make_dto!(
EchoTestStartParams,
optional {
audio: bool,
video: bool,
bitrate: u32,
record: bool,
filename: String,
substream: u32,
temporal: u32,
fallback: u32,
svc: bool,
spatial_layer: u32,
temporal_layer: u32,
audiocodec: String,
videocodec: String,
videoprofile: String,
opusred: bool,
min_delay: i32,
max_delay: i32,
}
);