79 lines
3.1 KiB
Text
79 lines
3.1 KiB
Text
/*
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* Copyright (C) 2016 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.tv.input@1.0;
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import ITvInputCallback;
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interface ITvInput {
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/**
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* Sets a callback for events.
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*
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* Note that initially no device is available in the client side, so the
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* implementation must notify all the currently available devices including
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* static devices via callback once callback is set.
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*
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* @param callback Callback object to pass events.
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*/
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@entry
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@exit
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@callflow(next={"getStreamConfigurations"})
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setCallback(ITvInputCallback callback);
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/**
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* Gets stream configurations for a specific device.
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*
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* The configs object is valid only until the next
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* STREAM_CONFIGURATIONS_CHANGED event.
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*
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* @param deviceId Device ID for the configurations.
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* @return result OK upon success. Otherwise,
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* INVALID_ARGUMENTS if the given device ID is not valid.
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* @return configurations An array of available configurations.
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*/
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@callflow(next={"openStream", "getStreamConfigurations", "closeStream"})
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getStreamConfigurations(int32_t deviceId)
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generates (Result result, vec<TvStreamConfig> configurations);
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/**
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* Opens a specific stream in a device.
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*
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* @param deviceId Device ID for the steam to open.
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* @param streamId Steam ID for the steam to open. Must be one of the
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* stream IDs returned from getStreamConfigurations().
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* @return result OK upon success. Otherwise,
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* INVALID_ARGUMENTS if any of given IDs are not valid;
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* INVALID_STATE if the stream with the given ID is already open;
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* NO_RESOURCE if the client must close other streams to open the
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* stream.
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* @return sidebandStream handle for sideband stream.
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*/
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@callflow(next={"closeStream", "getStreamConfigurations", "openStream"})
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openStream(int32_t deviceId, int32_t streamId)
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generates (Result result, handle sidebandStream);
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/**
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* Closes a specific stream in a device.
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*
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* @param deviceId Device ID for the steam to open.
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* @param streamId Steam ID for the steam to open.
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* @return result OK upon success. Otherwise,
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* INVALID_ARGUMENTS if any of given IDs are not valid;
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* INVALID_STATE if the stream with the given ID is not open.
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*/
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@callflow(next={"getStreamConfigurations", "openStream", "closeStream"})
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closeStream(int32_t deviceId, int32_t streamId) generates (Result result);
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};
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