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mdsplay.cpp
91 lines (75 loc) · 1.99 KB
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mdsplay.cpp
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/* 文字コードはSJIS 改行コードはCRLF */
/* $Id$ */
#include <windows.h>
#include <stdio.h>
#include <dshow.h>
#include <comdef.h>
_COM_SMARTPTR_TYPEDEF(IGraphBuilder, IID_IGraphBuilder);
_COM_SMARTPTR_TYPEDEF(IMediaControl, IID_IMediaControl);
_COM_SMARTPTR_TYPEDEF(IMediaEvent, IID_IMediaEvent);
void usage(void);
void PlayMedia(const char *filename) throw(_com_error);
void Message(bool error, const char *fmt, ...);
void usage(void)
{
Message(false,
"Minimal DirectShow Player 1.0.0\n"
"Copyright (c) 2013 UMEZAWA Takeshi\n\n"
"Licensed under GNU General Public License version 2 or later.\n");
exit(255);
}
#ifdef CONSOLE
int main(int, char **)
#else
int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
#endif
{
if (__argc != 2)
usage();
try
{
PlayMedia(__argv[1]);
return 0;
}
catch (_com_error e)
{
Message(true, "Cannot play media: %s\n", e.ErrorMessage());
return 1;
}
}
void PlayMedia(const char *pszFileName) throw(_com_error)
{
HRESULT hr;
IGraphBuilderPtr pGraphBuilder;
IMediaControlPtr pMediaControl;
IMediaEventPtr pMediaEvent;
WCHAR wszFileName[MAX_PATH];
LONG lEventCode;
CoInitializeEx(NULL, COINIT_MULTITHREADED);
pGraphBuilder.CreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC);
wsprintfW(wszFileName, L"%S", pszFileName);
hr = pGraphBuilder->RenderFile(wszFileName, NULL);
if (!SUCCEEDED(hr))
_com_raise_error(hr);
pMediaControl = pGraphBuilder;
pMediaEvent = pGraphBuilder;
hr = pMediaControl->Run();
if (!SUCCEEDED(hr))
_com_raise_error(hr);
hr = pMediaEvent->WaitForCompletion(INFINITE, &lEventCode);
if (!SUCCEEDED(hr))
_com_raise_error(hr);
}
void Message(bool error, const char *fmt, ...)
{
va_list args;
char buf[256];
va_start(args, fmt);
vsnprintf(buf, _countof(buf), fmt, args);
va_end(args);
#ifdef CONSOLE
fprintf(stderr, "%s", buf);
#else
MessageBox(NULL, buf, "Minimal DirectShow Player", error ? MB_ICONERROR : MB_OK);
#endif
}