Contact us for a compatible FFMpeg library

If you need the Orientation post processor feature, contact us at info@red5pro.com to help get you a compatible FFmpeg library.

Compiling FFMpeg

You can compile FFMpeg with OpenH264. To compile, you will need several tools installed on your system: make, g++, nasm, and pkg-config. To install the tools on Ubuntu run: apt-get install -y build-essential pkg-config nasm.

Once the tools are installed, proceed with compilation:

  • Get the FFMpeg source via git: git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg
  • Change directory to ffmpeg: cd ffmpeg
  • Make a build directory inside the ffmpeg directory: mkdir ffmpeg_build
  • Go back to the top-level: cd ..
  • Get the OpenH264 (Version 1.8) source code (download as zip)
  • Unzip openh264v1.8.zip into openh264 directory
  • Enter the openh264 directory: cd openh264
  • Modify the openh264/Makefile changing PREFIX to point at the full path to your ffmpeg/ffmpegbuild directory; Example: `PREFIX=/home/ubuntu/ffmpeg/ffmpegbuild`
  • Save the Makefile
  • Execute make install
  • Enter the ffmpeg directory, execute the build script below
# Red5 Pro FFMpeg build script for Transcoding


function build_ff
./configure \
    --disable-everything \
    --disable-doc --disable-ffplay --disable-ffprobe \
    --disable-avdevice \
    --disable-programs \
    --enable-ffmpeg \
    --enable-libopenh264 \
    --disable-indevs --disable-outdevs \
    --disable-swscale-alpha \
    --disable-symver --disable-iconv \
    --disable-bsfs --disable-videotoolbox \
    --disable-protocols \
    --enable-protocol=file \
    --enable-protocol=rtmp \
    --disable-decoders \
    --enable-decoder=aac \
    --enable-decoder=h264 \
    --enable-decoder=h263 \
    --enable-decoder=flv \
    --enable-decoder=nellymoser \
    --disable-encoders \
    --enable-encoder=aac \
    --enable-encoder=libopenh264 \
    --disable-filters \
    --enable-filter=aresample \
    --disable-parsers \
    --enable-parser=aac \
    --enable-parser=h264 \
    --disable-demuxers \
    --enable-demuxer=flv \
    --disable-muxers \
    --enable-muxer=flv \
    --enable-muxer=mp4 \
    --enable-pic --enable-asm --enable-x86asm \
    --enable-hardcoded-tables \
    --extra-cflags="-Os -fpic $ADDI_CFLAGS -I$(pwd)/ffmpeg_build/include" \
    --extra-ldflags="$ADDI_LDFLAGS -L$(pwd)/ffmpeg_build/lib -l:libopenh264.a" \
    --pkg-config-flags="--static" \
    --disable-debug --prefix=$(pwd)/ffmpeg_build

make && make install

Lastly, copy the ffmpeg executable from ffmpeg_build/bin to a known location which will be used in your conf/cloudstorage-plugin.properties file as the value for the ffmpeg.path entry. Note: the cloudstorage-plugin.properties file has GPL (x264) uncommented by default. If you are using OpenH264, then you need to uncomment the LGPL command template:

#ffmpeg.template=%s -y -report -async 1 -i %s -acodec aac -b:a 128k -ar 44100 -vcodec libopenh264 -pix_fmt yuv420p -profile:v baseline -level 3.0 %s

Build 8.2.0 and earlier

The FLV to MP4 Transcoder uses two native applications: FFMpeg and an h.264 encoder, either x264 or OpenH264.

Having FFmpeg with h.264 support as a dependency carries licensing information along with its use / deployment. There are two primary licenses we are concerned with herein, GNU General Public License and GNU Lesser General Public License. GPL being the most restrictive of the two and requiring the implementer to meet their specific requirements (see the license and/or consult your lawyer).

Installing FFMpeg via apt-get

From How to Install FFmpeg 4.0.2 in Ubuntu 18.04/16.04 via PPA.

In order to use the new OrientationPostProcessor method, you must have at least version 4.0 of FFMpeg. If you have an older version of FFmpeg installed, remove that first:

sudo apt-get remove ffmpeg

Then, add the jonathonf ppa:

sudo add-apt-repository ppa:jonathonf/ffmpeg-4

And confirm the resulting message by pressing [enter].


sudo apt update && sudo apt upgrade

Now FFmpeg is available to be installed with apt:

sudo apt-get install ffmpeg