Firefox warning "Invalid setParameters call detected"

neilyoung · April 22, 2023, 5:32am

I’m receiving this warning in Firefox 111.0.1 on macOS Ventura 13.3.1 while attempting to open local video. Video can be opened and displayed anyway.

Full text of warning:

WARNING! Invalid setParameters call detected! The good news? Firefox supports sendEncodings in addTransceiver now, so we ask that you switch over to using the parameters code you use for other browsers. Thank you for your patience and support. The specific error was: Cannot call setParameters without first calling getParameters [Firefox60.js:96](webpack://MyModule/node_modules/mediasoup-client/lib/handlers/Firefox60.js)

Warning is directly following this call:

github.com

versatica/mediasoup-client/blob/cfabea5eedeb0e73fea138e53824f48ccd4d7992/src/handlers/Firefox60.ts#L123


      
          			const videoTransceiver =
          				pc.addTransceiver(fakeVideoTrack, { direction: 'sendrecv' });
          			const parameters = videoTransceiver.sender.getParameters();
          			const encodings =
          			[
          				{ rid: 'r0', maxBitrate: 100000 },
          				{ rid: 'r1', maxBitrate: 500000 }
          			];
          
          
			parameters.encodings = encodings;
          			await videoTransceiver.sender.setParameters(parameters);
          
          
			const offer = await pc.createOffer();
          
          
			try { canvas.remove(); }
          			catch (error) {}
          
          
			try { fakeVideoTrack.stop(); }
          			catch (error) {}
          
          
			try { pc.close(); }

Something to be concerned about? I can provide more information on demand.

ibc · April 22, 2023, 6:25am

Triste me, Firefox lies. It doesn’t support (yet) simulcast via sendEncodings. I tried.

neilyoung · April 22, 2023, 6:36am

OK, thanks