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51 lines
2.0 KiB
Plaintext
51 lines
2.0 KiB
Plaintext
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// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module audio.mojom;
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import "media/mojo/interfaces/audio_parameters.mojom";
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import "services/audio/public/mojom/audio_device_description.mojom";
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// Provides information about audio system.
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interface SystemInfo {
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// Replies with parameters for a specified input device (empty parameters if
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// the device is not found).
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GetInputStreamParameters(string device_id)
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=> (media.mojom.AudioParameters? params);
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// Replies with parameters for a specified output device (empty parameters if
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// the device is not found).
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GetOutputStreamParameters(string device_id)
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=> (media.mojom.AudioParameters? params);
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// Whether or not the system has input audio devices.
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HasInputDevices() => (bool has_input_devices);
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// Whether or not the system has output audio devices.
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HasOutputDevices() => (bool has_output_devices);
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// Replies with descriptions of input audio devices.
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GetInputDeviceDescriptions()
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=> (array<audio.mojom.AudioDeviceDescription> device_descriptions);
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// Replies with descriptions of output audio devices.
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GetOutputDeviceDescriptions()
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=> (array<audio.mojom.AudioDeviceDescription> device_descriptions);
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// Replies with an id of an output device associated with a specified input
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// device (empty if there is no association).
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GetAssociatedOutputDeviceID(string input_device_id)
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=> (string? associated_output_device_id);
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// Replies with audio parameters for the specified input device (empty if
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// device is not found) and the device ID of the associated output device
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// (empty if there is no association).
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// This is a conjunction of GetInputStreamParameters() and
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// GetAssociatedOutputDeviceID() used to save on round trips.
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// TODO(olka, guido): consider getting rid of it.
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GetInputDeviceInfo(string input_device_id)
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=> (media.mojom.AudioParameters? input_params,
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string? associated_output_device_id);
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};
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