Zirconium Linux From Scratch - Version r12.4-45-systemd

Chapter 13. Preparing FFMpeg and Support Libraries

FFmpeg-8.0.1

Introduction to FFmpeg

FFmpeg is a solution to record, convert and stream audio and video. It is a very fast video and audio converter and it can also acquire from a live audio/video source. Designed to be intuitive, the command-line interface (ffmpeg) tries to figure out all the parameters, when possible. FFmpeg can also convert from any sample rate to any other, and resize video on the fly with a high quality polyphase filter. FFmpeg can use a Video4Linux compatible video source and any Open Sound System audio source.

This package is known to build and work properly using an LFS 12.4 platform.

Package Information

  • Download (HTTP): https://ffmpeg.org/releases/ffmpeg-8.0.1.tar.xz

  • Download SHA256 Sum: 05ee0b03119b45c0bdb4df654b96802e909e0a752f72e4fe3794f487229e5a41

  • Download MD5 sum: b4e86cef7b3333034977ae9df391896d

  • Download size: 83,777.7 KB

  • Estimated disk space required: 1,924,261.6 KB

  • Estimated build time: 9.55 SBU

Additional Downloads

FFmpeg Dependencies

Recommended

dav1d-1.5.2, libaom-3.13.1 (for chroma subsampling outside of YUV420) libass-0.17.4, fdk-aac-2.0.3, FreeType-2.14.1, LAME-3.100, the section called “libvorbis-1.3.7”, libvpx-1.15.2, Opus-1.5.2, SVT-AV1-3.1.2 (only supports YUV420), x264-20250815, x265-4.1, and NASM-3.01

Recommended for desktop use

alsa-lib-1.2.14, libva-2.22.0, and sdl2-compat-2.32.60

Recommended for systems with NVIDIA Video

libvdpau-1.5 and libvdpau-va-gl-0.4.2

Optional

Fontconfig-2.17.1, FriBidi-1.0.16, frei0r-2.5.0, libcdio-2.1.0 (to identify and play CDs), libdrm-2.4.129 (for “kmsgrab” input), libplacebo-7.351.0 (for hardware accelerated color spaces and HDR tonemapping), libwebp-1.6.0, GnuTLS-3.8.11, PulseAudio-17.0, the section called “Speex-1.2.1”, v4l-utils-1.32.0, Vulkan-Loader-1.4.328.1, XviD-1.3.7,

Installation of FFmpeg

First, apply a patch that adds an API necessary for some packages to build: 

patch -Np1 -i ../ffmpeg-8.0.1-chromium_method-1.patch

Prepare FFmpeg by running the following commands: 

./configure --prefix=/usr        \
            --enable-gpl         \
            --enable-version3    \
            --enable-nonfree     \
            --disable-static     \
            --enable-shared      \
            --disable-debug      \
            --enable-libaom      \
            --enable-libass      \
            --enable-libfdk-aac  \
            --enable-libfreetype \
            --enable-libmp3lame  \
            --enable-libopus     \
            --enable-libvorbis   \
            --enable-libvpx      \
            --enable-libx264     \
            --enable-libx265     \
            --enable-openssl     \
            --enable-libdav1d    \
            --enable-libsvtav1   \
            --enable-vulkan      \
            --enable-libxvid     \
            --enable-libwebp     \
            --enable-libplacebo  \
            --ignore-tests=enhanced-flv-av1,enhanced-flv-multitrack \
            --docdir=/usr/share/doc/ffmpeg-8.0.1

To Build the package, issue: 

make

gcc tools/qt-faststart.c -o tools/qt-faststart

The fate-suite tests include comparisons with installed files, and should not be run before the package is installed. Therefore, if you desire to run them, instructions are given further below.

Now Install the package, as the root user: 

make install

install -v -m755    tools/qt-faststart /usr/bin

install -v -m755 -d           /usr/share/doc/ffmpeg-8.0.1
install -v -m644    doc/*.txt /usr/share/doc/ffmpeg-8.0.1

To properly test the installation you must have rsync-3.4.1 installed and follow the instructions for the FFmpeg Automated Testing Environment (FATE). First, about 1 GB of sample files used to run FATE are downloaded with the command: 

make fate-rsync SAMPLES=fate-suite/

The fate-suite directory is created and the files are downloaded there. That command actually runs an rsync command to obtain the sample files. You may want to compress and keep this directory for testing again, for testing in another system, or for when a new version of ffmpeg is released. Then, unpack the sample files in the source directory, and run the make fate-rsync ... command above to sync with the upstream repository. The download size and time are drastically reduced by doing this. Estimated values in "Package Information" do not include the download SBU. Some samples may have been removed in newer versions, so in order to be sure local and server fate samples are identical when you use previously saved samples, run the following command: 

rsync -vrltLW  --delete --timeout=60 --contimeout=60 \
      rsync://fate-suite.ffmpeg.org/fate-suite/ fate-suite/

Next, execute FATE with the following commands (there are more than 5200 tests in the suite): 

make fate THREADS=N SAMPLES=fate-suite/ | tee ../fate.log

grep ^TEST ../fate.log | wc -l

where N is an integer, N ≤ number of cores in the system.

