Media Blocks SDK .NET vs LEADTOOLS Multimedia SDK

var pipeline = new MediaBlocksPipeline();
var devices = await DeviceEnumerator.Shared.VideoSourcesAsync();
var camera = new SystemVideoSourceBlock(
    new VideoCaptureDeviceSourceSettings(devices[0]));
var output = new MP4OutputBlock("output.mp4");

pipeline.Connect(camera, output);
await pipeline.StartAsync();

var capture = new CaptureCtrl();
capture.VideoDevices[0].Selected = true;
capture.VideoCompressors.H264.Selected = true;
capture.VideoCompressors.H264.BitRate = 5000000;
capture.TargetFormat = TargetFormatType.MP4;
capture.TargetFile = "output.mp4";
capture.StartCapture(CaptureMode.Video);

var pipeline = new MediaBlocksPipeline();
var rtspSettings = await RTSPSourceSettings.CreateAsync(
    new Uri("rtsp://camera/stream"));
var rtsp = new RTSPSourceBlock(rtspSettings);
var text = new TextOverlayBlock(
    new TextOverlaySettings { Text = "Live" });
var tee = new TeeBlock(3, MediaBlockPadMediaType.Video);
var preview = new VideoRendererBlock(pipeline, videoView);
var recorder = new MP4OutputBlock("recording.mp4");

pipeline.Connect(rtsp, text);
pipeline.Connect(text, tee);
pipeline.Connect(tee, preview);
pipeline.Connect(tee, recorder);
await pipeline.StartAsync();

// 更复杂，需要手动构建图
var player = new PlayCtrl();
player.SourceFile = "rtsp://camera/stream";

// 添加文字叠加滤镜
var textOverlay = new TextOverlay();
// 手动配置并添加到图中

// Tee 到多个输出 - 复杂的 DirectShow 图
// 需要手动构建滤镜图
// 在 LEADTOOLS 中并不简单

// 由于 DirectShow 的限制
// 这个场景在 LEADTOOLS 中要复杂得多