Questions tagged [video]

related or about the video issues, the range varies from playing a video file, the formats, tools to work with it in *nix operatin systems up to issues surrounding it in specific environment (ie. console, framebuffer, X11 ...)

Filter by
Sorted by
Tagged with
0
votes
0answers
23 views

Transform a video from mov format to aiv format

In the linux environment, are there any tools that can transform a video from mov format to aiv format?
7
votes
1answer
2k views

Multiple /dev/video for one physical device

First some specs: my computer is an HP EliteBook 8460p. It comes with an integrated Chicony HP HD webcam. My issue is that a lot of applications (well, at least Skype and guvcview) are displaying ...
22
votes
6answers
23k views

How do I merge two *.avi files into one

I have two *.avi files: sequence1.avi sequence2.avi How do I merge these two files using a command-line or GUI?
0
votes
0answers
78 views

One physical device mounts two /dev/video devices; which will cause fswebcam to throw an ioctl error?

The presenting problem and symptoms: I've found that for each individual physical USB web camera I attach in Raspbian, a pair of such /dev/video devices is created. When I try to capture an image ...
0
votes
0answers
59 views

xrandr Dual Monitor on Raspberry Pi

(I have asked this question on the Raspberry Pi forum as well, but hoping that there may be general (U|LI)nux advice I can get.) I am trying to get xrandr to recognize both the HDMI video and a 3.5" ...
2
votes
0answers
985 views

E: Package 'gstreamer0.10-plugins-bad' has no installation candidate

I turned on the "Video Capture" option in VirtualBox, recorded a video in webm format, shut down the virtual machine and tried to play this video, but I got this error in the Totem video player: An ...
2
votes
2answers
4k views

use ffplay to play a list of audio files

There are many audio and video players but I would like to use one tool for many propose. So I would like to use ffplay as audio and video player. To play a one file the command is like this. ffplay ...
1
vote
0answers
77 views

Kali Linux does not enable color profiles when I use a kvm switch

I have a computer with a generic Radeon card running Kali Linux. The install is a week old. When I plug the computer into a kvm switch cable, the only color displayed is the dark blue of the Kali ...
1
vote
0answers
1k views

Video playback not working/choppy in Linux Mint 19.2

I have a problem with Linux Mint and video playback. The issue is that opening any .mp4 from disk (don't have any other filestypes) results in video player crash. Tried many different players like ...
2
votes
0answers
18 views

How can I maximise a video in a tiled window only?

Say I have 3 windows tiled on my workspace. A vim terminal session tiled vertically on the right A pdf tiled in the top left corner A youtube video playing in chrome and tiled in the bottom left ...
18
votes
5answers
30k views

How do I watch my webcams feed in linux

In windows I can open "My Computer" and click on the "Webcam" icon to get a feed from my webcam. I can also take snapshots of that feed. Can I do the same in Ubuntu? Without installing any extra ...
1
vote
0answers
18 views

How to increase the duration of the transition effect between multiple video cuts in this ffmpeg `-filter_complex` command

As instructed in Gyan's solution to this question, ffmpeg can be used to interleave two audio/video inputs with a lapse dissolve transition. For example, this command will divide each input into cut ...
1
vote
1answer
421 views

GParted live graphical mode not working

I want to run GParted live 1.0.0.3 on a laptop with both an integrated and discrete graphic card. I managed to start GParted using the "vga=normal" boot option, but X refuses to start either if select ...
1
vote
1answer
420 views

Trans-coding hevc / x265 video file using VLC and viewing it on a chromecast

I've been successful at getting VLC to stream a x264 encoded file from a network file share to an old chromecast (which mine doesn't support hevc / x265 directly) using the commands below. vlc -vv --...
1
vote
0answers
37 views

ffmpeg vaapi encode causes black bar on the right side

I'm trying to transcode an 854x480 h264 mp4 video to an h265 mp4 video using vaapi. The video does come out nice looking, And encodes very quickly. But there is a black bar on the right side of the ...
1
vote
2answers
757 views

How to remove arbitrary subtitles formats from mkv with a shell loop

I made this script to remove ALL subs from all mkv files in a given path. It works ok. But now I want to only remove PGS subtitles and keep all SRT files, no matter the language. for file in "$@"*...
0
votes
2answers
1k views

