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/* Copyright (c) 2012 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>PPP_VideoCapture_Dev</code> interface.
*/
label Chrome {
M15 = 0.1
};
/**
* Video Capture client interface. See |PPB_VideoCapture_Dev| for general theory
* of operation.
*/
[macro="PPP_VIDEO_CAPTURE_DEV_INTERFACE"]
interface PPP_VideoCapture_Dev {
/**
* Signals the capture device information, such as resolution and frame rate,
* and the array of buffers that the browser will use to send pixel data.
*
* |info| is a pointer to the PP_VideoCaptureDeviceInfo_Dev structure
* containing resolution and frame rate.
* |buffer_count| is the number of buffers, and |buffers| is the array of
* PPB_Buffer_Dev buffers.
*
* Note: the buffers are passed without an extra reference. The plugin is
* expected to add its own references to the buffers.
*/
void OnDeviceInfo([in] PP_Instance instance,
[in] PP_Resource video_capture,
[in] PP_VideoCaptureDeviceInfo_Dev info,
[in] uint32_t buffer_count,
[in, size_is(buffer_count)] PP_Resource[] buffers);
/**
* Signals status changes on the VideoCapture. |status| is a
* one of the values from PP_VideoCaptureStatus_Dev;
*/
void OnStatus([in] PP_Instance instance,
[in] PP_Resource video_capture,
[in] uint32_t status);
/**
* Signals an error from the video capture system.
*
* Errors that can be generated:
* - PP_ERROR_NOMEMORY: not enough memory was available to allocate buffers.
* - PP_ERROR_FAILED: video capture could not start.
*/
void OnError([in] PP_Instance instance,
[in] PP_Resource video_capture,
[in] uint32_t error_code);
/**
* Signals that a buffer is available for consumption by the plugin.
*
* |buffer| is the index of the buffer, in the array returned by OnDeviceInfo.
*/
void OnBufferReady([in] PP_Instance instance,
[in] PP_Resource video_capture,
[in] uint32_t buffer);
};
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