1 创建目录

在home目录下创建
ffmpeg_sources：用于下载源文件
ffmpeg_build： 存储编译后的库文件
bin：存储二进制文件（ffmpeg，ffplay，ffprobe，X264，X265等）
cd ~
mkdir ffmpeg_sources ffmpeg_build bin

2 安装依赖

更新
sudo apt-get update
安装需要的组件
sudo apt-get -y install \
 autoconf \
 automake \
 build-essential \
 cmake \
 git-core \
 libass-dev \
 libfreetype6-dev \
 libsdl2-dev \
 libtool \
 libva-dev \
 libvdpau-dev \
 libvorbis-dev \
 libxcb1-dev \
 libxcb-shm0-dev \
 libxcb-xfixes0-dev \
 pkg-config \
 texinfo \
 wget \
 zlib1g-dev

3 编译与安装

NASM

cd ~/ffmpeg_sources && \
wget https://www.nasm.us/pub/nasm/releasebuilds/2.14.02/nasm-2.14.02.tar.bz2 && \
tar xjvf nasm-2.14.02.tar.bz2 && \
cd nasm-2.14.02 && \
./autogen.sh && \
PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" && \
make && \
make install

Yasm

cd ~/ffmpeg_sources && \
wget -O yasm-1.3.0.tar.gz https://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz && \
tar xzvf yasm-1.3.0.tar.gz && \
cd yasm-1.3.0 && \
./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" && \
make && \
make install

libx264

cd ~/ffmpeg_sources && \
git -C x264 pull 2> /dev/null || git clone --depth 1 https://code.videolan.org/videolan/x264.git && \
cd x264 && \
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --enable-static --enable-pic && \
PATH="$HOME/bin:$PATH" make && \
make install

libx265

sudo apt-get install libnuma-dev && \
cd ~/ffmpeg_sources && \
git -C x265_git pull 2> /dev/null || git clone https://bitbucket.org/multicoreware/x265_git && \
cd x265_git/build/linux && \
PATH="$HOME/bin:$PATH" cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$HOME/ffmpeg_build" -DENABLE_SHARED=off ../../source && \
PATH="$HOME/bin:$PATH" make && \
make install

libvpx

cd ~/ffmpeg_sources && \
git -C libvpx pull 2> /dev/null || git clone --depth 1 https://chromium.googlesource.com/webm/libvpx.git && \
cd libvpx && \
PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --disable-examples --disable-unit-tests --enable-vp9-highbitdepth --as=yasm && \
PATH="$HOME/bin:$PATH" make && \
make install

libfdk-aac

cd ~/ffmpeg_sources && \
git -C fdk-aac pull 2> /dev/null || git clone --depth 1 https://github.com/mstorsjo/fdk-aac && \
cd fdk-aac && \
autoreconf -fiv && \
./configure --prefix="$HOME/ffmpeg_build" --disable-shared && \
make && \
make install

libmp3lame

cd ~/ffmpeg_sources && \
wget -O lame-3.100.tar.gz https://downloads.sourceforge.net/project/lame/lame/3.100/lame-3.100.tar.gz && \
tar xzvf lame-3.100.tar.gz && \
cd lame-3.100 && \
PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --disable-shared --enable-nasm && \
PATH="$HOME/bin:$PATH" make && \
make install

libopus

cd ~/ffmpeg_sources && \
git -C opus pull 2> /dev/null || git clone --depth 1 https://github.com/xiph/opus.git && \
cd opus && \
./autogen.sh && \
./configure --prefix="$HOME/ffmpeg_build" --disable-shared && \
make && \
make install

ffmpeg安装包并解压

cd ~/ffmpeg_sources && \
wget -O ffmpeg-snapshot.tar.bz2 https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
tar xjvf ffmpeg-snapshot.tar.bz2 && \
cd ffmpeg && \
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
  --prefix="$HOME/ffmpeg_build" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  --extra-libs="-lpthread -lm" \
  --bindir="$HOME/bin" \
  --enable-gpl \
  --enable-gnutls \
  --enable-libass \
  --enable-libfdk-aac \
  --enable-libfreetype \
  --enable-libmp3lame \
  --enable-libopus \
  --enable-libvorbis \
  --enable-libvpx \
  --enable-libx264 \
  --enable-libx265 \
  --enable-nonfree && \
PATH="$HOME/bin:$PATH" make && \
make install && \
hash -r

錯誤解決

如果編譯ffmpeg報錯：
ERROR: gnutls not found using pkg-config

链接: gnutls 安裝鏈接

wget http://download.savannah.gnu.org/releases/lzip/lzip-1.20.tar.gz
tar zxvf lzip-1.20.tar.gz
cd lzip-1.20
./configure
make
make install

官网：https://gmplib.org/
wget https://gmplib.org/download/gmp/gmp-6.1.2.tar.lz
lzip -d gmp-6.1.2.tar.lz
tar xvf gmp-6.1.2.tar
cd gmp-6.1.2
./configure
make
make install

wget https://ftp.gnu.org/gnu/nettle/nettle-3.4.tar.gz
tar zxvf nettle-3.4.tar.gz
cd nettle-3.4
./configure
make
make check #测试一下
make install

官网：https://www.gnutls.org/download.html
wget ftp://ftp.gnutls.org/gcrypt/gnutls/v3.5/gnutls-3.5.9.tar.xz
xz -d gnutls-3.5.9.tar.xz
tar xvf gnutls-3.5.9.tar
cd gnutls-3.5.9
PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig ./configure --with-included-libtasn1 --with-included-unistring --without-p11-kit
make
make install

環境變量配置

将 FFmpeg 添加至环境变量：
sudo vim ~/.bashrc
添加如下内容：export PATH=$PATH:FFmpeg安装路径/bin
保存文件（快捷键）：:wq

配置动态链接库

sudo vim /etc/profile
光标移动至文件末尾
添加如下内容：
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:FFmpeg 安装路径/lib

然後關閉終端重新打開
ffmpeg -version

4、安装qt-5.12.10

下载地址：https://download.qt.io/archive/qt/5.12/5.12.10/

添加環境變量

在/root/qt5.12/Tools/QtCreator/bin目錄下啓動qt

如果报错
ubuntu安装qt5 Could not load the Qt platform plugin “xcb” in “” even though it was found.
需要安装： sudo apt install --reinstall libxcb-xinerama0

5、QT使⽤FFmpeg

TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += \
        main.c

INCLUDEPATH += /root/ffmpeg_build/include

LIBS += /root/ffmpeg_build/lib/libavcodec.a \
/root/ffmpeg_build/lib/libavdevice.a \
/root/ffmpeg_build/lib/libavfilter.a \
/root/ffmpeg_build/lib/libavformat.a \
/root/ffmpeg_build/lib/libavutil.a \
/root/ffmpeg_build/lib/libswresample.a \
/root/ffmpeg_build/lib/libswscale.a \
/root/ffmpeg_build/lib/libSDL2.so

#include "libavutil/avutil.h"
int main() 
{ 
	printf("Hello FFMPEG, version is %s\n", av_version_info());
	return 0; 
}