Is there some possible way to make this code below...

# getting-started

[zt]

Is there some possible way to make this code below work? The error that occurs is Type of 'codecParameters' doesn't match the type of the overridden 'var' property 'expect var codecParameters: CodecParameters' defined in 'dev/ zt64/ ffmpegkt/ avformat/ Stream'.

public expect abstract class Stream {
    // ... extra unrelated properties

    public abstract var codecParameters: CodecParameters
}

public expect class AudioStream : Stream {
    public override var codecParameters: AudioCodecParameters
}

public expect class VideoStream : Stream {
    public override var codecParameters: VideoCodecParameters
}

I need to be able to set the codecParameters on instances, even if I don't have the specific instance type, so like

val stream: Stream
val newCodecParameters: CodecParameters
stream.codecParameters = newCodecParameters

[Youssef Shoaib [MOD]]

How do you expect it to work if e.g. AudioCodecParameters is set onto a VideoStream? Perhaps what you want is generics?

public expect abstract class Stream<Params: CodecParams> {
    // ... extra unrelated properties

    public abstract var codecParameters: Params
}

public expect class AudioStream : Stream<AudioCodecParameters> {
    public override var codecParameters: AudioCodecParameters
}

public expect class VideoStream : Stream<VideoCodecParameters> {
    public override var codecParameters: VideoCodecParameters
}