Add support FLAC codec to MP4/MSE

pkg/core/codec.go

@@ -99,6 +99,14 @@ func UnmarshalCodec(md *sdp.MediaDescription, payloadType string) *Codec {
 		case "8":
 			c.Name = CodecPCMA
 			c.ClockRate = 8000
+		case "10":
+			c.Name = CodecPCM
+			c.ClockRate = 44100
+			c.Channels = 2
+		case "11":
+			c.Name = CodecPCM
+			c.ClockRate = 44100
+			c.Channels = 1
 		case "14":
 			c.Name = CodecMP3
 			c.ClockRate = 44100

pkg/core/core.go

@@ -27,7 +27,8 @@ const (
 	CodecMP3  = "MPA" // payload: 14, aka MPEG-1 Layer III
 	CodecPCM  = "L16" // Linear PCM
 
-	CodecELD = "ELD" // AAC-ELD
+	CodecELD  = "ELD" // AAC-ELD
+	CodecFLAC = "FLAC"
 
 	CodecAll = "ALL"
 	CodecAny = "ANY"

pkg/core/media.go

@@ -93,7 +93,7 @@ func GetKind(name string) string {
 	switch name {
 	case CodecH264, CodecH265, CodecVP8, CodecVP9, CodecAV1, CodecJPEG:
 		return KindVideo
-	case CodecPCMU, CodecPCMA, CodecAAC, CodecOpus, CodecG722, CodecMP3, CodecELD:
+	case CodecPCMU, CodecPCMA, CodecAAC, CodecOpus, CodecG722, CodecMP3, CodecPCM, CodecELD, CodecFLAC:
 		return KindAudio
 	}
 	return ""