New Pepper interfaces for audio/video capture device enumeration.

ppapi/api/dev/ppb_stream_device_ref_dev.idl

+/* Copyright (c) 2011 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.
+ */
+
+/**
+ * This file defines the <code>PPB_StreamDeviceRef_Dev</code> interface.

[viettrungluu, 2011/12/17 01:37:03]

There's very little stream-specific about this.

We may eventually want to enumerate other kinds of devices as well.

[yzshen1, 2011/12/19 19:11:55]

Thanks! Good idea!
On 2011/12/17 01:37:03, viettrungluu wrote:

+ */
+label Chrome {
+  M18 = 0.1
+};
+
+/**
+ * Media stream types.

[viettrungluu, 2011/12/17 01:37:03]

I would call these "device types".

[yzshen1, 2011/12/19 19:11:55]

Done.

+ */
+[assert_size(4)]
+enum PP_StreamType_Dev {
+  PP_STREAMTYPE_AUDIOCAPTURE = 0,
+  PP_STREAMTYPE_VIDEOCAPTURE = 1
+};
+
+interface PPB_StreamDeviceRef_Dev {
+  /**
+   * Determines if the provided resource is a stream 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 stream device reference, otherwise <code>PP_FALSE</code>.
+   */
+  PP_Bool IsStreamDeviceRef([in] PP_Resource resource);
+
+  /**
+   * Gets the media stream type that the device provides.
+   *
+   * @param[in] device_ref A <code>PP_Resource</code> corresponding to a stream
+   * device reference.
+   *
+   * @return A <code>PP_StreamType_Dev</code> value.
+   */
+  PP_StreamType_Dev GetType([in] PP_Resource device_ref);
+
+  /**
+   * Gets the name of the media stream device.
+   *
+   * @param[in] device_ref A <code>PP_Resource</code> corresponding to a stream
+   * device reference.
+   *
+   * @return A <code>PP_Var</code> containing the name of the device.
+   */
+  PP_Var GetName([in] PP_Resource device_ref);
+};