6

ubuntu 18.04 ffmpeg cuvid硬解环境搭建

 3 years ago
source link: https://blog.csdn.net/oqqYuan1234567890/article/details/89609466
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.

由于最近要在视频流上Mask R-CNN模型，cuda硬解也要上，又要折腾一下环境搭建，在此记录一下。

这里的硬解说的是调用nvidia的video codec sdk来加速编解码，使用cuvid硬解的方式有两种，一种是调用ffmpeg已经嵌入的硬解方案，另外一种是先调用ffmpeg再调用codec sdk。
从开发难度来说，第一种要稍微简单一些，只需要指定ffmpeg的video codec就可以启用硬解。 下面是我搭建的一些记录

由于我的机器搭建了各种各样的开发环境，这次编译缺少的一个是yasm包，执行下面命令就可以安装。如果有缺少其它包，自行搜索一下应该可以解决。

 sudo apt-get install yasm

安装nv codec header

由于编译ffmpeg需要用到nv codec的一些header，在这里下载，由于我用的ffmpeg版本最新的master分支(commit: d6489d),所以nv_header也要用最新的9.0版本，下载地址是：
https://github.com/FFmpeg/nv-codec-headers/releases

下载之后，执行

sudo make install

就可以完成header的安装。如果要卸载， 可以执行sudo make uninstall命令

编译ffmpeg

从 https://git.ffmpeg.org/ffmpeg.git clone 一下ffmpeg的源码
然后配置一下

./configure --enable-cuda --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
sudo make -j6 
sudo make install

到这里基本就安装成功了，下面验证一下硬解是否生效

由于是硬解，所以要验证一下是否生效，我用本地的一个视频文件试了一下, 用time命令对比一下同一个转码任务，哪个时间更短
ffmpeg的命令参数比较多，可以自行搜索看一下：

ffmpeg -y -i jiaofu2.rmvb -t 200 -c:v h264_nvenc output2.mp4

  • -i 输入文件
  • -c:v 编解码器video codec， h264_nvenc表示使用nvidia的video codec
  • -t 目标时长
    如果不指定c:v, 就是用默认CPU软解
    使用硬解：
time ffmpeg -y -i jiaofu2.rmvb -t 200 -c:v h264_nvenc output2.mp4
ffmpeg version N-93679-gd6489ddb7a Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-27ubuntu1~18.04)
  configuration: --enable-cuda --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
  libavutil      56. 26.100 / 56. 26.100
  libavcodec     58. 52.100 / 58. 52.100
  libavformat    58. 27.103 / 58. 27.103
  libavdevice    58.  7.100 / 58.  7.100
  libavfilter     7. 50.100 /  7. 50.100
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
[rm @ 0x555690d38040] Invalid stream index 2 for index at pos 2438339235
Input #0, rm, from 'jiaofu2.rmvb':
  Metadata:
    title           : �̸�2.The.Godfather.Part.II.1974.720p.Bluray
    author          : ��Ӱ�ӵ۹�CNXP����С������ס�ഺ��
    copyright       : bbs.cnxp.com(C)2010
    ASMRuleBook     : #($Bandwidth >= 0),Stream0Bandwidth = 96468, Stream1Bandwidth = 1503532;
    Audiences       : Easy RealMedia Tool's Audience;
    audioMode       : music
    Creation Date   : 7/22/2010 17:52:32
    Description     : This File is Created by Easy RealMedia Tools@!
    Email           : [email protected]
    Generated By    : Easy RealMedia Tools V1.8x
    HomeWeb         : http://redcheek.net
    Keywords        : Ӱ�ӵ۹���Ʒ
    Modification Date: 7/22/2010 17:52:32
    videoMode       : sharp
  Duration: 03:22:08.25, start: 0.000000, bitrate: 1608 kb/s
    Stream #0:0: Audio: cook (cook / 0x6B6F6F63), 44100 Hz, stereo, fltp, 96 kb/s
    Stream #0:1: Video: rv40 (RV40 / 0x30345652), yuv420p, 1280x720, 1499 kb/s, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc
