Project: /_project.yaml Book: /_book.yaml
Defined in fuchsia.camera2/manager.fidl
Notifies the client when a camera becomes available. A number of these events will be sent when a client first connects to this protocol. |device_id| is used to identify the camera. The device_id should not change throughout the lifetime of the camera. |last_known_camera| is set to true when the Camera Manager has notified the client of all the devices it currently knows about. |description| describes the properties of the camera.
Notifies the client when a camera becomes unavailable.
Notifies the client when a camera becomes muted or unmuted. |device_id| refers to the device_id from the description of a previous OnDeviceAvailable call.
AcknowledgeDeviceEvent must be called after any of the above events before more events will be sent.
Connect to a camera stream: |device_id| Refers to a specific device_id that has been advertised by OnDeviceAvailable. |constraints| contains a set of constraints on the requested stream. The Camera Manager will attempt to find a stream that meets the constraints. If multiple streams match, one of the matching streams will be connected. |token| refers to a Sysmem buffer allocation that will be used to pass images using the Stream protocol. The Camera Manager will apply a BufferCollectionContraints related to the image format(s), so the client does not need to apply any ImageFormatConstraints. Sync is assumed to have been called on |token| before it is passed to ConnectToStream. Since |constraints| may not dictate a specific format, the initial format of images on the stream is indicated on the response. The connection is considered to be successful once a response has been given, unless |stream| is closed.
Defined in fuchsia.camera2/manager.fidl
Mutes a camera. This is independent from stopping or closing a stream. A muted camera will not produce any more images until unmute is called. You can still connect to streams from a muted camera, but they will not produce frames until the camera is unmuted. |device_id| refers to the device_id from a previous OnDeviceAvailable call.
Defined in fuchsia.camera2/stream.fidl
Control Operations Starts the streaming of frames.
Stops the streaming of frames.
Unlocks the specified frame, allowing the driver to reuse the memory.
Sent by the driver to the client when a frame is available for processing, or an error occurred. The frame is considered read-locked by the client after this message. The client must call ReleaseFrame to release the read-lock for a non-error frame, or the consumer will eventually run out of buffers. If a frame has an error, the client must call AcknowledgeFrameError before another OnFrameAvailable will be called with an error frame.
Provides flow control for receiving frame errors. See OnFrameAvailable comment.
Data operations This is used by clients to provide inputs for region of interest selection. Inputs are the x & y coordinates for the new bounding box. For streams which do not support smart framing, this would return an error.
Change the image format of the stream. This is called when clients want to dynamically change the resolution of the stream while the streaming is is going on.
Get the image formats that this stream supports.
Defined in fuchsia.camera2/manager.fidl
Notifies the client when a camera becomes available. A number of these events will be sent when a client first connects to this protocol. |device_id| is used to identify the camera. The device_id should not change throughout the lifetime of the camera. |last_known_camera| is set to true when the Camera Manager has notified the client of all the devices it currently knows about. |description| describes the properties of the camera.
Notifies the client when a camera becomes unavailable.
Notifies the client when a camera becomes muted or unmuted. |device_id| refers to the device_id from the description of a previous OnDeviceAvailable call.
AcknowledgeDeviceEvent must be called after any of the above events before more events will be sent.
Connect to a camera stream: |device_id| Refers to a specific device_id that has been advertised by OnDeviceAvailable. |constraints| contains a set of constraints on the requested stream. The Camera Manager will attempt to find a stream that meets the constraints. If multiple streams match, one of the matching streams will be connected. |token| refers to a Sysmem buffer allocation that will be used to pass images using the Stream protocol. The Camera Manager will apply a BufferCollectionContraints related to the image format(s), so the client does not need to apply any ImageFormatConstraints. Sync is assumed to have been called on |token| before it is passed to ConnectToStream. Since |constraints| may not dictate a specific format, the initial format of images on the stream is indicated on the response. The connection is considered to be successful once a response has been given, unless |stream| is closed.
Defined in fuchsia.camera2/manager.fidl
Mutes a camera. This is independent from stopping or closing a stream. A muted camera will not produce any more images until unmute is called. You can still connect to streams from a muted camera, but they will not produce frames until the camera is unmuted. |device_id| refers to the device_id from a previous OnDeviceAvailable call.
Defined in fuchsia.camera2/stream.fidl
Control Operations Starts the streaming of frames.
Stops the streaming of frames.
Unlocks the specified frame, allowing the driver to reuse the memory.
Sent by the driver to the client when a frame is available for processing, or an error occurred. The frame is considered read-locked by the client after this message. The client must call ReleaseFrame to release the read-lock for a non-error frame, or the consumer will eventually run out of buffers. If a frame has an error, the client must call AcknowledgeFrameError before another OnFrameAvailable will be called with an error frame.
Provides flow control for receiving frame errors. See OnFrameAvailable comment.
Data operations This is used by clients to provide inputs for region of interest selection. Inputs are the x & y coordinates for the new bounding box. For streams which do not support smart framing, this would return an error.
Change the image format of the stream. This is called when clients want to dynamically change the resolution of the stream while the streaming is is going on.
Get the image formats that this stream supports.
Defined in fuchsia.camera2/stream.fidl
Sent by the driver to the client when a frame is available for processing, or an error occurred.
Defined in fuchsia.camera2/stream.fidl
Defined in fuchsia.camera2/stream.fidl
Sent by the driver to the client when a frame is available for processing, or an error occurred.
Defined in fuchsia.camera2/stream.fidl
Type: uint32
Defined in fuchsia.camera2/manager.fidl
Type: uint32
Defined in fuchsia.camera2/stream.fidl
Status to be set when a frame is signalled available.
Type: uint32
Defined in fuchsia.camera2/manager.fidl
Type: uint32
Defined in fuchsia.camera2/stream.fidl
Status to be set when a frame is signalled available.
Defined in fuchsia.camera2/manager.fidl
These constraints are given to the Camera Manager when requesting a stream. The Camera Manager will use these constraints to match an appropriate stream.
Defined in fuchsia.camera2/manager.fidl
Identifying information about the device.
Defined in fuchsia.camera2/stream.fidl
Defined in fuchsia.camera2/stream.fidl
Defined in fuchsia.camera2/manager.fidl
These constraints are given to the Camera Manager when requesting a stream. The Camera Manager will use these constraints to match an appropriate stream.
Defined in fuchsia.camera2/manager.fidl
Identifying information about the device.
Defined in fuchsia.camera2/stream.fidl
Defined in fuchsia.camera2/stream.fidl
Type: uint32
Type: uint32