/* Copyright 2012 The Chromium Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/**
* This file defines the <code>PPB_DeviceRef_Dev</code> interface.
*/
[generate_thunk]
label Chrome {
M18 = 0.1
};
/**
* Defines the callback type to receive device change notifications for
* <code>PPB_AudioInput_Dev.MonitorDeviceChange()</code> and
* <code>PPB_VideoCapture_Dev.MonitorDeviceChange()</code>.
*
* @param[inout] user_data The opaque pointer that the caller passed into
* <code>MonitorDeviceChange()</code>.
* @param[in] device_count How many devices in the array.
* @param[in] devices An array of <code>PPB_DeviceRef_Dev</code>. Please note
* that the ref count of the elements is not increased on behalf of the plugin.
*/
typedef void PP_MonitorDeviceChangeCallback(
[inout] mem_t user_data,
[in] uint32_t device_count,
[in, size_is(device_count)] PP_Resource[] devices);
/**
* Device types.
*/
[assert_size(4)]
enum PP_DeviceType_Dev {
PP_DEVICETYPE_DEV_INVALID = 0,
PP_DEVICETYPE_DEV_AUDIOCAPTURE = 1,
PP_DEVICETYPE_DEV_VIDEOCAPTURE = 2,
PP_DEVICETYPE_DEV_AUDIOOUTPUT = 3,
PP_DEVICETYPE_DEV_MAX = PP_DEVICETYPE_DEV_AUDIOOUTPUT
};
interface PPB_DeviceRef_Dev {
/**
* Determines if the provided resource is a device reference.
*
* @param[in] resource A <code>PP_Resource</code> corresponding to a generic
* resource.
*
* @return A <code>PP_Bool</code> that is <code>PP_TRUE</code> if the given
* resource is a device reference, otherwise <code>PP_FALSE</code>.
*/
PP_Bool IsDeviceRef([in] PP_Resource resource);
/**
* Gets the device type.
*
* @param[in] device_ref A <code>PP_Resource</code> corresponding to a device
* reference.
*
* @return A <code>PP_DeviceType_Dev</code> value.
*/
[on_failure=PP_DEVICETYPE_DEV_INVALID]
PP_DeviceType_Dev GetType([in] PP_Resource device_ref);
/**
* Gets the device name.
*
* @param[in] device_ref A <code>PP_Resource</code> corresponding to a device
* reference.
*
* @return A <code>PP_Var</code> of type <code>PP_VARTYPE_STRING</code>
* containing the name of the device if successful; a <code>PP_Var</code> of
* type <code>PP_VARTYPE_UNDEFINED</code> if failed.
*/
PP_Var GetName([in] PP_Resource device_ref);
};
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