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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0
votes
1answer
224 views

Installing mesa with GLX TLS enabled not working

I'm trying to install Mesa3D for xorg in order to get video drivers working properly. I get errors such as .libs/es1api_libGLESv1_CM_la-entry.o: In function `x86_64_entry_start':entry.c:(.text+0x3): ...
6
votes
1answer
7k 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 ...
1
vote
1answer
77 views

Why does querying xrandr briefly freeze the screen?

Every time I run xrandr --query my screen freezes very briefly. It's enough to be jarring if I'm watching an animation or a video -- which sucks, because I have a script querying xrandr every 3 ...
1
vote
0answers
13 views

Can I change the X rotate the xf86-video-fbdev during execution?

Below is my /etc/X11/xorg.conf.d/1-fbdev.conf. /etc/X11/xorg.conf.d/1-fbdev.conf Section "Device" Identifier "LCD" Driver "fbdev" Option "fbdev" "/dev/fb0" Option "Rotate" "UD" EndSection ...
1
vote
1answer
52 views

Convert image based subtitle to text based subtitle inside MKV file

How do I convert a hdmv_pgs_subtitle (which is image based) to a text based subtitle in a MKV file? I have tried ffmpeg -i in.mkv -c:v copy -c:a copy -c:s mov_text out.mkv but that results with the ...
2
votes
1answer
831 views

azap from LinuxTV dvb-apps strange signal behavior with Hauppauge WinTV-HVR 950Q

What I want to do I have a Hauppauge WinTV-HVR 950Q USB-TV-Stick. I want to use this stick to successively tune to and read in a certain live TV stream. What I do I trigger a scan and save the scan ...
2
votes
3answers
3k views

Convert a video to a fixed screen size by cropping and resizing

I've tried to figure this out myself, but the myriad of options just baffles me. I want to use ideally either ffmpeg or mencoder (or something else, but those two I know I have working) to convert ...
4
votes
7answers
10k 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, ...
1
vote
0answers
28 views

No sound in HTML5 videos (Firefox/Chromium)

I use mageia, and I'm struggling a lot when I want to watch some videos on web in html5: the video runs fine, but the sound doesn't play. I've searched in web, and in most cases, the problem seems to ...
1
vote
2answers
48 views

Loop MP4 From Converted Animated Gif

How do I convert animated gifs to mp4s that loop? This command successfully converts the gifs to mp4s, but the loop doesn't appear to work: for i in *.gif; do ffmpeg -f gif -i "$i" -loop 0 ...
0
votes
0answers
59 views

Enable Xorg video output when monitor disconnected at startup

We have up-to-date Debian Jesse boxes configured with Xorg / lightdm / xfce4. They're set up to auto login and run some programs at startup. This normally works just fine. The problem is when there's ...
1
vote
1answer
1k views

Ffmpeg problems on centOS 5.8 64 bit

I did install ffmpeg with winff, unsuccessfully when I try converting avi to x264, it says I don't have it. When I try to convert mp4 to Xvid I get unknown encoder 'libxvid'. It's like nothing really ...
1
vote
0answers
18 views

Streaming realtime video

I'm trying to stream realtime video from gstreamer under Ubuntu to VLC under Windows. Gstreamer is started via script: v4l2src device=/dev/video0 ! video/x-raw,width=320,height=240,framerate=30/1 ! ...
3
votes
2answers
177 views

How to check if a video is completely downloaded?

I have a bunch of videos which I want to check if they are complete or not. Some of them may be downloaded partially, but they are not faulty. How can I efficiently check if these video are completely ...
1
vote
2answers
31 views

linux - show image on console / X11 [duplicate]

Is it possible to show an arbitrary image across the console / X11? In essence, I just want the video output to be the image. Is there a way to do that? I would want the console virtual terminals ...
1
vote
1answer
1k views

How to enable graphics acceleration for SIS 771/671 on Zorin OS 8 lite (lubuntu 13.10)

I'm new at linux. I'm strugling with getting things work properly on my first linux installation on old laptop. Anyone knows how can I check/test my 2d acceleration? See if it's on/off and working ...
0
votes
1answer
47 views

Live Streaming and Broadcast Video Server

I need some help as I am trying to setup a live stream broadcasting server something like Youtube Live Stream or Twich.tv that users can stream their webcam their desktop and so on. I have searched ...
1
vote
0answers
20 views

How to display a video on my lock-screen instead of a wallpaper?

