fidl_fuchsia_media_audio/

fidl_fuchsia_media_audio.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_fuchsia_media_audio_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct EffectsControllerMarker;

impl fidl::endpoints::ProtocolMarker for EffectsControllerMarker {
    type Proxy = EffectsControllerProxy;
    type RequestStream = EffectsControllerRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = EffectsControllerSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.media.audio.EffectsController";
}
impl fidl::endpoints::DiscoverableProtocolMarker for EffectsControllerMarker {}
pub type EffectsControllerUpdateEffectResult = Result<(), UpdateEffectError>;

pub trait EffectsControllerProxyInterface: Send + Sync {
    type UpdateEffectResponseFut: std::future::Future<Output = Result<EffectsControllerUpdateEffectResult, fidl::Error>>
        + Send;
    fn r#update_effect(&self, effect_name: &str, config: &str) -> Self::UpdateEffectResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct EffectsControllerSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for EffectsControllerSynchronousProxy {
    type Proxy = EffectsControllerProxy;
    type Protocol = EffectsControllerMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl EffectsControllerSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<EffectsControllerEvent, fidl::Error> {
        EffectsControllerEvent::decode(
            self.client.wait_for_event::<EffectsControllerMarker>(deadline)?,
        )
    }

    /// Sends the `config` message to an audio effect named `effect_name`. If the
    /// server closes the `EffectsController` connection for any reason, that
    /// indicates that the effects have been reset and any state associated with
    /// previous `UpdateEffect` messages have been lost. Clients who wish to re-apply
    /// state should respond by reconnecting and resending any needed `UpdateEffect`
    /// messages. If a client closes the connection, no state will be lost but the
    /// client will also be unable to determine if and when any state associated with
    /// previous messages have been lost.
    ///
    /// Returns success (empty response) if the message was accepted by an
    /// effect named `effect_name`.
    ///
    /// Returns `UpdateEffectError.INVALID_CONFIG` if an effect with the name
    /// `effect_name` was found, but the `config` message was rejected.
    ///
    /// Returns `UpdateEffectError.NOT_FOUND` if no effect with name `effect_name`
    /// could be located.
    pub fn r#update_effect(
        &self,
        mut effect_name: &str,
        mut config: &str,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<EffectsControllerUpdateEffectResult, fidl::Error> {
        let _response = self.client.send_query::<
            EffectsControllerUpdateEffectRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, UpdateEffectError>,
            EffectsControllerMarker,
        >(
            (effect_name, config,),
            0x4e39e4b5e6279125,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }
}

#[cfg(target_os = "fuchsia")]
impl From<EffectsControllerSynchronousProxy> for zx::NullableHandle {
    fn from(value: EffectsControllerSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for EffectsControllerSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for EffectsControllerSynchronousProxy {
    type Protocol = EffectsControllerMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<EffectsControllerMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct EffectsControllerProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for EffectsControllerProxy {
    type Protocol = EffectsControllerMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl EffectsControllerProxy {
    /// Create a new Proxy for fuchsia.media.audio/EffectsController.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name =
            <EffectsControllerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> EffectsControllerEventStream {
        EffectsControllerEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Sends the `config` message to an audio effect named `effect_name`. If the
    /// server closes the `EffectsController` connection for any reason, that
    /// indicates that the effects have been reset and any state associated with
    /// previous `UpdateEffect` messages have been lost. Clients who wish to re-apply
    /// state should respond by reconnecting and resending any needed `UpdateEffect`
    /// messages. If a client closes the connection, no state will be lost but the
    /// client will also be unable to determine if and when any state associated with
    /// previous messages have been lost.
    ///
    /// Returns success (empty response) if the message was accepted by an
    /// effect named `effect_name`.
    ///
    /// Returns `UpdateEffectError.INVALID_CONFIG` if an effect with the name
    /// `effect_name` was found, but the `config` message was rejected.
    ///
    /// Returns `UpdateEffectError.NOT_FOUND` if no effect with name `effect_name`
    /// could be located.
    pub fn r#update_effect(
        &self,
        mut effect_name: &str,
        mut config: &str,
    ) -> fidl::client::QueryResponseFut<
        EffectsControllerUpdateEffectResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        EffectsControllerProxyInterface::r#update_effect(self, effect_name, config)
    }
}

