All Questions
20 questions
1
vote
0
answers
17
views
How to install libmysqld-dev on ubuntu 18.04? [duplicate]
I have looked through many forums but can't find how to install libvdpau-dev on Ubuntu 18.04.6. Can you help me?
~$ sudo apt-get install libvdpau-dev
Reading package lists... Done
Building ...
- 11
0
votes
2
answers
2k
views
Unable to install ffmpeg in Bionic, and held packages
I used to have ffmpeg installed on my system, but somehow – I don’t know how or when – it got uninstalled. So, I tried installing ffmpeg via Synaptic. But when I mark it for installation, it gets ...
- 1,305
2
votes
2
answers
2k
views
Error when installing opencv (any version) on Ubuntu 18.04
I got an error in make command in opencv.
[/usr/bin/ld: /usr/local/lib/libavcodec.a(vc1dsp_mmx.o): relocation R_X86_64_PC32 against symbol `ff_pw_9' can not be used when making a shared object; ...
- 21
0
votes
0
answers
121
views
Ubuntu 18.04 overheating after ffmpeg installation
I have recently installed ffmpeg by:
sudo snap install ffmpeg
on my Ubuntu 18.04 desktop.
Unfortunately, when I play a video (same problem with mp4, mkv, 3gp) , the temperature starts to rise over 80 ...
- 171
2
votes
1
answer
3k
views
18.04 ffmpeg: Play mp4 on fake webcam, "Conversion Failed!"
Trying to create a new fake webcam device (/dev/video2) and play a video on it so I can use it as a virtual webcam.
Steps I took:
sudo apt-get install v4l2loopback-dkms
sudo modprobe v4l2loopback
...
- 211
2
votes
0
answers
3k
views
GLIBC_2.27 not found when launching applications through Nautilus
I have VSCode installed and never experienced this issue before, but now after I installed some web camera utilities and video conversion I seemed unable to launch VSCode from Nautilus.
What works:
...
- 123
5
votes
1
answer
5k
views
AV1 video from 9gag convert
Players can't play it, FFmpeg can't convert it
VLC:
Codec not supported:
VLC could not decode the format "av01" (AOMedia's AV1 Video)
Video:
video/x-gst-fourcc-av01 decoder is requiered to play ...
- 531
2
votes
1
answer
341
views
Use bash and ffmpeg in 18.04 to concatenate multiple 3GP files to one 3GP file, matching by date YYYYMMDD in filename
I have these example files in an Ubuntu 18.04 system:
VID_20190407_160033.3gp
VID_20190407_161444.3gp
VID_20190407_161609.3gp
VID_20190415_183315.3gp
VID_20190415_183411.3gp
...
- 860
1
vote
0
answers
116
views
Select files and merge with same filename but different extension
I have a bunch of MP4s and Wav files in a folder with the same filenames, different file extension.
I want to replace the audio in the video files with the wav.
i.e. something like this:
for i in *...
- 201
1
vote
0
answers
609
views
Artifacts when playing a video
When I play a video with mpv (xubuntu 18.04 LTS), every couple of minutes, there are what I'd call a "keyframe" artifacts.
Basically it seem like the video failed to decode a keyframe and continues ...
- 149
1
vote
0
answers
1k
views
mp4 files get corrupted when transfering them to ubuntu 18.04
This seems like a weird issue, so I've transfered some mp4 files to Ubuntu via FTP and some of them seem to be broken, more specifically the header, I get this message when I try to play them with VLC:...
- 11
0
votes
0
answers
134
views
strftime() format dates not working in Custom Keyboard Shortcut
We were using a Custom Shortcut under the Keyboard settings in Ubuntu 16.04 that allowed us to automatically initiate an ffmpeg screen recording with Super-Z. The command we were using was:
gnome-...
- 51
2
votes
1
answer
2k
views
ffmpeg static builds from john requires libraries?
I'm trying to run ffmpeg with ubuntu 18.04. I downloaded latest git build from https://johnvansickle.com/ffmpeg/
But when I try to run any ffmpeg command, it complains about a lot of missing ...
- 192
2
votes
0
answers
2k
views
E: Failed to fetch ... 404 Not Found \n E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? [duplicate]
I am receiving
$ sudo apt-get install ffmpeg
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
...
1
vote
2
answers
4k
views
ffmpeg black screen recording
Hello when i want to record my desktop or recording video with ffmpeg it generates a black video ??
my operating system ubuntu 18:04 bionic kernel 4.16
here is the command I'm using :
ffmpeg -f ...
- 11
17
votes
3
answers
74k
views
How to use GPU acceleration in FFmpeg with AMD Radeon?
I have a Radeon Vega 64, and installed AMDGPU from the official website, but I have no idea where to go from here.
I want to use hardware acceleration for converting video with FFmpeg. What is the ...
- 1,837
2
votes
1
answer
9k
views
Unable to install ffmpeg on Ubuntu 18.04.1 LTS
I seem to be having issues installing ffmpeg on my server machine, I have tried multiple resources online including adding different PPA's but none of them seem to have worked so I have since removed ...
1
vote
0
answers
6k
views
How to use a hardware device for HW-accelerated encoding with `ffmpeg` `snap`?
Using the ffmpeg package 18.04 from apt I can encode a video hardware-accelerated in HEVC on Kaby Lake:
ffmpeg -vaapi_device /dev/dri/renderD128 -i input.mkv -vf 'format=nv12,hwupload' -c:v ...
- 5,895
1
vote
0
answers
147
views
Combine an image and audio file to create a Video in Ubuntu 18.04 [duplicate]
I am trying to create a video file(can be any format) from an image file(also any format) and a mp3 audio file.
I found that we can use ffmpeg and tried the answers here:
The following produces a ...
10
votes
3
answers
5k
views
(18.04) Recording-Problems with my USB-Microphone
When I record a Sound from my Logitech Webcam the Voice is like a "Mickey Mouse" - in "Cheese" the recorded Video are ok! Please help me!
I have the Problem with Ubuntu 18.04 and the same in Kubuntu ...
- 101