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//! Wrapper around [RTCRtpEncodingParameters][0].
//!
//! [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
use dart_sys::Dart_Handle;
use medea_client_api_proto::{EncodingParameters, ScalabilityMode};
use medea_macro::dart_bridge;
use crate::platform::dart::utils::handle::DartHandle;
use super::utils::{c_str_into_string, string_into_c_str};
#[dart_bridge(
"flutter/lib/src/native/platform/send_encoding_parameters.g.dart"
)]
mod send_encoding_parameters {
use std::{os::raw::c_char, ptr};
use dart_sys::Dart_Handle;
use crate::platform::Error;
extern "C" {
/// Creates new [RTCRtpEncodingParameters][0].
///
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
pub fn new_send_encoding_parameters(
rid: ptr::NonNull<c_char>,
active: bool,
) -> Result<Dart_Handle, Error>;
/// Returns [RID] from the provided [RTCRtpEncodingParameters][0].
///
/// [RID]: https://w3.org/TR/webrtc#dom-rtcrtpcodingparameters-rid
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
pub fn get_rid(
encoding: Dart_Handle,
) -> Result<ptr::NonNull<c_char>, Error>;
/// Sets [activeness][1] of the provided [RTCRtpEncodingParameters][0].
///
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
/// [1]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters-active
pub fn set_active(
encoding: Dart_Handle,
active: bool,
) -> Result<(), Error>;
/// Sets [maxBitrate][1] of the provided [RTCRtpEncodingParameters][0].
///
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
/// [1]:https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters-maxbitrate
pub fn set_max_bitrate(
encoding: Dart_Handle,
max_bitrate: i64,
) -> Result<(), Error>;
/// Sets [scaleResolutionDownBy][1] of the provided
/// [RTCRtpEncodingParameters][0].
///
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
/// [1]: https://tinyurl.com/ypzzc75t
pub fn set_scale_resolution_down_by(
encoding: Dart_Handle,
scale_resolution_down_by: i64,
) -> Result<(), Error>;
/// Sets [scalabilityMode][1] of the provided
/// [RTCRtpEncodingParameters][0].
///
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
/// [1]: https://tinyurl.com/3zuaee45
pub fn set_scalability_mode(
encoding: Dart_Handle,
scalability_mode: ptr::NonNull<c_char>,
) -> Result<(), Error>;
}
}
/// Wrapper around [RTCRtpEncodingParameters][0] providing handy methods for its
/// direction changes.
///
/// [0]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters
#[derive(Clone, Debug)]
pub struct SendEncodingParameters(DartHandle);
impl From<DartHandle> for SendEncodingParameters {
fn from(value: DartHandle) -> Self {
Self(value)
}
}
impl SendEncodingParameters {
/// Creates new [`SendEncodingParameters`].
#[must_use]
pub fn new(rid: String, active: bool) -> Self {
let handle = unsafe {
send_encoding_parameters::new_send_encoding_parameters(
string_into_c_str(rid),
active,
)
}
.unwrap();
Self(unsafe { DartHandle::new(handle) })
}
/// Returns the underlying [`Dart_Handle`] of these
/// [`SendEncodingParameters`].
#[must_use]
pub fn handle(&self) -> Dart_Handle {
self.0.get()
}
/// Returns [RID] of these [`SendEncodingParameters`].
///
/// [RID]: https://w3.org/TR/webrtc#dom-rtcrtpcodingparameters-rid
#[must_use]
pub fn rid(&self) -> String {
let handle = self.0.get();
let rid = unsafe { send_encoding_parameters::get_rid(handle) }.unwrap();
unsafe { c_str_into_string(rid) }
}
/// Sets [activeness][1] of these [`SendEncodingParameters`].
///
/// [1]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters-active
pub fn set_active(&mut self, active: bool) {
let handle = self.0.get();
unsafe { send_encoding_parameters::set_active(handle, active) }
.unwrap();
}
/// Sets [maxBitrate][1] of these [`SendEncodingParameters`].
///
/// [1]: https://w3.org/TR/webrtc#dom-rtcrtpencodingparameters-maxbitrate
pub fn set_max_bitrate(&mut self, max_bitrate: i64) {
let handle = self.0.get();
unsafe {
send_encoding_parameters::set_max_bitrate(handle, max_bitrate)
}
.unwrap();
}
/// Sets [scaleResolutionDownBy][1] of these [`SendEncodingParameters`].
///
/// [1]: https://tinyurl.com/ypzzc75t
pub fn set_scale_resolution_down_by(
&mut self,
scale_resolution_down_by: i64,
) {
let handle = self.0.get();
unsafe {
send_encoding_parameters::set_scale_resolution_down_by(
handle,
scale_resolution_down_by,
)
}
.unwrap();
}
/// Sets [scalabilityMode][1] of these [`SendEncodingParameters`].
///
/// [1]: https://tinyurl.com/3zuaee45
pub fn set_scalability_mode(&mut self, scalability_mode: ScalabilityMode) {
let handle = self.0.get();
unsafe {
send_encoding_parameters::set_scalability_mode(
handle,
string_into_c_str(scalability_mode.to_string()),
)
}
.unwrap();
}
}
impl From<EncodingParameters> for SendEncodingParameters {
fn from(from: EncodingParameters) -> Self {
let EncodingParameters {
rid,
active,
max_bitrate,
scale_resolution_down_by,
} = from;
let mut enc = Self::new(rid, active);
if let Some(b) = max_bitrate {
enc.set_max_bitrate(b.into());
}
if let Some(s) = scale_resolution_down_by {
enc.set_scale_resolution_down_by(s.into());
}
enc
}
}