impl EffectsControllerProxyInterface for EffectsControllerProxy {
    type UpdateEffectResponseFut = fidl::client::QueryResponseFut<
        EffectsControllerUpdateEffectResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#update_effect(
        &self,
        mut effect_name: &str,
        mut config: &str,
    ) -> Self::UpdateEffectResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<EffectsControllerUpdateEffectResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, UpdateEffectError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4e39e4b5e6279125,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            EffectsControllerUpdateEffectRequest,
            EffectsControllerUpdateEffectResult,
        >(
            (effect_name, config,),
            0x4e39e4b5e6279125,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct EffectsControllerEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for EffectsControllerEventStream {}

impl futures::stream::FusedStream for EffectsControllerEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for EffectsControllerEventStream {
    type Item = Result<EffectsControllerEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(EffectsControllerEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum EffectsControllerEvent {}

impl EffectsControllerEvent {
    /// Decodes a message buffer as a [`EffectsControllerEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<EffectsControllerEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name:
                    <EffectsControllerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.media.audio/EffectsController.
pub struct EffectsControllerRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for EffectsControllerRequestStream {}

impl futures::stream::FusedStream for EffectsControllerRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for EffectsControllerRequestStream {
    type Protocol = EffectsControllerMarker;
    type ControlHandle = EffectsControllerControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        EffectsControllerControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for EffectsControllerRequestStream {
    type Item = Result<EffectsControllerRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled EffectsControllerRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x4e39e4b5e6279125 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            EffectsControllerUpdateEffectRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<EffectsControllerUpdateEffectRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            EffectsControllerControlHandle { inner: this.inner.clone() };
                        Ok(EffectsControllerRequest::UpdateEffect {
                            effect_name: req.effect_name,
                            config: req.config,

                            responder: EffectsControllerUpdateEffectResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <EffectsControllerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

#[derive(Debug)]
pub enum EffectsControllerRequest {
    /// Sends the `config` message to an audio effect named `effect_name`. If the
    /// server closes the `EffectsController` connection for any reason, that
    /// indicates that the effects have been reset and any state associated with
    /// previous `UpdateEffect` messages have been lost. Clients who wish to re-apply
    /// state should respond by reconnecting and resending any needed `UpdateEffect`
    /// messages. If a client closes the connection, no state will be lost but the
    /// client will also be unable to determine if and when any state associated with
    /// previous messages have been lost.
    ///
    /// Returns success (empty response) if the message was accepted by an
    /// effect named `effect_name`.
    ///
    /// Returns `UpdateEffectError.INVALID_CONFIG` if an effect with the name
    /// `effect_name` was found, but the `config` message was rejected.
    ///
    /// Returns `UpdateEffectError.NOT_FOUND` if no effect with name `effect_name`
    /// could be located.
    UpdateEffect {
        effect_name: String,
        config: String,
        responder: EffectsControllerUpdateEffectResponder,
    },
}

impl EffectsControllerRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_update_effect(
        self,
    ) -> Option<(String, String, EffectsControllerUpdateEffectResponder)> {
        if let EffectsControllerRequest::UpdateEffect { effect_name, config, responder } = self {
            Some((effect_name, config, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            EffectsControllerRequest::UpdateEffect { .. } => "update_effect",
        }
    }
}

#[derive(Debug, Clone)]
pub struct EffectsControllerControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl EffectsControllerControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for EffectsControllerControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl EffectsControllerControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct EffectsControllerUpdateEffectResponder {
    control_handle: std::mem::ManuallyDrop<EffectsControllerControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`EffectsControllerControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for EffectsControllerUpdateEffectResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for EffectsControllerUpdateEffectResponder {
    type ControlHandle = EffectsControllerControlHandle;

    fn control_handle(&self) -> &EffectsControllerControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl EffectsControllerUpdateEffectResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<(), UpdateEffectError>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<(), UpdateEffectError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut result: Result<(), UpdateEffectError>) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::ResultType<
            fidl::encoding::EmptyStruct,
            UpdateEffectError,
        >>(
            result,
            self.tx_id,
            0x4e39e4b5e6279125,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct GainControlMarker;

impl fidl::endpoints::ProtocolMarker for GainControlMarker {
    type Proxy = GainControlProxy;
    type RequestStream = GainControlRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = GainControlSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) GainControl";
}

pub trait GainControlProxyInterface: Send + Sync {
    fn r#set_gain(&self, gain_db: f32) -> Result<(), fidl::Error>;
    fn r#set_gain_with_ramp(
        &self,
        gain_db: f32,
        duration: i64,
        ramp_type: RampType,
    ) -> Result<(), fidl::Error>;
    fn r#set_mute(&self, muted: bool) -> Result<(), fidl::Error>;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct GainControlSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for GainControlSynchronousProxy {
    type Proxy = GainControlProxy;
    type Protocol = GainControlMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl GainControlSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<GainControlEvent, fidl::Error> {
        GainControlEvent::decode(self.client.wait_for_event::<GainControlMarker>(deadline)?)
    }

