IAMVideoCompression::get_Quality
A version of this page is also available for
4/8/2010
This method retrieves the current compression quality.
Syntax
HRESULT get_Quality(
double* pQuality
);
Parameters
- pQuality
[out] Pointer to a double variable that receives the relative compression quality. The quality is expressed as a value between 0.0 and 1.0, where 1.0 indicates the best quality and 0.0 indicates the worst quality. If the value is negative, the filter will use the default quality.
Return Value
Returns an HRESULT value.
Remarks
The exact meaning of the quality setting depends on the filter.
To determine if the filter supports this method, call the IAMVideoCompression::GetInfo method and check for the CompressionCaps_CanQuality flag (see CompressionCaps) in the pCapabilities parameter. The GetInfo method also returns the default quality.
Requirements
| Windows Embedded CE | Windows Embedded CE 6.0 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 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_Quality
IAMVideoCompression::GetInfo
CompressionCaps