avebi

A video playing library for Ebitengine based on the erparts/reisen fork of zergon321/reisen, with an API design inspired by tinne26/mpegg.

Warnings and limitations:

• The library is still quite barebones, lacking testing and only trying to cover primary needs for erparts.
• Reisen uses cgo, so this library inherits the problem (consider purego).
• The dependency on ffmpeg6.1 is quite undesirable for casual projects.
• The erparts/reisen fork is only adapted for Linux, so multi-platform support is non-existent.
• In order to play video with audio, the audio channels need to be stereo and the same length as the video channels.

Reisen depends on ffmpeg6.1, which is currently an outdated ffmpeg version.

On a linux system, the choices are:

• Keeping only the old ffmpeg version: which is not viable on up-to-date personal use computers where you have other programs that depend on the newest ffmpeg version.
• Keeping ffmpeg6.1 alongside newer versions: and using PKG_CONFIG_PATH=/usr/lib/ffmpeg6.1/pkgconfig or similar to point to it.

func main() {
    // create video player
    videoPlayer, err := avebi.NewPlayer("../test_video.mp4")
    if err != nil {
        panic(err)
    }

    // start playing
    videoPlayer.Play()

    // ... (ebiten.RunGame)
}

// ... (game definition)

func (g *Game) Draw(canvas *ebiten.Image) {
	avebi.Draw(canvas, g.videoFrame)
}

func (g *Game) Update() error {
    var err error
    g.videoFrame, err = g.videoPlayer.CurrentFrame()
    return err
}

Potential improvements on avebi:

• Consider async decoding buffering.
• Use circular buffers for audio data.
• Add support for mono audio.
• Add support for videos with audio and video channels of different lengths (annoying).

Potential improvements on reisen:

• Add support hardware acceleration, ¿..primarily h264_v4l2m2m for the raspberry pi?
• Use pools for both video and audio frames data.