Is different resolution for streaming and recording possible?

[kafejo]

I'm trying to figure out if it's possible to record locally at 1080p while streaming 720p at the same time. Has anyone any insights into this please? I tried to look through the documentation and code but couldn't really figure out if there's a way to do it. Thanks!

[shogo4405]

Yes, it is possible.

// 1. Use the camera capture size for local recording as specified above. However, the device needs to be supported.
stream.sessionPreset = .hd1920x1080

// 2. Use the screen size for local recording as specified above.
stream.screen.size = .init(width: 1920, height: 1080)

// 3. Specify the local recording as follows.
recorder = IOStreamRecorder()
recorder.outputSettings = [
  .audio: [
    AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
    AVSampleRateKey: 0,
    AVNumberOfChannelsKey: 0
  ],
  .video: [
    AVVideoCodecKey: AVVideoCodecType.h264,
    AVVideoHeightKey: 1920,
    AVVideoWidthKey: 1080
   ]
]
stream.addObserver(recorder)

// 4. Specify the streaming settings as follows.
stream.videoSettings.videoSize = .init(width: 1280, height: 720)

[kafejo]

Amazing, thanks for your reply!