Stream mapping:
  Stream #0:1 -> #0:0 (rv40 (native) -> h264 (h264_nvenc))
  Stream #0:0 -> #0:1 (cook (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mp4, to 'output2.mp4':
  Metadata:
    title           : �̸�2.The.Godfather.Part.II.1974.720p.Bluray
    author          : ��Ӱ�ӵ۹�CNXP����С������ס�ഺ��
    copyright       : bbs.cnxp.com(C)2010
    ASMRuleBook     : #($Bandwidth >= 0),Stream0Bandwidth = 96468, Stream1Bandwidth = 1503532;
    Audiences       : Easy RealMedia Tool's Audience;
    audioMode       : music
    Creation Date   : 7/22/2010 17:52:32
    Description     : This File is Created by Easy RealMedia Tools@!
    Email           : [email protected]
    Generated By    : Easy RealMedia Tools V1.8x
    HomeWeb         : http://redcheek.net
    Keywords        : Ӱ�ӵ۹���Ʒ
    Modification Date: 7/22/2010 17:52:32
    videoMode       : sharp
    encoder         : Lavf58.27.103
    Stream #0:0: Video: h264 (h264_nvenc) (Main) (avc1 / 0x31637661), yuv420p(progressive), 1280x720, q=-1--1, 2000 kb/s, 23.98 fps, 785645.00 tbn, 23.98 tbc
    Metadata:
      encoder         : Lavc58.52.100 h264_nvenc
    Side data:
      cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: -1
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc58.52.100 aac
frame=  200 fps=0.0 q=15.0 size=    1280kB time=00:00:08.21 bitrate=1276.2kbits/frame=  426 fps=426 q=29.0 size=    5376kB time=00:00:17.64 bitrate=2496.3kbits/frame=  723 fps=481 q=15.0 size=    6912kB time=00:00:30.03 bitrate=1885.6kbits/frame= 1098 fps=548 q=16.0 size=    8192kB time=00:00:46.37 bitrate=1447.0kbits/frame= 1406 fps=562 q=15.0 size=   13312kB time=00:00:58.51 bitrate=1863.6kbits/frame= 1760 fps=586 q=17.0 size=   17152kB time=00:01:13.28 bitrate=1917.4kbits/frame= 2106 fps=601 q=15.0 size=   20736kB time=00:01:27.71 bitrate=1936.7kbits/frame= 2385 fps=596 q=18.0 size=   25856kB time=00:01:39.34 bitrate=2132.0kbits/frame= 2685 fps=596 q=22.0 size=   29696kB time=00:01:51.86 bitrate=2174.7kbits/frame= 2992 fps=598 q=20.0 size=   33536kB time=00:02:04.66 bitrate=2203.7kbits/frame= 3284 fps=597 q=19.0 size=   37120kB time=00:02:17.39 bitrate=2213.2kbits/frame= 3588 fps=598 q=23.0 size=   40704kB time=00:02:30.40 bitrate=2217.0kbits/frame= 3900 fps=600 q=22.0 size=   43520kB time=00:02:43.03 bitrate=2186.7kbits/frame= 4223 fps=603 q=19.0 size=   46848kB time=00:02:56.40 bitrate=2175.5kbits/frame= 4546 fps=606 q=22.0 size=   50688kB time=00:03:09.48 bitrate=2191.4kbits/frame= 4796 fps=606 q=21.0 Lsize=   53427kB time=00:03:20.00 bitrate=2188.3kbits/s dup=375 drop=0 speed=25.3x    
video:50217kB audio:3055kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.290995%
[aac @ 0x555690d6f4c0] Qavg: 10399.560

