# NominalVideoScaleModeError

## exception nominal.exceptions.NominalVideoScaleModeError(message="Expected at most one of 'ending_timestamp', 'true_frame_rate', and 'scale_factor' to be present")

Bases: [`NominalError`](https://dev.nominal.io/python/ref/generated/nominal.exceptions.NominalError.md#nominal.exceptions.NominalError "nominal.exceptions.NominalError"), [`ValueError`](https://docs.python.org/3/builtins/exceptions.html#ValueError "(in Python v3.15)")

More than one way of scaling a video’s playback rate was given; at most one is allowed.

`ending_timestamp`, `true_frame_rate`, and `scale_factor` express the same quantity three ways.
Also a [`ValueError`](https://docs.python.org/3/builtins/exceptions.html#ValueError "(in Python v3.15)"), which is what this raised before the type existed.

Initialize error.