MediaStreamTrack.getSettings Error when retrieving media stream videotracks on iPad Pro

[DustinBel]

I am running an application with the Cordova-plugin-iosrtc unfortunately it is not working on an iPad Pro while it is working on an iPhone X.

2020-05-23 17:33:28.938315+0200 test[7425:7008108] PluginRTCVideoCaptureController#findDevice deviceFrameRate:15
2020-05-23 17:33:28.938599+0200 test[7425:7008108] PluginRTCVideoCaptureController#startCapture Capture started, device:<AVCaptureFigVideoDevice: 0x135f26130 [Front Camera][com.apple.avfoundation.avcapturedevice.built-in_video:1]>, format:<AVCaptureDeviceFormat: 0x281100b80 'vide'/'420v' 640x 480, { 1- 60 fps}, HRSI:1624x1218, fov:53.957, binned, max zoom:76.12 (upscales @2.54), ISO:18.0-1728.0, SS:0.000020-1.000000, supports multicam>
2020-05-23 17:33:28.938689+0200 test[7425:7008108] PluginGetUserMedia#call() | audio requested
2020-05-23 17:33:28.938889+0200 test[7425:7008108] PluginGetUserMedia#call() | chosen audio constraints: {
}
2020-05-23 17:33:28.939781+0200 test[7425:7008108] PluginMediaStream#init()
2020-05-23 17:33:28.939876+0200 test[7425:7008108] PluginMediaStreamTrack#init()
2020-05-23 17:33:28.939948+0200 test[7425:7008108] PluginMediaStreamTrack#run() [kind:audio, id:87BC7C59-F0FD-4102-82BC-D0D5FD09624F_5F8AD419-77EC-40BB-B1E8-CBB7A88B2A18]
2020-05-23 17:33:28.940006+0200 test[7425:7008108] PluginMediaStreamTrack#init()
2020-05-23 17:33:28.940063+0200 test[7425:7008108] PluginMediaStreamTrack#run() [kind:video, id:1DF521E6-E340-4188-91F6-448D3C9617CF_BBB24C3E-11A1-4317-959C-6B892C61FB8E]
2020-05-23 17:33:28.940087+0200 test[7425:7008108] PluginMediaStream#run()
2020-05-23 17:33:28.940340+0200 test[7425:7008108] THREAD WARNING: ['iosrtcPlugin'] took '30.092041' ms. Plugin should use a background thread.
2020-05-23 17:33:28.943006+0200 test[7425:7008108] iosrtcPlugin#MediaStream_setListener()
2020-05-23 17:33:28.943136+0200 test[7425:7008337] PluginMediaStream#setListener()
2020-05-23 17:33:28.945157+0200 test[7425:7008108] iosrtcPlugin#MediaStreamTrack_setListener()
2020-05-23 17:33:28.945280+0200 test[7425:7008108] iosrtcPlugin#MediaStreamTrack_setListener()
2020-05-23 17:33:28.945297+0200 test[7425:7008337] PluginMediaStreamTrack#setListener() [kind:audio, id:87BC7C59-F0FD-4102-82BC-D0D5FD09624F_5F8AD419-77EC-40BB-B1E8-CBB7A88B2A18]
2020-05-23 17:33:28.945365+0200 test[7425:7008337] PluginMediaStreamTrack#setListener() [kind:video, id:1DF521E6-E340-4188-91F6-448D3C9617CF_BBB24C3E-11A1-4317-959C-6B892C61FB8E]
2020-05-23 17:33:28.947253+0200 test[7425:7008108] iosrtcPlugin#MediaStreamTrack_setEnabled()
2020-05-23 17:33:28.947380+0200 test[7425:7008108] iosrtcPlugin#MediaStreamTrack_setEnabled()
2020-05-23 17:33:28.947406+0200 test[7425:7008337] PluginMediaStreamTrack#setEnabled() [kind:audio, id:87BC7C59-F0FD-4102-82BC-D0D5FD09624F_5F8AD419-77EC-40BB-B1E8-CBB7A88B2A18, value:true]
2020-05-23 17:33:28.947512+0200 test[7425:7008337] PluginMediaStreamTrack#setEnabled() [kind:video, id:1DF521E6-E340-4188-91F6-448D3C9617CF_BBB24C3E-11A1-4317-959C-6B892C61FB8E, value:true]
2020-05-23 17:33:29.106234+0200 test r[7425:7008108] ERROR: {}
2020-05-23 17:33:29.107188+0200 test[7425:7008108] {"name":"GENERIC_ERROR","message":"TypeError: mediaStream.getVideoTracks()[0].getSettings is not a function. (In 'mediaStream.getVideoTracks()[0].getSettings()', 'mediaStream.getVideoTracks()[0].getSettings' is undefined)"}

The same application is running perfect on a iPhone X with iOS 13.4.1.
It is giving me the errors above on an iPad Pro 2020 with iOS 13.4.1
It is working on an iPad Air with IOS 12.4.5

Expected behavior

That it is working on a iPad pro too.

Observerd behavior

There is something wrong getting the settings: {"name":"GENERIC_ERROR","message":"TypeError: mediaStream.getVideoTracks()[0].getSettings is not a function. (In 'mediaStream.getVideoTracks()[0].getSettings()', 'mediaStream.getVideoTracks()[0].getSettings' is undefined)"}

Steps to reproduce the problem

Just running it on an iPad Pro.

• Cordova version:
  "cordova-plugin-iosrtc": "6.0.11",
  "cordova-ios": "^5.1.1",

• iOS version:
  13.4.1

• Xcode version:
  11.4

[hthetiot]

The same application is running perfect on a iPhone X with iOS 13.4.1.
It is giving me the errors above on an iPad Pro 2020 with iOS 13.4.1
It is working on an iPad Air with IOS 12.4.5

MediaStreamTrack.getSettings is not implemented in iOSRTC, the fact that it is working on iPhone and iPad Air but not iPad Pro is probably because you don't call MediaStreamTrack.getSettings on iPhone and iPad Air in you code.

So technically yes iosRTC does not implement getSettings but that is expected and should not prevent you if you handle it properly to make it works.

[hthetiot]

Related #482

Please provide the webrtc-adapter version if you are using one and the third party library you are using for WebRTC, if you do not use a third party library then use getSettings only when available.