Debian Multimedia :: Way To Rotate Videos But Preserve Quality
May 17, 2015
i am trying to rotate some mp4 videos taken from my mobile phone. i do need to rotate them by 90 degrees.i have tried mencoder VIDEO0029.mp4 -o output.mp4 -vf rotate=1 -oac pcm copy -ovc lavc but it drops the quality A LOT.is there a way to rotate the videos but preserve the quality?
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Feb 24, 2010
I am trying to use ffmpeg to split a number of videos of different types (WMV, MPG, AVI). I do not want to change anything else, just split them into smaller chunks. The video is split, but the quality of the output file is terrible. I would describe it as "blocky" (I think the correct term is "pixelated"). When I make the player (KMPlayer) much smaller the problem naturally goes away.
The command I am using:
ffmpeg -i original_vid.wmv -ss 00:00:00 -t 00:05:00 first_vid.wmv
The output:
FFmpeg version SVN-r19352-4:0.5+svn20090706-2ubuntu2, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --extra-version=4:0.5+svn20090706-2ubuntu2 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis
[Code]....
"Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
Seems to mean something, but I couldn't find anything saying that this is the problem or what O should do to correct it.
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May 24, 2010
I have a lot of old video footage around that, I am ashamed to say, I encoded with heavily proprietary codecs like DivX and such during the dark ages (aka. the Windows Times).
Now, I would like to redeem myself from the mistakes of my past by re-encoding everything into open formats.
Since those videos are often not of the best quality (poor camera, poor codecs, poor knowledge), I do not want to loose more quality in the process.
So, to avoid any more mistakes in the future, I would be glad if someone could answer me some of the following questions:
1. Is it even possible to re-encode those movies into something like x264/vp8/theora without loosing any more quality?
2. What tools should I use for that? Command line is actually preferred.
3. What would be the most desirable format to have? I'm thinking about x264 in Martroska with ogg Auto. Is there anything better suited?
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Feb 27, 2011
i got the weirdest flash player problem on the planet. so, here's what the problem is. whenever i play low quality 360p flash videos in fullscreen in firefox, i get horrible performance and it eats up all the cpu resources, as compared to 1080p fullscreen video, which is smoooooooth and doesn't take up as many resources as low quality videos. why is that? i am using flash 10.2 beta 64 bit and have 64 bit ubuntu, but the problem persisted even on the stock flash player.
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Apr 7, 2010
I just got my hands on an MSI E7235-295US and slapped Ubuntu 9.10 on it. So far everything's worked great, but I am beginning to get a bit concerned about my sound quality. The laptop itself has 5 speakers + subwoofer so I should be getting 5.1 sound, if I understand things correctly (the newegg link should provide more details) and when I play anything (music, flash, videos, games, etc...) the sound comes out 'muffled'. Almost as if it is in a concert hall, maybe. I initially wondered if the problem is related to the 5 speakers and if the sound is initially only setup for two. If that is the case, nothing I've done has seemed to made any real difference. I've tried changing the master/pci channels, but it only hides it a little, and doesn't solve the problem.
This seemed to be on the right track, but the laptop is still really new and not listed in the alsa file.
Some info:
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
Subsystem: Micro-Star International Co., Ltd. Device 7220
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at f8ef8000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
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Feb 11, 2011
I'm searching for a tutorial on how to convert my videos (AVI, WMV and MKV formats) to a format that offers both good quality and small size.The audio part should be 128 kbit/s mp3 lame.I'm using Fedora 14 with an rpmfusion repo. It would be especially nice to be able to batch-convert the AVIs.
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Feb 26, 2011
I have a dual Monitor Setup, both SXGA LCDs, one rotated left. With kernels and Xservers available from debian making settings appropriate kills X and apparently leaves modesetting and keyboard missconfigured - monitors say: no signal and it is not possible to switch to any VT until sysrq-unraw (alt-print-r) is pressed, which makes the system responding to keyboard, but still leaves the screens blank. Restarting the display manager sets a working mode with both screens showing the same.
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Feb 13, 2010
I am using Lenny i386 and amd64, have installed flash 10 from abode but cannot watch TED videos. They are working though with other resent distros like mint, mepis, community remix F12,1. Does anybody know what codecs are needed to enable their playback? Unfortunately I could not find anything relative by searching under TED in this forum.
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Jul 21, 2011
vlc 1.1.3
When I try to watch avi videoclips taken with my digital camera (Casio Exilim), sound is ok but video screen only shows filename and green background.
