[FFmpeg-user] Error installing

[venky v]

Hi

I tried to install ffmpeg in my server using the tutorial -

https://trac.ffmpeg.org/wiki/CompilationGuide/Centos#FFmpeg

during installing ffmpeg
"

cd ~/ffmpeg_sources
git clone --depth 1 git://source.ffmpeg.org/ffmpeg
cd ffmpeg
PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig"
export PKG_CONFIG_PATH
./configure --prefix="$HOME/ffmpeg_build"
--extra-cflags="-I$HOME/ffmpeg_build/include"
--extra-ldflags="-L$HOME/ffmpeg_build/lib" --bindir="$HOME/bin"
--extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac
--enable-libmp3lame --enable-libopus --enable-libvorbis
--enable-libvpx --enable-libx264
make
make install
make distclean
hash -r
. ~/.bash_profile
 "

i get the following error

hash -r . ~/.bash_profileyasm/nasm not found or too old. Use
--disable-yasm for a crippled build.

I hav also attached a screen shot of the same

thank you
VENKY
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