Add backchannel support for rtsp server

2024-11-03 16:33:08 +01:00
parent 2c34a17d88
commit f13aa21d0f
4 changed files with 76 additions and 19 deletions
@@ -8,6 +8,7 @@ import (

 	"github.com/AlexxIT/go2rtc/internal/app"
 	"github.com/AlexxIT/go2rtc/internal/streams"
+	"github.com/AlexxIT/go2rtc/pkg/aac"
 	"github.com/AlexxIT/go2rtc/pkg/core"
 	"github.com/AlexxIT/go2rtc/pkg/rtsp"
 	"github.com/AlexxIT/go2rtc/pkg/tcp"
@@ -184,6 +185,23 @@ func tcpHandler(conn *rtsp.Conn) {
 				}
 			}

+            if query.Get("backchannel") == "1" {
+                conn.Medias = append(conn.Medias, &core.Media{
+                    Kind:      core.KindAudio,
+                    Direction: core.DirectionRecvonly,
+                    Codecs: []*core.Codec{
+						{Name: core.CodecOpus, ClockRate: 48000, Channels: 2},
+						{Name: core.CodecPCM, ClockRate: 16000},
+						{Name: core.CodecPCMA, ClockRate: 16000},
+						{Name: core.CodecPCMU, ClockRate: 16000},
+						{Name: core.CodecPCM, ClockRate: 8000},
+						{Name: core.CodecPCMA, ClockRate: 8000},
+						{Name: core.CodecPCMU, ClockRate: 8000},
+						{Name: core.CodecAAC, ClockRate: 16000, FmtpLine: aac.FMTP + "1408"},
+                    },
+                })
+            }
+
 			if s := query.Get("pkt_size"); s != "" {
 				conn.PacketSize = uint16(core.Atoi(s))
 			}