Files are ok, mplayer shows them without errors. Vlc shows other avis than shooted with my camera.
Below cli output of vlc:
vlc cimg4938.avi
VLC media player 1.1.3 The Luggage (revision exported)
Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")
Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")
Warning: call to signal(13, 0x1)
[Code].....
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Jan 17, 2015
I am trying to setup a media server running Debian 7.8 and the minidlna 1.0.24. My TV is a Toshiba 50L7300UC and can play music and show images via the DLNA. It will play .mkv videos too, but when I try to play an .mp4 video it says "Unsupported file". If I put the same .mp4 video onto a USB and plug that into the TV, the TV plays it no problem.
When testing streaming to my phone, everything works (music, pictures, MKV and MP4 videos).
How I can get the MP4 videos to stream to my TV?
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May 17, 2010
I recently did a fresh Debian Squeeze install.The problem I have is that I cannot play any video. I tried opening mpg, flv and mov files with totem and vlc and they crash instantly.I think I have installed the packages (codecs, players, etc) required for playing videos.
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Apr 9, 2011
I'm running 64-bit Debian testing Xfce and can't get Thunar to generate thumbnails for video-files in ogg-format. It works for avi, mp4, flv, etc. I have thunar-thumbnailer and ffmpegthumbnailer installed.
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Sep 7, 2009
how can I rotate the pen when I rotate the screen, and I would like to share this knowledge to other people who may have the same problem I had.
I have a tablet fujitsu-siemens t5010 with installed the wacum packages by default, and the pen was working, but couldn't rotate with xsetwacom command.
In Fedora 10, most guides refer to the wacom device as "stylus" which doesn't work on Fedora 11. I run command " $ xinput list " and I found the line
"PnP Device (FUJ02e5) eraser"id=3[XExtensionKeyboard]
and some lines before there is:
"PnP Device (FUJ02e5)"id=2[XExtensionKeyboard]
^^^^^^ this is the name of the device xsetwacom command needs! ^^^^^^^
I wrote first the line with the eraser cause I suppose that even someone has different wacom model, the eraser will be easy to find by grep command ( $ xinput list | grep -i eraser ), and common in most configures.
now , the edited script I use becomes like this:
#!/bin/sh
if [ $1 == 'normal' ]
then
xrandr -o normal
xsetwacom set "PnP Device (FUJ02e5)" rotate 0
[Code].....
It would be awesome if it chat could happened automatically , simply by rotating the screen, like it happens on Vista. I'll try to find out any solution and update this post if I make it !
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May 7, 2015
I went to mozilla, installed the tar ball package into /opt/, then double clicked on the shell script named firefox inside the /opt/firefox folder.I go to a few sites that stream videos kind of in a way YouTube does as well. So when I go to play the file which is typically in a jwplayer. Firefox thinks I am trying to open to save the file? It attempts to play the video inside dragonplayer, I just want it to run the video. I have also uninstsalled IceWeasel, running KDE shell. x64.
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Apr 19, 2016
I am using chrome Version 50.0.2661.75 (64-bit) running on Debian (Gnome).
I am having the following problem, since yesterday every time I want to play a video (for ex [URL]watch?v=UF8uR6Z6KLc) The music, logo in the video and functions work but the video doesn't play. I reinstalled Chrome, clean all the data, disable all the plugins, I tried as incognito and several other options and it doesn't work, before yesterday it was working (yesterday I updated all Debians packages).
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Nov 15, 2014
Is it normal that you can't watch YouTube videos after a fresh install? It comes with something called GNU Gnash but it doesn't work at all in Iceweasel.
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Jul 6, 2015
How can I play and edit my iphone videos? They are .mov files. Is there software to do this fairly easily?
I am running Debian Jessie 8 with Xfce.
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Sep 18, 2015
What I mean by black screen is that whenever I view a video or if there is video content anywhere on the page, my whole monitor goes black for around 3 seconds then plays the video content.
I am running Jessie 8.2 by the way.
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Nov 5, 2015
I noticed that Firefox won't play HTML5 videos, or better said, the sites always return a Flash video instead the HTML5 version. So either I install Flash or I can't play videos.
However, with Iceweasel I don't have this problem. The sites always load with a HTML5 video instead of the Flash version. So no need to install Flash.
I checked plugins, extensions and even the user-agent string to see if there is some indication Iceweasel is using and Firefox don't, but I don't see anything special, so... how is it possible that using Iceweasel the sites load HTML5 video, but using Firefox the sites tend to use Flash?
