Questions related to video playback and recording in Ubuntu. For questions about video cards, use "graphics".

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1answer
100 views

Can not play video, can not figure out why

I have this video film that I can not play, and I try to figure out why, on ouput of mediainfo -l I get this: Complete name : 101064-HD-FR.mp4 Format ...
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0answers
186 views

Capturing an “HD” video from Webcam using gstreamer pipeline is failed

I have a simple pipeline which is supposed to capture a video stream (+audio) from a webcam in JPEG and put it into a .mts container, but at the end when I try to play the file (using ffplay) or ...
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1answer
489 views

Error when installing desktopvideo 10.4.3 on Ubuntu 14.04

I've got a new Blackmagic Decklink 4k extreme video capture card. I'm trying to get it run on a Dell T5810 with an Intel Xeon E5-1620 CPU and Ubuntu 14.04 running on it. I've tried to install ...
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1answer
292 views

Why won't YouTube in Firefox prevent the screensaver?

I've recently switched from Windows 7 to Ubuntu MATE 15.04, but I'm experiencing some problems with the screensaver (or power saver?), while playing full screen videos on YouTube using the latest ...
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0answers
246 views

Disable Screenlock while in full screen video watching

I've set up Sceenlock after 3 minutes of inactivity through 'Brightness and Lock' on Ubuntu 12.04. So, the sceen turns off as programmed which is quite normal. Now, I want it doesn't turn off when I ...
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0answers
47 views

Lower sound volume after encoding with FFMPEG

I am encoding about 350GB of my video files to H.265 format (for efficient file size) using FFMPEG with this command: IFS=$'\n'; for video in *; do ffmpeg -i $video -c:a copy -c:v libx265 $video.mp4; ...
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80 views

Integrated Web Camera Driver Missing

I'm trying to set up my laptop's web camera and can't seem to figure out how. I've tried both with cheese and with Skype to open it and no luck. As far as I can tell it's a driver problem; the camera ...
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1answer
217 views

Firefox: ogv and webm video format dont fire

I have problem with ogv and webm video format in my firefox - dont work. Do you have any suggestion why ? In chrome all works nice and smoth. On windows all works fine.
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160 views

How to force Firefox to prefer WebM over MP4 when both are available in a <video> tag?

There is some problem with MP4 playback on my installation and WebM files are played perfectly. But if the first source in a <video> tag on a page is mp4 it's getting selected automatically. ...
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0answers
45 views

Video stabiilisation using “Warp Stabiliser”

I recently shot some very shaky video footage using my DSLR camera. http://vid1377.photobucket.com/albums/ah44/hellocatfood/MVI_3154_zps6fri0edh.mp4 I usually use a tripod for stability but the ...
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0answers
149 views

Digikam cannot play mp4 video in slideshow

With Kubuntu 15.04 and Digikam 4.13.0, Libkipi 2.2.0, videos can be viewed as preview (click in thumbnail), but not in a slideshow. During the slideshow, only a black screen is shown instead of the ...
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0answers
70 views

Can't record in high quality

I finally gave up on SimpleScreenRecorder for many reasons, and I'm now trying to use OBS. It seems like it works much better, but I can't figure out how to configure it correctly. There are very few ...
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2answers
116 views

Totem & VLC not working [closed]

Totem (or "Videos") & VLC media player is not working, they both refuse to play any videos of any format i tried. By "Refuse" i mean crashing, not responding, or even just plain old skipping the ...
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0answers
182 views

Rotate a Video in gstreamer pipeline

I have this pipeline to record from two webcams simultaneously: gst-launch-1.0 -v v4l2src device=/dev/video0 num-buffers=300\ ! "video/x-raw,width=800,height=600,framerate=30/1" ! videorate\ ! "video/...
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0answers
11 views

Video Disables Keyboard

When I open a video in Totem, the keyboard is disabled, as well as the right mouse button and some actions with the left mouse button. Does anyone know what the problem may be? Debugging it is ...
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1answer
118 views

Just installed Ubuntu 14.04 and it is extremely slow, painfully so

I just installed Ubuntu 14.04 (32 bit, as that was recommended for 2gb or RAM or less) on a Acer Veriton N281G D425 Intel Atom 1.8GHz 2GB RAM and a 500GB HDD. This is a small box computer that I got ...
3
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1answer
74 views

How to mostly automate authoring video dvds?

