ba362a8c19
- This interface is only suitable for special camera injection hal, general camera hal does not need to implement it. Test: Camera VTS Bug: 219684073 Change-Id: I9b70e4640dff205008f3d6270f402b720b6b4434
88 lines
4 KiB
Text
88 lines
4 KiB
Text
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware.camera.device@3.7;
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import android.hardware.camera.common@1.0::Status;
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import @3.2::BufferCache;
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import @3.2::CameraMetadata;
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import @3.5::StreamConfiguration;
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import @3.6::HalStreamConfiguration;
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import @3.7::ICameraDeviceSession;
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/**
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* Injection camera device active session interface.
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*
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* Note that this is implemented on a special camera injection hal, if it is a
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* general camera hal, it is not necessary to implement this interface.
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*
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* When an external camera is injected to replace the internal camera session, the
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* injection session will be established in camera framework, and then
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* configureInjectionStreams() will be called to ask the external camera to
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* configure itself to match the stream configuration of the internal camera.
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*
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* Camera framework is responsible to close the injection session once the client
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* switch back to internal camera streaming.
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*
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* If the external camera cannot support the configuration ILLEGAL_ARGUMENT will
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* be returned.
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*/
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interface ICameraInjectionSession extends @3.7::ICameraDeviceSession {
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/**
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* configureInjectionStreams:
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*
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* Identical to @3.7::ICameraDeviceSession.configureStreams_3_7, except that:
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*
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* @param requestedConfiguration
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* The current stream configuration of the internal camera session and
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* the injection camera must follow the configuration without overriding
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* any part of it.
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* @param characteristics
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* The characteristics of internal camera contains a list of keys so that
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* the stream continuity can be maintained after the external camera is
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* injected.
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*
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* @return status Status code for the operation, one of:
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* OK:
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* On successful stream configuration.
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* INTERNAL_ERROR:
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* If there has been a fatal error and the device is no longer
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* operational. Only close() can be called successfully by the
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* framework after this error is returned.
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* ILLEGAL_ARGUMENT:
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* If the requested stream configuration is invalid. Some examples
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* of invalid stream configurations include:
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* - Not including any OUTPUT streams
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* - Including streams with unsupported formats, or an unsupported
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* size for that format.
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* - Including too many output streams of a certain format.
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* - Unsupported rotation configuration
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* - Stream sizes/formats don't satisfy the
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* StreamConfigurationMode requirements
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* for non-NORMAL mode, or the requested operation_mode is not
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* supported by the HAL.
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* - Unsupported usage flag
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* The camera service cannot filter out all possible illegal stream
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* configurations, since some devices may support more simultaneous
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* streams or larger stream resolutions than the minimum required
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* for a given camera device hardware level. The HAL must return an
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* ILLEGAL_ARGUMENT for any unsupported stream set, and then be
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* ready to accept a future valid stream configuration in a later
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* configureInjectionStreams call.
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*/
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configureInjectionStreams(StreamConfiguration requestedConfiguration,
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CameraMetadata characteristics) generates (Status status);
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};
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