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Questions tagged [avconv]

avconv is a command-line tool for decoding, encoding, filtering, demuxing, and muxing multimedia. It is created by Libav–a fork of FFmpeg. Do not use the ffmpeg tag for avconv as these two tools are not identical. Non-programming questions involving this tool are off-topic and should be asked at Super User.

avconv is an open-source command-line video and audio encoding tool. It is created by Libav–a fork of FFmpeg.

Example command

avconv -i input.avi output.mp4

Getting avconv

  • Ubuntu 14.04 and Debian Jessie & Wheezy users can install avconv from the repository with the libav-tools package. Later Ubuntu and Debian versions provide the ffmpeg package instead.

  • Windows users can download avconv at builds.libav.org.

Links

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Avconv - misunderstanding file names with FPS

I have these series of file names: 00001_2013-10-03_07-01-00.png 00007_2013-10-03_07-07-00.png 00013_2013-10-03_07-13-00.png 00002_2013-10-03_07-02-00.png 00008_2013-10-03_07-08-00.png 00014_2013-10-03_07-14-00.png 00003_2013-10-03_07-03-00.png …
Charlie Davies
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Transcoding rtmp to hls

I did this steps for transcoding my rtmp live streaming to hls on ubuntu 12.04: apt-get -y install build-essential checkinstall git libfaac-dev libgpac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev librtmp-dev libtheora-dev…
Mohammad Ali Fayyaz
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How to get the duration of a file in milliseconds

I am trying to get the duration of an audio file (.wav) in milliseconds. I have seen some command lines using ffmpeg, but this library is deprecated (remplaced by avconv) on my Ubuntu version, and i didn't find anything on it. I can get the duration…
Ludo
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Adding 2 pictures to a video with avconv

Here is the command that I am using to add a logo to a stream avconv -f alsa -i pulse -f x11grab -s hd720 -i :1.0+nomouse -vf "movie=logo.png [watermark]; [in][watermark] overlay=10:10 [out]" -acodec libvo_aacenc -vcodec libx264 -threads auto -f flv…
Dan Mooray
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Stop avconv Bash script on user input and continue loop

Basically (hopefully) I want to record a video stream from a webcam and save it in a specific directory, then kill that when a user inputs some numbers. I'm not explaining this well so here's what I'm doing currently: #!/bin/bash while…
Elliot Reed
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How to make video with fixed duration

I have videos: video1 - 923 seconds video2 - 1457 seconds video3 - 860 seconds I need to cut these videos and fix its duration - 600 seconds. But the difficulty is that I need to cut them under the scheme Where : blue segments is always 120…
Alex
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Can't record S-Video with avconv

I've been trying to record feed from my S-Video cable using avconv. I am able to record composite video with avconv, but the quality isn't the best. To set the input, I use v4l2-ctl -i $n, where $n is either 0 for composite, or 1 for S-Video. I…
Ertain
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How to convert audio/music to video with static image (commandline)

I have an audio file which I would like to convert to a video. If possible, I would like to use a static image for appearing at the video. I have investigated a couple possible solutions, but non of them is fully functional. This solution in…
lefterav
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How do I fix this error in Python: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work

I have been trying to mess around with some of Eleven Labs API and make a simple program that takes in a string and can use the API to retrun a voice provided by Eleven Labs speaking the string. I've seen people using similar code to this but I…
Mason Griffith
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How to install avconv on Ubuntu 18.04.5 Bionic

I want to use avconv for audio related operations on my Ubuntu Bionic 18.04.5 system, but it's not getting installed as a part of the following packages. sudo apt-get install ffmpeg:i386 sudo apt-get install ffmpeg I still get.. avconv: command not…
ugola
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ffmpeg install failing on docker container

I have a Dockerfile as below, where i am trying to install ffmpeg for audio-video processing. FROM ubuntu:18.04 RUN apt-get update RUN apt install ffmpeg -y --fix-missing I have tried other versions of Ubuntu docker image as well, but i keep…
Sarang Manjrekar
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How to capture screen and audio input and push to rtmp server?

I use avconv on ubuntu,I found this command avconv -f alsa -i pulse -f x11grab -r 25 -s 1280x720 -i :0.0+0,0 -acodec libfaac -vcodec libx264 -pre:0 lossless_ultrafast -threads 0 video.mkv to save as a file, and this command avconv -i ./test.m4v…
ggaaooppeenngg
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webm to mp3 conversion very slow with avconv

I am using this passthru("youtube-dl -o '../temp/%(title)s.%(ext)s' --restrict- filenames --no-part --no-progress --newline --extract-audio --audio-format mp3 -w --audio-quality 0 http://www.youtube.com$vid"); as a part of my code where I download…
Shashwat Singh
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Avconv - create video from image for a specific number of frames

I'm trying to create a video from a single image using avconv for a specific number of frames. I am using the `loop' option, but I can only specify the time I want the video to be in terms of seconds. I am currently running the following command: …
Novice Programmer
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FFmpeg (avconv) rtp stream, how to attach sdp file?

I have a rtp live stream whit h.254 video, I want to copy it to file I use: avconv -i rtp://@192.168.0.34:60005 -an -acodec copy -vcodec copy abc.mp4 But I have an error: [rtp @ 0x1f6cfe0] Unable to receive RTP payload type 96 without an SDP file…
novox
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