Building ffmpeg with libx265 on CentOS 6

on 20 January 2015. Posted in Software

x265 refers to one of the latest open source video codec used for encoding videos. It is available as free software. The x265 encoder uses the latest x265 codec based on the HEVC High Efficiency Video Coding or H.265 standard. The main objective of H.265/x265 is to improve video quality by doubling the data compression ratio of the previous standard known as H.264/x264 encoding standard. Even if the actual browsers and mobile devices do not really support it yet, it's very interesting for our computers, or even to store videos on our personal clouds/NAS...

Better quality and conversion ratio than x264 ! Let's compile it with the ultimate Video and Audio manipulation tool !!

x265

cd /usr/local/src
hg clone http://hg.videolan.org/x265

cd /usr/local/src/x265/build/linux
./make-Makefiles.bash
make -j6
make install
ldconfig

Note that I used 'make -j6' because my CPU has 6 Cores/threads, adapt that line to your number of cores.

check

ls /usr/local/lib/libx265*
/usr/local/lib/libx265.a  /usr/local/lib/libx265.so@  /usr/local/lib/libx265.so.41*

FFMPEG

You can refer to Installing FFMPPEG, FLVTool2 and Yamdi on CentOS 6 if you want to install other codecs and tools.

cd /usr/local/src
mkdir /usr/local/src/tmp
chmod 777 /usr/local/src/tmp
export TMPDIR=/usr/local/src/tmp
wget https://www.ffmpeg.org/releases/ffmpeg-snapshot-git.tar.bz2

tar xjf ffmpeg-snapshot-git.tar.bz2
cd ffmpeg
make distclean
PKG_CONFIG_PATH="/usr/local/lib/pkgconfig" ./configure --disable-static --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libfaac --enable-libvpx --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libtheora --enable-libxvid --enable-libfdk_aac --enable-libopus
make clean && make && make install
make tools/qt-faststart
cp tools/qt-faststart /usr/local/bin/
ldconfig

check

ffmpeg
ffmpeg version N-69032-g3aaff80 Copyright (c) 2000-2015 the FFmpeg developers
  built on Jan 20 2015 07:48:35 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11)
  configuration: --disable-static --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libfaac --enable-libvpx --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libtheora
  libavutil      54. 16.100 / 54. 16.100
  libavcodec     56. 20.100 / 56. 20.100
  libavformat    56. 18.101 / 56. 18.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5.  7.100 /  5.  7.100
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Hyper fast Audio and Video encoder

Let's test our new toy !!

The original video 144MB

ffmpeg -y -i /path_to_my_directory/original.m2ts -strict experimental -acodec aac -ac 2 -ab 192k -vcodec libx264 -crf 18 -preset slower -f mp4 -threads 0 /path_to_my_directory/test-conversion/x264.mp4

ffmpeg -y -i /path_to_my_directory/test-conversion/original.m2ts -strict experimental -acodec aac -ac 2 -ab 192k -c:v libx265 -crf 23 -preset medium -f mp4 -threads 0 /path_to_my_directory/test-conversion/x265.mp4

x264 converted video 95MB x265 converted video 15MB

Tags: FFMPEG libx265 HEVC Software how to Centos 6 tutorial