windows-nt/Source/XPSP1/NT/multimedia/dshow/streams/simple/main.cpp

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2020-09-26 03:20:57 -05:00
// Copyright (c) 1997 Microsoft Corporation. All Rights Reserved.
#include <windows.h>
#include <stdio.h>
#include "ddraw.h"
#include "mmstream.h"
#include "amstream.h"
#include "ddstream.h"
#define RELEASE(x) if (x) (x)->Release();
#define CHECK_ERROR(x) \
if (FAILED(hr = (x))) { \
printf(#x " failed with HRESULT(0x%8.8X)\n", hr); \
goto Exit; \
}
HRESULT OpenMMStream(const char * pszFileName, IDirectDraw *pDD, IMultiMediaStream **ppMMStream)
{
*ppMMStream = NULL;
IAMMultiMediaStream *pAMStream;
HRESULT hr;
CHECK_ERROR(CoCreateInstance(CLSID_AMMultiMediaStream, NULL, CLSCTX_INPROC_SERVER,
IID_IAMMultiMediaStream, (void **)&pAMStream));
CHECK_ERROR(pAMStream->Initialize(STREAMTYPE_READ, 0, NULL));
CHECK_ERROR(pAMStream->AddMediaStream(pDD, &MSPID_PrimaryVideo, 0, NULL));
CHECK_ERROR(pAMStream->AddMediaStream(NULL, &MSPID_PrimaryAudio, AMMSF_ADDDEFAULTRENDERER, NULL));
WCHAR wPath[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, pszFileName, -1, wPath, sizeof(wPath)/sizeof(wPath[0]));
CHECK_ERROR(pAMStream->OpenFile(wPath, 0));
*ppMMStream = pAMStream;
pAMStream->AddRef();
Exit:
if (pAMStream == NULL) {
printf("Could not create a CLSID_MultiMediaStream object\n"
"Check you have run regsvr32 amstream.dll\n");
}
RELEASE(pAMStream);
return hr;
}
HRESULT RenderStreamToSurface(IDirectDraw *pDD, IDirectDrawSurface *pPrimary,
IMultiMediaStream *pMMStream)
{
HRESULT hr;
IMediaStream *pPrimaryVidStream = NULL;
IDirectDrawMediaStream *pDDStream = NULL;
IDirectDrawSurface *pSurface = NULL;
IDirectDrawStreamSample *pSample = NULL;
RECT rect;
CHECK_ERROR(pMMStream->GetMediaStream(MSPID_PrimaryVideo, &pPrimaryVidStream));
CHECK_ERROR(pPrimaryVidStream->QueryInterface(IID_IDirectDrawMediaStream, (void **)&pDDStream));
CHECK_ERROR(pDDStream->CreateSample(NULL, NULL, 0, &pSample));
CHECK_ERROR(pSample->GetSurface(&pSurface, &rect));
CHECK_ERROR(pMMStream->SetState(STREAMSTATE_RUN));
while (true) {
if (pSample->Update(0, NULL, NULL, 0) != S_OK) {
break;
}
pPrimary->Blt(&rect, pSurface, &rect, DDBLT_WAIT, NULL);
}
Exit:
RELEASE(pPrimaryVidStream);
RELEASE(pDDStream);
RELEASE(pSample);
RELEASE(pSurface);
return hr;
}
int _CRTAPI1
main(
int argc,
char *argv[]
)
{
if (argc < 2) {
printf("Usage : simple movie.ext\n");
exit(0);
}
CoInitialize(NULL);
IDirectDraw *pDD;
HRESULT hr = DirectDrawCreate(NULL, &pDD, NULL);
if (SUCCEEDED(hr)) {
DDSURFACEDESC ddsd;
IDirectDrawSurface *pPrimarySurface;
pDD->SetCooperativeLevel(GetDesktopWindow(), DDSCL_NORMAL);
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
hr = pDD->CreateSurface(&ddsd, &pPrimarySurface, NULL);
if (SUCCEEDED(hr)) {
IMultiMediaStream *pMMStream;
hr = OpenMMStream(argv[1], pDD, &pMMStream);
if (SUCCEEDED(hr)) {
RenderStreamToSurface(pDD, pPrimarySurface, pMMStream);
pMMStream->Release();
}
pPrimarySurface->Release();
}
pDD->Release();
} else {
printf("Could not open DirectDraw - check it is installed\n");
}
CoUninitialize();
return 0;
}