Build a Video Player in C¶

using VisioForge.Core;
using VisioForge.Core.MediaPlayerX;
using VisioForge.Core.Types.Events;
using VisioForge.Core.Types.X.AudioRenderers;
using VisioForge.Core.Types.X.Sources;

public partial class Form1 : Form
{
    private MediaPlayerCoreX _player;
    private System.Timers.Timer _timer;
    private bool _timerFlag;

    private async void Form1_Load(object sender, EventArgs e)
    {
        // Initialize the SDK
        await VisioForgeX.InitSDKAsync();

        _timer = new System.Timers.Timer(500);
        _timer.Elapsed += Timer_Elapsed;

        // Create the player engine with the VideoView control
        _player = new MediaPlayerCoreX(VideoView1);
        _player.OnError += Player_OnError;
        _player.OnStop += Player_OnStop;

        // Populate audio output devices
        foreach (var device in await _player.Audio_OutputDevicesAsync(
            AudioOutputDeviceAPI.DirectSound))
        {
            cbAudioOutput.Items.Add(device.Name);
        }

        if (cbAudioOutput.Items.Count > 0)
            cbAudioOutput.SelectedIndex = 0;
    }

    private void btOpenFile_Click(object sender, EventArgs e)
    {
        var ofd = new OpenFileDialog
        {
            Filter = "Video Files|*.mp4;*.avi;*.mkv;*.wmv;*.webm;*.mov;*.ts" +
                     "|Audio Files|*.mp3;*.aac;*.wav;*.wma|All Files|*.*"
        };

        if (ofd.ShowDialog() == DialogResult.OK)
            edFilename.Text = ofd.FileName;
    }

    private async void btStart_Click(object sender, EventArgs e)
    {
        // Set audio output device
        var devices = await _player.Audio_OutputDevicesAsync(
            AudioOutputDeviceAPI.DirectSound);
        var audioDevice = devices.First(x => x.Name == cbAudioOutput.Text);
        _player.Audio_OutputDevice = new AudioRendererSettings(audioDevice);

        // Open the media file
        var source = await UniversalSourceSettings.CreateAsync(
            new Uri(edFilename.Text));
        await _player.OpenAsync(source);

        // Start playback
        await _player.PlayAsync();

        _timer.Start();
    }

    private async void btPause_Click(object sender, EventArgs e)
    {
        await _player.PauseAsync();
    }

    private async void btResume_Click(object sender, EventArgs e)
    {
        await _player.ResumeAsync();
    }

    private async void btStop_Click(object sender, EventArgs e)
    {
        _timer.Stop();

        if (_player != null)
        {
            await _player.StopAsync();
        }

        tbTimeline.Value = 0;
    }

    private async void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
    {
        _timerFlag = true;

        if (_player == null) return;

        var position = await _player.Position_GetAsync();
        var duration = await _player.DurationAsync();

        Invoke(() =>
        {
            tbTimeline.Maximum = (int)duration.TotalSeconds;
            lbTime.Text = $"{position:hh\\:mm\\:ss} / {duration:hh\\:mm\\:ss}";

            if (tbTimeline.Maximum >= position.TotalSeconds)
                tbTimeline.Value = (int)position.TotalSeconds;
        });

        _timerFlag = false;
    }

    private async void tbTimeline_Scroll(object sender, EventArgs e)
    {
        if (!_timerFlag && _player != null)
        {
            await _player.Position_SetAsync(
                TimeSpan.FromSeconds(tbTimeline.Value));
        }
    }

    private void tbVolume_Scroll(object sender, EventArgs e)
    {
        if (_player != null)
            _player.Audio_OutputDevice_Volume = tbVolume.Value / 100.0;
    }

    private async void tbSpeed_Scroll(object sender, EventArgs e)
    {
        await _player.Rate_SetAsync(tbSpeed.Value / 10.0);
    }

    private void Player_OnError(object sender, ErrorsEventArgs e)
    {
        Invoke(() => edLog.Text += e.Message + Environment.NewLine);
    }

    private void Player_OnStop(object sender, StopEventArgs e)
    {
        Invoke(() => tbTimeline.Value = 0);
    }

    private async void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        _timer.Stop();

        if (_player != null)
        {
            _player.OnError -= Player_OnError;
            _player.OnStop -= Player_OnStop;
            await _player.DisposeAsync();
        }

        VisioForgeX.DestroySDK();
    }
}

using VisioForge.Core.MediaBlocks;
using VisioForge.Core.MediaBlocks.VideoRendering;
using VisioForge.Core.MediaBlocks.Sources;
using VisioForge.Core.MediaBlocks.AudioRendering;
using VisioForge.Core.Types.X.AudioRenderers;
using VisioForge.Core.Types.X.Sources;

private MediaBlocksPipeline _pipeline;

private async void StartPlayback(string filePath)
{
    _pipeline = new MediaBlocksPipeline();

    // Create file source and detect available streams
    var fileSourceSettings = await UniversalSourceSettings.CreateAsync(filePath);
    var hasVideo = fileSourceSettings.GetInfo().VideoStreams.Count > 0;
    var hasAudio = fileSourceSettings.GetInfo().AudioStreams.Count > 0;

    var fileSource = new UniversalSourceBlock(fileSourceSettings);

    // Connect video renderer if video is available
    if (hasVideo)
    {
        var videoRenderer = new VideoRendererBlock(_pipeline, VideoView1);
        _pipeline.Connect(fileSource, videoRenderer);
    }

    // Connect audio renderer if audio is available
    if (hasAudio)
    {
        var audioOutputDevice = (await DeviceEnumerator.Shared
            .AudioOutputsAsync(AudioOutputDeviceAPI.DirectSound))[0];
        var audioOutput = new AudioRendererBlock(
            new AudioRendererSettings(audioOutputDevice));
        _pipeline.Connect(fileSource, audioOutput);
    }

    // Start playback
    await _pipeline.StartAsync();
}