EC_QUALITY_CHANGE
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 graph is dropping samples, for quality control.
Parameters
-
lParam1
-
Zero.
-
lParam2
-
Zero.
Default Action
None.
Remarks
A filter sends this event if it drops samples in response to a quality control message. It sends the event only when it adjusts the quality level, not for each sample that it drops. For more information, see Quality-Control Management.
Requirements
| Requirement | Value |
|---|---|
| Header |
|