Delphi-FFMPEG

Pascal bindings for FFmpeg 4.2.2 shared libraries (Windows).

Requirements

• Delphi 10.3 Rio or newer (verified on Delphi 13 Florence)
• Free Pascal 3.0.4+ (optional)
• FFmpeg 4.2.2 shared DLLs for Windows (see below)

Repository layout

Path	Description
source/	Pascal units: libavcodec, libavformat, libavutil, …
examples/	Official FFmpeg API samples; open examples/Examples.groupproj
sdl/	JEDI-SDL bindings (used by ffmpeg_sample_player)
buildall/	Smoke-test (BuildAll) and FFmpeg build scripts

Build examples

1. Open examples/Examples.groupproj in Delphi.
2. Build All — search paths to source/ (and sdl/ for the player) are set in each .dproj.
3. Place FFmpeg DLLs next to the built .exe or add their folder to PATH.

FFmpeg 4.2.2 DLLs (runtime)

Bindings expect these library names (from source/ffmpeg.inc):

• avcodec-58.dll, avformat-58.dll, avutil-56.dll
• avdevice-58.dll, avfilter-7.dll, postproc-55.dll
• swresample-3.dll, swscale-5.dll

Download a FFmpeg 4.2.2 shared build for Windows (e.g. from BtbN/FFmpeg-Builds releases — pick a 4.2.x shared build, or build from source in buildall/).

Copy the DLLs into your output folder (examples/Win32/Debug/ etc.) or into a directory on PATH.

Integration with Delphi-OpenCV

Delphi-OpenCV uses this project via the embedded copy at Delphi-OpenCV/Delphi-FFMPEG/ and the runtime package rtpFFMPEG. Keep both copies of source/ in sync when updating bindings.

Install order in OpenCV: rtpFFMPEG → rclVCLOpenCV → …

OpenCV samples using FFmpeg: samples/Components/cFFmpegIPCamSource, samples/MultiDemo/IPCamVideoCapture.

Notes

• Many API symbols are marked deprecated in FFmpeg 4.2 — compiler warnings W1000 are expected.
• ffmpeg_sample_player requires SDL.dll (SDL 1.2) in addition to FFmpeg DLLs.