mplayer: error while loading shared libraries:libavcodec.so.53
问题： mplayer: error while loading shared libraries: libavcodec.so.53
问题分析：运行mplayer时不能出现如上的错误，原因时因为没有找到对应的动态库文件，mplayer播放的时候只有声音没有画面；
解决办法：
在终端运行:
which mplayer打印出：
/usr/bin/mplayer
再运行：
ldd /usr/bin/mplayer打印出：
linux-vdso.so.1 => (0x00007fff483ef000)
libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f8517ca6000)
libsmbclient.so.0 => /usr/lib/x86_64-linux-gnu/libsmbclient.so.0 (0x00007f851748f000)
libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f8517266000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f851704f000)
libjpeg.so.8 => /usr/lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007f8516dff000)
libgif.so.4 => /usr/lib/x86_64-linux-gnu/libgif.so.4 (0x00007f8516bf5000)
libasound.so.2 => /usr/lib/x86_64-linux-gnu/libasound.so.2 (0x00007f8516908000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8516704000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f85164e6000)
libbluray.so.1 => /usr/lib/x86_64-linux-gnu/libbluray.so.1 (0x00007f85162b7000)
libdvdread.so.4 => /usr/lib/libdvdread.so.4 (0x00007f8516092000)
libcdda_interface.so.0 => /usr/lib/x86_64-linux-gnu/libcdda_interface.so.0 (0x00007f8515e80000)
libcdda_paranoia.so.0 => /usr/lib/x86_64-linux-gnu/libcdda_paranoia.so.0 (0x00007f8515c77000)
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f85159da000)
libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f85157a3000)
libass.so.4 => /usr/lib/x86_64-linux-gnu/libass.so.4 (0x00007f851557f000)
libfribidi.so.0 => /usr/lib/libfribidi.so.0 (0x00007f8515369000)
libenca.so.0 => /usr/lib/libenca.so.0 (0x00007f8515135000)
libvorbis.so.0 => /usr/lib/x86_64-linux-gnu/libvorbis.so.0 (0x00007f8514f09000)
libogg.so.0 => /usr/lib/x86_64-linux-gnu/libogg.so.0 (0x00007f8514d02000)
libspeex.so.1 => /usr/lib/x86_64-linux-gnu/libspeex.so.1 (0x00007f8514ae8000)
libtheora.so.0 => /usr/lib/x86_64-linux-gnu/libtheora.so.0 (0x00007f851489c000)
libdca.so.0 => /usr/lib/libdca.so.0 (0x00007f8514673000)
libfaad.so.2 => /usr/lib/libfaad.so.2 (0x00007f8514430000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f8514130000)
libavutil.so.51 => /usr/lib/x86_64-linux-gnu/libavutil.so.51 (0x00007f8513f10000)
libavcodec.so.53 => /usr/lib/x86_64-linux-gnu/libavcodec.so.53 (0x00007f85130fd000)
libavformat.so.53 => /usr/lib/x86_64-linux-gnu/libavformat.so.53 (0x00007f8512dfd000)
libswscale.so.2 => /usr/lib/x86_64-linux-gnu/libswscale.so.2 (0x00007f8512bb7000)
libpostproc.so.52 => /usr/lib/x86_64-linux-gnu/libpostproc.so.52 (0x00007f851298f000)
libxvidcore.so.4 => /usr/lib/x86_64-linux-gnu/libxvidcore.so.4 (0x00007f8512658000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f851235c000)
libdvdnavmini.so.4 => /usr/lib/libdvdnavmini.so.4 (0x00007f8512141000)
libdirectfb-1.2.so.9 => /usr/lib/libdirectfb-1.2.so.9 (0x00007f8511ebc000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f8511cab000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f8511975000)
libXv.so.1 => /usr/lib/x86_64-linux-gnu/libXv.so.1 (0x00007f851176f000)
libvdpau.so.1 => /usr/lib/x86_64-linux-gnu/libvdpau.so.1 (0x00007f851156b000)
libXinerama.so.1 => /usr/lib/x86_64-linux-gnu/libXinerama.so.1 (0x00007f8511367000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f8511162000)
libXxf86dga.so.1 => /usr/lib/libXxf86dga.so.1 (0x00007f8510f5c000)
