Restore fix audio sample rate for some xiaomi cameras #2006

pkg/xiaomi/miss/client.go

@@ -281,6 +281,24 @@ type Packet struct {
 	Payload []byte
 }
 
+func (p *Packet) SampleRate() uint32 {
+	// flag:         1 0011 000 - sample rate 16000
+	// flag: 100 00 01 0000 000 - sample rate  8000
+	v := (p.Flags >> 3) & 0b1111
+	if v != 0 {
+		return 16000
+	}
+	return 8000
+}
+
+//func (p *Packet) AudioUnknown1() byte {
+//	return byte((p.Flags >> 7) & 0b11)
+//}
+//
+//func (p *Packet) AudioUnknown2() byte {
+//	return byte((p.Flags >> 9) & 0b11)
+//}
+
 func dafangRaw(cmd uint32, args ...byte) []byte {
 	payload := tutk.ICAM(cmd, args...)
 

pkg/xiaomi/miss/producer.go

@@ -85,7 +85,7 @@ func probe(client *Client, audio bool) ([]*core.Media, error) {
 			}
 		case codecPCMA:
 			if acodec == nil {
-				acodec = &core.Codec{Name: core.CodecPCMA, ClockRate: 8000}
+				acodec = &core.Codec{Name: core.CodecPCMA, ClockRate: pkt.SampleRate()}
 			}
 		case codecOPUS:
 			if acodec == nil {