Properties: FileName , PlaybackRate (0.5x to 2.0x), Volume , AudioTrack , SubtitleTrack . Events: OnVideoFrame , OnAudioFrame , OnBuffering , OnMediaOpened . Think of this as your custom transcoder. You feed it frames (from a camera, disk, or generated graphics), and it outputs a standard media file (MP4, MKV, MOV, etc.).
Use Cases: Screen recording, converting raw camera feeds to H.264, creating timelapse videos from images. A playlist component that gaplessly transitions between files. It pre-buffers the next file in the background—perfect for DJ software or digital signage. 4. TFFCaptureDevice Directly access webcams, microphones, or even desktop capture (via GDI/DXGI). This component bridges FFmpeg’s dshow (Windows) or v4l2 (Linux) inputs into a VCL application. 5. TFFSubtitleRenderer Renders external or embedded subtitles (SRT, ASS, VTT) over the video output. Supports custom fonts, outlines, and positioning. Practical Use Cases: What Can You Build? With FFVCL 5.0.1 installed, Delphi transforms from a database tool into a multimedia powerhouse. 1. Professional Video Editors You can build a non-linear editor (NLE) by scrubbing through TFFMediaPlayer , extracting frames as TBitmap , arranging them on a timeline, and re-encoding with TFFMediaEncoder . Since you have frame-accurate seeking (down to the presentation timestamp), trimming and cutting are trivial. 2. Surveillance Systems Combine TFFCaptureDevice (for IP cameras via RTSP) with TFFMediaEncoder to record motion-detected clips. The low CPU usage of hardware-accelerated decoding means you can monitor 16+ 1080p streams on a standard industrial PC. 3. Broadcast Playout Software Radio automation or TV channel-in-a-box software benefits from TFFMediaList 's gapless transitions and TFFAudioVisualizer for on-air meters. Version 5.0.1 includes better handling of broadcast formats like MPEG-TS and ProRes. 4. Multimedia Forensics Tools Extract thumbnails, metadata, and frame hashes. Write tools that verify video integrity or detect encoding artifacts. Installation and Setup (Step-by-Step) Getting FFVCL 5.0.1 running requires a few clear steps. Unlike many commercial libraries, FFVCL does not bundle FFmpeg binaries due to licensing (LGPL/GPL). You provide them. FFVCL - Delphi FFmpeg VCL Components 5.0.1
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