IWMCodecLeakyBucket::SetBufferSizeBits method (wmcodecdsp.h)

Sets the buffer size in bits.

Syntax

HRESULT SetBufferSizeBits(
  [in] ULONG ulBufferSize
);

Parameters

[in] ulBufferSize

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.

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

See also

IWMCodecLeakyBucket Interface

IWMCodecLeakyBucket::GetBufferSizeBits