How can I change the stream screen size as I want?

Description

I'm displaying the RTP stream screen, but I can't position it as I want and can't adjust the size. mMediaPlayer.aspectRatio and mMediaPlayer.scale is not working.

I used videoScale and It looks like this:

• MediaPlayer.ScaleType.SURFACE_FILL

full size:

and adjust fragment container size:

It's just cropped and the size doesn't adjust.

• MediaPlayer.ScaleType.SURFACE_ORIGINAL

The layout can be reduced to fit this size, but the disadvantage is that the video size is small, and the aspectRatio does not work.

Here is my videoFragment code(Android compose)

class VideoFragment: Fragment(){
    private val mStreamingPath = "rtp://@:8004" //"rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4"

    private val USE_TEXTURE_VIEW = false
    private val ENABLE_SUBTITLES = false

    private var mVideoLayout: VLCVideoLayout? = null
    private var mLibVLC: LibVLC? = null
    private var mMediaPlayer: MediaPlayer? = null

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        return ComposeView(requireContext()).apply {
            setContent {
                Box(modifier = Modifier
                    .border(width = 1.dp, color = Color.Red)
                    .aspectRatio(4f / 3f)
                ) {
                    AndroidView(
                        modifier = Modifier.matchParentSize(),
                        factory = { context ->
                            VLCVideoLayout(context).apply{
                                mVideoLayout = this
                                val args: ArrayList<String> = ArrayList()
                                args.add("-vvv")
                                args.add("--vout=android-display")
                                args.add("--file-caching=0")
                                args.add("--clock-jitter=0")
                                args.add("--network-caching=0")
                                args.add("--sub-track=0")
                                args.add("--drop-late-frames")
                                args.add("--skip-frames")
                                args.add("--sout-rtp-proto=rtp")
                                args.add("--no-autoscale")


                                mLibVLC = LibVLC(context, args)
                                mMediaPlayer = MediaPlayer(mLibVLC)


                                mMediaPlayer?.attachViews(mVideoLayout!!, null, ENABLE_SUBTITLES, USE_TEXTURE_VIEW)
                                mMediaPlayer?.videoScale = MediaPlayer.ScaleType.SURFACE_FILL // SURFACE_ORIGINAL
                                val media = Media(mLibVLC, Uri.parse(mStreamingPath))
                                mMediaPlayer?.media = media

                                media.release()
                                mMediaPlayer?.aspectRatio = "16:9" //not working
                                mMediaPlayer?.scale = 2.0f // not working

                                mMediaPlayer?.play()


                            }
                        })
                }

            }
        }
    }

    override fun onDestroy() {
        super.onDestroy()
        mMediaPlayer?.stop()
        mMediaPlayer?.detachViews()
        mMediaPlayer?.release()
        mLibVLC?.release()

    }

}

and use dependency implementation 'org.videolan.android:libvlc-all:3.1.12'

Context

App version

Android version

targetSdk 33(app), android version 12(tablet)

Device model

Galaxy Tab A7

App mode