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Encode a series of bitmaps and video clips together with an audio file to video using the Windows Mediafoundation-API

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Bitmaps2Video for Media Foundation

A VCL-based Delphi-class to encode a series of bitmaps and video-clips together with an audio file to video using the Windows Mediafoundation-API.

The encoding class TBitmapEncoderWMF can be found in Source\uBitmaps2VideoWMF.pas. It is designed to be an easy to use interface to the Mediafoundation-API, requiring only basic knowledge about video-processing.

Requires:

  • The MF-API-headers available at https://github.com/FactoryXCode/MfPack. Download the repository and add its folder "src" to your library path. There is no need to install any package.
  • Thanks to FactoryXCode for the headers and samples!

Supported file formats and codecs:

Output:
Presently only .mp4 with H264 or H265(HEVC)-codecs. Hardware encoding is enabled if supported. Audio is encoded to AAC.

Input:
Theoretically anything that Windows has a decoder for should work as input for video or audio. Exception: Audio sample rate must be 44100 or 48000. Practically some file formats (like .vob) don't seem to be fully supported. Try them in the demo. Rule of thumb: What Films & TV will play, works.

Usage:

Add the 4 files in the Source-directory to your project and the uses-clause of any unit using the encoder. The methods of the encoder-class are explained in the interface section of uBitmaps2VideoWMF.pas. To see examples of usage, run the demo-project DemoWMF in the Demo-folder.

Delphi-Versions:

Developed under Delphi 11.3. Should work with 10.3 and up, probably with some earlier versions, too. Records with methods, anonymous procedures, interposer classes, tasks and TWicImage need to be available.

Runtime Requirement:

To be able to use all encoding features, Windows 10 or higher is required.

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Encode a series of bitmaps and video clips together with an audio file to video using the Windows Mediafoundation-API

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