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 ...)

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263 views

gst-launch full screen

I've been using gstreamer on yocto project for playing video on HDMI, but I can't find anyway to play the video in full screen. Command I'm using is gst-launch playbin uri=file:///file/path How ...
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1answer
483 views

Arch screen freezing / pausing

My arch laptop has been freezing during video playback recently - not completely, but the video playback will freeze though audio will still play, and will unfreeze after input (moving the mouse or ...
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1answer
377 views

Reset audio/video drivers and configurations to a fresh state

I recently moved my previous install of Linux Mint 18.1 from a Dell Inspiron to a newly bought Dell XPS 9360, connected to a Lenovo Thunderbolt 3 Dock, which hooks it to all my peripherals and an ...
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1answer
3k views

Ubuntu 16.04 / 18.04 video playback lags / stutters

Since some weeks (I didn't use the video playback on this machine for quite a while), I experience lagging/stuttering while playing videos, regardless if it is in a browser or in Ubuntu videos, only ...
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1answer
270 views

How to force 60 Hz in 1366x768 despite kernel bug after kernel 4.13?

If your screen resolution is 1366x768 and your Intel card is able to go down to 40 Hz screen refresh rate for power saving (and most modern laptops can, no matter how cheap) instead of the usual 60 Hz,...
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2answers
51 views

Linux showing incorrect file modified time for camera video

I recorded a video with my camera and when I open the directory containing the video files, the modified time is always wrong. Here is a screenshot from the video clearly showing the correct time ...
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0answers
158 views

Debian Intel graphic drivers for nuc6i7kyk

I have installed Debian Stretch on a nuc6i7kyk, but I cannot get the video drivers to work (I keep getting UNCLAIMED drivers). Here as much info I can share on my install: $ glxinfo | grep -i ...
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1answer
2k views

Chromium not playing live youtube videos and other online streams

This is posted in order to provide an answer. Details about the initial problem are here. It involved not being able to play Youtube live streams, Tweeter live streams, Vimeo non-live streams and ...
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3answers
5k views

Cannot play live Youtube on other streams in Opera - no h264 support

I have good reasons to use Opera as my default browser (I find it lighter than Firefox Quantum and Chrome/Chromium, I like its speed-dial bookmarks, as well as other features and details). Opera ...
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0answers
398 views

Use guvcview to setup Logitech C920 webcam and keep configuration

I have a Logitech C920 webcam connected to my computer running Debian Linux. I want to access the stream by using mplayer (/dev/video0) and it works out of the box. However, the saturation/brightness/...
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0answers
326 views

play 4 rtsp streams in fullscreen

I have 4 IP cameras in my network, and I need to play the 4 streams at once in a grid view, currently i execute this command: ffplay rtsp://10.1.10.123 for each IP and then I rearrange the windows,...
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2answers
400 views

Turn off, not stand-by, console tty1 video

I want the opposite of what seemingly everybody else wants: on my plain old character mode tty1 console directly served by the video card of my bare metal Debian 8.10 Jessie box, I want the screen ...
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2answers
566 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:...
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104 views

How do I set up a video loopback for recording my screen in X11 debian?

I am using LXDE on Debian Stretch and wish to record my screen using VLC media player. How do I set up the screen:// MRL capture device? Below is my attempt when assuming that I already had the ...
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0answers
151 views

Cannot turn on external display with xrandr

I'm running Linux on my Macbook Pro with i3 and I have been able to get everything working execpt my external monitor from the HDMI port. xrandr sees the monitor but the monitor still says "no signal" ...
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0answers
884 views

Very high CPU usage when playing web videos (Ubuntu 16.04.3)

I have just set up a new laptop - Dell XPS13 running Ubuntu 16.04.3 LTS. I've noticed very high CPU usage when watching web video. From a fresh boot, I start a single Firefox (or Chromium) window, ...
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223 views

video player which can step forward and backward frame by frame smoothly

I am looking for a video player which can allow me to step forward and backward frame by frame by using keyboard shortcut. I have video with 24fps. Presently i am using mpv. I am trying the ...
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0answers
89 views

