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

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-1
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0answers
12 views

Proper way of installing avconv and all related libraries on ubuntu 14.04

I trying to install avconv on ubuntu14.04. I tried multiple options like compiling through binaries,using apt-get. But after installation i always get stuck either while create a video from image ...
0
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0answers
7 views

Downgrading avconv to 0.8.12 from 9.13

I'm maintaining a fairly large video editing program that relies heavily on avconv - I've recently migrated the processing to an Amazon EC2 instance, and while most things are working out reasonably ...
0
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0answers
19 views

avconv to use hardware acceleration

I have a radeon card and would like avconv to use hardware acceleration if possible. I have the proprietary driver-updates from the additional drivers tool.
0
votes
1answer
26 views

avconv slideshow from images - first image appears for split second

I am currently using the following command to generate a slideshow from all jpg's in the current directory: avconv -r 1/5 -f image2 -i %03d.jpg -r 25 -c:v mpeg2video output.mpg The command almost ...
0
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0answers
12 views

Audio is lost while converting a video file using avconv

I was converting a file from avi to mp4 using avconv: avconv -i 'Supernatural S01E10 HDTV.avi' -c:v libx264 -c:a copy -y 'Supernatural S01E10 HDTV.mp4' The file has the following properties: ...
0
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0answers
21 views

avconv pipe to v4l2loopback device

I use v4l2loopback module to create two video device. My intention is to pipe output from primary video device to these two virtual devices. I can do that using ffmpeg: ffmpeg -f video4linux2 -s ...
0
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0answers
46 views

Error(?) when converting WAV to M4A with AVCONV

I have ripped some songs from a CD to wav files with the command, cdparanoia -vB I then convert these wav files to ALAC format with the command, for f in ./*.wav; do avconv -i "$f" -c:a alac ...
0
votes
1answer
53 views

avconv incorrect length when splitting video

avconv used to work fine for me in 13.10, but now it doesn't. I'm using it in the same way as before, for example: avconv -ss 1971 -t 2216 -i x.mp4 -vcodec copy -acodec copy -metadata track="7" ...
0
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2answers
82 views

How may I burn srt subtitles to video with avconv?

System : Xubuntu 13.04 x64 I've found usage of this functionality in ffmpeg here ffmpeg -i video.avi -vf subtitles=subtitle.srt out.avi but it doesn't work. I get an error No such filter: ...
3
votes
4answers
171 views

How can I batch convert mkv files to mp4?

At moment I use the single video command of: avconv -i File_name1.mkv -codec copy File_name1.mp4 To change format but I need a method to do this for over 400 videos what would the batch command ...
5
votes
1answer
209 views

Scripting with variables from file

I have several videos on my PC that I would like to shorten. For instance I have a 30 sec video where I want to have the section from sec 15 to 20 (a 5sec video). To cut this, I use avconv. avconv -i ...
0
votes
1answer
54 views

Convert .mp4 to .ogg keeping only the audio, with Ubuntu 14.04 and avconv

How to convert a .mp4 file (downloaded from YouTube) to .ogg? (keeping only the audio) When Ubuntu had ffmpeg I could just do ffmpeg -i file.mp4 -acodec vorbis file.ogg Now we have to do without ...
2
votes
1answer
62 views

avconv assert error mpah.frame_size when trying to convert WAV to MP3 under 14.04

My objective is to convert a WAV file to MP3 on 14.04 (64-bit). The wav file is "Signed 16 bit Little Endian, Rate 16000 Hz, Mono" and is known to good. It plays fine with aplay, also converts ...
0
votes
2answers
145 views

Webm videos converted with avconv not working properly

I'm converting mp4 videos to webm with the following command: avconv -i INPUT.mp4 -c:v libvpx -qmin 10 -qmax 42 -maxrate 500k -bufsize 1000k -threads 2 -c:a libvorbis OUTPUT.webm Am I doing ...
2
votes
2answers
153 views

avconv on multiple threads

Is it possible to run jobs on multiple processor or threads to speed up avconv? Is there a feature in progress, if not I wonder why?
0
votes
1answer
84 views

Encoding ogg vorbis sound file with avconv using same codec as Audacity

For a website I am working on, I am trying to encode wav files to ogg (vorbis) using avconv. It seems like in some browsers, the resulting ogg files are not decoded properly. However, I figured out ...
0
votes
2answers
87 views

avconv set really slow frame rate

I have just a couple of images ( 20-40 ) and I want make movie which plays with frame rate 1-2 fps ( i.e. each image should be visible for 0.5-1 second ) ... so the whole movie should take ~20-40 ...
0
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0answers
50 views

Twitch streaming on ubuntu isn't working

So, i've been trying to stream to twitch on Ubuntu for awhile now, and i've tried quite a few streaming scripts for ffmpeg and avconv and also SimpleScreenRecorder's streaming function without ...
3
votes
3answers
79 views

Transcoding old mjpeg avi's to h264

I have a collection of private jpeg’s and avi’s (mjpeg format) recorded with Olympus u5000 camera. As mjpeg is not a suitable format for playing in xbmc, I would like to transcode it to h264 format. ...
3
votes
2answers
498 views

Very slow conversion with avconv (libav) - Trusty Tahr 14.04?