Udev Rule to discern 2 identical webcams on Linux

I have 2 identical webcams plugged into my Raspberry Pi. I want discern which camera is which based on the USB port they are plugged in to. This is the purpose of udev, so I wrote the following rule:...
1
vote
2answers
581 views

Udev rules for seemingly indistinguishable devices

I'm trying to use udev to automatically set up symlinks to an Intel RealSense D415. This is because I use several cameras on the machine and need to be able to reliably refer to them via a filename (...
0
votes
0answers
34 views

Query the target device for installed PCI devices on ubuntu

Is there a way to query the target device for installed PCI devices on ubuntu. I use VideoCapture Card and 8 cameras. Every time /dev/video* changes but I would like to assign a camera to specific /...
2
votes
1answer
699 views

Linux Mint - Glitch in Screen Recording video files

I am new to Linux, and most things seem to work fine; but it is not the case of Screen Recording. I have tried with the following programs: OBS Studio Voko Screen Kazam And I have tried with the ...
2
votes
2answers
945 views

Chromium won't play any Youtube videos, Firefox plays them

I'm using Devuan Beowulf (~= Debian Buster), freshly installed. I can play Youtube.com videos fine using Firefox, but if I try them in Chromium, it keeps shown the loading animation (the circle with ...
1
vote
0answers
2k views

How to significantly lower a video file size with ffmpeg without quality loss?

I see there are videos on youtube with 1080p resolution that are more than 10 minutes long and only 50-60 mb in size. I have a video only 3 minutes long and only 720p resolution but unable to bring ...
1
vote
0answers
25 views

How to record the lock screen and other users sessions?

After I log in to my Linux session I start recording my screen with the command recordmydesktop --fps 2 --no-sound --on-the-fly-encoding --compress-cache --no-frame --v_quality 10 But when I to go ...
2
votes
0answers
792 views

Script for ffmpeg webcam audio video recording

I've bought the very popular Logitech C920 for creating YouTube videos with ffmpeg. My desire is to build a script for easy recording without bothering with the powerful but rather cryptic ffmpeg ...
0
votes
0answers
24 views

How to add still images to audios to make a video by FFMPEG?

I have several audio files, and need to add different still images to them. Currently, I make a video of each audio file with the corresponding still image as ffmpeg -loop 1 -framerate 1 -i photo1....
1
vote
0answers
22 views

Which format my webcam produces

How can i find out which format (preffix) my USB webcam produces ? I want recording webcam to HDD with ffmpeg and i need save the capture record without reencoding because of CPU usage (i using ...
0
votes
1answer
17 views

Random lines during screen recording playback

Every time I record or screencast my desktop, once I play it back I get random lines appearing now and then, no matter what media player I use. They're either black or they show fragments of my ...
0
votes
0answers
26 views

What deteriorating component in my laptop is causing poor performance while playing videos

I have a laptop which I have been using for years. I was always able to watch Youtube videos and hours-long HD videos stored on my hard drive just fine. However, recently the device started poorly ...
30
votes
9answers
22k views

Get total duration of video files in a directory

I have a list of .ts files: out1.ts ... out749.ts out8159.ts out8818.ts How can I get the total duration (running time) of all these files?
0
votes
1answer
56 views

youtube-dl : how to skip downloads lower than 480p resolution?

When using the popular program youtube-dl, how can I skip download of certain videos, particularly ones that have a lower quality than 480p resolution?
0
votes
0answers
39 views

Batch set MP4 create date metadata from filename

On a Linux system, I have a bunch of MP4 files named like 20190228_155905.mp4 but with no metadata. I've previously had a similar problem with some jpg's which I solved manually with exiv2 -M"set ...
0
votes
0answers
115 views

Linux Mint 19 install and update problems

I'm using Linux Mint, how can I check which Graphics drivers are being used ? I want to enable the Intel Hd graphics drivers, whcih I think are already installed (how would I check?). How do I ...
2
votes
2answers
132 views

How do I use mpg123 to extract the audio from a .mov video to a .wav file?

