Customize video resolution

[hjh006]

How can I set up and change the resolution of local video? thx

[manish-1988]

How did you solved this ?

[hjh006]

@manish-1988 hello there , hope this can help you

• (RTCVideoTrack *)createLocalVideoTrackBackCamera {

  RTCVideoTrack *localVideoTrack = nil;

  if !TARGET_IPHONE_SIMULATOR && TARGET_OS_IPHONE

  //AVCaptureDevicePositionBack
  NSString *cameraID = nil;
  for (AVCaptureDevice *captureDevice in
       [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]) {
      if (captureDevice.position == AVCaptureDevicePositionBack) {
          cameraID = [captureDevice localizedName];
          break;
      }
  }
  NSAssert(cameraID, @"Unable to get the back camera id");
  
  RTCVideoCapturer *capturer = [RTCVideoCapturer capturerWithDeviceName:cameraID];
  RTCMediaConstraints *mediaConstraints = [self defaultMediaStreamConstraints];
  RTCVideoSource *videoSource = [_factory videoSourceWithCapturer:capturer constraints:mediaConstraints];
  localVideoTrack = [_factory videoTrackWithID:@"ARDAMSv0" source:videoSource];

  endif

  return localVideoTrack;

}

• (RTCMediaConstraints *)defaultMediaStreamConstraints {

  NSArray *mandatoryConstraints = @[
                                    [[RTCPair alloc] initWithKey:@"maxWidth" value:@"1280"],
                                    [[RTCPair alloc] initWithKey:@"minWidth" value:@"1280"],
                                    [[RTCPair alloc] initWithKey:@"maxHeight" value:@"720"],
                                    [[RTCPair alloc] initWithKey:@"minHeight" value:@"720"],
                                    [[RTCPair alloc] initWithKey:@"maxFrameRate" value:@"30"],
                                    [[RTCPair alloc] initWithKey:@"minFrameRate" value:@"15"]
                                    ];
  
  RTCMediaConstraints* constraints =
  [[RTCMediaConstraints alloc]
   initWithMandatoryConstraints:mandatoryConstraints
   optionalConstraints:nil];
  return constraints;

}