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DirectShow Performance Tests (Windows Embedded CE 6.0)

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1/6/2010

The DirectShow Performance Tests measure the capabilities of a multimedia device. They can be used in developing a new multimedia device or in gauging the performance of a component, such as a codec, in an end-to-end playback environment. The DirectShow Performance Tests are geared primarily toward testing video performance, since this is typically a primary performance bottleneck for such a device. They also test for audio discontinuities.

To use the DirectShow Performance Tests, you must run the same media clip encoded in varying bitrates and resolutions. By using a single standardized media clip in various bitrates and resolutions, you will gain a more accurate assessment of your Windows Embedded CE-based device's performance. Your content should include both low-motion and high-motion video clips; the high-motion clips have more key frames and thus taxes the system more heavily. Running a range of such clips of low, medium, and high density will give you the best measurement of your device's performance. If you are not targeting a high performance or HD media device, you do not need to run the higher-resolution clips. The content range you choose to encode and test should reflect the expected media range of the Windows Embedded CE-based device being tested.

It is recommended that you use the following table as a starting point for encoding and bitrates.

160 x 120

320 x 240

640 x 480

720 x 480

1280 x 720

1920 x 1080

64k

X

128k

X

300k

X

X

600k

X

X

1200k

X

X

2400k

X

X

X

4800k

X

X

9600k

X

X

19200 k

X

X

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Other Resources

Multimedia Tests