
This fixes a variety of MSVC warnings about value truncations when implicitly storing the 64-bit values we get back from e.g. TimeTicks in 32-bit objects, and removes the need for a number of explicit casts. This also moves a number of constants so they're declared right where they're used, which is easier to read and maintain, and makes some of them of integral type rather than using the "enum hack". BUG=chromium:81439 TEST=none R=tommi@webrtc.org Review URL: https://webrtc-codereview.appspot.com/33649004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7905 4adac7df-926f-26a2-2b94-8c16560cd09d
289 lines
10 KiB
C++
289 lines
10 KiB
C++
/*
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* Copyright (c) 2012 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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#ifndef WEBRTC_MODULES_VIDEO_RENDER_MAIN_INTERFACE_VIDEO_RENDER_H_
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#define WEBRTC_MODULES_VIDEO_RENDER_MAIN_INTERFACE_VIDEO_RENDER_H_
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/*
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* video_render.h
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*
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* This header file together with module.h and module_common_types.h
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* contains all of the APIs that are needed for using the video render
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* module class.
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*
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*/
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#include "webrtc/modules/interface/module.h"
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#include "webrtc/modules/video_render/include/video_render_defines.h"
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namespace webrtc {
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// Class definitions
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class VideoRender: public Module
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{
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public:
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/*
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* Create a video render module object
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*
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* id - unique identifier of this video render module object
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* window - pointer to the window to render to
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* fullscreen - true if this is a fullscreen renderer
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* videoRenderType - type of renderer to create
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*/
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static VideoRender
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* CreateVideoRender(
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const int32_t id,
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void* window,
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const bool fullscreen,
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const VideoRenderType videoRenderType =
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kRenderDefault);
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/*
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* Destroy a video render module object
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*
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* module - object to destroy
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*/
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static void DestroyVideoRender(VideoRender* module);
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/*
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* Change the unique identifier of this object
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*
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* id - new unique identifier of this video render module object
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*/
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virtual int32_t ChangeUniqueId(const int32_t id) OVERRIDE = 0;
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virtual int64_t TimeUntilNextProcess() OVERRIDE = 0;
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virtual int32_t Process() OVERRIDE = 0;
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/**************************************************************************
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*
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* Window functions
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*
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***************************************************************************/
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/*
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* Get window for this renderer
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*/
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virtual void* Window() = 0;
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/*
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* Change render window
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*
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* window - the new render window, assuming same type as originally created.
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*/
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virtual int32_t ChangeWindow(void* window) = 0;
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/**************************************************************************
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*
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* Incoming Streams
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*
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***************************************************************************/
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/*
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* Add incoming render stream
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*
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* streamID - id of the stream to add
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* zOrder - relative render order for the streams, 0 = on top
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* left - position of the stream in the window, [0.0f, 1.0f]
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* top - position of the stream in the window, [0.0f, 1.0f]
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* right - position of the stream in the window, [0.0f, 1.0f]
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* bottom - position of the stream in the window, [0.0f, 1.0f]
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*
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* Return - callback class to use for delivering new frames to render.
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*/
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virtual VideoRenderCallback
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* AddIncomingRenderStream(const uint32_t streamId,
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const uint32_t zOrder,
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const float left, const float top,
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const float right, const float bottom) = 0;
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/*
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* Delete incoming render stream
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*
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* streamID - id of the stream to add
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*/
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virtual int32_t
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DeleteIncomingRenderStream(const uint32_t streamId) = 0;
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/*
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* Add incoming render callback, used for external rendering
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*
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* streamID - id of the stream the callback is used for
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* renderObject - the VideoRenderCallback to use for this stream, NULL to remove
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*
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* Return - callback class to use for delivering new frames to render.
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*/
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virtual int32_t
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AddExternalRenderCallback(const uint32_t streamId,
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VideoRenderCallback* renderObject) = 0;
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/*
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* Get the porperties for an incoming render stream
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*
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* streamID - [in] id of the stream to get properties for
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* zOrder - [out] relative render order for the streams, 0 = on top
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* left - [out] position of the stream in the window, [0.0f, 1.0f]
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* top - [out] position of the stream in the window, [0.0f, 1.0f]
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* right - [out] position of the stream in the window, [0.0f, 1.0f]
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* bottom - [out] position of the stream in the window, [0.0f, 1.0f]
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*/
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virtual int32_t
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GetIncomingRenderStreamProperties(const uint32_t streamId,
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uint32_t& zOrder,
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float& left, float& top,
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float& right, float& bottom) const = 0;
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/*
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* The incoming frame rate to the module, not the rate rendered in the window.
