解决ffplay无图像无声音问题(X86_64)

错误信息:
1. could not initialize sdl - no available video device (did you set the display variable?)
2. SDL_OpenAudio (2 channels, 44100 Hz): No such audio device
    SDL_OpenAudio (1 channels, 44100 Hz): No such audio device
    No more combinations to try, audio open failed
    No codec could be found with id 61
    Failed to open file '/mnt/hgfs/ubuntuWorkSpace/5.mp3' or configure filtergraph
解决方案:
sudo apt-get install libx11-dev
sudo apt-get install xorg-dev
sudo apt-get install libasound2-dev libpulse-dev
进入SDL2.0的目录：
make distclean
../../configure --host=x86-64_unknown-linux-gnu --enable-video-x11 --enable-x11-shared --enable-video-x11-vm
make -j4
sudo make install
注意要执行一下：export DISPLAY=:0
在vmware下，-j8老是死机，从此不喜欢j8
在rk3399上：
sudo apt build-dep libsdl2
解决以下问题:
Using libsamplerate : NO
Using libudev       : YES    --安装前为NO
Using dbus          : YES    --安装前为NO
Using ime           : YES
Using ibus          : NO
Using fcitx         : YES      --安装前为NO