    /// Sets the gain in decibels.
    pub fn r#set_gain(&self, mut gain_db: f32) -> Result<(), fidl::Error> {
        self.client.send::<GainControlSetGainRequest>(
            (gain_db,),
            0x2fc070871d033f64,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Smoothly changes gain from its current value to specified value, over the
    /// specified duration (in milliseconds). If 'duration_ns' is 0, gain changes
    /// immediately. Otherwise, gain changes only while the stream is running.
    ///
    /// Any active or pending ramp is cancelled by subsequent call to SetGain.
    ///
    /// There can be at most 1 active ramp at any time. Any active or pending
    /// ramp is replaced by a later call to SetGainWithRamp (even if duration is
    /// 0). In this case gain would ramps directly from its most recent
    /// (mid-ramp) value to the newly-specified one, over the new duration,
    /// using the new easing.
    ///
    /// Usage example (using time in seconds):
    ///  Time 0
    ///      SetGainWithRamp(`MUTED_GAIN_DB`, 0, SCALE_LINEAR)         // Ramp 1
    ///      SetGainWithRamp(0.0f, `ZX_SEC`(4), SCALE_LINEAR)          // Ramp 2
    ///  Time 3
    ///      PlayNoReply(kNoTimestamp, any_media_time)
    ///  Time 4
    ///      PauseNoReply()
    ///  Time 7
    ///      PlayNoReply(kNoTimestamp, any_media_time)
    ///  Time 8
    ///      SetGainWithRamp(`MUTED_GAIN_DB`, ZX_SEC(1), SCALE_LINEAR) // Ramp 3
    ///
    ///
    /// Time 0: Ramp 1 completes immediately, changing the gain to `MUTED_GAIN_DB`.
    ///         Ramp 2 is pending, since we are not in playback.
    /// Time 3, Ramp 2 begins ramping from `MUTED_GAIN_DB` to 0 dB
    ///         (scale 0.0=>1.0).
    /// Time 4: Ramp 2 pauses (3s remain). Per `SCALE_LINEAR`, scale is approx.
    ///         0.25.
    /// Time 7: Ramp 2 resumes from most recent value toward the target.
    /// Time 8: Ramp 3 replaces Ramp 2 and starts from current scale
    ///         (approx 0.5).
    /// Time 9: Ramp 3 completes; current scale value is now 0.0 (`MUTED_GAIN_DB`).
    pub fn r#set_gain_with_ramp(
        &self,
        mut gain_db: f32,
        mut duration: i64,
        mut ramp_type: RampType,
    ) -> Result<(), fidl::Error> {
        self.client.send::<GainControlSetGainWithRampRequest>(
            (gain_db, duration, ramp_type),
            0x3a175b2d6979e8ea,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Sets the mute value. Ramping and mute are fully independent, although
    /// they both affect the scaling that is applied.
    pub fn r#set_mute(&self, mut muted: bool) -> Result<(), fidl::Error> {
        self.client.send::<GainControlSetMuteRequest>(
            (muted,),
            0x5415723c1e31448,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[cfg(target_os = "fuchsia")]
impl From<GainControlSynchronousProxy> for zx::NullableHandle {
    fn from(value: GainControlSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for GainControlSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for GainControlSynchronousProxy {
    type Protocol = GainControlMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<GainControlMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct GainControlProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for GainControlProxy {
    type Protocol = GainControlMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl GainControlProxy {
    /// Create a new Proxy for fuchsia.media.audio/GainControl.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <GainControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> GainControlEventStream {
        GainControlEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Sets the gain in decibels.
    pub fn r#set_gain(&self, mut gain_db: f32) -> Result<(), fidl::Error> {
        GainControlProxyInterface::r#set_gain(self, gain_db)
    }

