By Anton Polinger

Create professional-quality media functions and parts with Microsoft Media origin - and bring the subsequent new release of high-definition multimedia. With this hands-on ebook, you are going to how to construct functions to seize video and audio documents of other kinds, strategy media details, and movement it over the web. should you application with C++ and the part item version (COM), this publication is perfect - specially for builders trying to move their abilities from Microsoft DirectShow.

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Additional resources for Developing Microsoft Media Foundation Applications

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25 Building the Media Pipeline . . . . . . . . . . . . . . . . 43 N ow that we have covered some of the basic Microsoft Media Foundation (MF) concepts, let's look at the process of writing MF applications. In this chapter, you will create a simple video file player—a Windows application that accepts a media file and plays it back in a window. This file player demonstrates the core ideas of Media Foundation. With those fundamental concepts in hand, you will be able to build more advanced applications in later chapters.

Topology builders receive various hints about the topology from the application and then automatically discover which components need to be loaded to create a working pipeline. In other words, topology builders load and connect Media Foundation components in a specific order, so that each upstream component produces data in the right format for the downstream component. To give a topology builder the information it needs to build a working topology, an application provides it with a partial topology.

Some MF APIs rely on additional functionality that is only present in the MF objects that implement these interfaces. For example, if you are going to use the default media session, you should not implement your own IMFTopology object, but use the object returned by the MFCreateTopology() API. To demonstrate some of the concepts of Media Foundation, this chapter uses and analyzes a sample player provided with the downloadable code for this book. More Info For instructions on how to obtain and download the sample code, see the Introduction.

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