Playing pdf with embedded animations

I have been trying to find a PDF viewer in Linux with the ability to play embedded animations (with the video data saved into the PDF). I have read tens of forum questions and tried many different ...
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0answers
46 views

CUDA on Linux - screen freezes

So I have Fedora 27 and I have installed the latest NVidia drivers on a laptop that has a Quadro M1000M. I am trying out an intense CUDA process (xmrig). But when it's running, the graphical screen ...
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1answer
504 views

H.264/MPEG-4 from PNG frames: how to, and how to tune compression

I often create digital animations by preparing all the frames in .png format (with minimal compression), that I need to convert to video format for upload to websites such as reddit, instagram, gfycat....
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1answer
152 views

Install mplayer or alternative player with GPU acceleration on ARMv8

I have a custom board that is similar to Odroid C2 i.e. it is powered by Amlogic S905 with a Mali 450 GPU. Support from Amlogic is limited, so I cannot turn to the manufacturer. I am running Arch ...
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1answer
727 views

Allow multiple programs to access the same V4L2 device

I'd like to be able to capture input from a webcam to to separate programs. One for VoIP, and one for capture. The problem is - Linux will allow only one process to access a V4L2 device, so once I ...
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16 views

Video player in browser lags, would increasing VGA Memory in BIOS help?

Using Ubuntu 14.04 (but the question is in general) - using a HTML5 video player, the video lags, freezes for a very small amount of time, sometimes, not so often. Could it help, that I increase the ...
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0answers
2k views

Why do the command cvt and gtf give different frequency values

I am trying to setup a xrandr mode line for a X display but in attempting to find the appropriate parameters, I note there are two different calculation programs (see below). Why the difference in ...
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1answer
513 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 "$@"*...
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0answers
251 views

Does installing the proprietary Nvidia driver fix the frequent system hang/crash problem with the nouveau driver on Fedora 27?

There are several blog posts describing how to install the proprietary Nvidia gpu/graphics card driver on older versions of F27 running wayland. Some suggest that others approaches may cause ...
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2answers
920 views

Rotate webcam as well as screen (portrait mode)

TL;DR: Is it possible to rotate by 90 degrees the feed of a built-in screen webcam? I have 2 screen monitors, one in landscape and one in portrait mode. The webcam is on the "portrait" monitor, the "...
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1answer
45 views

How to reach and read GUI data from graphics memory

I want to connect an e-ink display to a single board linux machine, PINE64. E-ink display should be used as primary monitor, i.e. GUI should be shown on that. Since there is no direct method to ...
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0answers
847 views

Linux Mint: How to disable Software Rendering Mode? [closed]

I changed from nouveau drivers to the recommended NVIDIA 384.90. After restarting I saw the message about the software rendering mode. Now I reenabled nouveau drivers and it's still starting the same ...
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0answers
555 views

Choppy videos with tearing (Linux Mint and others) [closed]

I recently switched from Windows 7 to Linux on my desktop PC. I've tried several distros: elementaryOS, Manjaro, Linux Mint with Cinnamon and currently with xfce, all of them properly installed and ...
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0answers
231 views

Patching fourcc code INZI

I am using Ubuntu 16.04 64 bit to try to capture RGB and Depth images from a Realsense SR300 depth camera. I have installed the appropriate SDK etc, and the camera is being recognised and producing ...
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0answers
459 views

make xrandr output on two monitors

My notebook has an HDMI connection to external monitor. I want have xrandr to pass parameters so that the image is displayed on both internal and external monitors, and when the external monitor is ...
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0answers
315 views

live555MediaServer run as daemon (CentOS 7)

I want run live555MediaServer as a daemon on CentOS 7. I create following startup script. live555.service (/usr/lib/systemd/system/live555.service) [Unit] Description=Live555 Media Server Requires=...
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1answer
1k views

