| 150 | } |
| 151 | |
| 152 | async setupSenderTransform(sender: RTCRtpSender) { |
| 153 | console.log('Setting up sender transform') |
| 154 | |
| 155 | // If this is Firefox, we will have to use RTCRtpScriptTransform |
| 156 | if (window.RTCRtpScriptTransform) { |
| 157 | sender.transform = new RTCRtpScriptTransform(this.worker, { |
| 158 | operation: 'encryptStream', |
| 159 | }) |
| 160 | return |
| 161 | } |
| 162 | |
| 163 | // Otherwise if this is Chrome we'll have to use createEncodedStreams |
| 164 | if ( |
| 165 | 'createEncodedStreams' in sender && |
| 166 | typeof sender.createEncodedStreams === 'function' |
| 167 | ) { |
| 168 | const senderStreams = sender.createEncodedStreams() |
| 169 | const { readable, writable } = senderStreams |
| 170 | this.worker.postMessage( |
| 171 | { |
| 172 | type: 'encryptStream', |
| 173 | in: readable, |
| 174 | out: writable, |
| 175 | }, |
| 176 | [readable, writable] |
| 177 | ) |
| 178 | |
| 179 | return |
| 180 | } |
| 181 | |
| 182 | throw new Error( |
| 183 | 'Neither RTCRtpScriptTransform nor RTCRtpSender.createEncodedStreams methods supported' |
| 184 | ) |
| 185 | } |
| 186 | |
| 187 | async setupReceiverTransform(receiver: RTCRtpReceiver) { |
| 188 | console.log('Setting up receiver transform') |