Remove PCMU for two way for DVRIP source #1111

Author: AlexxIT

pkg/dvrip/client.go

@@ -114,7 +114,7 @@ func (c *Client) Play() error {
 }
 
 func (c *Client) Talk() error {
-	format := `{"Name":"OPTalk","SessionID":"0x%08X","OPTalk":{"Action":"%s","AudioFormat":{"EncodeType":"G711_ALAW"}}}` + "\x0A\x00"	
+	format := `{"Name":"OPTalk","SessionID":"0x%08X","OPTalk":{"Action":"%s","AudioFormat":{"EncodeType":"G711_ALAW"}}}` + "\x0A\x00"
 
 	data := fmt.Sprintf(format, c.session, "Claim")
 	if _, err := c.WriteCmd(OPTalkClaim, []byte(data)); err != nil {

pkg/dvrip/dvrip.go

@@ -23,8 +23,9 @@ func Dial(url string) (core.Producer, error) {
 				Kind:      core.KindAudio,
 				Direction: core.DirectionSendonly,
 				Codecs: []*core.Codec{
+					// leave only one codec here for better compatibility with cameras
+					// https://github.com/AlexxIT/go2rtc/issues/1111
 					{Name: core.CodecPCMA, ClockRate: 8000, PayloadType: 8},
-					{Name: core.CodecPCMU, ClockRate: 8000, PayloadType: 0},
 				},
 			},
 		}