(b)yyyyMMddHHmmss}-${(e)yyyyMMddHHmmss}
14:15:46 DEBUG [Worker 0] Service created: 常看频道组播/CCTV-2高清/catchup (RTSP) [external]
14:15:46 INFO [Worker 0] Parsed 1 M3U entries, generated transformed playlist (414 bytes)
14:15:46 INFO [Worker 0] External M3U reloaded successfully (async)
14:15:46 DEBUG [Worker 0] Fetch completed immediately (likely file:// URL)
14:15:47 INFO [Worker 0] New client 192.168.1.1:46366 requested URL: /status/sse (method: GET)
16:10:32 INFO [Worker 0] New client 192.168.1.1:39924 requested URL: /player (method: GET)
16:10:32 DEBUG [Worker 0] Initialized embedded files hashmap with 7 files
16:10:33 INFO [Worker 0] New client 192.168.1.1:39934 requested URL: /playlist.m3u (method: GET)
16:10:33 DEBUG [Worker 0] Generating M3U with base URL: http://192.168.1.1:8888/
16:10:33 INFO [Worker 0] New client 192.168.1.1:39948 requested URL: /%E5%B8%B8%E7%9C%8B%E9%A2%91%E9%81%93%E7%BB%84%E6%92%AD/CCTV-2%E9%AB%98%E6%B8%85 (method: GET)
16:10:33 INFO [Worker 0] Service matched: 常看频道组播/CCTV-2高清
16:10:33 INFO [Worker 0] Multicast: Successfully joined group
16:10:33 DEBUG [Worker 0] Multicast: Socket registered with epoll
16:10:33 DEBUG [Worker 0] FCC State: INIT -> MCAST_ACTIVE (Direct multicast)
16:10:42 INFO [Worker 0] New client 192.168.1.1:54850 requested URL: /player (method: GET)
16:10:42 DEBUG [Worker 0] Client disconnected
16:10:42 DEBUG [Worker 0] RTSP: Cleanup called in state 0, skipping (already cleaning up or done)
16:10:42 DEBUG [Worker 0] RTSP: Session cleanup complete
16:10:42 DEBUG [Worker 0] Multicast socket closed
16:10:44 INFO [Worker 0] New client 192.168.1.1:54854 requested URL: /playlist.m3u (method: GET)
16:10:44 INFO [Worker 0] New client 192.168.1.1:54868 requested URL: /%E5%B8%B8%E7%9C%8B%E9%A2%91%E9%81%93%E7%BB%84%E6%92%AD/CCTV-2%E9%AB%98%E6%B8%85 (method: GET)
16:10:44 INFO [Worker 0] Service matched: 常看频道组播/CCTV-2高清
16:10:44 INFO [Worker 0] Multicast: Successfully joined group
16:10:44 DEBUG [Worker 0] Multicast: Socket registered with epoll
16:10:44 DEBUG [Worker 0] FCC State: INIT -> MCAST_ACTIVE (Direct multicast)

[stackia]

请 AI 分析一下这段日志有没有什么线索。未出现 Found EPG URL in M3U header 是不是意味着原始 m3u 里面确实缺少 x-tvg-url？

[github-actions]

根据你提供的 DEBUG 日志和代码分析，我可以明确地回答 stackia 的问题：

是的，你的分析完全正确。 未出现 Found EPG URL in M3U header 这条日志，说明原始 M3U 文件（/home/data/iptv2/iptv2.m3u）中确实没有 x-tvg-url 属性。

日志分析证据

从你的日志可以看到：

14:15:46 DEBUG [Worker 0] file:// fetch completed synchronously (409 bytes): file:///home/data/iptv2/iptv2.m3u
14:15:46 DEBUG [Worker 0] Async external M3U fetch completed, processing content
14:15:46 INFO [Worker 0] Freed 0 external M3U services
14:15:46 INFO [Worker 0] Parsing M3U content from: file:///home/data/iptv2/iptv2.m3u

接下来直接就开始解析频道条目了，完全没有出现 Found EPG URL in M3U header 这条日志。

代码逻辑说明

根据 src/m3u.c 的代码（第 949-959 行），M3U 解析器在遇到 #EXTM3U 头部时会：

1. 调用 extract_tvg_url(line) 尝试提取 x-tvg-url 属性
2. 如果成功提取到 URL，必然会输出 logger(LOG_INFO, "Found EPG URL in M3U header: %s", tvg_url);
3. 然后调用 epg_set_url(tvg_url) 设置 EPG URL

由于日志中没有这条信息，说明 extract_tvg_url() 返回了 NULL，也就是文件中不存在 x-tvg-url 属性。

建议

请检查你的源 M3U 文件 /home/data/iptv2/iptv2.m3u 的实际内容，确认第一行是否真的包含 x-tvg-url="https://e.erw.cc/e.xml.gz"。你可以用以下命令查看：

head -n 1 /home/data/iptv2/iptv2.m3u

如果文件确实包含 x-tvg-url，但解析器没有识别到，那可能是格式问题（例如额外的空格、特殊字符等）。请把第一行的完整内容贴出来，我们可以进一步分析。

[stackia]

你可能需要贴一下 iptv2.m3u 这个文件完整内容

[lsn752]

感谢，基本确定是采用了unix格式的问题，换成dos格式问题解决。它们的换行符不一样，‌换行符差异：‌ UNIX系统使用换行符（LF，ASCII 10，十六进制 0A）表示行末，而DOS/Windows系统使用回车换行符（CR+LF，ASCII 13+10，十六进制 0D+0A）。后续希望能支持unix格式。