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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.
#ifndef PPAPI_CPP_DEV_VIDEO_CAPTURE_DEV_H_
#define PPAPI_CPP_DEV_VIDEO_CAPTURE_DEV_H_
#include <vector>
#include "ppapi/c/dev/pp_video_capture_dev.h"
#include "ppapi/cpp/resource.h"
namespace pp {
class CompletionCallback;
class DeviceRef_Dev;
class Instance;
class VideoCapture_Dev : public Resource {
public:
explicit VideoCapture_Dev(const Instance& instance);
VideoCapture_Dev(PP_Resource resource);
VideoCapture_Dev(const VideoCapture_Dev& other);
virtual ~VideoCapture_Dev();
VideoCapture_Dev& operator=(const VideoCapture_Dev& other);
// Returns true if the required interface is available.
static bool IsAvailable();
// |devices| must stay alive until either this VideoCapture_Dev object goes
// away or |callback| is run.
int32_t EnumerateDevices(std::vector<DeviceRef_Dev>* devices,
const CompletionCallback& callback);
int32_t Open(const DeviceRef_Dev& device_ref,
const PP_VideoCaptureDeviceInfo_Dev& requested_info,
uint32_t buffer_count,
const CompletionCallback& callback);
int32_t StartCapture();
int32_t ReuseBuffer(uint32_t buffer);
int32_t StopCapture();
void Close();
private:
struct EnumerateDevicesState;
void AbortEnumerateDevices();
// |user_data| is an EnumerateDevicesState object. It is this method's
// responsibility to delete it.
static void OnEnumerateDevicesComplete(void* user_data, int32_t result);
// Not owned by this object.
EnumerateDevicesState* enum_state_;
};
} // namespace pp
#endif // PPAPI_CPP_DEV_VIDEO_CAPTURE_DEV_H_
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