Function JxlDecoderGetFrameHeader 

pub unsafe extern "C-unwind" fn JxlDecoderGetFrameHeader(
    dec: *const JxlDecoder,
    header: *mut JxlFrameHeader,
) -> JxlDecoderStatus

Outputs the information from the frame, such as duration when have_animation. This function can be called when JxlDecoderStatus::Frame occurred for the current frame, even when have_animation in the JxlBasicInfo is JxlBool::False.

Parameters

• dec: decoder object
• header: struct to copy the information into, or NULL to only check whether the information is available through the return value.

Returns

• JxlDecoderStatus::Success if the value is available
• JxlDecoderStatus::NeedMoreInput if not yet available
• JxlDecoderStatus::Error in case of other error conditions.