Function JxlDecoderGetExtraChannelBlendInfo 

pub unsafe extern "C-unwind" fn JxlDecoderGetExtraChannelBlendInfo(
    dec: *const JxlDecoder,
    index: usize,
    blend_info: *mut JxlBlendInfo,
)

Outputs the blend information for the current frame for a specific extra channel. This function can be called once the JxlDecoderStatus::Frame event occurred for the current frame, even if the have_animation field in the JxlBasicInfo is JxlBool::False. This information is only useful if coalescing is disabled; otherwise the decoder will have performed blending already.

Parameters

• dec: decoder object
• index: the index of the extra channel
• blend_info: struct to copy the information into

Returns

• JxlDecoderStatus::Success on success
• JxlDecoderStatus::Error on error