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Questions tagged [avconv]

Video and audio converter, can also capture live from an audio/video source.

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avconv Unknown encoder 'libx264' i try all solution but not working

I have this problem with avconv: Unknown encoder 'libx264' For adding subtitle I use: avconv -i video.mp4 -map 0:0 -map 0:1 -c:v libx264 -aspect 16:9 -q:v 1 -b:v 512k -strict -2 -c:a aac -ac 2 -...
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0 votes
1 answer
2k views

Error mounting /dev/sdc1 at ..... Wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error

I tried twice to write an .iso to a pendrive using BelenaEtcher. Error mounting /dev/sdc1 at /media/andy/Rescuezilla: Wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or ...
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360 views

Convert flac to lossless wma?

I have a bunch of flac files I have to convert to lossless .wma because a game I have requires I use it. I was looking at avconv, and tried avconv -i song.flac output.wma, however I believe this made ...
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3 votes
1 answer
3k views

ffmpeg vs avconv - Specifically use of lavfi in avconv

I have been trying to create a sine wave with avconv. I have read online that avconv is very similar to ffmpeg and much of the syntax of one should be almost identical to be used in the other. ...
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  • 1,307
2 votes
1 answer
206 views

How to cut up a video into uniform parts using a command line tool

I want to use a command line tool to cut up a video according to a specific interval, say 1 second. If I have a 60 second video, I expect it to be split up into 60 uniform parts. My only other ...
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15 votes
2 answers
31k views

How do you install avconv on Ubuntu 18.04?

I am trying to install avconv by running the following command, but the library doesn't exist anymore for Ubuntu 18.04. sudo apt-get install avconv It is told on other Ubuntu forums to replace the ...
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23 votes
3 answers
70k views

Download everything from a YouTube video using youtube-dl

I want to download everything (subtitles, cards, tags, annotations, thumbnails, etc. (and obviously the video w/ audio)) from a YouTube video (for example, this one). I'm using youtube-dl and, with ...
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1 vote
1 answer
2k views

How can I make videos out of image sequences, skipping every n files?

I know how to make a video out of an image sequence using ffmpeg -i %0Xd.png or *.png etc. But what I'd like to do is somehow tell ffmpeg to skip every n files. E.g. if I have files numbered 0000, ...
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  • 341
2 votes
1 answer
751 views

Play mp4 video file, by piping avconv to avplay on Ubuntu 14?

On Ubuntu 14.04, there is avconv/avplay instead of ffmpeg/ffplay; version is: $ avconv -version avconv version 11.3-6:11.3-1~trusty, Copyright (c) 2000-2014 the Libav developers built on Apr 13 ...
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0 answers
569 views

how to debug a corrupted video file with ffmpeg?

for example I downloaded some film, it is somehow encoded with some program, when I try to use ffmpeg to convert it, let's say from mkv to mp4, i get an error that: [matroska,webm @ 0x1d06640] Read ...
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1 vote
1 answer
824 views

Re-enconde mkv to mp4

my mkv file was originally encoded using following encoder: Lavf57.57.100 is it possible to reencode the same file without using it? Because I can't convert it to mp4, I get following error when I ...
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12 votes
2 answers
14k views

Reducing filesize of video in ubuntu?

How do I reduce the filesize of videos? For some reason, by phone takes giant videos. The worst of these is a 20 minute video that takes up an entire 13 GB. How can I shrink the filesizes of these? ...
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1 vote
1 answer
3k views

How do I set the FPS when using ffmpeg?

I'm trying to save my CCTV stream into segments of 300 seconds with a FPS of 7. Here's my command: ffmpeg -r 7 -i rtsp://192.168.1.100/...stream=0.sdp -acodec aac -strict -2 -vcodec copy -f segment -...
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2 votes
1 answer
4k views

Join videos side by side

In what way can I join these four videos side by side (with 10px margin between the left and the right side. No margin between top and bottom)? top_left.mp4 top_right.mp4 bottom_left.mp4 bottom_right....
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1 answer
1k views

Symlink the ffmpeg command to avconv

I’m on Ubuntu 14.04 which has no ffmpeg. Instead, it uses avconv. However, an application I want to use relies on ffmpeg. So I tried the following: sudo ln -s /usr/bin/avconv /usr/bin/ffmpeg to ...
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1 vote
0 answers
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combining mp4 files returns bad argument

I'm currently trying to combine converted mp4 files into 1 mp4 file but it's not going that great. To see my previous question, which includes some real struggle with filters and settings, see this ...
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  • 73
1 vote
1 answer
227 views

Audio desynced from avconv commands

I'm currently trying to combine several videos from different devices into 1 video. The setup is as following: User records 3 videos on a phone ( android or iOs ) The system sends these video's (mp4 ...
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8 votes
2 answers
7k views

Are ffmpeg56 and ffmpeg54 packages discontinued?