I am using Fedora 22. Is there anyway to display a video from a url or from disk storage (preferably muted) on the lock screen? I use this tool to change my desktop wallpaper every now and then. It ...
3
votes
2answers
3k views

Playing a remote movie on the remote computer

I have two computers (a desktop and a laptop) running linux connected to my local area network. I like to ssh from my laptop over to my desktop and run programs there, and sometimes listen to music on ...
0
votes
1answer
29 views

How to activate the bumblebee driver?

I have Debian Jessie; I installed the bumblebee drivers for my video card nvidia geforce 720m. How do I activate the drivers and to use only his nvidia card? To install the drivers, I used the ...
2
votes
1answer
63 views

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

I don't even know what kind of information I should post here to help identify the problem, so I am just going to go for it and hope for a productive outcome…I am not sure if this is a systemd issue ...
1
vote
1answer
23 views

How can I run a script on resolution change?

I want to run a script when my current resolution changes, right now I have a sleep loop polling xrandr, but I would like to have my script run on some kind of resolution-change event instead. Is it ...
1
vote
0answers
12 views

Display driver ghosting pixels on linux but not on Windows

I recently bought an lcd panel for a raspberry pi display device I'm making. The pi outputs hdmi video to the display driver for the panel. The pi is outputting 1366x768 @ 60hz. The problem is about ...
3
votes
1answer
45 views

How to effectively draw on frames of a video

I used to use Camtasia on Windows for editing videos, specifically recorded screencasts. One thing this did well was give me the ability to draw simple annotations on top of the video, including ...
5
votes
5answers
3k views

How can I reverse a video clip?

OS is Debian 8. I have a file clip01.mp4 that I would like to reverse, so it plays backwards. Audio can be discarded or reversed as well, doesn't matter. Apparently ffmpeg is deprecated in favor of ...
1
vote
0answers
22 views

Splitting correctly avi file

I'm trying to split an avi file as follows. avconv -i file.avi -vcodec copy -acodec copy -ss 0 -t 10 out.avi and this works (It creates a chunk with first 10 seconds of the video). The problem is ...
0
votes
1answer
51 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 ...
0
votes
0answers
16 views

Is there a way to edit video buffer size in google chrome in linux?

Its easy to do in windows but how to do it in google-chrome in cent OS 7. NOTE :I think google-chrome here is not using adobe flash perhaps it does not even need it but still i can play videos.
0
votes
1answer
130 views

FFMpeg : GIF to MP4 conversion throws code error.

I am trying to convert a GIF to a MP4. I am getting an error while doing that with specific parameters. What am I doing wrong? Any help would be nice. I would like a mp4 video with high quality, size ...
3
votes
1answer
52 views

accelerated HTML5 video: what hardware is supported well by Linux?

After many, many, many failed attempts to get accelerated HTML5 video working on any hardware (tested about 5 machines) I came to the conclusion that accelerated HTML5 is something difficult under ...
2
votes
1answer
120 views

Linux/Ubuntu unable to resize film in vlc and mplayer

Tested with Ubuntu 15.10 and BackBox 4.5. Graphics card i530 cpu i7 6700k motherboard used in shuttle xpc sh170r6 I have an issue to scale films to any size with programs like vlc and mplayer. I ...
1
vote
2answers
30 views

How best to reencode video for lower-performance playback?

I have various video files as MKV, including some high-def (1080p) with FLAC audio. These can be played fine on a several-years-old PC with a mid-range graphics card (using mpv/ffmpeg), but when I ...
0
votes
1answer
47 views

How to download rtmp video stream on linux?

