Gaming Linux® From Scratch (System V Edition) - Version #b31d

Chapter 5. Wine

FFmpeg-7.1

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.

Package Information

Additional Downloads

FFmpeg Dependencies

Required

Pkgconf Personalties (for lib32)

Recommended

libaom-3.9.1, libass, fdk-aac-2.0.3, FreeType-2.13.3 - Pass 2, LAME-3.100, libvorbis-1.3.7, libvpx-1.15.0, Opus-1.5.2, x264-20240812, x265-4.1, and NASM-2.16.03

Recommended for desktop use

alsa-lib-1.2.13, libva-2.22.0, SDL2-2.30.11

Recommended for systems with Intel Video

libvdpau-1.5 and libvdpau-va-gl-0.4.2

Optional

Full list of optional dependencies are in the BLFS FFmpeg page.

Installation of FFmpeg

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

patch -Np1 -i ../ffmpeg-7.1-chromium_method-1.patch

Now fix an issue caused by the latest version of x265-4.1: 

sed -e 's/X265_BUILD >= 210/(&) \&\& (X265_BUILD < 213)/' \
    -i libavcodec/libx265.c

Next, if you have installed texinfo-7.2, apply a patch to ensure generation of documentation does not fail: 

patch -Np1 -i ../ffmpeg-7.1-texinfo_fix-1.patch

Install FFmpeg by running the following commands: 

./configure --prefix=/usr        \
            --enable-gpl         \
            --enable-version3    \
            --enable-nonfree     \
            --disable-static     \
            --enable-shared      \
            --disable-debug      \
            --enable-libaom      \
            --enable-libfdk-aac  \
            --enable-libfreetype \
            --enable-libmp3lame  \
            --enable-libopus     \
            --enable-libvorbis   \
            --enable-libvpx      \
            --enable-libx264     \
            --enable-libx265     \
            --enable-openssl     \
            --ignore-tests=enhanced-flv-av1 \
            --docdir=/usr/share/doc/ffmpeg-7.1 &&

make &&

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

Now, as the root user: 

make install &&

install -v -m755    tools/qt-faststart /usr/bin &&
install -v -m755 -d           /usr/share/doc/ffmpeg-7.1 &&
install -v -m644    doc/*.txt /usr/share/doc/ffmpeg-7.1

lib32 Installation of FFmpeg

First clean the directory: 

make distclean

Install lib32-FFmpeg by running the following commands: 

./configure --prefix=/usr                             \
            --libdir=/usr/lib32                       \
            --shlibdir=/usr/lib32                     \
            --cc="gcc -m32"                           \
            --pkg-config=i686-pc-linux-gnu-pkg-config \
            --enable-gpl                              \
            --enable-version3                         \
            --enable-nonfree                          \
            --disable-static                          \
            --enable-shared                           \
            --disable-debug                           \
            --enable-libfdk-aac                       \
            --enable-libfreetype                      \
            --enable-libmp3lame                       \
            --enable-libopus                          \
            --enable-libvorbis                        \
            --enable-libvpx                           \
            --enable-libx264                          \
            --enable-openssl                          \
            --ignore-tests=enhanced-flv-av1 &&

make

Now, as the root user: 

make DESTDIR=$PWD/DESTDIR install     &&
cp -vr DESTDIR/usr/lib32/* /usr/lib32 &&
rm -rf DESTDIR                        &&
ldconfig

Command Explanations

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

--enable-libfreetype: Enables Freetype support.

--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 audio and video decoding via libaom.

--enable-libdrm: Use this switch if libdrm-2.4.124 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-libmp3lame: Enables MP3 audio encoding via libmp3lame.

--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.

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-7.1, 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