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Directshow_SDK_Notes.pdf
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上传时间: 2011-11-02
详细说明： Directshow_SDK_Notes.pdf directshow directx show sdk 学习文档 目 录 绪言.............................................................................................................................................................6 1 ABOUT DIRECTSHOW 基础..............................................................................................................7 1.1 设置DSHOW的开发环境.................................................................................................................7 1.2 先演示一下DSHOW 使用的一个例子......................... ....................................................................8 1.3 DIRECSHOW概述...............................................................................................................................8 1.4 FILTER GRAPH 及其组成...................................................................................................................8 1.5 构建一个FILTER GRAPH 图............................................................................................................15 1.6 数据流在FILTER GRAPH 里的流动（DATA FLOW） .....................................................................15 1.7 事件通知机制（EVENT NOTIFICATION）.......................................................................................19 1.8DIRECTSHOW中的时钟（TIME AND CLOCKS IN DSHOW）.............................................................21 1.9 动态删除或增加FILTER（DYNAMIC GRAPH BUILDING）.............................................................23 1.10 PLUG-IN DISTRIBUTORS .................................................................................................................25 2 DIRECTSHOW 的应用（USING DIRECTSHOW）......................................................................25 2.1 在GRAPHEDIT 中模拟构建GRAPH（SIMULATING GRAPH BUILDING） .......................................25 2.2DIRECTSHOW基本应用（BASIC TASKS）.......................................................................................33 2.2.1 视频提交（Video Rendering） ...............................................................................................33 2.2.2 如何处理事件通知（Event Notification） ............................................................................36 2.2.3 如何枚举系统的设备和过虑器..............................................................................................37 2.2.4 如何枚举Graph 图中的对象（filter，pin） .........................................................................41 2.2.5 构建Graph 图常用技术.........................................................................................................43 2.2.5.1 如何根据CLSID 向graph 中添加filter..............................................................................43 2.2.5.2 如何查找filter 空闲的pin。...............................................................................................44 2.2.5.3 如何连接两个Filter.............................................................................................................45 2.2.5.4 如何获得filter 或者pin 的接口指针..................................................................................47 2.2.5.5 如何查找和某个filter 的上下相连的filter.........................................................................49 2.2.5.6 如何删除graph 中的所有filter...........................................................................................52 2.2.5.7 如何利用Capture Graph Builder 构建Graph 图表...........................................................53 2.2.6 Seeking Filter graph.................................................................................................................55 2.2.7 如何设置Graph 时钟（Setting Graph Clock） ....................................................................57 2.2.8 在Dshow 中如何调试.............................................................................................................58 2.3 音频的捕捉.....................................................................................................................................58 2.4 视频的捕捉（VIDEO CAPTURE）...................................................................................................59 2.4.1 关于视频捕捉（About Video Capture in Dshow）.................................................................59 2.4.2 选择一个视频捕捉设备（Select capture device） ................................................................63 2.4.3 预览视频（Previewing Video） ..............................................................................................65 2.4.4 如何捕捉视频流并保存到文件（Capture video to File） ....................................................65 2.4.5 如何控制Capture Graph（Controlling Capture Graph） .....................................................69 2.4.6 视频捕捉的任务（Video Capture Tasks） .............................................................................71 2.4.6.1 如何配置一个视频捕捉设备...............................................................................................71 2.4.6.2Working With Crossbars .........................................................................................................74 DirectShow SDK 学习笔记作者：智慧的鱼 中华视频网整理 - 3 - 2.4.6.3 将设备从系统中移走时的事件通知（Device remove Notify） .........................................74 2.4.6.4 从静止图像pin 中捕捉图片................................................................................................75 2.4.7 数字视频DV（Digital Video in Direcshow） ........................................................................78 2.4.7.1 关于Directshow 中的DV 应用...........................................................................................78 2.4.7.2 如何将DV 捕捉到一个文件中............................................................................................78 2.4.7.3 如何将文件中的DV 读入到盘中........................................................................................78 2.4.7.4 DVINFO Field Settings in the MSDV Driver ........................................................................78 2.4.8 如何控制DV 便携式摄像机（Controlling a DV Camcorder） ...........................................78 2.4.9 模拟电视的视频捕捉（Analog Television）..........................................................................78 2.4.10 视频捕捉的高级话题............................................................................................................78 2.4.10.1 处理视频重画事件.............................................................................................................78 2.4.10.2 如何确定pin 的种类（Pin Categories） ..........................................................................79 2.4.10.3 如何使用一个SmartTee Filer ............................................................................................81 2.4.10.4 如何使用一个重叠混合器（Overlay Mixer in Video Capture） ......................................81 2.4.10.5Video Port Pins.....................................................................................................................81 2.4.10.6VideoInfo2 Format Type .......................................................................................................81 2.4.10.7 手动添加WDM类驱动filter.............................................................................................81 2.4.10.8 如何创建内核filter ............................................................................................................83 2.5DIRECTSHOW EDITING SERVICES ......................................................................................................85 2.6DVD 应用（DVDAPPLICATION） ..................................................................................................85 2.7MPEP_2 支持..................................................................................................................................85 2.8WINDOWS MEDIA 应用.....................................................................................................................85 2.9 TV 应用...........................................................................................................................................85 2.10 使用视频混合RENDER.................................................................................................................86 2.11 USING THE STREAM BUFFER ENGINE .............................................................................................86 2.12 开发自己的FILTER.......................................................................................................................86 1 如何开发自己的filter ..................................................................................................................86 