Initial commit: LiveStream Platform

Backend: FastAPI + SQLAlchemy + SQLite
Frontend: React + Vite + Ant Design (serif Anthropic theme)
Media server: MediaMTX with edge node support
Load balancing: round-robin / weighted / least-conn
Multicast detection with automatic fallback
Transcoding support via FFmpeg (configurable quality)
hls.js player with line & quality switching
Admin panel with password auth
Windows compatible scripts

backend/services/media_service.py

@@ -0,0 +1,48 @@
+import httpx
+import asyncio
+from config import settings
+
+
+class MediaMTXService:
+    @staticmethod
+    def get_rtmp_url(stream_key: str) -> str:
+        return f"rtmp://{settings.media_origin_host}:{settings.media_origin_rtmp_port}/live/{stream_key}"
+
+    @staticmethod
+    def get_hls_url(node: dict, stream_key: str) -> str:
+        return f"http://{node['host']}:{node['hls_port']}/{stream_key}/index.m3u8"
+
+    @staticmethod
+    async def get_origin_status(stream_key: str) -> dict | None:
+        try:
+            async with httpx.AsyncClient(timeout=httpx.Timeout(5)) as client:
+                resp = await client.get(
+                    f"http://{settings.media_origin_host}:{settings.media_origin_api_port}/v3/paths/list"
+                )
+                if resp.status_code == 200:
+                    data = resp.json()
+                    for item in data.get("items", []):
+                        if item.get("name") == stream_key:
+                            return {"ready": item.get("ready", False), "source_ready": item.get("sourceReady", False)}
+        except Exception:
+            return None
+        return None
+
+    @staticmethod
+    async def get_edge_status(node: dict, stream_key: str) -> dict | None:
+        try:
+            async with httpx.AsyncClient(timeout=httpx.Timeout(3)) as client:
+                resp = await client.get(
+                    f"http://{node['host']}:{node['api_port']}/v3/paths/list"
+                )
+                if resp.status_code == 200:
+                    data = resp.json()
+                    for item in data.get("items", []):
+                        if item.get("name") == stream_key:
+                            return {"ready": item.get("ready", False), "readers": item.get("readersCount", 0)}
+        except Exception:
+            return None
+        return None
+
+
+media_service = MediaMTXService()