Getting information about a video file on Linux with the command line is very easy. I will show how you can easily find the resolution of a video and the format. This example below will return the resolution of a video file. jason@jason-desktop:~/Videos$ ffprobe XR_3DA_2019_03_16_19_22_35_777.avi 2>&1 | grep -E ‘[[:digit:]]{3,}x[[:digit:]]{3,}’ | awk ‘{print $11}’ 1920x1080jason@jason-desktop:~/Videos$ … Read more
This simple one-liner will capture a high-quality webm file from a movie. 4.4 Thu May 07 jason@Yog-Sothoth 0: $ ffmpeg -i inputmovie.avi -ss 51:43.02 -t 7 -c:v libvpx -b:v 3200k -an -sn -copyts -threads 4 guns1.webm4.4 Thu May 07 jason@Yog-Sothoth 0: $ ffmpeg -i inputmovie.avi -ss 51:43.02 -t 7 -c:v libvpx -b:v 3200k -an -sn … Read more
Encoding a silent video could be very useful if the vid is to be encoded and placed into the background of a web page for example. I am putting the video as the main menu of a Call of Chernobyl mod. So I needed a 1080p silent video to run as the background. The -an … Read more
Overlaying two other video files on to another is very easy with ffmpeg. I had two video files that are 640×360 pixels, and one that is 1920×1080. I used this command line with ffmpeg to overlay them. ffmpeg -i controller_agroprom.mp4 -vf "movie=dbz120.mp4 [a]; movie=dbz121.mp4 [b]; [in][a] overlay=0:32 [c]; [c][b] overlay=0:448" out99.mp4ffmpeg -i controller_agroprom.mp4 -vf "movie=dbz120.mp4 … Read more
Cropping a section of a video and saving it without reencoding is very simple, the example below shows how to use ffmpeg to cut out a section of video and then save it to a separate file. This example will cut out a clip starting 12 minutes into the video and 13 minutes long. 4.4 … Read more
Ripping the subtitles from a movie file is very easy, just use this command to rip the subs to a file for later perusal. Or to correct grammar and spelling/translation errors. ffmpeg -i BLADE_RUNNER_2049_WEB_DL_1080p-BLUEBIRD.mkv -map 0:s:0 subs.srtffmpeg -i BLADE_RUNNER_2049_WEB_DL_1080p-BLUEBIRD.mkv -map 0:s:0 subs.srt This rips the first subs track to a file called subs.srt. This is … Read more
How to create a transparent webm file using ffmpeg ffmpeg -i "transparent.gif" -c:v libvpx -qmin 0 -qmax 18 -crf 9 -b:v 1400K -quality good -cpu-used 0 -auto-alt-ref 0 -pix_fmt yuva420p -an -sn -metadata title="Transparent Webm." "Transparent.webm"ffmpeg -i "transparent.gif" -c:v libvpx -qmin 0 -qmax 18 -crf 9 -b:v 1400K -quality good -cpu-used 0 -auto-alt-ref 0 -pix_fmt … Read more
How to properly trim out a section of video with ffmpeg This ffmpeg command will trim out a section of video from a long video file. This is how a clip is snipped out of a movie file easily. ffmpeg -i "baraka.mkv" -ss 00:14:59.691 -to 00:17:24.044 -c:v libx264 -preset veryslow -crf 0 -c:a copy "BarakaClip.mkv"ffmpeg … Read more
This simple one-liner will encode a video to a format suitable for Youtube. 4.4 Tue Sep 04 jason@Yog-Sothoth 0: $ ffmpeg -i scorcher.avi -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart scorcher.mp4 This gives good quality output whilst reducing the file-size by 10. … Read more
To create a video file from a wav, just use ffmpeg. This is how I created a 4k resolution video using just ffmpeg and an image file and audio wav I got off the Internet. Put both files into the same folder and then run this command. This will add two frames to the video, … Read more
I made this webm using ffmpeg. Firstly, I ripped a section of video. ffmpeg -i starwars.mkv -vcodec copy -acodec copy -ss 00:19:23 -to 00:19:33 out.mkvffmpeg -i starwars.mkv -vcodec copy -acodec copy -ss 00:19:23 -to 00:19:33 out.mkv Then I did the first pass of two pass encoding. ffmpeg -i out.mkv -c:v libvpx-vp9 -pass 1 -qmin 0 … Read more
This is how to create a nice webm using FFmpeg on Linux. Firstly, capture the section of the video you wish to be encoded as a webm. This command will strip out a section of video from 00:09:23 to 00:09:33 and save it in the same format as the existing file. jason@jason-desktop:~/Videos$ ffmpeg -i total.mkv … Read more
The /g/ wiki has a good guide for creating webm video clips from your existing video content using ffmpeg. This is not very difficult and allows you to post the completed videos on your website. Firefox and Iceweasel have native support for the webm format; this is an easy way for you to post video … Read more
This is how to encode a video to webm format without sound to create a GIF replacement. The ffmpeg utility allows encoding a video in different formats. This is the perfect command for encoding a good quality webm video. ffmpeg -i gzdoom_2012_11_04_20_34_10_391.avi -ss 00:01:00.000 -to 00:01:20.000 \ -codec:v libvpx -quality good -cpu-used 0 -b:v 500k … Read more
I have had problems trying to record a screencast for Gnome Shell 3.2.1, the top and bottom panels disappear when I activate the recordmydesktop command to record the desktop to a file. I have found a solution linked below that should work and allow me to record a nice video of my Gnome Shell desktop. … Read more