    /// Smoothly changes gain from its current value to specified value, over the
    /// specified duration (in milliseconds). If 'duration_ns' is 0, gain changes
    /// immediately. Otherwise, gain changes only while the stream is running.
    ///
    /// Any active or pending ramp is cancelled by subsequent call to SetGain.
    ///
    /// There can be at most 1 active ramp at any time. Any active or pending
    /// ramp is replaced by a later call to SetGainWithRamp (even if duration is
    /// 0). In this case gain would ramps directly from its most recent
    /// (mid-ramp) value to the newly-specified one, over the new duration,
    /// using the new easing.
    ///
    /// Usage example (using time in seconds):
    ///  Time 0
    ///      SetGainWithRamp(`MUTED_GAIN_DB`, 0, SCALE_LINEAR)         // Ramp 1
    ///      SetGainWithRamp(0.0f, `ZX_SEC`(4), SCALE_LINEAR)          // Ramp 2
    ///  Time 3
    ///      PlayNoReply(kNoTimestamp, any_media_time)
    ///  Time 4
    ///      PauseNoReply()
    ///  Time 7
    ///      PlayNoReply(kNoTimestamp, any_media_time)
    ///  Time 8
    ///      SetGainWithRamp(`MUTED_GAIN_DB`, ZX_SEC(1), SCALE_LINEAR) // Ramp 3
    ///
    ///
    /// Time 0: Ramp 1 completes immediately, changing the gain to `MUTED_GAIN_DB`.
    ///         Ramp 2 is pending, since we are not in playback.
    /// Time 3, Ramp 2 begins ramping from `MUTED_GAIN_DB` to 0 dB
    ///         (scale 0.0=>1.0).
    /// Time 4: Ramp 2 pauses (3s remain). Per `SCALE_LINEAR`, scale is approx.
    ///         0.25.
    /// Time 7: Ramp 2 resumes from most recent value toward the target.
    /// Time 8: Ramp 3 replaces Ramp 2 and starts from current scale
    ///         (approx 0.5).
    /// Time 9: Ramp 3 completes; current scale value is now 0.0 (`MUTED_GAIN_DB`).
    pub fn r#set_gain_with_ramp(
        &self,
        mut gain_db: f32,
        mut duration: i64,
        mut ramp_type: RampType,
    ) -> Result<(), fidl::Error> {
        GainControlProxyInterface::r#set_gain_with_ramp(self, gain_db, duration, ramp_type)
    }

    /// Sets the mute value. Ramping and mute are fully independent, although
    /// they both affect the scaling that is applied.
    pub fn r#set_mute(&self, mut muted: bool) -> Result<(), fidl::Error> {
        GainControlProxyInterface::r#set_mute(self, muted)
    }
}

impl GainControlProxyInterface for GainControlProxy {
    fn r#set_gain(&self, mut gain_db: f32) -> Result<(), fidl::Error> {
        self.client.send::<GainControlSetGainRequest>(
            (gain_db,),
            0x2fc070871d033f64,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#set_gain_with_ramp(
        &self,
        mut gain_db: f32,
        mut duration: i64,
        mut ramp_type: RampType,
    ) -> Result<(), fidl::Error> {
        self.client.send::<GainControlSetGainWithRampRequest>(
            (gain_db, duration, ramp_type),
            0x3a175b2d6979e8ea,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#set_mute(&self, mut muted: bool) -> Result<(), fidl::Error> {
        self.client.send::<GainControlSetMuteRequest>(
            (muted,),
            0x5415723c1e31448,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

pub struct GainControlEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for GainControlEventStream {}

impl futures::stream::FusedStream for GainControlEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for GainControlEventStream {
    type Item = Result<GainControlEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(GainControlEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum GainControlEvent {
    OnGainMuteChanged { gain_db: f32, muted: bool },
}

impl GainControlEvent {
    #[allow(irrefutable_let_patterns)]
    pub fn into_on_gain_mute_changed(self) -> Option<(f32, bool)> {
        if let GainControlEvent::OnGainMuteChanged { gain_db, muted } = self {
            Some((gain_db, muted))
        } else {
            None
        }
    }

