feat: add M3U global catchup configuration support

config/config.ini

@@ -15,6 +15,10 @@ open_update_time = True
 open_url_info = False
 # 开启 EPG 功能，支持频道显示预告内容；可选值: True, False | Enable EPG function, support channel display preview content; Optional values: True, False
 open_epg = True
+# M3U 全局 catchup 类型，留空则不输出；可选值: append、shift、default、vod 等 | M3U global catchup type, leave empty to not output; Optional values: append, shift, default, vod, etc.
+catchup =
+# M3U 全局 catchup-source 地址模板，留空则不输出 | M3U global catchup-source url template, leave empty to not output
+catchup_source =
 # 开启转换生成 m3u 文件类型结果链接，支持显示频道图标；可选值: True, False | Enable to convert and generate m3u file type result links, support display channel icons; Optional values: True, False
 open_m3u_result = True
 # 单个频道接口数量 | Number of interfaces per channel

utils/config.py

@@ -249,6 +249,14 @@ def open_headers(self):
     def open_epg(self):
         return self.config.getboolean("Settings", "open_epg", fallback=True)
 
+    @property
+    def catchup(self):
+        return self.config.get("Settings", "catchup", fallback="").strip()
+
+    @property
+    def catchup_source(self):
+        return self.config.get("Settings", "catchup_source", fallback="").strip()
+
     @property
     def speed_test_limit(self):
         return self.config.getint("Settings", "speed_test_limit", fallback=5)

utils/tools.py

@@ -444,7 +444,15 @@ def convert_to_m3u(path=None, first_channel_name=None, data=None):
     """
     if os.path.exists(path):
         with open(path, "r", encoding="utf-8") as file:
-            m3u_output = f'#EXTM3U x-tvg-url="{get_epg_url()}"\n' if config.open_epg else "#EXTM3U\n"
+            # 构建 #EXTM3U 行的属性
+            extm3u_attrs = []
+            if config.open_epg:
+                extm3u_attrs.append(f'x-tvg-url="{get_epg_url()}"')
+            if config.catchup:
+                extm3u_attrs.append(f'catchup="{config.catchup}"')
+            if config.catchup_source:
+                extm3u_attrs.append(f'catchup-source="{config.catchup_source}"')
+            m3u_output = f'#EXTM3U {" ".join(extm3u_attrs)}\n' if extm3u_attrs else "#EXTM3U\n"
             current_group = None
             logo_url = get_logo_url()
             from_fanmingming = "https://raw.githubusercontent.com/fanmingming/live/main/tv" in logo_url