From 5835344e30557087e409845d9e967347402533b8 Mon Sep 17 00:00:00 2001
From: giles <giles.bradshaw@sigyl.com>
Date: Wed, 4 Feb 2026 20:50:14 +0000
Subject: [PATCH] Add audio support to MultiResolutionHLSOutput

---
 streaming/multi_res_output.py    | 14 ++++++++++++++
 streaming/stream_sexp_generic.py |  3 ++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/streaming/multi_res_output.py b/streaming/multi_res_output.py
index 85988da..142e8bf 100644
--- a/streaming/multi_res_output.py
+++ b/streaming/multi_res_output.py
@@ -58,6 +58,7 @@ class MultiResolutionHLSOutput:
         segment_duration: float = 4.0,
         ipfs_gateway: str = "https://ipfs.io/ipfs",
         on_playlist_update: callable = None,
+        audio_source: str = None,
     ):
         self.output_dir = Path(output_dir)
         self.output_dir.mkdir(parents=True, exist_ok=True)
@@ -66,6 +67,7 @@ class MultiResolutionHLSOutput:
         self.segment_duration = segment_duration
         self.ipfs_gateway = ipfs_gateway.rstrip("/")
         self._on_playlist_update = on_playlist_update
+        self.audio_source = audio_source
         self._is_open = True
         self._frame_count = 0
 
@@ -187,6 +189,10 @@ class MultiResolutionHLSOutput:
             "-i", "-",
         ]
 
+        # Add audio input if provided
+        if self.audio_source:
+            cmd.extend(["-i", str(self.audio_source)])
+
         # Scale if not original resolution
         if quality.width != self.source_width or quality.height != self.source_height:
             cmd.extend([
@@ -206,6 +212,14 @@ class MultiResolutionHLSOutput:
             "-sc_threshold", "0",  # Disable scene change detection for consistent segments
         ])
 
+        # Add audio encoding if audio source provided
+        if self.audio_source:
+            cmd.extend([
+                "-c:a", "aac",
+                "-b:a", "128k",
+                "-shortest",  # Stop when shortest stream ends
+            ])
+
         # HLS output
         cmd.extend([
             "-f", "hls",
diff --git a/streaming/stream_sexp_generic.py b/streaming/stream_sexp_generic.py
index 4b0fe0e..8cf0ae9 100644
--- a/streaming/stream_sexp_generic.py
+++ b/streaming/stream_sexp_generic.py
@@ -966,7 +966,8 @@ class StreamInterpreter:
                     source_size=(w, h),
                     fps=fps,
                     ipfs_gateway=ipfs_gateway,
-                    on_playlist_update=self.on_playlist_update
+                    on_playlist_update=self.on_playlist_update,
+                    audio_source=audio,
                 )
             # Fallback to GPU single-resolution if multi-res not available
             elif GPUHLSOutput is not None and check_gpu_encode_available():