ffmpeg

Documentation

Index

• Variables
• func New(ctx context.Context) (*wasm.Instance, error)
• func Precompile(ctx context.Context) error

Variables

var Instantiator = wasm.Instantiator{

	Module: "ffmpeg",

	Runtime: func(ctx context.Context) wazero.Runtime {

		cfg := wazero.NewRuntimeConfig()
		cfg = cfg.WithCoreFeatures(ffmpeg.CoreFeatures)
		cfg = cfg.WithCompilationCache(internal.Cache)

		rt := wazero.NewRuntimeWithConfig(ctx, cfg)

		env := rt.NewHostModuleBuilder("env")

		_, err := env.Instantiate(context.Background())
		if err != nil {
			panic(err)
		}

		_, err = wasi_snapshot_preview1.Instantiate(ctx, rt)
		if err != nil {
			panic(err)
		}

		return rt
	},

	Config: wazero.NewModuleConfig,

	Source: ffmpeg.B,
}

Functions

func New

func New(ctx context.Context) (*wasm.Instance, error)

New is shorthand for Instantiator.New().

func Precompile

func Precompile(ctx context.Context) error

Precompile creates a new ffmpeg WASM instance and immediately closes it. This ensures the ffmpeg binary is in the global compilation cache, reducing any possible slowdowns on next call to New().