| /* Copyright 2014 The Chromium Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /** |
| * Defines the <code>PPB_CameraDevice_Private</code> interface. Used for |
| * manipulating a camera device. |
| */ |
| |
| [generate_thunk] |
| |
| label Chrome { |
| M42 = 0.1 |
| }; |
| |
| /** |
| * To query camera capabilities: |
| * 1. Get a PPB_CameraDevice_Private object by Create(). |
| * 2. Open() camera device with track id of MediaStream video track. |
| * 3. Call GetCameraCapabilities() to get a |
| * <code>PPB_CameraCapabilities_Private</code> object, which can be used to |
| * query camera capabilities. |
| */ |
| interface PPB_CameraDevice_Private { |
| /** |
| * Creates a PPB_CameraDevice_Private resource. |
| * |
| * @param[in] instance A <code>PP_Instance</code> identifying one instance |
| * of a module. |
| * |
| * @return A <code>PP_Resource</code> corresponding to a |
| * PPB_CameraDevice_Private resource if successful, 0 if failed. |
| */ |
| PP_Resource Create([in] PP_Instance instance); |
| |
| /** |
| * Determines if a resource is a camera device resource. |
| * |
| * @param[in] resource The <code>PP_Resource</code> to test. |
| * |
| * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given |
| * resource is a camera device resource or <code>PP_FALSE</code> |
| * otherwise. |
| */ |
| PP_Bool IsCameraDevice([in] PP_Resource resource); |
| |
| /** |
| * Opens a camera device. |
| * |
| * @param[in] camera_device A <code>PP_Resource</code> corresponding to a |
| * camera device resource. |
| * @param[in] device_id A <code>PP_Var</code> identifying a camera device. The |
| * type is string. The ID can be obtained from |
| * navigator.mediaDevices.enumerateDevices() or MediaStreamVideoTrack.id. |
| * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon |
| * completion of <code>Open()</code>. |
| * |
| * @return An error code from <code>pp_errors.h</code>. |
| */ |
| int32_t Open( |
| [in] PP_Resource camera_device, |
| [in] PP_Var device_id, |
| [in] PP_CompletionCallback callback); |
| |
| /** |
| * Disconnects from the camera and cancels all pending requests. |
| * After this returns, no callbacks will be called. If <code> |
| * PPB_CameraDevice_Private</code> is destroyed and is not closed yet, this |
| * function will be automatically called. Calling this more than once has no |
| * effect. |
| * |
| * @param[in] camera_device A <code>PP_Resource</code> corresponding to a |
| * camera device resource. |
| */ |
| void Close([in] PP_Resource camera_device); |
| |
| /** |
| * Gets the camera capabilities. |
| * |
| * The camera capabilities do not change for a given camera source. |
| * |
| * @param[in] camera_device A <code>PP_Resource</code> corresponding to a |
| * camera device resource. |
| * @param[out] capabilities A <code>PPB_CameraCapabilities_Private</code> for |
| * storing the camera capabilities on success. Otherwise, the value will not |
| * be changed. |
| * @param[in] callback <code>PP_CompletionCallback</code> to be called upon |
| * completion of <code>GetCameraCapabilities()</code>. |
| * |
| * @return An int32_t containing a result code from <code>pp_errors.h</code>. |
| */ |
| int32_t GetCameraCapabilities([in] PP_Resource camera_device, |
| [out] PP_Resource capabilities, |
| [in] PP_CompletionCallback callback); |
| }; |