Function JxlEncoderSetExtraChannelName 

pub unsafe extern "C-unwind" fn JxlEncoderSetExtraChannelName(
    enc: *mut JxlEncoder,
    index: usize,
    name: *const u8,
    size: usize,
) -> JxlEncoderStatus

Sets the name for the extra channel at the given index in UTF-8. The index must be smaller than the num_extra_channels in the associated JxlBasicInfo.

TODO: remove size parameter for consistency with JxlEncoderSetFrameName

Parameters

• enc: encoder object.
• index: index of the extra channel to set.
• name: buffer with the name of the extra channel.
• size: size of the name buffer in bytes, not counting the terminating character.

Returns

• JxlEncoderStatus::Success on success.
• JxlEncoderStatus::Error on error.