linux 编译ffmpeg 支持x264, x265

1. 前言

本教程涉及的ffmpeg, x264, x265

2. 环境依赖

2.1 删除系统中安装的ffmpeg等库

sudo apt-get --purge remove ffmpeg mplayer x264 x265

2.2 安装依赖库

sudo apt-get update
sudo apt-get -y --force-yes install autoconf automake build-essential libass-dev libfreetype6-dev libgpac-dev \
  libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-shm0-dev \
  libxcb-xfixes0-dev pkg-config texi2html zlib1g-dev

注: 服务器版本可忽略

libsdl1.2-dev libva-dev libvdpau-dev libxcb1-dev libxcb-shm0-dev libxcb-xfixes0-dev

2.3 下载源代码

(1) ffmpeg

git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg

(2) x264

<pre name="code" class="plain"><pre name="code" class="plain">git clone git://git.videolan.org/x264.git

(3) x265

hg clone https://bitbucket.org/multicoreware/x265

(4) yasm

yasm 是x86平台的一个汇编优化器, 能够加快ffmpeg x264的编译

wget http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz
tar xzvf yasm-1.3.0.tar.gz

3. 编译

3.1 配置编译输出目录

export FFMPEG_PATH="YOUR_PATH"
export PATH="$FFMPEG_PATH/bin:$PATH"

例如我输出目录为$HOME/ffmpeg_2.6.3/build_out

那么:

export FFMPEG_PATH="$HOME/ffmpeg_2.6.3/build_out"

3.1 yasm

cd yasm-1.3.0
./configure --prefix="$HOME/" 
make
make install

或者安装已有的库(yasm version ≥ 1.3.0)

sudo apt-get install yasm

3.2 x264

在配置ffmpeg config时需要加入--enable-gpl和--enable-libx264

cd x264*
./configure --prefix="$FFMPEG_PATH" --enable-shared --enable-static
make -j4
make install
make clean

或者安装已有的库(yasm version ≥ 1.3.0)

sudo apt-get install libx264-dev

3.3 x265

cd x265/build/linux
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$FFMPEG_PATH" -DENABLE_SHARED:bool=off ../../source
make -j4
make install
make clean
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3.4 aac

在配置ffmpeg config时需要加入--enable-libfdk_aac(如果开启--enable-gpl同时需要开启--enable-nonfree )

PKG_CONFIG_PATH="$FFMPEG_PATH/lib/pkgconfig" ./configure \
  --prefix="$FFMPEG_PATH" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$FFMPEG_PATH/include" \
  --extra-ldflags="-L$FFMPEG_PATH/lib" \
  --enable-gpl \
  --enable-libass \
  --enable-libfaac \
  --enable-libfreetype \
  --enable-libmp3lame \
  --enable-libtheora \
  --enable-libvorbis \
  --enable-libx264 \
  --enable-libx265 \
  --enable-nonfree \
  --enable-shared \
  --enable-postproc \
  --enable-x11grab \
  --enable-bzlib \
  --enable-libxvid \
  --enable-zlib \
  --disable-debug 

4. 将ffmpeg添加到环境变量

4.1 将ffmpeg添加到环境变量

vim ~/.bashrc

在最后添加

export FFMPEG_PATH="/home/guohe/workspace/ffmpeg_2.6.3/build_out"
export PATH="$FFMPEG_PATH/bin:$PATH"

4.2 添加链接库

编译完成之后调用 ffmpeg 会出现 error while loading shared libraries: xxx

解决这种问题有2中方法:

(1) 修改/etc/ld.so.conf

vim /etc/ld.so.conf

在最后添加

$FFMPEG_PATH/lib

然后执行

sudo ldconfig

(2) 修改LD_LIBRARY_PATH

vim ~/.bashrc

在最后添加

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$FFMPEG_PATH/ib