diff --git a/pkg/flv/muxer.go b/pkg/flv/muxer.go
index 98794265..b04d8981 100644
--- a/pkg/flv/muxer.go
+++ b/pkg/flv/muxer.go
@@ -34,7 +34,7 @@ func (m *Muxer) GetInit() []byte {
 		switch codec.Name {
 		case core.CodecH264:
 			b[4] |= FlagsVideo
-			obj["videocodecid"] = CodecAVC
+			obj["videocodecid"] = CodecH264
 
 		case core.CodecAAC:
 			b[4] |= FlagsAudio
diff --git a/pkg/flv/producer.go b/pkg/flv/producer.go
index 33762d20..9748c94a 100644
--- a/pkg/flv/producer.go
+++ b/pkg/flv/producer.go
@@ -44,7 +44,9 @@ const (
 	TagData  = 18
 
 	CodecAAC = 10
-	CodecAVC = 7
+
+	CodecH264 = 7
+	CodecHEVC = 12
 )
 
 const (
@@ -207,15 +209,18 @@ func (c *Producer) probe() error {
 			} else {
 				_ = pkt.Payload[0] >> 4 // FrameType
 
-				if codecID := pkt.Payload[0] & 0b1111; codecID != CodecAVC {
-					continue
-				}
-
 				if packetType := pkt.Payload[1]; packetType != PacketTypeAVCHeader { // check if header
 					continue
 				}
 
-				codec = h264.ConfigToCodec(pkt.Payload[5:])
+				switch codecID := pkt.Payload[0] & 0b1111; codecID {
+				case CodecH264:
+					codec = h264.ConfigToCodec(pkt.Payload[5:])
+				case CodecHEVC:
+					codec = h265.ConfigToCodec(pkt.Payload[5:])
+				default:
+					continue
+				}
 			}
 
 			media := &core.Media{