Yesterday I installed the latest Kubuntu release 14.04. So I meet a little problems with the media conversions. The old FFmpeg is finally replaced with avconv which is in the libav-tools library. Till ...
1
vote
1answer
644 views

(Ubuntu 14.04) High Quality .OGV conversion to either .AVI or .MP4

Unfortunately, none of the solutions found on this post helped: RELATED: Video converter: ogv to avi (or another more common format) I have a High Quality animation (specifically, from Diablo 3) on ...
0
votes
0answers
19 views

No audio with avconv (formery ffmep)

I cannot get any program that uses avconv (such as Openshot, or VLC), to play any sound on videos (or even mp3). This is after trying to uninstall and reinstall libav-tools, and even after upgrading ...
1
vote
2answers
421 views

How to convert mpeg to mp4?

I would like to convert an MPEG TS file to MP4. Is there software for Ubuntu that I can buy that just works? In 13.10 I did the following with success: Edit the file with DVB-CUT and export to MPG. ...
1
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0answers
17 views

Are my choices really limited to stream sound or hear sound?

I followed the instructions at How can I use PulseAudio virtual audio streams to play music over Skype? in order to load-module sinks. I can stream to my twitch feed no problem. My problem is that I ...
0
votes
1answer
49 views

Can't stream both audio sources, only mic works.

Why does the following code not stream both audio sources? #!/bin/bash INRES="1920x1080" OUTRES="1280x720" FPS="20" QUAL="medium" STREAM_KEY=$(cat ~/.twitch_key) avconv -g 0 \ -f x11grab -s ...
0
votes
0answers
100 views

Filter's inputs in avconv

I'm going to crop some desktop regions and overlay them on the scene. avconv -f x11grab -s:v 100x100 -r 30 -i :0.0+10:10 -f x11grab -s:v 100x100 -r 30 -i :0.0+200:200 -f alsa -ac 2 -i pulse -c:a ...
0
votes
0answers
38 views

How to manage connection lost with avconv

what I am trying to do is record the stream of an IP cam using avconv. It works great, but I need the recording to finish in the event that the connection to the camera was lost, either because the ...
1
vote
1answer
380 views

avconv - Extract one video frame and repeat it

I'd like to repeat one frame from a source video to output. I've tried the following avconv -ss 00:20:00 -i INPUT_VIDEO -t 0.5 -vsync 1 -an -r 1 -vcodec libx264 VIDEO_1F avconv -i VIDEO_1F -t 10 -r 1 ...
2
votes
0answers
162 views

Stream Webcam via command line to vlc

I've spent the morning doing searches and can't find any tutorials on how to stream my webcam(with sound) so I can watch it remotely on VLC. I have avconv installed, and can stream to twitch just ...
4
votes
2answers
130 views

avconv - Filter drawtext doesn't work

I' going to add some text to a video segment using -vf but it doesn't work. Here is what I tried avconv -ss 00:00:20 -i input.mp4 -t 00:00:10 -vcodec copy -acodec copy \ -vf ...
0
votes
1answer
162 views

When streaming / recording my desktop, how do I also record the audio?

I'm running the latest Ubuntu on my PC and want to stream my whole desktop to a TV screen connected to a Raspberry Pi running XBMC. So far I manage to grab the stream wit avconf. Dumping it in a ...
0
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0answers
34 views

Screencast with avconv cuts off last 5 seconds of audio

I'm trying to record a screencast using avconv (installed from official repo). All seems to work OK, except one thing: Always, the last 5 seconds from my mic audio are dropped from the final video. I ...
3
votes
1answer
1k views

How can I convert my mp4 files to avi using avconv?

