Using a system with two processors

Questions involving a Windows version of FFmpeg.
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Mbelyaev
Posts: 2
Joined: Wed May 13, 2015 6:14 pm

Using a system with two processors

Post by Mbelyaev » Wed May 13, 2015 7:57 pm

I use the following command line in a system with two CPU E5-2660v3 (10 cores per CPU+HP=40 threads)
"ffmpeg.exe -i 1.avi -i 1.wav -vcodec h264 -threads 40 -preset slower -crf 17 -ab 192k -ar 48000 -flags +ilme+ildct -top 0 -movflags faststart -y 1.mp4"
the command line is set to use 40 threads, but in the task manager I see that only one CPU is used
Image

When I increase the number of threads to 80 (or more), increases the CPU load, but still only one CPU

Image

How can I use both processors?

rogerdpack
Posts: 1872
Joined: Fri Aug 05, 2011 9:56 pm

Re: Using a system with two processors

Post by rogerdpack » Thu May 14, 2015 1:57 pm

complete uncut command line and console output of an example run please?

Mbelyaev
Posts: 2
Joined: Wed May 13, 2015 6:14 pm

Re: Using a system with two processors

Post by Mbelyaev » Tue Oct 10, 2017 9:20 pm

command
ffmpeg.exe -i v_file -i a_file -vcodec h264 -threads 96 -preset slower -crf 17 -ab 192k -ar 48000 -flags +ilme+ildct -x264opts bff=1 -movflags faststart -y output_file



ffmpeg version N-87353-g183fd3
0 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --e
nable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-lib
opencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 76.100 / 55. 76.100
libavcod
ec 57.106.101 / 57.106.101
libavformat 57. 82.101 / 57. 82.101
libavdevice 57. 8.101 / 57. 8.101
libavfilter 6.105.100 / 6.105.100
libswscale 4. 7.103 / 4. 7.103
libswresample 2. 8.100 / 2. 8.100
libpostproc
54. 6.100 / 54. 6.100

Guessed Channel Layout for Input Stream #0.0 : stereo

Input #0, wav, from 'S:\localhost\htdocs\uploads\12733\MARAFON_20170722_sayt.wav':
Duration: 01:07:10.08, bitrate: 1536 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s

Input #1, avi, from 'S:\localhost\htdocs\uploads\12733\MARAFON_20170722_sayt.avi':

Metadata:
date : 2017-07-20T14:05:32+03:00
encoder : Adobe Premiere Pro CC 2015 (Windows)
Duration: 01:07:10.08, start: 0.000000, bitrate: 28807 kb/s
Stream #1:0: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x57
6 [SAR 16:15 DAR 4:3], 28800 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #1:0 -> #0:0 (dvvideo (native) -> h264 (libx264))
Stream #0:0 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help

[libx264 @ 0000000001f4e440]
Application has requested 96 threads. Using a thread count greater than 16 is not recommended.

[libx264 @ 0000000001f4e440]
interlace + weightp is not implemented
[libx264 @ 0000000001f4e440] using SAR=16/15
[libx264 @ 0000000001f4e440] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2

[libx264 @ 0000000001f4e440]
profile High, level 3.1
[libx264 @ 0000000001f4e440] 264 - core 152 r2851 ba24899 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=8 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=9 psy=1 psy_rd=1.00
:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=96 lookahead_threads=4 sliced_threads=0 nr=0 decimate=1 interlaced=bff bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_a
dapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=17.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00

Output #0, mp4, to 's:\localhost\htdocs\uploads\a_videos\a_video_7078.mp4':

Metadata:
encoder : Lavf57.82.101
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(bottom coded first (swapped)), 720x576 [SAR 16:15 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : La
vc57.106.101 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
Metadata:
encoder : Lavc57.106.101 aac

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