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: server版本号可忽略
libsdl1.2-dev libva-dev libvdpau-dev libxcb1-dev libxcb-shm0-dev libxcb-xfixes0-dev

2.3 下载源码

(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[/code] 

(4) yasm
yasm 是x86平台的一个汇编优化器, 可以加快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 配置编译输出文件夹
export FFMPEG_PATH="YOUR_PATH"
export PATH="$FFMPEG_PATH/bin:$PATH"
比如我输出文件夹为$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时须要增加--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[b](yasm version ≥ 1.3.0)[/b]
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时须要增加--enable-libfdk_aac(假设开启--enable-gpl同一时候须要开启--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加入到环境变量
4.1 将ffmpeg加入到环境变量
vim ~/.bashrc
在最后加入

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

4.2 加入链接库

编译完毕之后调用 ffmpeg 会出现 error while loading shared libraries: xxx

解决这样的问题有2中方法:

(1) 改动/etc/ld.so.conf

vim /etc/ld.so.conf


在最后加入
$FFMPEG_PATH/lib


然后运行

sudo ldconfig


(2) 改动LD_LIBRARY_PATH

vim ~/.bashrc
在最后加入
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$FFMPEG_PATH/ib