環(huán)境

ubuntu16.04 cuda8.0 cudnn7 geforce gtx 1080 ti

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ffmpeg的硬編碼

nvidia

1. h264_nvenc
2. hevc_nvenc wrappers

硬解碼

1. cuvid
2. NVDEC

版本需要https://developer.nvidia.com/ffmpeg

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支持情況

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請參照 https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

編譯

1. 卸載x264 ffmpeg
   sudo apt-get -y remove ffmpeg x264 libx264-dev
2. 卸載之前編譯的x264

make uninstall  ##刪除由make install命令安裝的文件
make clean  ##只刪除make時(shí)產(chǎn)生的臨時(shí)文件
make distclean  ##同時(shí)刪除configure和make產(chǎn)生的臨時(shí)文件

官網(wǎng)上的步驟https://developer.nvidia.com/ffmpeg

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3. 安裝ffnvcodec

   
   
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   4.安裝nasm

tar -zxvf nasm-2.15.tar.gz
cd nasm-2.15
./configure -prefix=/storage/lss/ffmpegbuild/ # 自己的路徑
make
sudo make install 

5. 安裝libx264

cd x264
./configure --prefix=/storage/lss/ffmpegbuild/ --enable-static --enable-shared
make
sudo make install

6.安裝yasm

tar xzvf yasm-1.3.0.tar.gz
cd yasm-1.3.0
/configure --prefix=/storage/lss/ffmpegbuild
make
make install

7. 安裝x265
   https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu
   我沒有完全按照官網(wǎng)的命令

sudo apt-get install libnuma-dev 
git clone https://bitbucket.org/multicoreware/x265_git.git 
cd x265_git/build/linux
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/storage/lss/ffmpegbuild ../../source
make 
sudo make install

8. 安裝ffmpeg
   https://developer.nvidia.com/ffmpeg

git clone https://git.ffmpeg.org/ffmpeg.git
 ./configure --prefix=/storage/lss/ffmpegbuild/ --enable-libx264 
--enable-libx265 
--enable-cuda-sdk 
--enable-cuvid 
--enable-nvenc 
--enable-nonfree
 --enable-gpl 
--enable-libnpp 
--extra-cflags=-I/storage/lss/ffmpegbuild/include 
--extra-ldflags=-L/storage/lss/ffmpegbuild/lib  
--extra-cflags=-I/usr/local/cuda-8.0/include 
--extra-ldflags=-L/usr/local/cuda-8.0/lib64
# 報(bào)錯(cuò)1找不到x264或者npp
# 原因： x264或者cuda的路徑?jīng)]寫對
# 報(bào)錯(cuò)2ERROR: x265 not found using pkg-config
# 解決方法：在ffmpegbuild/lib/下面找到了一個(gè)pkgconfig，試著導(dǎo)入嗤详，成功解決
export PKG_CONFIG_PATH=/storage/lss/ffmpegbuild/lib/pkgconfig
# 警告 WARNING: Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead
#替換configure
./configure --prefix=/storage/lss/ffmpegbuild/ --enable-libx264 --enable-libx265 --enable-cuda-nvcc --enable-cuvid --enable-nvenc --enable-nonfree --enable-gpl --enable-libnpp  --extra-cflags=-I/storage/lss/ffmpegbuild/include --extra-ldflags=-L/storage/lss/ffmpegbuild/lib  --extra-cflags=-I/usr/local/cuda-8.0/include --extra-ldflags=-L/usr/local/cuda-8.0/lib64
make
# 報(bào)錯(cuò) Makefile:117: recipe for target 'ffmpeg_g' failed
# 解決方法：make clean一下
make clean
# 然后重新configure
#接著
make -j 4
sudo make install

由于本機(jī)上有一個(gè)ffmpeg个扰，需要把環(huán)境變量變成新編譯的這個(gè)，所以修改環(huán)境變量葱色，把路徑改成自己的/storage/lss/ffmpegbuild

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測試

1. 將MP4轉(zhuǎn)化為flv成功

ffmpeg -i orange.mp4 -c:v libx264 output.flv

2. 調(diào)用265成功

ffmpeg -i orange.mp4 -c:v libx265 -c:a copy output.mp4

2. 使用硬編碼

ffmpeg -i orange.mp4 -c:v h264_nvenc output.mp4
報(bào)錯(cuò)

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git checkout n3.4

重新編譯
編譯的過程中會報(bào)錯(cuò)英融，我搜了一下盏檐，有人說可能也是版本的問題，所以又換了一個(gè)版本 n3.4.3重新編譯 編譯成功

4. 使用新版本的ffmpeg調(diào)用硬編碼

ffmpeg -i orange.mp4 -c:v h264_nvenc output.mp4
成功,查看gpu調(diào)用情況驶悟，nvidia-smi,發(fā)現(xiàn)確實(shí)調(diào)用了gpu

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重新編譯ffmpeg使其支持ffplay

#安裝包
sudo apt-get install libsdl-image1.2-dev
sudo apt-get install libsdl-mixer1.2-dev
sudo apt-get install libsdl-ttf2.0-dev
sudo apt-get install libsdl-gfx1.2-dev

官網(wǎng)下載sdl
https://www.libsdl.org/download-2.0.php

解壓：tar -zxvf SDL2-2.0.12.tar.gz
cd SDL2-2.0.12
./configure --prefix=/storage/lss/ffmpegbuild
make
make install

配置ffmpeg

./configure --prefix=/storage/lss/ffmpegbuild/ --enable-libx264 --enable-libx265 --enable-cuda-sdk --enable-cuvid --enable-nvenc --enable-nonfree --enable-gpl --enable-libnpp  --extra-cflags=-I/storage/lss/ffmpegbuild/include --extra-ldflags=-L/storage/lss/ffmpegbuild/lib  --extra-cflags=-I/usr/local/cuda-8.0/include --extra-ldflags=-L/usr/local/cuda-8.0/lib64 --enable-sdl
make -j 4
sudo make install