- 博客(0)
- 资源 (4)
- 收藏
- 关注
RSS订阅Directshow_SDK_Notes.pdf
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
2011-11-02
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人