subject_25366.htm

一些关于vc的问答

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序号：25366 发表者：all in the world 发表日期：2002-12-21 11:30:05
<br>主题：类型 MPEG2VIDEOINFO 什么老找不到啊?
<br>内容：我在例子 NullIp插入如下代码<BR>.....<BR>if(pMediaType-&gt;formattype== FORMAT_MPEG2Video )<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;MPEG2VIDEOINFO *pInfo = reinterpret_cast&lt;MPEG2VIDEOINFO *&gt;(pMediaType-&gt;pbFormat);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DbgOutString("\n");<BR>}<BR><BR>...<BR>编译的时候,就会出现如下错误.<BR>C:\DXSDK\samples\Multimedia\DirectShow\filters\nullip\nullprop.cpp(318) : error C2065: 'MPEG2VIDEOINFO' : undeclared identifier<BR>C:\DXSDK\samples\Multimedia\DirectShow\filters\nullip\nullprop.cpp(318) : error C2065: 'pInfo' : undeclared identifier<BR>C:\DXSDK\samples\Multimedia\DirectShow\filters\nullip\nullprop.cpp(318) : error C2061: syntax error : identifier 'MPEG2VIDEOINFO'<BR>Error executing cl.exe.<BR><BR>nullip.ax - 3 error(s), 0 warning(s)<BR><BR>难道 MPEG2VIDEOINFO 不是标准的定义么?<BR>
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<font color=red>答案被接受</font><br>回复者：莫鸿飞 回复日期：2002-12-29 16:23:13
<br>内容：add:<BR>#include "dvdmedia.h"
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