2filter 的连接....................................................................................................................................95 3filter 间的数据流动........................................................................................................................98 4pin 连接时数据格式的动态改变.................................................................................................101 4 Threads and Critical Sections ......................................................................................................101 5 质量控制管理..............................................................................................................................107 6dshow 和com................................................................................................................................107 7 如何写Transform Filter ..............................................................................................................120 8 如何写视频播放过滤器Video Renderer Filter ..........................................................................131 9 如何写捕捉filter（源） .............................................................................................................137 10 创建filter 属性页.....................................................................................................................141 11 capture and compression formats ...............................................................................................148 12Graph 如何定位filter 的位置并加载........................................................................................150 2.13 ENCODER AND DECODER 开发.....................................................................................................150 3DIRECTSHOW 的基类学习..............................................................................................................150 3.1 DSHOW的基类简介......................................................................................................................150 3.2 FILTER 和PIN 的基类....................................................................................................................153 3.2.1CBaseFilter .............................................................................................................................153 DirectShow SDK 学习笔记作者：智慧的鱼 中华视频网整理 - 4 - 3.2.2CBasePin.................................................................................................................................159 3.2.3CBaseInputPin ........................................................................................................................168 3.2.4CBaseOutputPin......................................................................................................................172 3.3 几种常用FILTER 的基类..............................................................................................................176 3.3.1CSource ...................................................................................................................................176 3.3.2CSourceStream........................................................................................................................178 3.3.3CTransformFilter ....................................................................................................................182 3.3.4CTransformInputPin................................................................................................................188 3.3.5CTransformOutputPin.............................................................................................................189 3.3.6CTransInPlaceFilter................................................................................................................191 3.3.7 CTransInPlaceInputPin..........................................................................................................193 3.3.8CTransInPlaceOutputPin........................................................................................................193 3.3.4CVideoTransformFilter ...........................................................................................................193 3.3.9CBaseRenderer........................................................................................................................194 3.3.10CRendererInputPin ...............................................................................................................205 3.3.11CBaseVideoRenderer .............................................................................................................206 3.3.12 CBaseAllocator ....................................................................................................................210 3.3.13 CMediaSample .....................................................................................................................212 3.4FILTER 和PIN 经常用到的类.........................................................................................................214 3.4.1CPullPin..................................................................................................................................214 3.4.2COutputQueue.........................................................................................................................216 3.4.3CSourceSeeking.......................................................................................................................216 3.4.4CEnumPins..............................................................................................................................216 3.4.5CEnumMediaTypes..................................................................................................................216 3.4.6CMemAllocator .......................................................................................................................216 3.4.7CMediaSample ........................................................................................................................216 3.4.8CBaseReferenceClock .............................................................................................................219 3.4.9CMediaType ............................................................................................................................219 3.5 几个比较重要的类.......................................................................................................................219 4DIRECSHOW 提供的接口学习.........................................................................................................220 5DIRECTSHOW TUTORIALS...........................................................................................................220 5.1IMPLEMENTING A SEEK BAR............................................................................................................220 5.2DISPLAYING A FILTER'S PROPERTY PAGES .......................................................................................220 5.3GRABBING A POSTER FRAME...........................................................................................................220 5.4USING THE SAMPLE GRABBER ........................................................................................................220 5.5RECOMPRESSING AN AVI FILE.........................................................................................................220 6C++在电视开发中的应用....................................................................................................................220 6.1TV RATINGS REFERENCE ................................................................................................................220 6.2VIDEO CONTROL C++ REFERENCE..................................................................................................220 6.3MICROSOFT UNIFIED TUNING MODEL C++ REFERENCE .................................................................220 6.4TRANSPORT INFORMATION INTERFACES ..........................................................................................220 6.5BDAFILTER INTERFACES................................................................................................................220 DirectShow SDK 学习笔记作者：智慧的鱼 中华视频网整理 - 5 - 6.6MPEG-2 SECTIONS AND TABLES FILTER REFERENCE .....................................................................220 7DIRECSHOW 提供的FILTER .........................................................................................................220 ...展开收缩
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