libaa.so.1 => /usr/lib/x86_64-linux-gnu/libaa.so.1 (0x00007f8510d3c000)
libcaca.so.0 => /usr/lib/x86_64-linux-gnu/libcaca.so.0 (0x00007f8510a71000)
libSDL-1.2.so.0 => /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 (0x00007f85107d7000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f8510576000)
libesd.so.0 => /usr/lib/x86_64-linux-gnu/libesd.so.0 (0x00007f851036b000)
libaudio.so.2 => /usr/lib/x86_64-linux-gnu/libaudio.so.2 (0x00007f8510153000)
libpulse.so.0 => /usr/lib/x86_64-linux-gnu/libpulse.so.0 (0x00007f850ff0a000)
libjack.so.0 => /usr/lib/x86_64-linux-gnu/libjack.so.0 (0x00007f850fcc6000)
liblirc_client.so.0 => /usr/lib/liblirc_client.so.0 (0x00007f850fabf000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f850f8a8000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f850f4ea000)
libtalloc.so.2 => /usr/lib/x86_64-linux-gnu/libtalloc.so.2 (0x00007f850f2de000)
libtdb.so.1 => /usr/lib/x86_64-linux-gnu/libtdb.so.1 (0x00007f850f0cc000)
libwbclient.so.0 => /usr/lib/x86_64-linux-gnu/libwbclient.so.0 (0x00007f850eebe000)
libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007f850ecb9000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f850ea9c000)
libnsl.so.1 => /lib/x86_64-linux-gnu/libnsl.so.1 (0x00007f850e882000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f850e67a000)
libgssapi_krb5.so.2 => /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007f850e43a000)
libkrb5.so.3 => /usr/lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007f850e16c000)
libk5crypto.so.3 => /usr/lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007f850df44000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007f850dd3f000)
libldap_r-2.4.so.2 => /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2 (0x00007f850daf0000)
liblber-2.4.so.2 => /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2 (0x00007f850d8e2000)
/lib64/ld-linux-x86-64.so.2 (0x00007f8517ef8000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f850d6b7000)
libvpx.so.1 => /usr/lib/x86_64-linux-gnu/libvpx.so.1 (0x00007f850d41b000)
libvorbisenc.so.2 => /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2 (0x00007f850cf4b000)
libtheoraenc.so.1 => /usr/lib/x86_64-linux-gnu/libtheoraenc.so.1 (0x00007f850cd0e000)
libtheoradec.so.1 => /usr/lib/x86_64-linux-gnu/libtheoradec.so.1 (0x00007f850caf3000)
libschroedinger-1.0.so.0 => /usr/lib/libschroedinger-1.0.so.0 (0x00007f850c83f000)
libgsm.so.1 => /usr/lib/libgsm.so.1 (0x00007f850c631000)
libva.so.1 => /usr/lib/x86_64-linux-gnu/libva.so.1 (0x00007f850c41b000)
libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f850c20a000)
libdirect-1.2.so.9 => /usr/lib/libdirect-1.2.so.9 (0x00007f850bff1000)
libfusion-1.2.so.9 => /usr/lib/libfusion-1.2.so.9 (0x00007f850bde6000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f850bbc8000)
libncurses.so.5 => /lib/x86_64-linux-gnu/libncurses.so.5 (0x00007f850b9a6000)
libslang.so.2 => /lib/x86_64-linux-gnu/libslang.so.2 (0x00007f850b635000)
libgpm.so.2 => /usr/lib/x86_64-linux-gnu/libgpm.so.2 (0x00007f850b42f000)
libncursesw.so.5 => /lib/x86_64-linux-gnu/libncursesw.so.5 (0x00007f850b201000)
libpulse-simple.so.0 => /usr/lib/x86_64-linux-gnu/libpulse-simple.so.0 (0x00007f850affd000)
libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f850add7000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f850abd3000)
