ffmpeg threads | How many threads does ffmpeg use by default?

Keyword	CPC	PCC	Volume	Score	Length of keyword
ffmpeg threads	1.37	1	111	19	14
ffmpeg	0.92	0.8	3395	77	6
threads	0.82	0.3	685	37	7

Keyword	CPC	PCC	Volume	Score
ffmpeg threads	1.9	0.9	626	84
ffmpeg threads option	1.94	0.6	5933	41
ffmpeg threads 0	1.61	0.5	10000	19
ffmpeg threads auto	1.05	0.8	1897	77
ffmpeg threads command	1.12	0.7	5429	88
is 32 threads enough for ffmpeg x265 encode	0.65	0.7	7167	87
ffmpeg limit threads	0.63	0.1	7456	29
ffmpeg multiple threads	1.15	1	9894	4
ffmpeg number of threads	0.22	0.2	2637	44
ffmpeg disable threads	0.29	0.4	1345	62
ffmpeg increase threads	0.64	0.9	3727	45
ffmpeg cpu threads	0.14	0.4	1761	9

Search Results related to ffmpeg threads on Search Engine

How many threads does ffmpeg use by default? - Super User
superuser.com

https://superuser.com/questions/155305/how-many-threads-does-ffmpeg-use-by-default

WEBAug 11, 2011 · You can verify this on a multi-core computer by examining CPU load (Linux: top, Windows: task manager) with different options to ffmpeg: -threads 0 (optimal); -threads 1 (single-threaded); -threads 2 (2 threads for e.g. an Intel Core 2 Duo); none (the default, also optimal).

DA: 68 PA: 52 MOZ Rank: 59

How to utilize all cores on high-end CPUs using ffmpeg
superuser.com

https://superuser.com/questions/1418816/how-to-utilize-all-cores-on-high-end-cpus-using-ffmpeg

WEBMar 29, 2019 · ffmpeg -threads 24 -i input.mkv -c:v libx264 -preset medium -c:a copy -vf subtitles=input.mkv output.mp4. I also trued using -sws_flags fast_bilinear & -x264-params sliced-threads=1 but both don't change much. I did notice using -tune zerolatency slightly increased CPU use for some cores, but the overall CPU usage was below 15%. top output:

DA: 88 PA: 81 MOZ Rank: 88

FFmpeg Threads Command: How it Affects Quality and …
streaminglearningcenter.com

https://streaminglearningcenter.com/blogs/ffmpeg-command-threads-how-it-affects-quality-and-performance.html

WEBJun 12, 2019 · ffmpeg -y -i BBB_1080p.mp4 -c:v libx264 -b:v 4.5M -bufsize 9M -maxrate 6M -threads 4 -g 120 -tune psnr -report BBB_1080p_6M_threads_4.mp4 As you can see in the following graph, the overall quality difference was minor, averaging under .2 VMAF points with the file encoded with 4 threads always higher.

DA: 39 PA: 61 MOZ Rank: 23

video - setting cpu thread in ffmpeg - Stack Overflow
stackoverflow.com

https://stackoverflow.com/questions/54020024/setting-cpu-thread-in-ffmpeg

WEBJun 8, 2023 · You can set -threads 24 after the -i argument. But you get diminishing returns once you pass from real threads into Hyperthreading type threads. In that case, you should set -threads 12.

DA: 90 PA: 99 MOZ Rank: 18

Working with ffmpeg on Multi-Core Systems - Igor Oseledko
igoroseledko.com

https://www.igoroseledko.com/working-with-ffmpeg-on-multi-core-systems/

WEBAug 1, 2022 · The first run is just a basic loop, running one ffmpeg instance at a time with -threads option set to 0. This here is as if you were running the commands sequentially by hand, minus any delays due to you. i=0; j=0 time while [ ${j} -le ${f_duration} ]; do ffmpeg -i "${f_path}" -threads 0 -ss ${j} -t 15 ${f_name}_${i}.${f_ext} 2>/dev/null 1>&2

DA: 89 PA: 84 MOZ Rank: 56

ffmpeg Documentation
ffmpeg.org

https://ffmpeg.org/ffmpeg.html

WEB3 days ago · There are three output files specified, and for the first two, no -map options are set, so ffmpeg will select streams for these two files automatically.. out1.mkv is a Matroska container file and accepts video, audio and subtitle streams, so ffmpeg will try to select one of each type. For video, it will select stream 0 from B.mp4, which has the highest …

DA: 38 PA: 73 MOZ Rank: 62

Thread count option in FFmpeg for FASTEST conversion to h264?
stackoverflow.com

https://stackoverflow.com/questions/7379980/thread-count-option-in-ffmpeg-for-fastest-conversion-to-h264

WEBffmpeg. h.264. asked Sep 11, 2011 at 17:25. S B. 8,184 10 56 109. 6. It's -threads x not -thread x. – Gp2mv3. Nov 9, 2013 at 23:05. 4 Answers. Sorted by: 15. I have found that threads do not do a good job of utilizing all the cores, the …

DA: 57 PA: 55 MOZ Rank: 80

Documentation - FFmpeg
ffmpeg.org

https://ffmpeg.org/documentation.html

WEBComponents Documentation. Utilities. Video scaling and pixel format converter. Audio resampler. Encoders and decoders (codecs) Bitstream filters. Muxers and demuxers (formats) Protocols. Input and output devices.

DA: 99 PA: 48 MOZ Rank: 67

FFmpeg Codecs Documentation
ffmpeg.org

https://ffmpeg.org/ffmpeg-codecs.html

WEBthreads (threads) Number of encoding threads. thread_type. Set multithreading technique. Possible values: ‘slice’ Slice-based multithreading. It generates the same effect as x264’s --sliced-threads option. ‘frame’ Frame-based multithreading. flags. Set encoding flags. It can be used to disable closed GOP and enable open GOP by setting ...

DA: 85 PA: 20 MOZ Rank: 49

StreamingGuide – FFmpeg
ffmpeg.org

https://trac.ffmpeg.org/wiki/StreamingGuide

WEBCodecs. HTTP Live Streaming and Streaming with multiple bitrates. Saving a file and Streaming at the same time. Transcoding / repeating. Adjusting bitrate based on line conditions. Troubleshooting Streaming. Point to point streaming. External links.

DA: 69 PA: 81 MOZ Rank: 83