I know that in Debian there is no need of installing Firefox, but right now I'm trying other distros and that's where I noticed about this problem. Then switched to my Debian installation and installed Firefox, and checked the same happens in Debian. Just for the record, in Windows it doesn't need Flash either.
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Nov 20, 2015
Iceweasel, Konqueror, makes no difference. Embedded flash videos make them crash every time. I had to install Flash Control on Iceweasel just to make it usable.
[pid 9417] --- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL, si_value={int=1851877730, ptr=0x6e616962}} ---
[pid 9520] <... close resumed> ) = ? <unavailable>
[pid 9446] +++ killed by SIGALRM +++
[pid 9444] +++ killed by SIGALRM +++
[pid 9520] +++ killed by SIGALRM +++
[pid 9447] +++ killed by SIGALRM +++
+++ killed by SIGALRM +++
The kicker is I can't recall ever installing flash support in the first place.
I'm bitterly regretting the upgrade to 8.2. It's just one damn thing after another.
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Jul 8, 2011
ubuntu 11.04. How do you rotate the console?
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Aug 2, 2015
I am running debian linux wheezy, and recently, all of a sudden, all videos in my iceweasel browser have been refusing to play videos of any kind at full volume. I am, however, able to download the video and play it at full volume on vlc player or sytem video player.Why iceweasel is acting this way?
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Jun 15, 2011
I have two video files taken with my phone, but unfortunately they are on their sides.
I was messing around with vlc, and found in the filters option menu, a setting to rotate the video 90 degrees, which is just what I was looking for.... BUT it won't let me save this (I guess you have to re-encode the whole file)
What is the easiest way to rotate video files (.3gp) and keep it in that state, without losing loads of quality?
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Dec 2, 2010
I need to make an ISO9660 file from a directory, but some of the files have names that are logner than 37 characters. I could not find a way to get the long names preserved.
I've tried various ways but in vain. "genisoimage -J -R -U -max-iso9660-names -o tst.iso cdroot" gets most close to the end, but not close enough!
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Aug 21, 2010
I have been tooling around with different way of getting our local Debian network mirror back up and running with different various scripts. I have tried apt-mirror which was a breeze to setup and run, anonftpsync again super easy to get rolling.
My question is there a way to make sure our Sarge distro doesn't get deleted from the mirror? A filtering command for rsync possibly?
I started to go over the script for the ftpsync (debian recommended!) and to be honest it seems way over my head due to lack of documentation that I have been able to find.
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Apr 16, 2011
Okay, so I may sound like an idiot for asking this question (whether the answer is obvious or it is not possible at all) but, how do I rotate text so that it is upside-down in Open Office Draw? I am making a Birthday Card....
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Mar 21, 2011
How does Debian preserve/merge config file information during software upgrades? My google searches left me a little unclear on this point. Also (if you happen to know) does Ubuntu use the same method?
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Jul 24, 2010
I'm trying to get the best performance/quality on my my 10.04 box and i have a few questions regarding 'sync to vblank'. My first question : I see 'sync to vblank' in 3 different locations.
- In compiz display settings
- In NVidia XVideo settings
- In NVidia OpenGLX settings
What is the difference between the 3 ?
Second question : I used to have problems watching movies where the picture seemed to be cut in half ( i'm not a native english speaker so i don't know the technical term). After reading some forums, i enabled sync to vblank everywhere i saw it. That solved the movie problem. But maybe that was overkill ?
So i did some benchmarking and noticed the following :
When i disable 'sync to vblank' in compiz my compiz benchmark drops from 60 to 30. But then my movies look worse.When i disable 'sync to vblank' in NVidia OpenGlx my GlxGears framerate jumps from 300 to 36000.I didn't notice anything when changing vsync in the NVidia XVideo setting. System specs below.
Ubuntu 10.04 64b
Nvidia GT 230 1536MB
NVIDIA Driver Version : 195.36.24
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Apr 3, 2011
The quality of sound I am getting is very poor with lots of noises.I'm using openSUSE 11.4 on a DELL Inspiron 6400, and the sound is "82801G (ICH7 Family) High Definition Audio Controller".I have tried removing pulseaudio but it did not change anything.I had no problem with the sound on 11.2 and the quality of sound is normal on Windows.
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Sep 19, 2010
I am using ubuntu version Ubuntu 8.04 , it is observed that the video quality is poor as compared to windows os i am not sure it is driver problem or something different, below are detail of my system
CPU : 2.6 Mhz
RAM :1024 MB
board : Intel 845 chipset
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