IAMVideoAccelerator::DisplayFrame method

The DisplayFrame method causes the video renderer to display a decoded frame.

Syntax

HRESULT DisplayFrame(
  DWORD        dwFlipToIndex,
  IMediaSample *pMediaSample
);

Parameters

dwFlipToIndex

The surface index of the decoded frame to display.

pMediaSample

Pointer to the IMediaSample interface of a media sample. This sample does not contain a video frame, but is used to specify the time stamp and any sample flags. (For more information about sample flags, see AM_SAMPLE2_PROPERTIES.

Return value

Returns an HRESULT value that depends on the implementation of the interface. HRESULT can include one of the following standard constants, or other values not listed.

Return code Description
E_FAIL
Failure.
E_INVALIDARG
Argument is invalid.
E_NOTIMPL
Method is not supported.
E_POINTER
NULL pointer argument.
S_OK
Success.
VFW_E_INVALIDSUBTYPE
The decoder did not use a DXVA decoding type when it connected to the video renderer.
VFW_E_NOT_CONNECTED
The pins on the decoder and video renderer filters are not connected.

Remarks

If the filter's pins are not connected, the method returns VFW_E_NOT_CONNECTED.

The method blocks until the video renderer finishes displaying the video frame.

The video decoder calls this method after calling IAMVideoAccelerator::EndFrame for the surface whose index is given in dwFlipToIndex. The index value must match the value of AMVABeginFrameInfo.dwDestSurfaceIndex in a previous call to IAMVideoAccelerator::BeginFrame.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header videoacc.h
Library Strmiids.lib

See also

Error and Success Codes

How Decoders Use IAMVideoAccelerator

IAMVideoAccelerator Interface