It seems that the following packages were not included in official yakkety repos, even if they were in xenial. libavcodec-ffmpeg-extra56 libavformat-ffmpeg56 libavutil-ffmpeg54 Are they unuseful / ...
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2 votes
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Installed latest version of libav from sources but the corresponding libavcodec shared library apparently is not detected

After I upgraded to Firefox 50, a new warning message started to be displayed for some of the videos (or animated gifs) that I tried to play or load. The actual text message is libavcodec may be ...
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1 vote
1 answer
7k views

How to add an image at the end of a video from the terminal

I am using Ubuntu 14.04. How can I add an image at the end of a video from the terminal? For example, I have a video called input.mp4, and I want to add an image called input.png showing my Facebook ...
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1 vote
2 answers
1k views

Converting to ogg via avconv - Unknown encoder 'libtheora' (ubuntu 16.04)

In Ubuntu 16.04 I am trying to convert a video using "input.avi" -c:v libtheora -qscale:v 6 -c:a libvorbis -qscale:a 5 "out.ogv" but I get this error: Unknown encoder 'libtheora' The were no ...
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  • 299
2 votes
1 answer
795 views

How to create video from images with filename yyyy-MM-dd:HH:mm:ss

I have a lot of images (>11.000) and I want to create a video with avconv as timelaps. With ffmpeg i did the trick with: ffmpeg -r 25 -i "/mnt/stora/dahopi/Pictures/Gartencam/%*.jpg" \ -vf ...
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1 vote
0 answers
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How to stream a .ts without any re-encoding

I'm trying to just stream a ts file to test some software on my network. I've been running this command: avconv -re -i originalfile.ts -f mpegts udp://127.0.0.1:10000 But I noticed that its re-...
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  • 121
2 votes
1 answer
466 views

Slideshow of Image Folder whose files increase

I am trying to stream video from my webcam to a series of images, process these images through a bash script that uses convert (imagemagick) and then output them to a folder. I have been successful ...
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8 votes
3 answers
15k views

Converting WEBM to MP3

I'm aware there are a couple of other questions here related to this, but the answers provided don't seem to work. I'm trying to convert a webm to mp3 with avconv. Here's how I tried to do it: $ ls ...
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1 vote
1 answer
2k views

converting multiple png to mp4, all frames are the first image

I am trying to convert multiple images (.png) into a video mp4. I am using avconv, I already made it work before but I can't remember how ... I am using ubuntu 14.04, I had the avconv 9.something, I ...
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  • 245
2 votes
1 answer
2k views

How to convert webm video to mp4 when encountering errors for unsupported LBRR frames and decoding SILK/Opus

I have a low quality, but playable .webm video. It was recorded from a webrtc live stream that seems to have been on a bad connection. There are not many video frames and the audio cuts out for a ...
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2 votes
2 answers
903 views

Converting mp3 with avconv keeping folder structure

I Have a bunch (~31GB) of mp3 files encoded at 320kbps/cbr and I want to convert them all to mp3 320kbps/vbr keeping it's tags and folder structure but in another master path. I Would like to use ...
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2 votes
1 answer
305 views

Convert video DVD for FullHD TV via NAS

I'd like to convert a video DVD into a video file that I can put on my NAS in order to watch it via PC or my TV (FullHD). Of course, I'd like to preserve high quality and high compatibility, as new ...
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1 vote
1 answer
621 views

How can I remove segment from a video using avconv?

How can I remove one, or multiple segments from a webm video using avconv (without reencoding)?
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2 votes
1 answer
3k views

Videos which are converted in Linux do not play in mobile browser

I used avconv and ffmpeg to convert video files, but these files after this process did not work on a mobile browser. They only work as well on VLC or any other browser of desktop (Linux or Windows). ...
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1 vote
1 answer
2k views

unable to download 480p format using youtube-dl

I'm trying to download 480p format youtube video using youtube-dl using youtube-dl -f 135+141 --prefer-ffmpeg <url> and i get the following error and it failed to mix audio and video WARNING:...
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  • 1,101
0 votes
1 answer
4k views

create a video file from series of png images

I know there a lot of similar questions, but for some reason even after reading them it does not work. I would like to create a video from a series of png-files. The files are named like ...
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32 votes
3 answers
125k views

How to convert .ts file into a mainstream format losslessly?

