ffmpeg使用nvidia硬件加速编译过程

下载 ffmpeg 源码包

下载地址:https://github.com/FFmpeg/FFmpeg 注意选择版本

wget https://github.com/FFmpeg/FFmpeg/archive/refs/heads/release/6.1.zip -O ffmpeg-6.1.zip

安装依赖

sudo apt install yasm libgmp-dev  libass-dev libx264-dev libx265-dev libdav1d-dev libsvtav1-dev libsvtav1enc-dev libwebp-dev libvpx-dev libfdk-aac-dev libplacebo-dev libvpl-dev libplacebo-dev libvpl 
sudo apt install autoconf automake  build-essential cmake git-core libass-dev  libfreetype6-dev libgnutls28-dev libmp3lame-dev libsdl2-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-shm0-dev libxcb-xfixes0-dev meson ninja-build pkg-config texinfo wget yasm zlib1g-dev nasm

解压源码包并配置

./configure --prefix=/opt/ffmpeg --target-os=linux  --disable-doc --disable-ffplay --disable-ptx-compression --disable-static --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto --enable-gpl --enable-version3 --enable-shared --enable-gmp --enable-gnutls  --enable-libdrm --enable-libass  --enable-libdav1d --enable-libsvtav1 --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfdk-aac --arch=amd64 --enable-libplacebo --enable-libvpl --enable-ffnvcodec --enable-cuda  --enable-cuvid --enable-nvdec --enable-nvenc --enable-nonfree

编译并安装

make -j
make install

后续工作

INFO

将 ffmpeg 可执行文件与动态库加入到环境变量中

cat >> ~/.bashrc <<"EOF"
function load_ffmpeg(){
    ff_home=/opt/ffmpeg
    export PATH=$ff_home/bin:$PATH
    export LD_LIBRARY_PATH=$ff_home/lib:$LD_LIBRARY_PATH
}
load_ffmpeg
EOF

重启shell并验证

$ ffmpeg -codecs | grep x264
ffmpeg version 6.1.2 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
  configuration: --prefix=/opt/bin --target-os=linux --disable-doc --disable-ffplay --disable-ptx-compression --disable-static --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto --enable-gpl --enable-version3 --enable-shared --enable-gmp --enable-gnutls --enable-libdrm --enable-libass --enable-libdav1d --enable-libsvtav1 --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfdk-aac --arch=amd64 --enable-libplacebo --enable-libvpl --enable-ffnvcodec --enable-cuda --enable-cuvid --enable-nvdec --enable-nvenc --enable-nonfree
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
 DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_v4l2m2m h264_qsv h264_cuvid) (encoders: libx264 libx264rgb h264_nvenc h264_qsv h264_v4l2m2m h264_vaapi)

简化使用ffmpeg的函数

#!/bin/bash
function ffpp(){
    fullname=$(basename "$1")
    newname=${fullname%.*}
    dirr=$(dirname "$1")
    ext=${fullname#*.}
    ext="mp4"
    optimizedoutput="$dirr"/optimized-"$newname".$ext
    if [[ -f "$optimizedoutput" ]]; then
        return 0
    fi

    ffmpeg  -hwaccel cuvid -i "$1" -c copy -movflags +faststart -brand iso6 "$optimizedoutput"
    # ffmpeg  -hwaccel cuvid -i "$1" -c:v copy -c:a copy -movflags +faststart -brand iso6  -y "$output"
    # ffmpeg -hwaccel cuvid -i "$1" -c:v h264_nvenc -preset fast -crf 18 -b:v 2M -maxrate 10M -bufsize 20M -c:a aac -b:a 192k "$output"

    if [ $? -eq 0 ]; then
	    echo infoo-"$1" >> ffpp.log
	else
		echo error-"$1" >> ffpp.log
    fi
    echo ""
    echo ""
    echo ""
}
function mvoptimizetoori(){
    fullname=$(basename "$1")
    newname=${fullname%.*}
    dirr=$(dirname "$1")
    ext=${fullname#*.}
    optimizedoutput="$dirr"/optimized-"$newname".$ext

    if [[ -f "$optimizedoutput" ]]; then
        orioutput="$dirr"/ori-"$newname".$ext
        mv "$1" "$orioutput" && mv "$optimizedoutput" "$1"
    fi
}

for file in movie/*/*.mp4; do
    fullname=$(basename "$file")
    if [[ "$fullname" == optimized* ]]; then
        continue
    fi
	ffpp "$file"
    mvoptimizetoori "$file"
done