IWMCodecLeakyBucket::SetBufferSizeBits Method
Sets the buffer size in bits.
Syntax
HRESULT SetBufferSizeBits(
[in] ULONG ulBufferSize
);
Parameters
- ulBufferSize [in]
The buffer size, in bits.
Return Value
This method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
| S_OK | The method succeeded. |
Remarks
This method is not implemented on the audio encoder objects. If you call this method from the IWMCodecLeakyBucket interface it returns E_NOTIMPL.
The buffer size is equal to the bit rate of the stream multiplied by the buffer window. For example, a stream with a bit rate of 28 kilobits per second with a buffer window of 3 seconds would have a buffer of 28000 bits per second x 3 seconds = 84000 bits.
This method is an alternative to setting the MFPKEY_VIDEOWINDOW property. Using this method does not alter the bit rate of the stream, but does alter the buffer window. Using the stream with a bit rate of 28000 bits per second from the previous example, setting the buffer size to 84000 using this method would have exactly the same effect as setting MFPKEY_VIDEOWINDOW to 3000 milliseconds (3 seconds).
Requirements
Minimum supported client |
Windows XP |
Minimum supported server |
Windows Server 2003 |
Header |
Wmcodecdsp.h |
See Also
IWMCodecLeakyBucket::GetBufferSizeBits
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Build date: 4/7/2010