CBaseMediaFilter::m_pLock member

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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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Pointer to a critical section.

Syntax

CCritSec *m_pLock;

Remarks

The critical section is held during state transitions (CBaseMediaFilter::Run, CBaseMediaFilter::Pause, CBaseMediaFilter::Stop), when accessing the reference clock (CBaseMediaFilter::SetSyncSource, CBaseMediaFilter::GetSyncSource), and in the CBaseMediaFilter::IsActive method.

Requirements

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

See also

CBaseMediaFilter Class