feat: add multi-destination SRT support and per-port SCTE35

backend/app/models.py

@@ -1,7 +1,7 @@
 from enum import Enum
 from datetime import datetime
 from pydantic import BaseModel, Field, ConfigDict
-from typing import Optional
+from typing import Optional, List
 
 
 class CodecType(str, Enum):
@@ -12,6 +12,15 @@ class CodecType(str, Enum):
     H264 = "h264"
 
 
+class SRTDestination(BaseModel):
+    """A single SRT output destination"""
+    model_config = ConfigDict(use_enum_values=False)
+
+    url: str = Field(..., description="SRT destination URL (srt://host:port)")
+    label: str = Field(default="", description="Human-readable label for this destination")
+    enabled: bool = Field(default=True, description="Whether this destination is active")
+
+
 class RecorderConfig(BaseModel):
     """Configuration for a recorder port"""
     model_config = ConfigDict(use_enum_values=False)
@@ -30,8 +39,13 @@ class RecorderConfig(BaseModel):
     srt_enabled: bool = Field(
         default=False, description="Enable SRT streaming output"
     )
+    # Legacy single destination (kept for backwards compat)
     srt_destination: Optional[str] = Field(
-        default=None, description="SRT destination address (host:port)"
+        default=None, description="SRT destination address (host:port) — use srt_destinations for multi"
+    )
+    # Multi-destination
+    srt_destinations: List[SRTDestination] = Field(
+        default_factory=list, description="List of SRT output destinations"
     )
     preview_enabled: bool = Field(
         default=True, description="Enable live HLS preview"
@@ -41,7 +55,7 @@ class RecorderConfig(BaseModel):
 class PortStatus(BaseModel):
     """Real-time status of a recorder port"""
     model_config = ConfigDict(use_enum_values=False)
-    
+
     port_index: int = Field(..., description="Index of the recorder port")
     is_recording: bool = Field(..., description="Whether this port is currently recording")
     frame_count: int = Field(..., description="Total frames recorded")
@@ -50,6 +64,9 @@ class PortStatus(BaseModel):
     uptime_seconds: int = Field(..., description="Recording uptime in seconds")
     current_file: str = Field(..., description="Current output file path")
     codec: CodecType = Field(..., description="Codec being used")
+    srt_destinations: List[str] = Field(
+        default_factory=list, description="Active SRT destination URLs"
+    )
 
 
 class SCTE35Marker(BaseModel):
@@ -74,3 +91,9 @@ class SCTE35Marker(BaseModel):
     webhook_url: Optional[str] = Field(
         default=None, description="Webhook URL to notify on ad break"
     )
+    port_index: Optional[int] = Field(
+        default=None, description="Port index this marker was injected on (None = global)"
+    )
+    srt_destination_url: Optional[str] = Field(
+        default=None, description="Specific SRT destination URL this marker targets (None = all)"
+    )