I have a file that ends in .ts (e.g., here are the first 10 MB). I would like to convert it to a more main stream format (e.g., mp4, MPEG2-PS...), in a lossless way if possible (i.e., remuxing). I ...
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  • 433
23 votes
3 answers
14k views

How do I get rid of ffmpeg `WARNING: library configuration mismatch` message?

I have been using avconv without issue, however since upgrading to 15.10 and switching to ffmpeg, I have a library configuration mismatch warning in my script output. This is my command to rip CDs ...
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  • 1,350
3 votes
1 answer
942 views

Does avconv have an equivalent complex filter for ffmpeg's adelay?

I have a working ffmpeg command to combine an audio/video file with an audio file, and I am now trying to perform the same operation using avconv on Ubuntu 14.04. My ffmpeg command requires the use of ...
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  • 190
2 votes
3 answers
2k views

Hauppauge 610 Analog Video Capture Script or Command

I have Xubuntu 14.04. The camcorder I am using is the Sony CCD-TRV16 NTSC 180x Digital Zoom. I am using the Hauppauge 610 USB-Live 2 Analog Video Digitizer and Video Capture Device to convert 8mm ...
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1 vote
1 answer
1k views

Installing libav 10 on Ubuntu 14.04

I need libav version 10 or higher. I'm running Ubuntu 14.0.3. I have versions 9.18-6 installed. Looking at https://libav.org/download/ - I see some source files I could try to compile - but I'd ...
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  • 1,546
1 vote
1 answer
481 views

Fade video and audio in and out using avconv

How do you fade video and audio in from and out to back avconv? I have found many posts on how to do this with ffmpeg but non with avconv. The length of the video will change between videos. Is it ...
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0 votes
2 answers
5k views

converting avi to streamable mp4

I just got my chromecast and I am trying to convert my uncastable avi videos to castable mp4 video format I converted some avi videos to mp4 using the command: avconv -i input_file.avi -c:v libx264 -...
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  • 544
0 votes
1 answer
317 views

MKV seek broken after re-encoding

I have a few MKV files that need the title to be changed. My searching has led me to understand that re-encoding is the the easiest way to do so. mediainfo on one of the files General Unique ID ...
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  • 836
1 vote
1 answer
615 views

avconv: Saving MP4 Process Hangs

not entirely sure if I should post this on askubuntu or stackoverflow. I'm setting up a website where users can upload videos and share them. I'm using avconv to reduce the video size and save it ...
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  • 123
0 votes
2 answers
2k views

Video codec for making home videos smaller?

Complete video beginner here. I have a bunch of old videos in multiple formats and codecs - like birthday videos, undergrad random captures etc. There is a large number of files that amount to ~25GB ...
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  • 836
3 votes
1 answer
357 views

Unable to convert to x264 mkv

I want to convert an mp4 file to mkv with the video format as x264 and audio as libmp3lame Mediainfo for the file gives: General Complete name : file_in.mp4 Format ...
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  • 836
2 votes
1 answer
3k views

How do I play a video with audio from a separate file? (mux during playback)

My laptop runs Xubuntu 14.04 LTS. I'm composing a score for a silent film, and I'm trying to "Mickey Mouse" it (synchronize notes to the action). I can tweak the silent film's editing slightly to line ...
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1 vote
0 answers
356 views

avconv Creating Corrupt (0 KB) Video Files

EDIT: I have seen this question: avconv creates zero byte file while trying to downsample mp4 video Unfortunately, it's not the same problem. I'm trying to use avconv in conjunction with a website on ...
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  • 123
1 vote
0 answers
478 views

lossless jpg to video conversion

I am trying to create a time lapse video from a bunch of jpg files. When I use the files as they came out of my camera everything works fine. Now I averaged however over multiple images to improve ...
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  • 45
3 votes
2 answers
2k views

combine audio and photo using command line in Ubuntu

What is the best way that I can make a video from one photo and one audio file like Mp3 I’m using an Ubuntu headless server, so I need a command line version for this... I tried with avconv but I ...
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8 votes
2 answers
7k views

avconv converting videos in really bad quality

I have this linux command line app called avcon. It is used to converting files. For instance if I have a file called video.mp4 I can run avconv -i video.mp4 video.ogg and it will convert this video....
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  • 183
3 votes
0 answers
421 views

Hue (tint, color) correction using avconv

I'm trying to make a demonstration of orange and blue color timing. I've been told I can do this in the YIQ domain by increasing the level of I and decreasing Q. So I want to take a video, rotate the ...
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