I have some video files in .MOV format and I want to extract the audio from them to .WAV files. I cannot use MP3 files as I'm trying to feed the sound into a sonographic analysis program (WASP) that ...
40
votes
4answers
61k views

Merge two video clips into one, placing them next to each other

I have two video clips. Both are 640x480 and last 10 minutes. One contains background audio, the other one a singing actor. I would like to create a single 10 minute video clip measuring 1280x480 (in ...
0
votes
0answers
13 views

Play two webcam feeds on top of each other in fullscreen mode

I'm looking for a linux app which I can configure to play on launch the feed of two connected webcams. The feed of webcam 1 should be fullscreen, while the second one should play in a specified ...
2
votes
1answer
404 views

How do I reduze the size of a video to a target size?

I want to reduce the size of a video to be able to send it via email and such. I looked at this question where I got good advice on how to reduce it. Problem is that I need to manually calculate the ...
1
vote
1answer
3k views

H.264 videos fail in Firefox or Chromium on Fedora 30

https://www.youtube.com/html5 reports my browsers (Firefox 66.0.5-1.fc30 and Chromium 73.0.3683.86-2.fc30) on my Gigabyte GA-970A-UD3 with a Radeon RX-580 GPU don't support H.264. I've tried ...
15
votes
9answers
45k views

Fast tool to generate thumbnail video galleries for command line

I use gframecatcher to generate thumbnail video galleries, i.e. something like this: However this is a GUI tool and I want to create recursively a gallery for every video in a directory structure, so ...
0
votes
0answers
62 views

Best way to sync OMXPlayer audio and video?

I am having issues getting OMXPlayer video played on a TV via HDMI to sync with audio streamed over the network. My thought was delay the video output by ~500 ms then use pavucontrol to fine tune the ...
2
votes
0answers
25 views

External network display for playing media

On my Windows 10 computer I was able to right click a media file (video) and choose "Play To ..." and then select my Sony Tv which was plugged into the network. The video would then play with the ...
1
vote
1answer
337 views

Screen Tearing on Linux Mint Mate with Intel Graphics

I'm experiencing screen tearing with Lint Mint Mate 19.1. Running lspci | grep VGA prints 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated ...
2
votes
0answers
258 views

Why is VLC Media Player playing videos like this?

Please see the short GIF recorded screencast of the problem in action. This is how all videos open and play, I cannot see a darn thing, just these big colored bars where the color is taken from the ...
1
vote
2answers
80 views

How to list all files less than 1080p

There are a number of Youtube channels that I archive using a daily cron script that runs youtube-dl. However, in checking over the videos to make sure my script is working, I noticed for one of the ...
3
votes
1answer
5k views

Arch: libGL: screen 0 does not appear to be DRI3 capable

I've a problem with certain 32 bit game on 64 bit Arch Linux. It looks like the problem lies in my 32 bit enviroment which cannot see my 64 bit NVidia drivers. When I launch 64bit version of ...
46
votes
3answers
92k views

Re-encoding video library in x265 (HEVC) with no quality loss

I am trying to convert my video library to HEVC format to gain space. I ran the following command on all of the video files in my library: #!/bin/bash for i in *.mp4; do #Output new files by ...
3
votes
1answer
987 views

What would cause my video driver to stop working after every update?

I am not sure if this is a systemd issue (like order of loading modules) or a video driver issue. It does seem like every time I update boot-related stuff from a chrooted environment using my Arch ...
3
votes
0answers
161 views

restrict access to the webcam to certain user/software on Ubuntu 16

I would like to restrict the access to the webcam only to certain programs/users. I use Ubuntu 16.04. If I am right my webcam is linked with /dev/video0 (just as an example), which is owned by root ...
2
votes
1answer
320 views

S-Video has no color output for cx231xx

I've got an Elgato Video Capture V2 capture card I'd like to use for capturing S-Video. Sadly, when I use tvime to capture, the output is shown in black and white. I tested this using cheese as well, ...
6
votes
4answers
10k views

How can I restore file timestamps of video recordings using the embedded metadata?

I'm looking for a command that will read the metadata of a ‘*.mp4’ file and touch the file's timestamp with the creation time of the video. The command should be read-only with respect to the file ...
0
votes
0answers
257 views

Weird graphics after fresh arch install on virtual box

I just installed arch on virtualbox to test it out but for some reason it's not displaying correctly ( here's how it looks: http://imgur.com/avbpxHE ) I'm using virtualbox version 4.2.16 Basically I ...

1 2 3 4 5 11