# `FFix.Expr`
[🔗](https://github.com/akash-akya/ffix/blob/v0.1.0/lib/ffix/expr.ex#L1)

Raw ffmpeg expression value.

Use `FFix.expr/1` when a filter option should be treated as ffmpeg expression
syntax rather than ordinary text.

    video
    |> FFix.Filter.drawtext(text: "Hello", x: FFix.expr("w-tw-20"), y: 20)

# `t`

```elixir
@type t() :: %FFix.Expr{source: String.t()}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*