A successful run should return no errors or warnings, just a list of tests.

Command Explanations

find ... ;: Fixes permissions of documentation files and directories.

--enable-gpl: Enables the use of GPL code and permits support for postprocessing, swscale and many other features.

--enable-version3: Enables the use of (L)GPL version 3 code.

--enable-nonfree: Enables the use of nonfree code. Note that the resulting libraries and binaries will be unredistributable.

--disable-static: This switch prevents installation of static versions of the libraries.

--enable-shared: Enables building shared libraries, otherwise only static libraries are built and installed.

--disable-debug: Disables building debugging symbols into the programs and libraries.

--enable-libaom: Enables AV1 encoding and decoding via libaom.

--enable-libass: Enables ASS/SSA subtitle format rendering via libass.

--enable-libdav1d: Enables AV1 decoding via libdav1d.

--enable-libdrm: Use this switch if libdrm-2.4.129 is installed to build the “kmsgrab” input module which is useful for screen capturing or streaming.

--enable-libfdk-aac: Enables AAC audio encoding via libfdk-aac.

--enable-libfreetype: Enables Freetype support.

--enable-libmp3lame: Enables MP3 audio encoding via libmp3lame.

--enable-libsvtav1: Enables AV1 encoding via libSvtAv1Enc. It however only supports chroma subsampling of YUV420.

--enable-libvorbis --enable-libvpx: Enables WebM encoding via libvorbis and libvpx.

--enable-libx264: Enables high-quality H.264/MPEG-4 AVC encoding via libx264.

--enable-libx265: Enables high-quality H.265/HEVC encoding via libx265.

--enable-openssl: Enables HTTPS protocol for network streams.

--ignore-tests=...: Disables tests that fail to run on BLFS without the optional packages. Currently the AV1 test is disabled as it needs dav1d to do AV1 decoding on the CPU. The test might work if you have a GPU that can decode AV1, but this was not tested.

--enable-gnutls: Use this option instead of --enable-openssl, if you want to use GnuTLS instead of OpenSSL for HTTPS protocol.

--disable-doc: Disables building html documentation. This is only needed if "doxygen" is installed and you do not want to build the html documentation.

--enable-libpulse: Enables support for Pulseaudio for audio output.

--enable-libplacebo: Enables support for libpulse for hardware accelerated color spaces.

gcc tools/qt-faststart.c -o tools/qt-faststart: This builds the qt-faststart program which can modify QuickTime formatted movies (.mov or .mp4) so that the header information is located at the beginning of the file instead of the end. This allows the movie file to begin playing before the entire file has been downloaded.

[Note]

Note

Support for most of the dependency packages requires using options passed to the configure script. View the output from ./configure --help for complete information about enabling dependency packages.

Contents

Installed Programs: ffmpeg, ffplay, ffprobe, and qt-faststart
Installed Libraries: libavcodec.so, libavdevice.so, libavfilter.so, libavformat.so, libavutil.so, libpostproc.so, libswresample.so, and libswscale.so
Installed Directories: /usr/include/libav{codec,device,filter,format,util}, /usr/include/libpostproc, /usr/include/libsw{resample,scale}, /usr/share/doc/ffmpeg-8.0.1, and /usr/share/ffmpeg

Short Descriptions

ffmpeg

is a command-line tool to convert video files, network streams and input from a TV card to several video formats

ffplay

is a very simple and portable media player using the ffmpeg libraries and the SDL library

ffprobe

gathers information from multimedia streams and prints it in a human and machine-readable fashion

qt-faststart

moves the index file to the front of quicktime (mov/mp4) videos

libavcodec.so

is a library containing the FFmpeg codecs (both encoding and decoding)

libavdevice.so

is the FFmpeg device handling library

libavfilter.so

is a library of filters that can alter video or audio between the decoder and the encoder (or output)

libavformat.so

is a library containing the file formats handling (mux and demux code for several formats) used by ffplay as well as allowing the generation of audio or video streams

libavresample.so

is a library containing functions for resampling audio and video.

libavutil.so

is the FFmpeg utility library

libpostproc.so

is the FFmpeg post processing library

libswresample.so

is the FFmpeg audio rescaling library, it contains functions for converting audio sample formats

libswscale.so

is the FFmpeg image rescaling library