I want to download a video recorded today at 5-6 pm from the following earthcam: http://www.abbeyroad.com/crossing How can i download it in debian or ubuntu? Inspecting the source code i got the ...
0
votes
0answers
23 views

GMA500 video chip uses mode that monitor can't sync to (even text mode)

I have a new CentOS7 installation which starts fine (I see the Grub2 menu). If I disable RHGB I can even watch bootup to a point - then all video disappears. The OS is booting to runlevel 1 (text ...
1
vote
1answer
2k 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 ...
2
votes
2answers
61 views

Extract the thumbnail which is shown in Caja from a video

When I go to a folder with a video file in (flv, mp4, for example) in Caja, which is my File Explorer program in my version of Linux (Mint MATE), it has a little thumbnail graphic. Where does this ...
0
votes
1answer
30 views

Linux console with multiple video cards

I have an older desktop box with two independent video cards. When booting, the BIOS chooses one card and produces normal output there. The system runs a arch linux system. As soon as the kernel ...
35
votes
3answers
12k views

GIF screencasting; the UNIX way

To take a static screenshot of a selected part of my screen, I often use scrot with -s shot.png. This is great for adding illustrations to StackExchange posts. I even found this script to ...
0
votes
1answer
111 views

no video using webex with fedora 22 and firefox

I can connect into a webex presentation on my Fedora 22 x64 workstation with Firefox x64 but I can't see any video. I am using Firefox version 43.0.3 with the icedtea-web plugin version 4.6.2. I have ...
0
votes
0answers
22 views

How to solve random HDMI (external screen) / audio output issues in Linux Debian 8?

About half of the times I start up my Debian 8 machine sometimes goes wrong in the boot sequence (particularly in auto starting apps set in "autostart" I would say). I can say that because after a ...
0
votes
1answer
106 views

Can not do anything related to video in Fedora 23

I am using Fedora 23 (x86-64) Cinnamon in my Lenovo G40-80. I can open VLC but can not play any video. I can not use Skype's video caller either. If I open a video or call through Skype after showing ...
1
vote
2answers
51 views

Is it possible to play the VIDEO_TS DVD folder with a generic command (mpv)?

I want to use a command for mpv video player that would play the VIDEO_TS folder (which in the case of MPV means starting directly the main video of the DVD. The main advantage of this is that in ...
3
votes
1answer
179 views

How do I run webm video file in firefox using HTML5 on linux?

I am using apache server on linux and want to run a .webm video file. I have .webm video file which i am trying to run in firefox (V 12.0) using HTML5 but the browser is showing as "no video with ...
42
votes
1answer
76k views

How can I reduce a video's size with ffmpeg?

How can I use ffmpeg to reduce the size of a video by lowering the quality (as minimally as possible, naturally, but I need it to run on a mobile device that doesn't have much available space)? I ...
1
vote
0answers
17 views

linux - windows don't repaint unless stretched

I think a recent change to my kernel configuration is causing my video to be messed up with certain windows (chromium, firefox, libreoffice) or at least those are the ones I've used. The problem is ...
0
votes
0answers
56 views

Kabini Radeon HD 8330 on Linux mint 17.2 Rafaela jumpy video

I have a Zotec zbox with the afore mentioned graphics card and I am running Linux mint 17.2 cinnamon on this machine. I have fglrx drivers installed version 2:15.200-0ubuntu0.6 and for the most part ...
9
votes
3answers
14k views

How to convert a VOB file to avi?

I am trying to convert a VOB file copied from a DVD into an avi in Ubuntu 13.10. I tried dvdrip, which failed due to a frame count error or something. I tried acidrip as well, but it always choose an ...
0
votes
0answers
33 views

Capture screen and output to video device

I'm using linphone, I I'd like to share my screen instead of my webcam. Currently, it looks like linphone only supports reading video input from /dev/video using V4L, though I'll be happy to be ...
1
vote
0answers
47 views

Using mpv ASCII output with w3m

mpv is a video player that can output ASCII video (like mplayer2 and vlc, but with colors). I would like to use it with w3m, within w3m or showing a link to open it in another window using mpv. For ...
17
votes
3answers
75k views

How to set the resolution in text consoles (troubleshoot when any `vga=…` fails)

It is a common way to set the resolution of a text consoles (that are usually available by Ctrl-Alt-F1 thru Ctrl-Alt-F6) by using a vga=... kernel parameter. I'm using Ubuntu 10.04 Lucid, output of ...