Issue installing xbox-smartglass-nano

[openxbox]

Issue installing xbox-smartglass-nano

[tuxuser]

Couple of questions to narrow it down, please provide the following infos.

• Operating System used
• How was ffmpeg installed?
• Are ffmpeg development libraries installed (f.e. ffmpeg-dev on Ubuntu/Debian)

[uxm5jc]

• I'm running CentOS7.
• I installed from source from this site: https://ffmpeg.org/download.html then I extracted and went into that folder to run ./configure and make/make install.
  -I don't remember ever installing these, and thus used yum -y install ffmpeg-devel and faced many confliction errors with some packages already on the system. This is list is a bit long however(see the transaction check error at end of post) and I'm unsure if such a list of conflictions would mean its already installed or if I might have to remove these all manually in order to complete the installation.

Transaction check error:
  file /usr/lib64/libavutil.so.54 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil54-2.6.2-2.x86_64
  file /usr/lib64/libavcodec.so.56 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec56-2.6.2-2.x86_64
  file /usr/lib64/libavformat.so.56 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavformat56-2.6.2-2.x86_64
  file /usr/lib64/libswresample.so.1 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswresample1-2.6.2-2.x86_64
  file /usr/lib64/libpostproc.so.53.3.100 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libpostproc53-2.6.2-2.x86_64
  file /usr/lib64/libswscale.so.3.1.101 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswscale3-2.6.2-2.x86_64
  file /usr/lib64/libavfilter.so.5 from install of ffmpeg-libs-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavfilter5-2.6.2-2.x86_64
  file /usr/lib64/libavdevice.so.56.4.100 from install of libavdevice-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavdevice56-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/version.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/audio_fifo.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/avstring.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/avutil.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/blowfish.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/channel_layout.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/common.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/cpu.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/display.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/ffversion.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/fifo.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/frame.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/hmac.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/imgutils.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/log.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/opt.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/parseutils.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/pixfmt.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/rational.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/xtea.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/lib64/libavutil.so from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavutil.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/avcodec.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/dxva2.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/vaapi.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/vda.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/version.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/lib64/libavcodec.so from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavcodec.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavformat/version.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavformat/avformat.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavformat/avio.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/lib64/libavformat.so from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavformat.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswresample/version.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswresample/swresample.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/lib64/libswresample.so from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libswresample.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libpostproc/version.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libpostproc/postprocess.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libpostproc.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswscale/swscale.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswscale-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libswscale.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libswscale-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/version.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/avfilter.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/buffersrc.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/lib64/libavfilter.so from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavfilter.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavdevice/avdevice.h from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavdevice-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavdevice.pc from install of ffmpeg-devel-2.8.15-2.el7.nux.x86_64 conflicts with file from package libavdevice-devel-2.6.2-2.x86_64

[tuxuser]

The following version confuses me: ffmpeg-devel-2.8.15-2.. Shouldnt it be 3.2+ ?

[uxm5jc]

Yes, that is what I'm confused about too. I waited for a good minute in order to install it so I know its installed, and I installed directly from source as stated before. Is there just some way I can erase the older version so the most recent distro will function correctly?

[tuxuser]

Well, cleanest would be your distros package manager to uninstall old and install new version...

This seems to have at least v3.4.7

https://linuxize.com/post/how-to-install-ffmpeg-on-centos-7/

[uxm5jc]

Now im just getting the same transaction check error but with the updated version....
I followed all of the steps and this occured in the same place as before, when attempting to run the yum install ffmpeg ffmpeg-devel

Transaction check error:
  file /usr/include/ffmpeg/libavutil/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/adler32.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/attributes.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/audio_fifo.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/avassert.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/avconfig.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/avstring.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/avutil.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/base64.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/blowfish.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/buffer.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/cast5.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/channel_layout.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/common.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/cpu.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/crc.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/dict.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/display.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/eval.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/ffversion.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/fifo.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/file.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/frame.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/hash.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/hmac.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/imgutils.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/intreadwrite.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/lfg.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/log.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/macros.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/mathematics.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/md5.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/mem.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/motion_vector.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/murmur3.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/opt.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/parseutils.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/pixdesc.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/pixfmt.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/rational.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/replaygain.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/ripemd.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/samplefmt.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/sha.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/sha512.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/stereo3d.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/threadmessage.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/timecode.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/timestamp.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavutil/xtea.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/lib64/libavutil.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavutil.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavutil-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/avcodec.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/dv_profile.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/dxva2.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/qsv.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/vaapi.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/vda.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/vdpau.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/vorbis_parser.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavcodec/xvmc.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/lib64/libavcodec.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavcodec.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavcodec-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavformat/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavformat/avformat.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavformat/avio.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/lib64/libavformat.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavformat.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavformat-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswresample/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswresample/swresample.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/lib64/libswresample.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libswresample.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswresample-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libpostproc/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libpostproc/postprocess.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/lib64/libpostproc.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libpostproc.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libpostproc-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswscale/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswscale-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libswscale/swscale.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswscale-devel-2.6.2-2.x86_64
  file /usr/lib64/libswscale.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswscale-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libswscale.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libswscale-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/avfilter.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/buffersink.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavfilter/buffersrc.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/lib64/libavfilter.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavfilter.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavfilter-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavdevice/version.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavdevice-devel-2.6.2-2.x86_64
  file /usr/include/ffmpeg/libavdevice/avdevice.h from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavdevice-devel-2.6.2-2.x86_64
  file /usr/lib64/libavdevice.so from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavdevice-devel-2.6.2-2.x86_64
  file /usr/lib64/pkgconfig/libavdevice.pc from install of ffmpeg-devel-3.4.8-1.el7.x86_64 conflicts with file from package libavdevice-devel-2.6.2-2.x86_64

[tuxuser]

Uninstall libav, then install ffmpeg

[uxm5jc]

Having trouble with yum remove and with rpm -e commands(alongside searching for the files for both yum and rpm) and come up with no uninstallable file. When googling search phrases such as "uninstall libav centos" I find many pages for installing/uninstalling ffmpeg and one page on the uninstall of libav, but this thread was meant for Ubuntu. I'm assuming this is just an error in my ability to troubleshoot?

[tuxuser]

Yes I think so, cannot really help on that.
Essence: You want to get the "leftovers" cleanly uninstalled, whether it's called libav or ffmpeg on your system...

[uxm5jc]

ITS BEEN DONE. THE UNTHINKABLE HAS BEEN DONE. Thank you for your assistance and quickness in your replies, I really appreciate it man.