real	0m8.017s
user	0m36.849s
sys	0m0.702s

使用软解：


 time ffmpeg -y -i jiaofu2.rmvb -t 200  output2.mp4
ffmpeg version N-93679-gd6489ddb7a Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-27ubuntu1~18.04)
  configuration: --enable-cuda --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
  libavutil      56. 26.100 / 56. 26.100
  libavcodec     58. 52.100 / 58. 52.100
  libavformat    58. 27.103 / 58. 27.103
  libavdevice    58.  7.100 / 58.  7.100
  libavfilter     7. 50.100 /  7. 50.100
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
[rm @ 0x5556cfc4b000] Invalid stream index 2 for index at pos 2438339235
Input #0, rm, from 'jiaofu2.rmvb':
  Metadata:
    title           : �̸�2.The.Godfather.Part.II.1974.720p.Bluray
    author          : ��Ӱ�ӵ۹�CNXP����С������ס�ഺ��
    copyright       : bbs.cnxp.com(C)2010
    ASMRuleBook     : #($Bandwidth >= 0),Stream0Bandwidth = 96468, Stream1Bandwidth = 1503532;
    Audiences       : Easy RealMedia Tool's Audience;
    audioMode       : music
    Creation Date   : 7/22/2010 17:52:32
    Description     : This File is Created by Easy RealMedia Tools@!
    Email           : [email protected]
    Generated By    : Easy RealMedia Tools V1.8x
    HomeWeb         : http://redcheek.net
    Keywords        : Ӱ�ӵ۹���Ʒ
    Modification Date: 7/22/2010 17:52:32
    videoMode       : sharp
  Duration: 03:22:08.25, start: 0.000000, bitrate: 1608 kb/s
    Stream #0:0: Audio: cook (cook / 0x6B6F6F63), 44100 Hz, stereo, fltp, 96 kb/s
    Stream #0:1: Video: rv40 (RV40 / 0x30345652), yuv420p, 1280x720, 1499 kb/s, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc
Stream mapping:
  Stream #0:1 -> #0:0 (rv40 (native) -> mpeg4 (native))
  Stream #0:0 -> #0:1 (cook (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mp4, to 'output2.mp4':
  Metadata:
    title           : �̸�2.The.Godfather.Part.II.1974.720p.Bluray
    author          : ��Ӱ�ӵ۹�CNXP����С������ס�ഺ��
    copyright       : bbs.cnxp.com(C)2010
    ASMRuleBook     : #($Bandwidth >= 0),Stream0Bandwidth = 96468, Stream1Bandwidth = 1503532;
    Audiences       : Easy RealMedia Tool's Audience;
    audioMode       : music
    Creation Date   : 7/22/2010 17:52:32
    Description     : This File is Created by Easy RealMedia Tools@!
    Email           : [email protected]
    Generated By    : Easy RealMedia Tools V1.8x
    HomeWeb         : http://redcheek.net
    Keywords        : Ӱ�ӵ۹���Ʒ
    Modification Date: 7/22/2010 17:52:32
    videoMode       : sharp
    encoder         : Lavf58.27.103
    Stream #0:0: Video: mpeg4 (mp4v / 0x7634706D), yuv420p(progressive), 1280x720, q=2-31, 200 kb/s, 23.98 fps, 10981 tbn, 23.98 tbc
    Metadata:
      encoder         : Lavc58.52.100 mpeg4
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc58.52.100 aac
frame=  204 fps=0.0 q=31.0 size=     512kB time=00:00:08.46 bitrate= 495.4kbits/frame=  379 fps=379 q=31.0 size=    1536kB time=00:00:15.76 bitrate= 798.1kbits/frame=  554 fps=369 q=31.0 size=    2560kB time=00:00:23.55 bitrate= 890.3kbits/frame=  801 fps=400 q=31.0 size=    3072kB time=00:00:33.37 bitrate= 754.1kbits/frame= 1069 fps=427 q=24.8 size=    3584kB time=00:00:44.54 bitrate= 659.1kbits/frame= 1291 fps=430 q=31.0 size=    4352kB time=00:00:53.80 bitrate= 662.6kbits/frame= 1517 fps=433 q=31.0 size=    4864kB time=00:01:03.23 bitrate= 630.2kbits/frame= 1763 fps=440 q=31.0 size=    5376kB time=00:01:13.49 bitrate= 599.3kbits/frame= 1984 fps=440 q=31.0 size=    6144kB time=00:01:22.70 bitrate= 608.6kbits/frame= 2208 fps=441 q=31.0 size=    6912kB time=00:01:32.37 bitrate= 612.9kbits/frame= 2430 fps=441 q=31.0 size=    7680kB time=00:01:41.30 bitrate= 621.0kbits/frame= 2652 fps=441 q=31.0 size=    8448kB time=00:01:50.56 bitrate= 625.9kbits/frame= 2877 fps=442 q=31.0 size=    9216kB time=00:01:59.95 bitrate= 629.4kbits/frame= 3099 fps=442 q=24.8 size=   10240kB time=00:02:09.66 bitrate= 646.9kbits/frame= 3321 fps=442 q=24.8 size=   11264kB time=00:02:19.02 bitrate= 663.7kbits/frame= 3538 fps=442 q=31.0 size=   12032kB time=00:02:27.52 bitrate= 668.1kbits/frame= 3733 fps=439 q=31.0 size=   13312kB time=00:02:35.97 bitrate= 699.2kbits/frame= 3977 fps=441 q=31.0 size=   14080kB time=00:02:45.83 bitrate= 695.5kbits/frame= 4202 fps=442 q=31.0 size=   14848kB time=00:02:55.21 bitrate= 694.2kbits/frame= 4409 fps=440 q=31.0 size=   15616kB time=00:03:03.85 bitrate= 695.8kbits/frame= 4618 fps=439 q=31.0 size=   16384kB time=00:03:13.12 bitrate= 695.0kbits/frame= 4796 fps=439 q=31.0 Lsize=   17243kB time=00:03:20.00 bitrate= 706.3kbits/s dup=375 drop=0 speed=18.3x    
video:14031kB audio:3055kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.916266%
[aac @ 0x5556cfc82100] Qavg: 10399.560

real	0m10.985s
user	1m1.552s
sys	0m1.078s

从两条命令的执行结果来看，硬解已经发挥作用了。
上面测试结果跟硬件相关，不同时间测到的结果可能不一样，只是作为参考。
硬解速度是25.3x，软解速度是18.3x
硬解耗时8.01 s，软解速度是10.98 s
从耗时和加速来看，硬解比软解稍微好一些
由于测试视频是720P的普通画质，而且只是一路视频，如果处理4K或者8K的视频，而且多路的话，硬解优势可能会更明显。


report

Recommend

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK