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

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0
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1answer
107 views

No sound in .mp4 file converted with x264

Hello i am trying to convert some avi files to mp4 files to be able to use it with my chromecast via castplayer in Chronium. I tried with x264 converter, the conversion works but i have no sound in ...
0
votes
1answer
14 views

Why kdenlive is becoming grey when doing anything at all?

Ubuntu 15.4, I've opened kdenlive for the first time since few months to edit view videos for youtube, suddenly I'm trying to just preview a video recorded with a camera and everything is turning grey ...
3
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0answers
30 views

Cursor won't hide in full screen youtube video [closed]

I'm using ubuntu 15.04 and when i enter full screen on youtube video my cursor won't hide, it's annoying af. Any solution?
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0answers
54 views

Watching 4K videos is incredibly choppy and has graphical issues

I've bought a 4K video which I want to play. I tried playing it on both the default 'Videos' application, and VLC player. Both were incredibly choppy and had graphical issues such as this: Why ...
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0answers
30 views

ubuntu 14.04 no video playback, but audio seems fine

I am using Ubuntu 14.04 as my main OS. But now there seems to be a small issue. After booting, say 1 hr, if i tries to play some video via vlc or anything only sound comes but no video. To solve this ...
0
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1answer
59 views

Trying to make VLC/Quicktime stop but loop

Really hoping to make this possible in VLC (2.1.0) or Quicktime (10.4) at a Mac: Play (lets say) 5 films Each film should stop playing at the end Than by a so called hotkey the next film should ...
3
votes
0answers
27 views

Using a Video file as an Wallpaper [duplicate]

I'm currently runing Ubuntu 15.04, and I would love to be able to put a video file (currently in webm format, but can be converted if neccesary) as my wallpaper. I am in love with the DreamScene ...
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0answers
12 views

Manually set forward/backward time in videos application in Ubuntu?

In videos application in Ubuntu, the default forward time is 1min and default backward time is 15sec. How do I change these?
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0answers
61 views

Can't watch Netflix or Amazon Instant Video in Firefox Ubuntu 14.04 [duplicate]

I can use both in Chrome fine. But I recently switched to Firefox and would very much like to watch them there as well; however when I click to start a movie on Netlflix it redirects me to the page ...
0
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0answers
87 views

No decoder available for type 'video/x-msmpeg, msmpegversion=(int)42,

I am using QtMultimedia class in QML: http://doc.qt.io/qt-5/qml-qtmultimedia-video.html When I run the first example program shown in the above link, I get the following error: Warning: "No decoder ...
0
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0answers
78 views

Totem-Video Stuttering, lagging-Yes or Not

I already wrote about my problem with players, stuttering etc. So I decided to record videos with my phone camera on part of the movie when I think that the stutter/lag happens and uplouded the videos ...
1
vote
2answers
66 views

List the duration of each video file in a directory

I have a directory full of .MP4 video files. I would like to see a list that has the name of each file and its duration in minutes and seconds. Something like this: one.mp4 4:34 two.mp4 2:23 ...
3
votes
2answers
50 views

Forcing brightness increase

I'm a desktop user, and since my LCD screen died I have to use an old CRT screen that has some issues. I set its both contrast and brightess settings to 100%, but there's some stuff I still couldn't ...
1
vote
0answers
15 views

how to play video on one ubuntu and audio on another synchronously in the same WLAN

I want to watch video on one Ubuntu machine, and hear the sound on another. I tried PulseAudio as suggested in this post, but the delay was too long. Is there a solution that will let me watch the ...
0
votes
1answer
42 views

Unable to play videos after converting from Netbook 10.04 to Lubuntu 14.04

On my HP mini, I converted from my Netbook 10.04 (frown) to Lubuntu 14.04. I also installed lubuntu-restricted-extras and addons and I cannot play videos. I've tried VLC, changing the video output to ...
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0answers
59 views

Playing the recorded video with gstreamer in kdenlive and VLC failed

I have a gstreamer pipeline to record Video+Audio from a Webcam as below: gst-launch-1.0 v4l2src device=/dev/video1 ! 'image/jpeg, width=1920, height=1080, framerate=30/1' \ ! jpegparse ! jpegdec ! ...
0
votes
1answer
318 views

Is there a kde dolphin thumbnail creator for video files that would use built-in thumbnails?

There are some video thumbnailers for Dolphin: kffmpegthumbnailer, ffmpegthumbnailer, etc. However, all of them just extract random frame from the video even if there is a built-in thumbnail in video ...
1
vote
1answer
43 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 ...
1
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0answers
112 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 ...
0
votes
1answer
388 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 ...
1
vote
1answer
219 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 ...
0
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0answers
131 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
35 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; ...
0
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0answers
62 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 ...
1
vote
1answer
81 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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0answers
107 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. ...
1
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0answers
35 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 ...
0
votes
0answers
67 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 ...
0
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0answers
32 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 ...
0
votes
2answers
85 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 ...
0
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0answers
106 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\ ! ...
0
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0answers
10 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 ...
0
votes
1answer
89 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
votes
1answer
72 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
votes
1answer
100 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 ...
0
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0answers
87 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 ...
0
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0answers
47 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 ...
0
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0answers
50 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 ...
0
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0answers
29 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 ...
0
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0answers
125 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
340 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?
0
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0answers
79 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: ...
1
vote
2answers
1k views

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

Morning all 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 ...
0
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0answers
39 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.
0
votes
1answer
42 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. ...
0
votes
1answer
61 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 ...
0
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0answers
140 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 ...
0
votes
0answers
26 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 ...
0
votes
0answers
78 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 ...
0
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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 ...