    /// Decodes a message buffer as a [`GainControlEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<GainControlEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            0x66d528cad4e0d753 => {
                let mut out = fidl::new_empty!(
                    GainControlOnGainMuteChangedRequest,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                );
                fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<GainControlOnGainMuteChangedRequest>(&tx_header, _body_bytes, _handles, &mut out)?;
                Ok((GainControlEvent::OnGainMuteChanged { gain_db: out.gain_db, muted: out.muted }))
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <GainControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.media.audio/GainControl.
pub struct GainControlRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for GainControlRequestStream {}

impl futures::stream::FusedStream for GainControlRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for GainControlRequestStream {
    type Protocol = GainControlMarker;
    type ControlHandle = GainControlControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        GainControlControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for GainControlRequestStream {
    type Item = Result<GainControlRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled GainControlRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x2fc070871d033f64 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            GainControlSetGainRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<GainControlSetGainRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = GainControlControlHandle { inner: this.inner.clone() };
                        Ok(GainControlRequest::SetGain { gain_db: req.gain_db, control_handle })
                    }
                    0x3a175b2d6979e8ea => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            GainControlSetGainWithRampRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<GainControlSetGainWithRampRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = GainControlControlHandle { inner: this.inner.clone() };
                        Ok(GainControlRequest::SetGainWithRamp {
                            gain_db: req.gain_db,
                            duration: req.duration,
                            ramp_type: req.ramp_type,

                            control_handle,
                        })
                    }
                    0x5415723c1e31448 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            GainControlSetMuteRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<GainControlSetMuteRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = GainControlControlHandle { inner: this.inner.clone() };
                        Ok(GainControlRequest::SetMute { muted: req.muted, control_handle })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <GainControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// Enables control and monitoring of audio gain. This interface is typically
/// a tear-off of other interfaces. For example, `fuchsia.media.audio.Renderer`
/// has a `BindGainControl` method that binds to a gain control that controls
/// gain for the renderer.
#[derive(Debug)]
pub enum GainControlRequest {
    /// Sets the gain in decibels.
    SetGain { gain_db: f32, control_handle: GainControlControlHandle },
    /// Smoothly changes gain from its current value to specified value, over the
    /// specified duration (in milliseconds). If 'duration_ns' is 0, gain changes
    /// immediately. Otherwise, gain changes only while the stream is running.
    ///
    /// Any active or pending ramp is cancelled by subsequent call to SetGain.
    ///
    /// There can be at most 1 active ramp at any time. Any active or pending
    /// ramp is replaced by a later call to SetGainWithRamp (even if duration is
    /// 0). In this case gain would ramps directly from its most recent
    /// (mid-ramp) value to the newly-specified one, over the new duration,
    /// using the new easing.
    ///
    /// Usage example (using time in seconds):
    ///  Time 0
    ///      SetGainWithRamp(`MUTED_GAIN_DB`, 0, SCALE_LINEAR)         // Ramp 1
    ///      SetGainWithRamp(0.0f, `ZX_SEC`(4), SCALE_LINEAR)          // Ramp 2
    ///  Time 3
    ///      PlayNoReply(kNoTimestamp, any_media_time)
    ///  Time 4
    ///      PauseNoReply()
    ///  Time 7
    ///      PlayNoReply(kNoTimestamp, any_media_time)
    ///  Time 8
    ///      SetGainWithRamp(`MUTED_GAIN_DB`, ZX_SEC(1), SCALE_LINEAR) // Ramp 3
    ///
    ///
    /// Time 0: Ramp 1 completes immediately, changing the gain to `MUTED_GAIN_DB`.
    ///         Ramp 2 is pending, since we are not in playback.
    /// Time 3, Ramp 2 begins ramping from `MUTED_GAIN_DB` to 0 dB
    ///         (scale 0.0=>1.0).
    /// Time 4: Ramp 2 pauses (3s remain). Per `SCALE_LINEAR`, scale is approx.
    ///         0.25.
    /// Time 7: Ramp 2 resumes from most recent value toward the target.
    /// Time 8: Ramp 3 replaces Ramp 2 and starts from current scale
    ///         (approx 0.5).
    /// Time 9: Ramp 3 completes; current scale value is now 0.0 (`MUTED_GAIN_DB`).
    SetGainWithRamp {
        gain_db: f32,
        duration: i64,
        ramp_type: RampType,
        control_handle: GainControlControlHandle,
    },
    /// Sets the mute value. Ramping and mute are fully independent, although
    /// they both affect the scaling that is applied.
    SetMute { muted: bool, control_handle: GainControlControlHandle },
}