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*/
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virtual uint32_t
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GetIncomingFrameRate(const uint32_t streamId) = 0;
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/*
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* Returns the number of incoming streams added to this render module
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*/
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virtual uint32_t GetNumIncomingRenderStreams() const = 0;
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/*
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* Returns true if this render module has the streamId added, false otherwise.
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*/
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virtual bool
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HasIncomingRenderStream(const uint32_t streamId) const = 0;
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/*
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* Registers a callback to get raw images in the same time as sent
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* to the renderer. To be used for external rendering.
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*/
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virtual int32_t
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RegisterRawFrameCallback(const uint32_t streamId,
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VideoRenderCallback* callbackObj) = 0;
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/*
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* This method is usefull to get last rendered frame for the stream specified
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*/
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virtual int32_t
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GetLastRenderedFrame(const uint32_t streamId,
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I420VideoFrame &frame) const = 0;
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/**************************************************************************
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*
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* Start/Stop
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*
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***************************************************************************/
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/*
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* Starts rendering the specified stream
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*/
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virtual int32_t StartRender(const uint32_t streamId) = 0;
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/*
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* Stops the renderer
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*/
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virtual int32_t StopRender(const uint32_t streamId) = 0;
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/*
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* Resets the renderer
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* No streams are removed. The state should be as after AddStream was called.
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*/
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virtual int32_t ResetRender() = 0;
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/**************************************************************************
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*
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* Properties
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*
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***************************************************************************/
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/*
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* Returns the preferred render video type
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*/
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virtual RawVideoType PreferredVideoType() const = 0;
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/*
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* Returns true if the renderer is in fullscreen mode, otherwise false.
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*/
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virtual bool IsFullScreen() = 0;
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/*
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* Gets screen resolution in pixels
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*/
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virtual int32_t
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GetScreenResolution(uint32_t& screenWidth,
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uint32_t& screenHeight) const = 0;
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/*
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* Get the actual render rate for this stream. I.e rendered frame rate,
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* not frames delivered to the renderer.
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*/
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virtual uint32_t RenderFrameRate(const uint32_t streamId) = 0;
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/*
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* Set cropping of incoming stream
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*/
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virtual int32_t SetStreamCropping(const uint32_t streamId,
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const float left,
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const float top,
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const float right,
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const float bottom) = 0;
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/*
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* re-configure renderer
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*/
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// Set the expected time needed by the graphics card or external renderer,
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// i.e. frames will be released for rendering |delay_ms| before set render
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// time in the video frame.
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virtual int32_t SetExpectedRenderDelay(uint32_t stream_id,
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int32_t delay_ms) = 0;
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virtual int32_t ConfigureRenderer(const uint32_t streamId,
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const unsigned int zOrder,
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const float left,
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const float top,
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const float right,
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const float bottom) = 0;
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virtual int32_t SetTransparentBackground(const bool enable) = 0;
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virtual int32_t FullScreenRender(void* window, const bool enable) = 0;
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virtual int32_t SetBitmap(const void* bitMap,
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const uint8_t pictureId,
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const void* colorKey,
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const float left, const float top,
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const float right, const float bottom) = 0;
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virtual int32_t SetText(const uint8_t textId,
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const uint8_t* text,
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const int32_t textLength,
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const uint32_t textColorRef,
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const uint32_t backgroundColorRef,
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const float left, const float top,
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const float right, const float bottom) = 0;
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/*
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* Set a start image. The image is rendered before the first image has been delivered
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*/
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virtual int32_t
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SetStartImage(const uint32_t streamId,
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const I420VideoFrame& videoFrame) = 0;
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/*
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* Set a timout image. The image is rendered if no videoframe has been delivered
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*/
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virtual int32_t SetTimeoutImage(const uint32_t streamId,
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const I420VideoFrame& videoFrame,
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const uint32_t timeout)= 0;
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virtual int32_t MirrorRenderStream(const int renderId,
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const bool enable,
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const bool mirrorXAxis,
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const bool mirrorYAxis) = 0;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_RENDER_MAIN_INTERFACE_VIDEO_RENDER_H_
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