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IltmmAnalogVideoDecoder::put_VCRHorizontalLocking

#include "ltmm.h"

C Syntax	HRESULT IltmmAnalogVideoDecoder_put_VCRHorizontalLocking(pAnVidDec, pVal)
C++ Syntax	HRESULT IltmmAnalogVideoDecoder_put_VCRHorizontalLocking(newVal)

IltmmAnalogVideoDecoder *pAnVidDec;	pointer to an interface
VARIANT_BOOL newVal;	property value

Sets a value that indicates whether the video is a tape source or a broadcast source.

Parameter	Description
pAnVidDec	Pointer to an IltmmAnalogVideoDecoder interface.
newVal	Value that indicates the source of the video. Possible values are:
	Value	Meaning
	VARIANT_FALSE	The video is from a broadcast source.
	VARIANT_TRUE	The video is from a tape source.

Returns

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

Call IltmmAnalogVideoDecoder::get_VCRHorizontalLocking to retrieve the current video source type.

The timing accuracy of synchronization pulses is typically poorer from a tape source than from a broadcast source. Setting the value to VARIANT_TRUE tells the decoder to relax its standards, which provides a better chance of maintaining sync.

For more detailed information, refer to the Microsoft documentation for IAMAnalogVideoDecoder::put_VCRHorizontalLocking.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

Example

For a C example, refer to IltmmAnalogVideoDecoder::get_AvailableTVFormats Example for C.

For a C++ example, refer to IltmmAnalogVideoDecoder::get_AvailableTVFormats Example for C++.

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Elements:	IltmmAnalogVideoDecoder interface, IltmmAnalogVideoDecoder::get_VCRHorizontalLocking
Topics:	Multimedia Function Groups