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f850a9cd000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f850a7cb000)
libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f850a5b3000)
libxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 (0x00007f850a3ae000)
libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f850a1a3000)
libaudiofile.so.1 => /usr/lib/x86_64-linux-gnu/libaudiofile.so.1 (0x00007f8509f70000)
libXt.so.6 => /usr/lib/x86_64-linux-gnu/libXt.so.6 (0x00007f8509d0a000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f8509b07000)
libjson.so.0 => /usr/lib/x86_64-linux-gnu/libjson.so.0 (0x00007f85098fe000)
libpulsecommon-1.1.so => /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so (0x00007f85096a0000)
libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f850945c000)
libkrb5support.so.0 => /usr/lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007f8509253000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007f850904f000)
libsasl2.so.2 => /usr/lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007f8508e33000)
libgssapi.so.3 => /usr/lib/x86_64-linux-gnu/libgssapi.so.3 (0x00007f8508bf5000)
libgnutls.so.26 => /usr/lib/x86_64-linux-gnu/libgnutls.so.26 (0x00007f8508939000)
libgcrypt.so.11 => /lib/x86_64-linux-gnu/libgcrypt.so.11 (0x00007f85086b9000)
liborc-0.4.so.0 => /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0 (0x00007f8508434000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f850822d000)
libSM.so.6 => /usr/lib/x86_64-linux-gnu/libSM.so.6 (0x00007f8508025000)
libICE.so.6 => /usr/lib/x86_64-linux-gnu/libICE.so.6 (0x00007f8507e0a000)
libwrap.so.0 => /lib/x86_64-linux-gnu/libwrap.so.0 (0x00007f8507c01000)
libsndfile.so.1 => /usr/lib/x86_64-linux-gnu/libsndfile.so.1 (0x00007f850799b000)
libasyncns.so.0 => /usr/lib/x86_64-linux-gnu/libasyncns.so.0 (0x00007f8507794000)
libheimntlm.so.0 => /usr/lib/x86_64-linux-gnu/libheimntlm.so.0 (0x00007f850758d000)
libkrb5.so.26 => /usr/lib/x86_64-linux-gnu/libkrb5.so.26 (0x00007f8507306000)
libasn1.so.8 => /usr/lib/x86_64-linux-gnu/libasn1.so.8 (0x00007f8507066000)
libhcrypto.so.4 => /usr/lib/x86_64-linux-gnu/libhcrypto.so.4 (0x00007f8506e32000)
libroken.so.18 => /usr/lib/x86_64-linux-gnu/libroken.so.18 (0x00007f8506c1d000)
libtasn1.so.3 => /usr/lib/x86_64-linux-gnu/libtasn1.so.3 (0x00007f8506a0b000)
libp11-kit.so.0 => /usr/lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007f85067f9000)
libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f85065f5000)
libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f85063ef000)
libFLAC.so.8 => /usr/lib/x86_64-linux-gnu/libFLAC.so.8 (0x00007f85061a5000)
libwind.so.0 => /usr/lib/x86_64-linux-gnu/libwind.so.0 (0x00007f8505f7b000)
libheimbase.so.1 => /usr/lib/x86_64-linux-gnu/libheimbase.so.1 (0x00007f8505d6c000)
libhx509.so.5 => /usr/lib/x86_64-linux-gnu/libhx509.so.5 (0x00007f8505b22000)
libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007f850587e000)
libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f8505645000)发现其中有三个库没有找到（上面的命令是在我修复好之后执行的，所以并没有出现缺少动态库的情况）：
libavcodec.so.53 => not found
libavutil.so.51 => not found
libswscale.so.2 => not found
在终端运行下面的命令安装对应的动态库文件：
sudo apt-get install libavcodec53 libavutil51再次执行ldd命令就会发现没有缺少的动态库文件了，可以愉快的玩耍了！
补充：
当出现
libswscale.so.2 => not foundsudo apt-get install libswscale-extra-2
参考：http://blog.csdn.net/lwj103862095/article/details/8201668