Struct fidl_fuchsia_camera3::Stream_Proxy

pub struct Stream_Proxy { /* private fields */ }

Implementations

impl Stream_Proxy

pub fn new(channel: AsyncChannel) -> Self

Create a new Proxy for fuchsia.camera3/Stream.

pub fn take_event_stream(&self) -> Stream_EventStream

Get a Stream of events from the remote end of the protocol.

Panics

Panics if the event stream was already taken.

pub fn get_properties(&self) -> QueryResponseFut<StreamProperties>

Gets the properties associated with this stream. The value returned is identical to the one corresponding to this stream as returned by |Device.GetConfigurations|.

pub fn get_properties2(&self) -> QueryResponseFut<StreamProperties2>

Gets the properties associated with this stream. The value returned is identical to the one corresponding to this stream as returned by |Device.GetConfigurations|.

pub fn set_crop_region(&self, region: Option<&RectF>) -> Result<(), Error>

Sets the Stream’s crop region to the provided region, with the top-left of the image represented by (0,0) and the bottom-right of the image represented by (1,1). The resulting content is subsequently scaled to fill the output buffer. If the implementation does not precisely support the provided value, it will be expanded to the minimum region that covers the provided region. If region is set to null, the crop region is unset, which is equivalent to specifying a region covering the entire image. Upon initial connection, the region is unset. If the stream does not support crop region, the connection is closed with the ZX_ERR_NOT_SUPPORTED epitaph.

pub fn watch_crop_region(&self) -> QueryResponseFut<Option<Box<RectF>>>

Returns the crop region if it has changed from a previously returned value, or is called by a client for the first time. Frame callbacks received after receiving this callback reflect the use of the new region. See SetCropRegion for a description of the region parameter.

pub fn set_resolution(&self, coded_size: &Size) -> Result<(), Error>

Sets the resolution of the stream to the provided value. If the implementation does not precisely support the provided value, it will be expanded to the minimum resolution that exceeds the provided resolution.

pub fn watch_resolution(&self) -> QueryResponseFut<Size>

Returns the resolution if it has changed from a previously returned value, or is called by a client for the first time. Frame callbacks received after receiving this callback reflect the new resolution.

pub fn set_buffer_collection( &self, token: Option<ClientEnd<BufferCollectionTokenMarker>> ) -> Result<(), Error>

If non-null, requests renegotiation of the buffer collection backing this stream, and identifies this client as a participant in buffer negotiation. If null, identifies this client as a non-participant in buffer negotiation. Upon initial connection, the client is a non-participant. After registering as a participant, clients must always have an outstanding call to WatchBufferCollection to receive tokens from the server so that they are able to respond to current and future renegotiation requests.

pub fn watch_buffer_collection( &self ) -> QueryResponseFut<ClientEnd<BufferCollectionTokenMarker>>

Returns when the server or any buffer negotiation participant (including the current client) requires buffer renegotiation, and the current client is registered as a participant. Frame callbacks received after receiving this callback apply to the newly negotiated collection.

Because the camera can output directly to these collections, each client should support reading from a |fuchsia.sysmem.CoherencyDomain| of RAM, and set |ram_domain_supported| in their |fuchsia.sysmem.BufferMemoryConstraints|.

pub fn watch_orientation(&self) -> QueryResponseFut<Orientation>

Returns the orientation if it has changed from a previously returned value, or is called by a client for the first time. Frame callbacks received after receiving this callback reflect the new orientation.

pub fn get_next_frame(&self) -> QueryResponseFut<FrameInfo>

See GetNextFrame2.

pub fn get_next_frame2(&self) -> QueryResponseFut<FrameInfo2>

Request the next available frame for this stream that has not yet been acquired by the current client. Multiple participating clients may concurrently hold the same frame. Returns when the stream has completed populating the buffer and may be read by the client, provided the number of unreleased buffers is less than the count provided via the most recently negotiated buffer collection token. If a buffer renegotiation is in progress, this call will return only after the negotiation is complete and a new collection is available.

pub fn rebind(&self, request: ServerEnd<Stream_Marker>) -> Result<(), Error>

Request another connection to this Stream. This allows a client to delegate different operations to different coordinated clients, or have multiple clients concurrently observe frames produced by the stream.

Trait Implementations

impl Clone for Stream_Proxy

fn clone(&self) -> Stream_Proxy

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Stream_Proxy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Proxy for Stream_Proxy

type Protocol = Stream_Marker

The protocol which this Proxy controls.

fn from_channel(inner: AsyncChannel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Result<AsyncChannel, Self>

Attempt to convert the proxy back into a channel.

fn as_channel(&self) -> &AsyncChannel

Get a reference to the proxy’s underlying channel.

fn into_client_end(self) -> Result<ClientEnd<Self::Protocol>, Self>

Attempt to convert the proxy back into a client end.

fn is_closed(&self) -> bool

Returns true if the proxy has received the PEER_CLOSED signal.

fn on_closed(&self) -> OnSignals<'_, Unowned<'_, Handle>>

Returns a future that completes when the proxy receives the PEER_CLOSED signal.

impl Stream_ProxyInterface for Stream_Proxy

type GetPropertiesResponseFut = QueryResponseFut<StreamProperties>

fn get_properties(&self) -> Self::GetPropertiesResponseFut

type GetProperties2ResponseFut = QueryResponseFut<StreamProperties2>

fn get_properties2(&self) -> Self::GetProperties2ResponseFut

fn set_crop_region(&self, region: Option<&RectF>) -> Result<(), Error>

type WatchCropRegionResponseFut = QueryResponseFut<Option<Box<RectF>>>

fn watch_crop_region(&self) -> Self::WatchCropRegionResponseFut

fn set_resolution(&self, coded_size: &Size) -> Result<(), Error>

type WatchResolutionResponseFut = QueryResponseFut<Size>

fn watch_resolution(&self) -> Self::WatchResolutionResponseFut

fn set_buffer_collection( &self, token: Option<ClientEnd<BufferCollectionTokenMarker>> ) -> Result<(), Error>

type WatchBufferCollectionResponseFut = QueryResponseFut<ClientEnd<BufferCollectionTokenMarker>>

fn watch_buffer_collection(&self) -> Self::WatchBufferCollectionResponseFut

type WatchOrientationResponseFut = QueryResponseFut<Orientation>

fn watch_orientation(&self) -> Self::WatchOrientationResponseFut

type GetNextFrameResponseFut = QueryResponseFut<FrameInfo>

fn get_next_frame(&self) -> Self::GetNextFrameResponseFut

type GetNextFrame2ResponseFut = QueryResponseFut<FrameInfo2>

fn get_next_frame2(&self) -> Self::GetNextFrame2ResponseFut

fn rebind(&self, request: ServerEnd<Stream_Marker>) -> Result<(), Error>