| 发表于：2007-07-12 13:31:001楼 得分:50 |
#include <dshow.h>
#include <atlbase.h>
#include <stdio.h>
#pragma comment（ lib, "strmiids.lib " )
#pragma comment（ lib, "winmm.lib " )
igraphbuilder *pgb = null;
imediacontrol *pmc = null;
imediaeventex *pme = null;
ivideowindow *pvw = null;
ibasicaudio *pba = null;
ibasicvideo *pbv = null;
imediaseeking *pms = null;
imediaposition *pmp = null;
ivideoframestep *pfs = null;
hresult playmovieinwindow（ lpctstr szfilename )
{
uses_conversion;
wchar wfilename[max_path];
hresult hr = e_fail;
if（ !szfilename )
return e_pointer;
wcsncpy（ wfilename, t2w（（lptstr)szfilename), max_path - 1 );
wfilename[max_path - 1] = l '\0 ';
hr = cocreateinstance（ clsid_filtergraph, null, clsctx_inproc_server,
iid_igraphbuilder, （void **)&pgb );
if（ succeeded（hr) )
{
hr = pgb-> renderfile（ wfilename, null );
if（ failed（hr) )
{
safe_release（ pgb );
return e_fail;
}
pgb-> queryinterface（ iid_imediacontrol, （void **)&pmc );
pgb-> queryinterface（ iid_imediaeventex, （void **)&pme );
pgb-> queryinterface（ iid_imediaseeking, （void **)&pms );
pgb-> queryinterface（ iid_imediaposition, （void **)&pmp );
pgb-> queryinterface（ iid_ivideowindow, （void **)&pvw );
pgb-> queryinterface（ iid_ibasicaudio, （void **)&pba );
pgb-> queryinterface（ iid_ibasicvideo, （void **)&pbv );
pgb-> queryinterface（ iid_ivideoframestep, （void **)&pfs );
pme-> setnotifywindow（ （oahwnd)ghwnd, wm_graphnotify, 0 );
pvw-> put_messagedrain（ （oahwnd)ghwnd );
long lvisible;
if（ succeeded（ pvw-> get_visible（ &lvisible ) ) )
{
// video
pvw-> put_owner（ （oahwnd)ghwnd );
pvw-> put_windowstyle（ ws_child ¦ ws_clipsiblings ¦ ws_clipchildren );
}
pmc-> run（);
}
return hr;
}
上面可以实现directshow自动连接filter播放所有文件，如果要按照自己的连接来播放，就要看看filter的连接了,用下面接口函数:ibasefilter,ipin,ienumpins, igraphbuilder::connect等，注意要装directx sdk。 | | |
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