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用FFplay播放视频时报错

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1.报错信息

Could not initialize SDL - dsp: No such audio device
(Did you set the DISPLAY variable?)

2.解决方法

确保已安装 libasound2-dev 和 libpulse-dev，未安装则进行安装

sudo apt-get install libasound2-dev libpulse-dev

重新编译 SDL后，在运行ffplay.