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enable stereo opus (#1013)

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This commit is contained in:
cnderrauber
2022-09-16 12:36:02 +08:00
committed by GitHub
parent 6234e4e725
commit a421ab8d2b
1 changed files with 10 additions and 2 deletions
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pkg/rtc/transport.go
+10 -2
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@@ -932,7 +932,7 @@ func (t *PCTransport) Negotiate(force bool) {
}
}
func (t *PCTransport) configureReceiverDTX(enableDTX bool) {
func (t *PCTransport) configureReceiverDTXAndStereo(enableDTX bool) {
//
// DTX (Discontinuous Transmission) allows audio bandwidth saving
// by not sending packets during silence periods.
@@ -993,6 +993,14 @@ func (t *PCTransport) configureReceiverDTX(enableDTX bool) {
if enableDTX {
sdpFmtpLine += ";" + fmtpUseDTX
}
fmtpStereo := "stereo=1"
// remove occurrence in the middle
sdpFmtpLine = strings.ReplaceAll(sdpFmtpLine, fmtpStereo+";", "")
// remove occurrence at the end
sdpFmtpLine = strings.ReplaceAll(sdpFmtpLine, fmtpStereo, "")
sdpFmtpLine += ";" + fmtpStereo
receiverCodec.SDPFmtpLine = sdpFmtpLine
}
modifiedReceiverCodecs = append(modifiedReceiverCodecs, receiverCodec)
@@ -1685,7 +1693,7 @@ func (t *PCTransport) createAndSendAnswer() error {
if onGetDTX := t.getOnGetDTX(); onGetDTX != nil {
enableDTX = onGetDTX()
}
t.configureReceiverDTX(enableDTX)
t.configureReceiverDTXAndStereo(enableDTX)
answer, err := t.pc.CreateAnswer(nil)
if err != nil {