I need to convert some mp4 files to another format (I chose avi: there may be a better one, suggestions welcome). I tried using ffmpeg but got the deprecated message so I am using avconv, but again ...
0
votes
1answer
84 views

AVConv loop issue with output file names

How can I turn: /media/MediaOne/Movies/Kids/Aladdin.avi /media/MediaOne/Movies/Kids/Incredibles.avi into /media/MediaOne/converted/Aladdin.mp4 /media/MediaOne/converted/Incredibles.mp4 when ...
5
votes
1answer
735 views

Record desktop and microphone audio with Avconv

I'm using Avconv on Ubuntu 13.10 with Gnome 3.10 to record Minecraft screencasts. However, I can only get the sound from my microphone and not the laptop speaker. How would I go about recording both ...
1
vote
1answer
1k views

How to create a time-lapse video from JPEG images using avconv?

I have a few hundreds of still images. The files are named according to the Canon convention - IMG_2501.JPG, IMG_2502.JPG, IMG_2503.JPG, .... I've tried: % avconv -f image2 -i IMG_%04d.JPG ...
0
votes
1answer
2k views

Convert “H264 MP4 AVC (part 10) (avc1)”/“MPEG AAC 48kHz” 1080p 23.976000fps videos to 720p, as complete quality as possible

file says all the files are ISO Media, MPEG v4 system, version 2 and the title's info is from VLC 2.0.9. IMO 1080p isn't necessary, especially since the other vids from earlier are 720p and are just ...
5
votes
2answers
3k views

How do you install avconv on Ubuntu Server 13.04?

I've searched and searched, but I can't find anything, besides compiling it, which gives me an error about ASM.
0
votes
1answer
327 views

Converting into mpeg4 for cinelerra without quality loss

Whilst I am mostly editing films in OpenShot, I am not sure it has quite caught up with cinelerra in terms of features. Plus the currently installed version of OpenShot is still a little buggy and ...
1
vote
1answer
1k views

What is the proper way to convert .flac files to 320 kBit/sec .mp3?

My latest challenge is finding out the correct way to convert several .flac files to 320k .mp3's. Does anyone know how to do this, maybe with avconv, without using an elaborate python script, ...
0
votes
1answer
244 views

Audio is out of sync with Avconv

I'm broadcasting to Justin TV with this script found on Github on Ubuntu 12.04. I am having issues with the audio going out of sync and getting worse as I go through my playlist. This is the code ...
2
votes
2answers
1k views

Converting images into video

I found a method on internet to use avconv to make a video from images, but the quality is very poor. I set the resolution but it didn't help. avconv -i "franc%04d.jpg" -r 30 -s:v 1280x720 a.mkv ...
1
vote
2answers
1k views

Downloadhelper fails to Convert

I'm trying to use the Firefox Add-On Downloadhelper to download and convert this 'video' of Einstein: http://sploid.gizmodo.com/listening-to-this-incredible-recording-of-einstein-will-1464557213 in ...
9
votes
2answers
7k views

How to replace avconv with (the real) ffmpeg and have it work right?

Anyone know how to install the real, current ffmpeg (not the older version by avconv that comes w/ Ubuntu) without having the problems mentioned here? Reasons: Everything works (or so many have ...
1
vote
2answers
6k views

how to convert avi (xvid) to mkv or mp4 (h264)

Very noob when it comes to video. I'm trying to make sense of what I"m finding via Google... but its mostly Greek to me. I have a bunch of Avi files that won't play in my WD TV Play box. Mediainfo ...
0
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0answers
85 views

Grab sound of a SDL game with ffmpeg/avconv

I'm trying to make a screencast of a SDL game which I developed some years ago, with the following command: sleep 5 && avconv -f x11grab -s 1366x768 -r 25 -i :0.0 -same_quant screen_cast.mkv ...
1
vote
2answers
6k views

How to change the framerate of a video without reencoding

I'm trying to change the framerate of an MP4 video (it's a 120fps GoPro video, I want to play it back at 30fps for a slow-motion effect). I'm using avconv for this: avconv -i SourceMovie.mp4 -vf ...
0
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2answers
1k views

How to cut audio file with avconv?

I have a hard time trying to figure out how to cut a file with avconv. Here's the command I use: avconv -ss 52:13:49 -t 01:13:52 -i RR119Accessibility.wav RR119Accessibility-2.wav But it doesn't ...
0
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0answers
135 views

Running Gui App with PHP

I want to run chronium and avconv from a page of my website. How can i make www-data user/group able to launch x11 applications? Thanks very much. edit: I am now able to start chronium , i have ...
0
votes
1answer
358 views

Add image to 3GP file and convert it to MP4 using avconv por ffmpeg

i have a .3GP file , i want tp add an image tp 3GP file , then , convert this file to MP4 ,'AVI' or even webm . That it means : the audio is from 3GP , the image from another file ; merge the two to ...