Ubuntu Video conversion (use of Avconv)

1. Installation

sudo apt-get install ffmpeg libav-tools

2. Basic operation

Avconv [Options] [[infile Options]-i infile] [[outfile options] outfile]

e.g.:

Avconv-i GOPR7617. Mp4-qscale:v 2 Gopr7617-converted.ogg

-I is followed by the input file-qscale:v 2 is video quality (values from 1 to 31, 1 for best quality, 31 for the worst quality)

3. Other parameters

-R 30: representing frame rate 30

-c:v Mpeg2video represents the video encoder for Mpeg2video

-c:a MP2 represents the audio encoder for MP2

4. Specific examples

4.1 Video conversion to picture sequence

avconv-i [INPUT] Save_dir/%04d.png

%04D indicates that the resulting picture sequence is represented by a four-digit number

4.2 Cutting Video

If you want to cut a video, the time from 2 minutes 50 seconds to 3 minutes 50 seconds, you can execute the following command:

Avconv-i input.avi-ss 00:02:50-t 00:03:50-codec copy Output.avi

Where-codec copy means copying the original video's parameters

4.3 Batch processing

For i in *.avi; Do avconv-i "$i" [OUTPUT SETTINGS] $ (basename "$i" ". AVI "). mp4; Done

4.4 Recording Screen

Avconv-f x11grab-r 30-s 1920x1080-i: 0.0-vcodec libx264-threads 4 Your_output.avi

Parameter explanation:

-F X11grab means capturing video from X server

-R 30 stands for frame rate

-S 1920x1080 screen resolution

-i:0.0 says where you want to start your recording.

-vcodec libx264 means video encoder

-threads 4 Indicates the number of processes used

In addition, FFmpeg usage is similar

Reference Link: https://www.labnol.org/internet/useful-ffmpeg-commands/28490/

Ubuntu Video conversion (use of Avconv)