101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* vie_frame_provider_base.h
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*/
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#ifndef WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_FRAME_PROVIDER_BASE_H_
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#define WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_FRAME_PROVIDER_BASE_H_
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// Defines
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#include "typedefs.h"
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#include "module_common_types.h"
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#include "map_wrapper.h"
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namespace webrtc {
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class CriticalSectionWrapper;
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class VideoEncoder;
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class ViEFrameCallback
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{
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public:
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virtual void DeliverFrame(int id, VideoFrame& videoFrame, int numCSRCs = 0,
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const WebRtc_UWord32 CSRC[kRtpCsrcSize] = NULL) = 0;
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/*
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* Delay has changed from the provider.
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* frameDelay new capture delay in Ms.
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*/
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virtual void DelayChanged(int id, int frameDelay)=0;
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/*
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Fetch the width, height and frame rate preferred by this observer.
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return 0 on success, -1 otherwise.
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*/
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virtual int GetPreferedFrameSettings(int &width, int &height,
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int &frameRate)=0;
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virtual void ProviderDestroyed(int id) = 0;
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protected:
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virtual ~ViEFrameCallback()
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{
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}
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;
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};
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class ViEFrameProviderBase
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{
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public:
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ViEFrameProviderBase(int Id, int engineId);
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virtual ~ViEFrameProviderBase();
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int Id();
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// Register frame callbacks, i.e. a receiver of the captured frame.
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virtual int RegisterFrameCallback(int observerId,
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ViEFrameCallback* callbackObject);
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virtual int
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DeregisterFrameCallback(const ViEFrameCallback* callbackObject);
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virtual bool
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IsFrameCallbackRegistered(const ViEFrameCallback* callbackObject);
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int NumberOfRegistersFrameCallbacks();
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// FrameCallbackChanged
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// Inherited classes should check for new frameSettings and reconfigure output if possible.
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// Return 0 on success, -1 otherwise.
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virtual int FrameCallbackChanged() = 0;
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protected:
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void DeliverFrame(VideoFrame& videoFrame, int numCSRCs = 0,
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const WebRtc_UWord32 CSRC[kRtpCsrcSize] = NULL);
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void SetFrameDelay(int frameDelay);
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int FrameDelay();
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int GetBestFormat(int& bestWidth, int& bestHeight, int& bestFrameRate);
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int _id;
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int _engineId;
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protected:
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// Frame callbacks
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MapWrapper _frameCallbackMap;
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CriticalSectionWrapper& _providerCritSect;
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private:
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VideoFrame* _ptrExtraFrame;
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//Members
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int _frameDelay;
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};
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} //namespace webrtc
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#endif // WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_FRAME_PROVIDER_BASE_H_
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