Can't boot with Kernel Modesetting

I need to enable Kernel Modesetting in order for my video card to be used with the amdgpu driver, but I have this new Lenovo IdeaPad laptop that won't boot unless I boot the kernel with the nomodeset ...
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2answers
2k views

Updating OpenGL from 3.0 to 3.1

I need to upgrade my OpenGL version from 3.0 to 3.1. Stackexchange is full of postings that tackle specific situations, and it proved difficult for me to see the tree from the wood, not to mention to ...
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1answer
69 views

motion blue and black image on built in server - saved images are ok [closed]

I'm experimenting motion on my desktop, My webcam: Logitech, Inc. Webcam C270 Output Images and video are ok but the image on built in server aren't. They are like blue and black - almost ...
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1answer
27 views

What codecs are needed to be installed to support WordPress playback from local directory on a debian 8 vps [closed]

What codecs are needed to be installed to support WordPress video playback from local directory on a debian 8 vps? Because I have vps debian 8, with WordPress running and easy video player installed ...
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1answer
174 views

Create CBR TS file from MXF file

I am looking for a way to create CBR TS file from a high bitrate MXF input file. I have tried to use ffmpeg, but apparently it doesn't do a good job of creating CBR output file so right now I am a bit ...
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1answer
213 views

No sound on certain video files in Linux Mint (44100 Hz sample rate)

I am pretty new to the Linux environment. I have installed Mint 18.1, which is mostly used as HTPC (to watch movies on TV connected with HDMI cable). Everything works fine, except that it does not ...
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3answers
413 views

linux to linux screen streaming through wifi

** WHY AM I ASKING THIS ** I have a good powerful laptop at my job, but it has a really bad monitor, the company is getting me new one, but until then I just cannot work. My eyes hurt so bad. ...
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1answer
86 views

How detect playing video by ioctl?

Is it possible to detect video playing by ioctl in linux. Maybe detect decoding of the video file. How about this is working with flash player and html5 video? Can you provide some information how ...
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1answer
3k views

High CPU usage while playing a YouTube video

I have installed Linux Mint 18.2 Cinnamon (kernel: 4.10.0-32-generic) on my new ASUS UX430UA notebook. It has Intel Core i5-7200U, integrated graphics only - Intel HD Graphics 620 and 8 GB of ...
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0answers
954 views

Hardware video acceleration in VLC

I have not been able to get VLC to use VA-API on my machine and it's driving me insane! I'm running Arch Linux on a ASUS ZenBook UX305CA with Integrated Intel HD Graphics 515. I have installed libva-...
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0answers
123 views

Send /dev/video0 of local machine to a target machine's /dev/video0 [closed]

I want to pipe the stream on /dev/video0 on my local machine to a target machine's /dev/video0/. I am aware of this answer, however that one answers how to access the camera of a remote machine. ...
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0answers
25 views

How to record video of screen and annotate it same time in Mint?

I have latest Linux Mint and i would like to record video of my screen and my voice and same time draw arrows and write text to it easily. How i can do this? Thanks.
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1answer
4k views

FFMPEG - Merge two MP4 files

To merge two MP4 file, it's necessary to pass by .ts file. ffmpeg -i input1.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts input1.ts ffmpeg -i input2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts ...
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0answers
344 views

sub-scale=1 doesn't work in ~/.mpv/config

I am running mpv on Debian testing/buster hence running mpv 0.25.0 . I had asked a question about making subtitles bigger in Making subtitles (.srt) bigger or smaller with mpv and was told that if I ...
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1answer
39 views

Find all video files with a duration in a given interval from commandline

How can I find all video files with such that the duration is in a specific interval. For example find all video files with a duration between 20 and 40 minutes.
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0answers
829 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 ...
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0answers
802 views

How to get USB video device by connection?

I am working with an embedded Linux device (Raspberry Pi, Debian) with two identical USB cameras connected. The two cameras are attached on different physical location: one on front of our machine, ...