How to take a few hundred video files of various formats and put them on dvds, with a dvd menu item for each video file? Automated to the extend that doing any action for each and every file is too ...
2
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1answer
178 views

Ubuntu 14.04 LTS (Trusty Tahr) won't output HDMI or boot

I have a custom PC with Windows 10 installed. I installed Ubuntu 14.04 LTS into dualboot three days ago, but I'm unable to boot into it. When I start up the computer the GRUB bootloader shows up and ...
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0answers
169 views

SMPlayer image tearing, slow

In smplayer I have image tearing problems. Both with nouveau and nvidia. the video output it's xv when I change the the video output to vdpau (on nvidia drivers) beside image tearing the player works ...
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0answers
63 views

Image tearing (FF+VLC)

I noticed a strange problem. If I run FF with youtube and playing a video in background (360p,720) and play a video(dvdrip, 1080p x264 mkv,1080p x264 mp4) in Vlc I notice image tearing, or something ...
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0answers
92 views

Is there a transcoding script for Mythbuntu recordings to mp4/mkv etc?

The scripts listed on the mythtv wiki for seamlessly transcoding live TV recordings to a compressed format such as mp4 no longer seem to work with mythtv 0.27 or later. There is also the issue of ...
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0answers
40 views

webcam changes the color of video depending to the surrounding light conditions in a weird way

I am using Kubuntu 14.04 LTS on a Thinkpad T410 Whenever I am using video chat clients like Skype or Jitsi the video tends to change its colour depending on the sourrounding light. Outside with the ...
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0answers
169 views

Upgraded to Ubuntu 15.04 machine is extremely slow

I recently upgraded to Ubuntu 15.04 Vivid Vervet from Utopic Unicorn. I'm a bit of a noob here. My machine was running great before the upgrade, however now, everything has slowed to a crawl. browsing ...
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0answers
384 views

Can't play full hd video in youtube

I have ubuntu 14.04 and I can't reproduce full HD videos in youtube(mozilla and google chrome), only HD, How can I fix this problem?
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127 views

Can't change resolution and slow video

I have a very old desktop which we use for music and youtube etc. We installed linux ubuntu 14.04 LTS instead of windows, slightly improving speed except for video. My configuration: rhnop@rhnop-...
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2answers
4k views

Merge multiple mp4 files into a single video via the terminal [duplicate]

I am trying to concatenate a directory full of .mp4 files into a single video through the terminal. I have found plenty of methods that say they can do this but either require FFmpeg (which, to the ...
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0answers
66 views

Is there any tool available for AV Sync Verification for video files?

I have a bunch of video files, I want to check their audio and video are in synchronization. I thought of writing a script for same. But I'm not getting proper base how to do that.
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63 views

Cinellerra rendering videos with thick green line under them

As far as I can tell, the entire video is shifted up about 15 pixels, so the top of it is cut off and the bottom is is just a green bar. I am using cinelerra-5.0-ubuntu-14.04.1-x86_64-20150817-static. ...
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1answer
146 views

Cheese not detecting webcam

I'm trying to record video with a webcam I bought (Logitech C170), looks like Cheese doesn't detect it). It is wierd cause other apps like Camorama detect the webcam correctly. Camorama only takes ...
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0answers
194 views

Default Video Player in 15.04 doesn't play DVDs

What's strange about it is every other video player WILL play DVDs. It's just the default video application that won't... If I double click on the DVD icon in the player's initial window, it will ...
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1answer
48 views

MKV seek broken after re-encoding

I have a few MKV files that need the title to be changed. My searching has led me to understand that re-encoding is the the easiest way to do so. mediainfo on one of the files General Unique ID ...
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0answers
129 views

Distorted playback of x265 converted via Handbrake in totem

I am experiencing a problem in playing x265/HEVC videos on totem player, but only the ones which I converted via Handbrake Converter. But the same video plays just fine on VLC. On totem the audio ...
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0answers
15 views

After using recording software, all media players crash

After using Hydrogen or Ardour, I cannot use a media player. I have to shut down my PC and turn it back on, in order to listen to music or play videos. I cannot play the tracks I've created nor any ...
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0answers
59 views

