Publish tracks with different codecs not working

[thepacketloss]

Select which package(s) are affected

@livekit/rtc-node

Describe the bug

when I publish 3 tracks with different codecs all three tracks will publish with the codec of first published track. I mean consider I want to publish 3 tracks like these : Track 1 with AV1 Track 2 with VP9 Track 3 with VP8 all 3 tracks will be published with AV1 codec and if I change the order of publish like this : Track 1 with VP8 Track 2 with VP9 Track 3 with AV1 then all 3 tracks will be published with VP8 codec.

Reproduction

const room = new Room();
await room.connect('ws://localhost:7880', jwt, {autoSubscribe: true, dynacast: true});

room.on(RoomEvent.TrackSubscribed, async (track, publication, participant) => {
    const source = new VideoSource(1920, 1080);
    const av1_track = LocalVideoTrack.createVideoTrack('av1_track', source);
    const vp9_track = LocalVideoTrack.createVideoTrack('vp9_track', source);
    const vp8_track = LocalVideoTrack.createVideoTrack('vp8_track', source);
    await room.localParticipant.publishTrack(av1_track, {
        simulcast: false,
        videoCodec: VideoCodec.AV1,
        source: TrackSource.SOURCE_SCREENSHARE,
        videoEncoding: {
            maxBitrate: 250_000,
            maxFramerate: 10
        }
    })
    await room.localParticipant.publishTrack(vp9_track, {
        simulcast: false,
        videoCodec: VideoCodec.VP9,
        source: TrackSource.SOURCE_SCREENSHARE,
        videoEncoding: {
            maxBitrate: 250_000,
            maxFramerate: 10
        }
    })
    await room.localParticipant.publishTrack(vp8_track, {
        simulcast: false,
        videoCodec: VideoCodec.VP8,
        source: TrackSource.SOURCE_SCREENSHARE,
        videoEncoding: {
            maxBitrate: 250_000,
            maxFramerate: 10
        }
    })

    const stream = new VideoStream(track);
    for await (const buf of stream) {
        await source.captureFrame(buf.frame);
    }

    await source.close()
    stream.close()
});

Logs

System Info

Binaries:
    Node: 23.9.0 - /usr/bin/node
    Yarn: 1.22.22 - /usr/bin/yarn
    npm: 11.2.0 - /usr/bin/npm
    pnpm: 8.15.4 - ~/.local/share/pnpm/pnpm
    bun: 1.1.21 - ~/.bun/bin/bun
  npmPackages:
    @livekit/rtc-node: ^0.13.8 => 0.13.8 
    livekit-server-sdk: ^2.10.2 => 2.10.2

LiveKit server version

latest self hosted version

Severity

blocking all usage of LiveKit

Additional Information

No response