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DirectShow介绍(1)
IntrodUCtion to DirectShow
DirectShow介绍 Microsoft® DirectShow® is an architecture for streaming media on the Microsoft Windows® platform. DirectShow provides for high-quality capture and playback of multimedia streams. It supports a wide variety of formats, including Advanced Streaming Format (ASF), Motion Picture EXPerts Group (MPEG), Audio-Video Interleaved (AVI), MPEG Audio Layer-3 (MP3), and WAV sound files. It supports capture from digital and analog devices based on the Windows Driver Model (WDM) or Video for Windows. DirectShow is integrated with other DirectX technologies. It automatically detects and uses video and audio acceleration hardware when available, but also supports systems without acceleration hardware.
微软DirectShow是微软Windows平台下的一个流媒体架构。DirectShow提供多媒体流高质量的捕捉与回放。它支持多种格式，包括高级流格式(ASF)、运动图像专家组(MPEG)、音视频交错(AVI)、MPEG音频层-3(MP3)与WAV声音文件。它支持从基于Windows Driver Model(WDM)或Video for Windows的数字设备与类似的设备上捕捉信息。DirectShow是与其它DirectX技术结合起来的。它自动检测视频与音频硬件加速，并当硬件加速可用时就使用它；但它也支持没有硬件加速的系统。 DirectShow simplifies media playback, format conversion, and capture tasks. At the same time, it provides Access to the underlying stream control architecture for applications that require custom solutions. You can also create your own DirectShow components to support new formats or custom effects.
DirectShow使媒体回放、格式转换与捕捉任务简单化了。同时，它提供给需要定制解决方案的应用程序有权使用根本的流控制架构。你也能够创建自己的DirectShow组件来支持新的格式或定制效果。 Examples of the types of C++ applications you can write with DirectShow include file players, TV and DVD players, video editing applications, file format converters, audio-video capture applications, encoders and decoders, digital signal processors, and more. In Visual Basic you can create basic playback applications only. This documentation set covers both C++ and Visual Basic topiCS. Audio-video playback based on managed code is supported through Managed DirectX 9.0 and is not part of DirectShow.
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