问题解决了,要拷贝一个字体文件到~./mplayer ,并且改名字为subfont.ttf,谢谢心情花园的解答!还是没有认真看readme,!顺便把官方 readme(有关字体安装的部分!)贴出来,供朋友们参考!
STEP5: Installing the onscreen display fonts
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Unpack the archive and choose one of the available font sizes. Then copy thefont files of the corresponding size into /usr/local/share/mplayer/font/ or~/.mplayer/font/ (or whatever you set with './configure --datadir=DIR').
Alternatively you can use a TrueType font installed on your system. Justmake a symbolic link from either
/usr/local/share/mplayer/subfont.ttf or~/.mplayer/subfont.ttf to your TrueType font.