网站建设行业有什么认证吗,山西省建设银行网站,东莞知名网站,上海装修公司排名391ffmpeg-编译汇总 ubuntu18.04下编译ffmpeg 所有安装目录 /usr/local 1.nasm编译器编译 (nasm-2.13.03解包) ./configure --prefix/usr/local make -j4 sudo make install 注意#xff1a;能检测到可以不用设置下面的环境。 安装完成后#xff0c;为了系统能自动找到nasm程序/usr/local make -j4 sudo make install 注意能检测到可以不用设置下面的环境。 安装完成后为了系统能自动找到nasm程序我们需要配置下环境变量。步骤如下 输入命令sudo vim /etc/profile在文件末尾加入 export NASM_HOME/usr/local/nasm export PATH${NASM_HOME}/bin:$PATH export LD_LIBRARY_PATH${NASM_HOME}/bin:$LD_LIBRARY_PATH 2.SDL(SDL2-2.0.10解包) sudo apt-get install xorg-dev cmake直接编译(注意勾选静态编译 取消掉动态库) make -j4 sudo make install 3.x264 -fPIC git clone https://code.videolan.org/videolan/x264.git ./configure --prefix/usr/local --enable-pic --enable-strip --enable-static --disable-shared make -j4 sudo make install 4.x265 git clone https://bitbucket.org/multicoreware/x265_git.git cmake直接编译(注意勾选静态编译) make -j4 sudo make install 5.ffmpeg编译 (先确定安装好apt-get install libasound2-dev libpulse-dev) 生成库 make -j4 sudo make install FFmpeg编译后产生的FFmpeg和FFmpeg_g有什么区别 _g一般是里面带了debug信息方便调试的(比如单步调试) //下面是关闭asm编译的 ./configure --enable-static --disable-shared --disable-yasm --disable-x86asm --enable-libx264 --enable-libx265 --enable-sdl2 --enable-gpl --prefix/usr/local/ //下面是打开多线程支持ubuntu通用 ./configure --enable-static --disable-shared --enable-libx264 --enable-libx265 --enable-sdl2 --enable-pthreads --enable-pic --enable-gpl --prefix/usr/local/ //树莓派3b ./configure --enable-static --disable-shared --enable-libx264 --enable-libx265 --enable-sdl2 --enable-pthreads --enable-gpl --enable-mmal --enable-omx --enable-omx-rpi --enable-pic --extra-ldflags-latomic --pkg-config-flagspkg-config --static --prefix/home/pi/dev/ffmpeg-4.4.1-dev/ ./configure --archarmel --target-oslinux --enable-static --disable-shared --enable-gpl --enable-libx264 --enable-sdl --enable-nonfree --enable-omx --enable-omx-rpi --enable-encoderh264_omx --enable-mmal --enable-hwaccelh264_mmal --enable-decoderh264_mmal //NVIDIA 1.下载并安装ffnvcodec git clone https://git.videolan.org/git/ffmpeg/nv-codec-headers.git cd nv-codec-headers sudo make install 2.下载最新的FFmpeg或libav源代码 git clone https//git.ffmpeg.org/ffmpeg.git[Libavhttps//github.com/libav/libav] 3.从NVIDIA网站下载并安装兼容的驱动程序并安装CUDA工具包CUDA工具包 4.ffmpeg命令 ./configure --enable-cuda-sdk --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags-I/usr/local/cuda/include --extra-ldflags-L/usr/local/cuda/lib64 5.测试FFmpeg请尝试以下示例命令行进行12转码 ffmpeg -y -hwaccel cuvid -c:v h264_cuvid -vsync 0 -i input.mp4 -vf scale_npp1920:1072 -vcodec h264_nvenc output0.264 -vf scale_npp1280:720 -vcodec h264_nvenc output1.264 //jetson-TX2(下载jetson-ffmpeg补丁) ./configure --enable-static --disable-shared --enable-nvmpi --enable-libx264 --enable-libx265 --enable-sdl2 --enable-pthreads --enable-gpl --enable-pic --prefix/usr/local/ MSYS2下编译 MSYS2静态/动态编译 ./configure --enable-static --disable-shared --disable-debug --enable-sdl2 --enable-gpl --enable-libx264 --enable-libx265 --enable-w32threads --disable-pthreads --enable-memory-poisoning --enable-version3 --disable-iconv --disable-bzlib --disable-zlib --disable-lzma --prefix/home/AGAN/ffmpeg-4.4.1-dev ./configure --enable-shared --disable-debug --enable-sdl2 --enable-gpl --enable-libx264 --enable-libx265 --enable-w32threads --disable-pthreads --enable-memory-poisoning --enable-version3 --disable-iconv --disable-bzlib --disable-zlib --disable-lzma --prefix/home/AGAN/ffmpeg-4.4.1-devdll msvc 32/64静态/动态编译 ./configure --toolchainmsvc --enable-static --disable-shared --disable-debug --enable-gpl --enable-sdl2 --enable-libx264 --enable-libx265 --enable-w32threads --prefix/home/AGAN/ffmpeg-4.4.1 ./configure --toolchainmsvc --enable-shared --disable-debug --enable-gpl --enable-sdl2 --enable-libx264 --enable-libx265 --enable-w32threads --prefix/home/AGAN/ffmpeg-4.4.1