impl GainControlRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_set_gain(self) -> Option<(f32, GainControlControlHandle)> {
        if let GainControlRequest::SetGain { gain_db, control_handle } = self {
            Some((gain_db, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_gain_with_ramp(self) -> Option<(f32, i64, RampType, GainControlControlHandle)> {
        if let GainControlRequest::SetGainWithRamp {
            gain_db,
            duration,
            ramp_type,
            control_handle,
        } = self
        {
            Some((gain_db, duration, ramp_type, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_mute(self) -> Option<(bool, GainControlControlHandle)> {
        if let GainControlRequest::SetMute { muted, control_handle } = self {
            Some((muted, control_handle))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            GainControlRequest::SetGain { .. } => "set_gain",
            GainControlRequest::SetGainWithRamp { .. } => "set_gain_with_ramp",
            GainControlRequest::SetMute { .. } => "set_mute",
        }
    }
}

#[derive(Debug, Clone)]
pub struct GainControlControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl GainControlControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for GainControlControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl GainControlControlHandle {
    pub fn send_on_gain_mute_changed(
        &self,
        mut gain_db: f32,
        mut muted: bool,
    ) -> Result<(), fidl::Error> {
        self.inner.send::<GainControlOnGainMuteChangedRequest>(
            (gain_db, muted),
            0,
            0x66d528cad4e0d753,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct VolumeControlMarker;

impl fidl::endpoints::ProtocolMarker for VolumeControlMarker {
    type Proxy = VolumeControlProxy;
    type RequestStream = VolumeControlRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = VolumeControlSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) VolumeControl";
}

pub trait VolumeControlProxyInterface: Send + Sync {
    fn r#set_volume(&self, volume: f32) -> Result<(), fidl::Error>;
    fn r#set_mute(&self, mute: bool) -> Result<(), fidl::Error>;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct VolumeControlSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for VolumeControlSynchronousProxy {
    type Proxy = VolumeControlProxy;
    type Protocol = VolumeControlMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl VolumeControlSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<VolumeControlEvent, fidl::Error> {
        VolumeControlEvent::decode(self.client.wait_for_event::<VolumeControlMarker>(deadline)?)
    }

    /// Sets the volume of the audio element to the given value in
    /// [0.0, 1.0]. If the value is provided is outside of [0.0, 1.0],
    /// the value is clamped before application.
    pub fn r#set_volume(&self, mut volume: f32) -> Result<(), fidl::Error> {
        self.client.send::<VolumeControlSetVolumeRequest>(
            (volume,),
            0x6ff4231809a697da,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Sets whether the controlled element is muted. Mute is not the same
    /// as setting volume to 0.0; volume will persist for the duration of
    /// a mute. If volume was 0.5 before mute, volume will resume at 0.5
    /// following unmute.
    pub fn r#set_mute(&self, mut mute: bool) -> Result<(), fidl::Error> {
        self.client.send::<VolumeControlSetMuteRequest>(
            (mute,),
            0x50c10c28bba46425,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[cfg(target_os = "fuchsia")]
impl From<VolumeControlSynchronousProxy> for zx::NullableHandle {
    fn from(value: VolumeControlSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for VolumeControlSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for VolumeControlSynchronousProxy {
    type Protocol = VolumeControlMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<VolumeControlMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct VolumeControlProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for VolumeControlProxy {
    type Protocol = VolumeControlMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl VolumeControlProxy {
    /// Create a new Proxy for fuchsia.media.audio/VolumeControl.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <VolumeControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> VolumeControlEventStream {
        VolumeControlEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Sets the volume of the audio element to the given value in
    /// [0.0, 1.0]. If the value is provided is outside of [0.0, 1.0],
    /// the value is clamped before application.
    pub fn r#set_volume(&self, mut volume: f32) -> Result<(), fidl::Error> {
        VolumeControlProxyInterface::r#set_volume(self, volume)
    }

