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IAMVideoCompression::get_WindowSize (Windows Embedded CE 6.0)

  • Article

1/6/2010

This method retrieves the number of frames over which the compressor will maintain the average data rate.

For example, assuming a data rate of 100K/sec and a frame rate of 10 frames per second, if the window size is 1, then every frame will be 10K or less. If the window size is 5, then every five consecutive frames will average 10K per frame, but individual frames may exceed this size.

The default window size is 1.

Syntax

HRESULT get_WindowSize(
  DWORDLONG* pWindowSize
);

Parameters

  • pWindowSize
    [out] Pointer to a DWORDLONG variable that receives the window size, expressed as a number of frames.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description

S_OK

Success.

E_NOTIMPL

Not implemented.

E_POINTER

NULL pointer argument.

Requirements

Windows Embedded CE Windows Embedded CE 6.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment

See Also

Reference

IAMVideoCompression Interface
IAMVideoCompression::put_WindowSize