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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_VIDEO_ENGINE_VIE_INPUT_MANAGER_H_
#define WEBRTC_VIDEO_ENGINE_VIE_INPUT_MANAGER_H_
#include <map>
#include "webrtc/modules/video_capture/include/video_capture.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
#include "webrtc/typedefs.h"
#include "webrtc/video_engine/include/vie_capture.h"
#include "webrtc/video_engine/vie_defines.h"
#include "webrtc/video_engine/vie_frame_provider_base.h"
#include "webrtc/video_engine/vie_manager_base.h"
namespace webrtc {
class Config;
class CriticalSectionWrapper;
class ProcessThread;
class RWLockWrapper;
class ViECapturer;
class ViEExternalCapture;
class VoiceEngine;
class ViEInputManager : private ViEManagerBase {
friend class ViEInputManagerScoped;
public:
ViEInputManager(int engine_id, const Config& config);
~ViEInputManager();
void SetModuleProcessThread(ProcessThread* module_process_thread);
// Returns number of capture devices.
int NumberOfCaptureDevices();
// Gets name and id for a capture device.
int GetDeviceName(uint32_t device_number,
char* device_nameUTF8,
uint32_t device_name_length,
char* device_unique_idUTF8,
uint32_t device_unique_idUTF8Length);
// Returns the number of capture capabilities for a specified device.
int NumberOfCaptureCapabilities(const char* device_unique_idUTF8);
// Gets a specific capability for a capture device.
int GetCaptureCapability(const char* device_unique_idUTF8,
const uint32_t device_capability_number,
CaptureCapability& capability);
// Show OS specific Capture settings.
int DisplayCaptureSettingsDialogBox(const char* device_unique_idUTF8,
const char* dialog_titleUTF8,
void* parent_window,
uint32_t positionX,
uint32_t positionY);
int GetOrientation(const char* device_unique_idUTF8,
RotateCapturedFrame& orientation);
// Creates a capture module for the specified capture device and assigns
// a capture device id for the device.
// Return zero on success, ViEError on failure.
int CreateCaptureDevice(const char* device_unique_idUTF8,
const uint32_t device_unique_idUTF8Length,
int& capture_id);
int CreateCaptureDevice(VideoCaptureModule* capture_module,
int& capture_id);
int CreateExternalCaptureDevice(ViEExternalCapture*& external_capture,
int& capture_id);
int DestroyCaptureDevice(int capture_id);
private:
// Gets and allocates a free capture device id. Assumed protected by caller.
bool GetFreeCaptureId(int* freecapture_id);
// Frees a capture id assigned in GetFreeCaptureId.
void ReturnCaptureId(int capture_id);
// Gets the ViEFrameProvider for this capture observer.
ViEFrameProviderBase* ViEFrameProvider(
const ViEFrameCallback* capture_observer) const;
// Gets the ViEFrameProvider for this capture observer.
ViEFrameProviderBase* ViEFrameProvider(int provider_id) const;
// Gets the ViECapturer for the capture device id.
ViECapturer* ViECapturePtr(int capture_id) const;
const Config& config_;
int engine_id_;
scoped_ptr<CriticalSectionWrapper> map_cs_;
scoped_ptr<CriticalSectionWrapper> device_info_cs_;
typedef std::map<int, ViEFrameProviderBase*> FrameProviderMap;
FrameProviderMap vie_frame_provider_map_;
// Capture devices.
VideoCaptureModule::DeviceInfo* capture_device_info_;
int free_capture_device_id_[kViEMaxCaptureDevices];
ProcessThread* module_process_thread_; // Weak.
};
// Provides protected access to ViEInputManater.
class ViEInputManagerScoped: private ViEManagerScopedBase {
public:
explicit ViEInputManagerScoped(const ViEInputManager& vie_input_manager);
ViECapturer* Capture(int capture_id) const;
ViEFrameProviderBase* FrameProvider(int provider_id) const;
ViEFrameProviderBase* FrameProvider(const ViEFrameCallback*
capture_observer) const;
};
} // namespace webrtc
#endif // WEBRTC_VIDEO_ENGINE_VIE_INPUT_MANAGER_H_
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