    /// Sets whether the controlled element is muted. Mute is not the same
    /// as setting volume to 0.0; volume will persist for the duration of
    /// a mute. If volume was 0.5 before mute, volume will resume at 0.5
    /// following unmute.
    pub fn r#set_mute(&self, mut mute: bool) -> Result<(), fidl::Error> {
        VolumeControlProxyInterface::r#set_mute(self, mute)
    }
}

impl VolumeControlProxyInterface for VolumeControlProxy {
    fn r#set_volume(&self, mut volume: f32) -> Result<(), fidl::Error> {
        self.client.send::<VolumeControlSetVolumeRequest>(
            (volume,),
            0x6ff4231809a697da,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#set_mute(&self, mut mute: bool) -> Result<(), fidl::Error> {
        self.client.send::<VolumeControlSetMuteRequest>(
            (mute,),
            0x50c10c28bba46425,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

pub struct VolumeControlEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for VolumeControlEventStream {}

impl futures::stream::FusedStream for VolumeControlEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for VolumeControlEventStream {
    type Item = Result<VolumeControlEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(VolumeControlEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum VolumeControlEvent {
    OnVolumeMuteChanged { new_volume: f32, new_muted: bool },
}

impl VolumeControlEvent {
    #[allow(irrefutable_let_patterns)]
    pub fn into_on_volume_mute_changed(self) -> Option<(f32, bool)> {
        if let VolumeControlEvent::OnVolumeMuteChanged { new_volume, new_muted } = self {
            Some((new_volume, new_muted))
        } else {
            None
        }
    }

    /// Decodes a message buffer as a [`VolumeControlEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<VolumeControlEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            0x9cea352bd86c171 => {
                let mut out = fidl::new_empty!(
                    VolumeControlOnVolumeMuteChangedRequest,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                );
                fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<VolumeControlOnVolumeMuteChangedRequest>(&tx_header, _body_bytes, _handles, &mut out)?;
                Ok((VolumeControlEvent::OnVolumeMuteChanged {
                    new_volume: out.new_volume,
                    new_muted: out.new_muted,
                }))
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <VolumeControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.media.audio/VolumeControl.
pub struct VolumeControlRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for VolumeControlRequestStream {}

impl futures::stream::FusedStream for VolumeControlRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for VolumeControlRequestStream {
    type Protocol = VolumeControlMarker;
    type ControlHandle = VolumeControlControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        VolumeControlControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for VolumeControlRequestStream {
    type Item = Result<VolumeControlRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled VolumeControlRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x6ff4231809a697da => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            VolumeControlSetVolumeRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<VolumeControlSetVolumeRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            VolumeControlControlHandle { inner: this.inner.clone() };
                        Ok(VolumeControlRequest::SetVolume { volume: req.volume, control_handle })
                    }
                    0x50c10c28bba46425 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            VolumeControlSetMuteRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<VolumeControlSetMuteRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            VolumeControlControlHandle { inner: this.inner.clone() };
                        Ok(VolumeControlRequest::SetMute { mute: req.mute, control_handle })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <VolumeControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A protocol for controlling volume.
#[derive(Debug)]
pub enum VolumeControlRequest {
    /// Sets the volume of the audio element to the given value in
    /// [0.0, 1.0]. If the value is provided is outside of [0.0, 1.0],
    /// the value is clamped before application.
    SetVolume { volume: f32, control_handle: VolumeControlControlHandle },
    /// Sets whether the controlled element is muted. Mute is not the same
    /// as setting volume to 0.0; volume will persist for the duration of
    /// a mute. If volume was 0.5 before mute, volume will resume at 0.5
    /// following unmute.
    SetMute { mute: bool, control_handle: VolumeControlControlHandle },
}

impl VolumeControlRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_set_volume(self) -> Option<(f32, VolumeControlControlHandle)> {
        if let VolumeControlRequest::SetVolume { volume, control_handle } = self {
            Some((volume, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_mute(self) -> Option<(bool, VolumeControlControlHandle)> {
        if let VolumeControlRequest::SetMute { mute, control_handle } = self {
            Some((mute, control_handle))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            VolumeControlRequest::SetVolume { .. } => "set_volume",
            VolumeControlRequest::SetMute { .. } => "set_mute",
        }
    }
}

#[derive(Debug, Clone)]
pub struct VolumeControlControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl VolumeControlControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for VolumeControlControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl VolumeControlControlHandle {
    pub fn send_on_volume_mute_changed(
        &self,
        mut new_volume: f32,
        mut new_muted: bool,
    ) -> Result<(), fidl::Error> {
        self.inner.send::<VolumeControlOnVolumeMuteChangedRequest>(
            (new_volume, new_muted),
            0,
            0x9cea352bd86c171,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;
}