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IAMExtTransport::GetTransportVideoParameters

  • Artigo
 
Microsoft DirectShow 9.0

IAMExtTransport::GetTransportVideoParameters

The GetTransportVideoParameters retrieves video parameter settings for external transport.

This method is not implemented.

Syntax

  HRESULT GetTransportVideoParameters(
  long Param,
  long *pValue
);

Parameters

Param

[in]  Specifies the video parameter to retrieve. Must be one of the following values.

Value Description
ED_TRANSVIDEO_SET_OUTPUT Retrieves the output mode.
ED_TRANSVIDEO_SET_SOURCE Retrieves the input pin.

pValue

[out]  Specifies a pointer to a long integer to receive the video parameter. See Remarks for more information.

Return Values

When this method succeeds, it returns S_OK. Otherwise it returns an HRESULT error code.

Remarks

If Param equals ED_TRANSVIDEO_SET_OUTPUT, pValue receives one of the following constants.

Value Description
ED_E2E Input video is displayed on the device's output regardless of the transport mode.
ED_OFF Video output is disabled.
ED_PLAYBACK Video playing from media is displayed on the device's output.

If Param equals ED_TRANSVIDEO_SET_SOURCE, pValue receives the index of the input pin used for the video input. The pin index is zero-based.

DV Implementation

MSDV does not support this method. It returns E_NOTIMPL.

Requirements

Header: Declared in Strmif.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also