Lubuntu 15.04 Issue - Videos go too slow

I use an old desktop computer, BIOSTAR P4M800-M7A motherboard, with a dual core Intel P4 64-bit, at 3 GHZ, CPU, with 2GB RAM. I use Lubuntu 15.04, 64 bit, with all the upgrades suggested by the system....
1
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1answer
197 views

avconv: Saving MP4 Process Hangs

not entirely sure if I should post this on askubuntu or stackoverflow. I'm setting up a website where users can upload videos and share them. I'm using avconv to reduce the video size and save it ...
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0answers
54 views

ODP to SWF to OGG Animation Problem

I created a small .odp file containing some simple text animations using LibreOffice that I exported to SWF. Now I want to use the text animation in Pitivi to add a short soundtrack to the animation (...
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2answers
118 views

Video codec for making home videos smaller?

Complete video beginner here. I have a bunch of old videos in multiple formats and codecs - like birthday videos, undergrad random captures etc. There is a large number of files that amount to ~25GB ...
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0answers
54 views

My ubuntu freezes when I switch workspaces with a full screen video playing

One cool thing about my mac is I can switch workspaces while having a full screen YouTube video running. On my Ubuntu machine it causes the video to freeze. Sometimes it works (with a little ...
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0answers
1k views

Why video played by VLC media player are blurred compared to MPV media player?

Image 1 is VLC media player image and Image 2 is MPV media player image respectively. Details as follows: Video Details: Format: x264 1080p .mkv File size: 10.5 GB VLC media player ...
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0answers
122 views

Unable to convert to x264 mkv

I want to convert an mp4 file to mkv with the video format as x264 and audio as libmp3lame Mediainfo for the file gives: General Complete name : file_in.mp4 Format ...
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0answers
102 views

Dpi/Screen Resol. Test-Case [Ubuntu-Desktop] (seemed to be better with Nouveau) — Xorg Display Server vs. Proprietary Nvidia .Xorg Drivers

When I first installed Ubuntu I noticed that the plymouth display screen (command-line initialization display or w.e.) Was printing lines of high-dpi text, and just as well, the desktop environment ...
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0answers
75 views

Google Hangouts Video Playback Performance

I've been trying to use Google Hangouts for video chat on my Ubuntu machines but the performance has been atrocious. My laptop is a Galago UltraPro from System 76 with an i7 and 16gb of RAM. My ...
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1answer
46 views

requirements and settings to be able to stream a larger video(20 minutes over 200 meg, mp4) on a ubuntu server running apache2, php5.4 and fastcgi?

I've got it working on smaller videos using owncloud , Ubuntu 14.04, apache2 fast CGI, etc. It works on a 1 minute video but if it is longer than 2 minutes it has to download the whole file before it ...
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0answers
191 views

How to download a video from rtmp protocol behind proxy using rtmpdump?

I am trying to download video from rtmp://flash.dce.harvard.edu/bounce/mp4:2015/01/14328/L01/14328-20140902-L01-4-h264-av1248-16x9-852x480.mp4. My college internet runs behing proxy, Is there a way I ...
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34 views

what can I use to watch videos on the web other then flash

The flash player is getting slow lag all the time volume control is in the middle of the video and don't work. I'm tired of trying to fix it and just want to use something that works better and works ...
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0answers
26 views

Player that can make image sequences?

I want to make a sequence of images from a video (like when I want to make a gif), but I can't find a media player that can do it. I tried some apps like QGifer or Gimp GAP plugin, but none of those ...
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0answers
34 views

Video recording/playback problems

I have a couple problems: 1. Whenever I put a YouTube video into fullscreen, Unity shows up on top. 2. Whenever I try to do a screen recording my screen turns black, irreversibly with the exception of ...
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0answers
25 views

How to flip video in oneshot video editor (ubuntu 15.04)

How do flip video in the one shot video editor I'm new to one shot video editor so I was wandering if anyone can help me here.
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0answers
94 views

Bad sound and video quality on World of Tanks (Through WINE)

I have installed World of Tanks using Play on Linux and the installation was successful. When I enter the game (apart from the longer than expected loading times), the sound quality is poor (i.e. ...
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0answers
158 views

avconv Creating Corrupt (0 KB) Video Files

EDIT: I have seen this question: avconv creates zero byte file while trying to downsample mp4 video Unfortunately, it's not the same problem. I'm trying to use avconv in conjunction with a website on ...