IAMVideoCompression::OverrideFrameSize method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The OverrideFrameSize method overrides the frame size of a specified frame.
Syntax
HRESULT OverrideFrameSize(
[in] long FrameNumber,
[in] long Size
);
Parameters
[in] FrameNumber
Specifies the frame number. The first frame that the filter delivers is numbered zero.
[in] Size
Specifies the maximum size of the specified frame, in bytes.
Return value
Returns an HRESULT value. Possible values include the following.
| Return code | Description |
|---|---|
|
Success. |
|
Not implemented. |
Remarks
If the filter supports this method, the IAMVideoCompression::GetInfo method will return the CompressionCaps_CanCrunch flag in the pCapabilities parameter. However, this flag can also indicate that the filter supports setting the bit rate, so it does not guarantee that the OverrideFrameSize method is supported.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |