IAMVideoAccelerator::DisplayFrame method (videoacc.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 DisplayFrame method causes the video renderer to display a decoded frame.
Syntax
HRESULT DisplayFrame(
[in] DWORD dwFlipToIndex,
[in] IMediaSample *pMediaSample
);
Parameters
[in] dwFlipToIndex
The surface index of the decoded frame to display.
[in] 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 |
|---|---|
|
Failure. |
|
Argument is invalid. |
|
Method is not supported. |
|
NULL pointer argument. |
|
Success. |
|
The decoder did not use a DXVA decoding type when it connected to the video renderer. |
|
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
| Requirement | Value |
|---|---|
| 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 |