如果我想输出到屏幕，该怎么定义输出呢？？？？
这个问题我已经苦恼很长时间了，楼住一定要帮个忙阿！！！
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你想把什么输出到屏幕?

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我想把媒体文件播放到屏幕，不过貌似用ffmpeg难以达成目的。我想把ffplay移植到嵌入式linux系统上，我改了一下configure文件，不过编译的时候还有一堆warning和几个error。错误信息：
ffplay.c:53:22: X11/Xlib.h: No such file or directory
ffplay.c: In function `main':
ffplay.c:2450: error: `Display' undeclared (first use in this function)
ffplay.c:2450: error: (Each undeclared identifier is reported only once
ffplay.c:2450: error: for each function it appears in.)
ffplay.c:2450: error: `dpy' undeclared (first use in this function)
ffplay.c:2451: warning: implicit declaration of function `XOpenDisplay'
ffplay.c:2453: warning: implicit declaration of function `DisplayWidth'
ffplay.c:2453: warning: implicit declaration of function `DefaultScreen'
ffplay.c:2454: warning: implicit declaration of function `DisplayHeight'
ffplay.c:2455: warning: implicit declaration of function `XCloseDisplay'
make: *** [ffplay.o] Error 1
能帮我么？？
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