Ffmpeg Vcl Components 5.0.1: Ffvcl - Delphi

Note: these are conceptual pseudo-Delphi snippets to illustrate flow (adapt to your FFVCL API):

VideoComp.Source := 'C:\Videos\sample.mp4';
VideoComp.OnFrame := VideoFrameHandler;
VideoComp.Play;

Decoder.Input := 'input.mov';
Encoder.Output := 'output.mp4';
Encoder.Codec := 'libx264';
Decoder.OnFrame := procedure(frame) begin Encoder.Encode(frame); end;
Decoder.Start;

Capture.Source := 'desktop';
Capture.OnFrame := LiveEncoder.PutFrame;
Streamer.URL := 'rtmp://...';
Streamer.Start;
Capture.Start;

FFVCL 5.0.1 is performant because it offloads the heavy lifting to FFmpeg’s highly optimized assembly code (SSE/AVX) and GPU decoders. In my testing on an Intel i7-12700H with an RTX 3060:

Memory leaks are non-existent if you call Close or let the component free; the library properly calls avformat_close_input and avcodec_free_context. FFVCL - Delphi FFmpeg VCL Components 5.0.1

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.

Step 1: Download FFVCL 5.0.1 Obtain the library from the official vendor (Progdigy Software or authorized resellers). The package includes source code (for the Delphi wrapper) and precompiled DCUs for supported Delphi versions. VideoComp

Step 2: Obtain FFmpeg Shared Libraries Download the correct shared build of FFmpeg:

Place these DLLs in your application’s output folder or a system PATH directory. Decoder

Step 3: Install in RAD Studio

Step 4: Test with a Demo Drop a TFFMediaPlayer on a form, a TButton, and an TOpenDialog. Write:

procedure TForm1.Button1Click(Sender: TObject);
begin
  if OpenDialog1.Execute then
  begin
    FFMediaPlayer1.FileName := OpenDialog1.FileName;
    FFMediaPlayer1.Play;
  end;
end;

Run, select a video file, and watch it play inside your Delphi application.