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CBaseVideoRenderer.SendQuality method

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SendQuality method sends a quality message to indicate what the supplier should do about quality.

Syntax

virtual HRESULT SendQuality(
   REFERENCE_TIME trLate,
   REFERENCE_TIME trRealStream
);

Parameters

trLate

Amount of time by which the frame is late.

trRealStream

Currentstream time.

Return value

Returns an HRESULT value.

Remarks

This member function sends a quality control message upstream to control quality management. The nature of the quality message (that is, whether to reduce or increase the number of samples) is determined in the quality management implementation in this derived class (see CBaseVideoRenderer::ShouldDrawSampleNow).

Requirements

Requirement Value
Header
Renbase.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBaseVideoRenderer Class