From a21c2cbd142a9b6bcc6f78817d9a1456a81d816c Mon Sep 17 00:00:00 2001
From: Milos Pesic <milos.pesic@livekit.io>
Date: Fri, 9 Oct 2026 11:15:44 +0200
Subject: [PATCH] egressobs: report audio_only for v2 MediaSource without video

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 .changeset/egressobs-media-audio-only.md |  6 ++
 observability/egressobs/egress.go        |  3 +-
 observability/egressobs/egress_test.go   | 74 +++++++++++++++++++++++-
 3 files changed, 80 insertions(+), 3 deletions(-)
 create mode 100644 .changeset/egressobs-media-audio-only.md

diff --git a/.changeset/egressobs-media-audio-only.md b/.changeset/egressobs-media-audio-only.md
new file mode 100644
index 000000000..d1e49b84f
--- /dev/null
+++ b/.changeset/egressobs-media-audio-only.md
@@ -0,0 +1,6 @@
+---
+"github.com/livekit/protocol": patch
+"@livekit/protocol": patch
+---
+
+`egressobs.GetAudioOnly` reports `true` for v2 egress and replay requests with a `MediaSource` that has no video selector
diff --git a/observability/egressobs/egress.go b/observability/egressobs/egress.go
index 059f12370..10bd51808 100644
--- a/observability/egressobs/egress.go
+++ b/observability/egressobs/egress.go
@@ -201,5 +201,6 @@ func GetAudioOnly(info *livekit.EgressInfo) bool {
 }
 
 func getAudioOnlyV2(r egress.EgressRequest) bool {
-	return r.GetTemplate().GetAudioOnly() || r.GetWeb().GetAudioOnly()
+	return r.GetTemplate().GetAudioOnly() || r.GetWeb().GetAudioOnly() ||
+		(r.GetMedia() != nil && r.GetMedia().GetVideo() == nil)
 }
diff --git a/observability/egressobs/egress_test.go b/observability/egressobs/egress_test.go
index 0a65f1eb3..9642632df 100644
--- a/observability/egressobs/egress_test.go
+++ b/observability/egressobs/egress_test.go
@@ -242,12 +242,67 @@ func TestGetAudioOnly(t *testing.T) {
 			audioOnly: true,
 		},
 		{
-			name: "v2 Media returns false",
+			name: "v2 Media audio routes only",
 			info: &livekit.EgressInfo{
 				Request: &livekit.EgressInfo_Egress{
 					Egress: &livekit.StartEgressRequest{
 						Source: &livekit.StartEgressRequest_Media{
-							Media: &livekit.MediaSource{},
+							Media: &livekit.MediaSource{
+								Audio: &livekit.AudioConfig{
+									Routes: []*livekit.AudioRoute{{
+										Match:   &livekit.AudioRoute_ParticipantIdentity{ParticipantIdentity: "caller"},
+										Channel: livekit.AudioChannel_AUDIO_CHANNEL_LEFT,
+									}},
+								},
+							},
+						},
+					},
+				},
+			},
+			audioOnly: true,
+		},
+		{
+			name: "v2 Media capture all audio",
+			info: &livekit.EgressInfo{
+				Request: &livekit.EgressInfo_Egress{
+					Egress: &livekit.StartEgressRequest{
+						Source: &livekit.StartEgressRequest_Media{
+							Media: &livekit.MediaSource{
+								Audio: &livekit.AudioConfig{CaptureAll: true},
+							},
+						},
+					},
+				},
+			},
+			audioOnly: true,
+		},
+		{
+			name: "v2 Media video track",
+			info: &livekit.EgressInfo{
+				Request: &livekit.EgressInfo_Egress{
+					Egress: &livekit.StartEgressRequest{
+						Source: &livekit.StartEgressRequest_Media{
+							Media: &livekit.MediaSource{
+								Video: &livekit.MediaSource_VideoTrackId{VideoTrackId: "TR_video"},
+								Audio: &livekit.AudioConfig{CaptureAll: true},
+							},
+						},
+					},
+				},
+			},
+			audioOnly: false,
+		},
+		{
+			name: "v2 Media participant video",
+			info: &livekit.EgressInfo{
+				Request: &livekit.EgressInfo_Egress{
+					Egress: &livekit.StartEgressRequest{
+						Source: &livekit.StartEgressRequest_Media{
+							Media: &livekit.MediaSource{
+								Video: &livekit.MediaSource_ParticipantVideo{
+									ParticipantVideo: &livekit.ParticipantVideo{Identity: "speaker"},
+								},
+							},
 						},
 					},
 				},
@@ -267,6 +322,21 @@ func TestGetAudioOnly(t *testing.T) {
 			},
 			audioOnly: true,
 		},
+		{
+			name: "Replay Media audio only",
+			info: &livekit.EgressInfo{
+				Request: &livekit.EgressInfo_Replay{
+					Replay: &livekit.ExportReplayRequest{
+						Source: &livekit.ExportReplayRequest_Media{
+							Media: &livekit.MediaSource{
+								Audio: &livekit.AudioConfig{CaptureAll: true},
+							},
+						},
+					},
+				},
+			},
+			audioOnly: true,
+		},
 		{
 			name: "Track request returns false",
 			info: &livekit.EgressInfo{