IAMAnalogVideoDecoder::get_VCRHorizontalLocking 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 get_VCRHorizontalLocking method indicates whether the decoder is expecting video from a tape source or a broadcast source.

Syntax

HRESULT get_VCRHorizontalLocking(
  [out] long *plVCRHorizontalLocking
);

Parameters

[out] plVCRHorizontalLocking

Pointer to a variable that receives one of the following values.

Return value

Returns an HRESULT value. Possible values include the following.

Remarks

The timing accuracy of synchronization pulses is typically poorer from a tape source than from a broadcast source. If the returned value is 1, the decoder might relax its sync timing standards.

Requirements

See also

Error and Success Codes

IAMAnalogVideoDecoder Interface