I want to take consecutive screenshots of a video using command line operations but I can't seem to find accurate documentation on different websites.Does anyone know how to do this using vlc, totem or another program?I've used ffmpeg as well, but then reencodes and splits the video file. I just want to take consecutive screenshots.
View 7 Repliesinstall imagemagick python, and pygtk.
Code:
sudo apt-get install imagemagick python pygtk
Now save the following script somewhere as imgclip.py. This is a simple python script which takes an image file and puts it in the gnome-clipboard.
Code:
#! /usr/bin/python
import pygtk
pygtk.require('2.0')
[code]...
I know in Fedora one can take screenshots during actual installation of the OS with Shift+Printscreen keys on the keyboard and then can access them as root in the folder /root/anaconda-screenshots. So how do I do the same while installing Ubuntu?
View 2 Replies View RelatedI noticed that in screenshots the mouse cursor is included by default, but now I want to take some screenshots without it, how can I do that?
View 3 Replies View RelatedI have an issue with crontab that I can't resolve even though I searched the web like crazy. I tried to create a new cron job for taking a screenshot automatically every minute with scrot using "crontab -e" like so...
Code:
* * * * * /usr/bin/scrot ~/screenshots/screen\%G-\%T.png > ~/log.txt
when I run it in my shell it does work fine and it seems to run with cron also because the log.txt file is modified every minute, however when I run it through cron the screenshots don't appear in the screenshots directory and nowhere else either.
Other jobs in the same crontab run very well. It doesn't seem to be a PATH issue because the paths are complete.
I wanted to share this nifty technique I came across for capturing video using the command line. The problem: I have a bunch of old VHS tapes (remember those...?) and need to get them digitized. I have a VCR, and a Dazzle Hollywood DV Bridge which captures video to DV over Firewire (IEEE1394). I first tried using Final Cut Pro, but it wouldn't capture, perhaps because it expects a controllable DV camera, and the Dazzle isn't a DVC device. I then tried my other favorite video editing app, Kdenlive, but it seemed to have the same problem.
I took a quick stab at the other common editors in the repositories (Kino, Openshot, etc.), but no luck with any of them. Then I remembered the dvgrab command, and gave that a shot and it worked, giving me a nice .dv file. However, DV makes pretty big files, which I wanted to compress down to something more manageable. Since I was going to be digitizing hours and hours of tapes, it would be great if I could compress while capturing. A little more googling and I had the answer - you can pipe dvgrab directly into ffmpeg! Here's the command:
Code:
dvgrab -format dv1 - | ffmpeg -f dv -i - -b 2000k -ab 512k -y output.mov
the first part starts the capture, in DV1 format, and outputs it to a pipe file. usually you give dvgrab a filename, like
Code:
dvgrab -format dv1 capture.dv
the second part does the encoding:
-f dv: use DV format
-i -: input from the pipe
-b 2000k: video encoding bitrate of 2000k/sec, high quality
-ab 512k: audio encoding bitrate
-y: overwrite file if it exists
I didn't set the codec explicitly, for Quicktime it defaults to MPEG4. This worked great, capturing a 2-hour tape into a high-quality quicktime around 2GB. But I also wanted to be able to view the capture while it was going. Since I left the field monitors and audio splitters at the office, I had to figure out how to do this in software. Turns out that the "tee" command does exactly what I needed - the shell never ceases to amaze! Here's the full command:
Code:
dvgrab -format dv1 - | tee >(ffmpeg -f dv -i - -b 2000k -ab 512k output.mov) >(playdv --disable-audio --no-mmap)
tee uses the
Code:
>(command)
syntax to pipe simultaneously to multiple processes. The only thing that didn't work was audio playback, which was choppy and introduced errors in the capture file. I think a little tweaking with the capture rates could fix that.
Is there a command line utility to tell me about what's inside a video file? Say I have a .mpg file. I want to know about the video stream and the various audio streams, the codec used for the video stream, the bitrate of the video stream, and so on.
View 5 Replies View RelatedI'm having a problem with my mail. When I send mail, it takes a long time for the send to complete.In the below, datestamp is just a simple script to put in a no-white-space date/time stamp.
Code:
$ datestamp ; mail woodnt; datestamp
02-05-10@193844
[code]....
how to run a shell script taking command line arguments in a jsp page.
View 1 Replies View RelatedI like to make tutorials on several different things, and since I'm a ubuntu user now, I found Record my Desktop. The thing is, When I stop the video, the encoder takes FOREVER! I left it there for over 5 minutes and it's still at 0%.
View 1 Replies View RelatedI want to practice some video casting - just using the webcam for now - I tried Cheese but got real choppy, slow video - is there another program that would work better on F12 ?
Also any ideas on how to "cut in" some screenshots ? I expect to use kino or kdenlive for any editing.
Does anybody know how to get attributes for a video file from the command line? For instance I'd like to get the video file running time. I've looked all over and I can't find out how to do this; the "file" command shows some data but not running time. I'm sure there has to be a way.
View 2 Replies View RelatedI'm trying to install Ubuntu Desktop 10.10 on an Intel Atom mainboard (Intel D945GCLF2) with CRT that has been running Ubuntu 9.x previously.
Both, Desktop live CD / installer and alternate install CD cause the screen to go black (and the status LED blinks).
I was able to get a bit further into the boot process with nomodeset as parameter with the Live CD, unfortunately I can't pass GRUB any parameters now that I have used the alternate Install CD by pressing 'e', it just boots.
So now I have Ubuntu installed, I get a terminal with CTRL-ALT-F1 but I don't know what I need to do now or how to adjust resolution or video settings from command line.
I've installed Ubuntu 9.10 and the prime reason for giving it a go is due to the media center capability with apps such as Moovida and LinuxMce.
Unfortunately during video playback [either divx or flash] there appears to be a random line or lines which flickers on the screen when the video is in fullscreen mode.
I'm using an ATI x1900 video card and have tried using both Tote and VLC, and I have also tried installing the fglrx.
But, both with and without flgrx installed, under the section 'Device' in xorg.conf it says that the driver is 'vesa'.
I don't know how to disable the default ATI driver to enable fglrx, or whether I am going off on completely the wrong tanget and should be looking at something else.
Or is there better support for my type of card in Ubuntu 10 as I don't want to go back to Ubuntu 8 which is the last supported version of the os that ATI developed a driver for my card.
Is there a way to take a Screenshot with keyboard shortcuts?
View 1 Replies View Relatedi've gotten my fedora 12 to the point where i can run python3 scripts from command line and can call up python 2.6.2 idle with the command 'idle' from command line. what command will call up python3 (3.1.2 to be exact) idle?
View 5 Replies View RelatedEverything is plain and simple. I want to know what's the least painful way to control vlc from local command line while having GUI as well?
I would like to e.g. use something like "vlc --pause" in one of my bash scripts to pause music if something hapens. So rc interface is useless, is it not?
not making a thorough search on this as the irrelevance of results is beneath me... Well actually I have made it but it was a while ago and to no avail since the new vlc shipped with karmic got rid of the old http interface which allowed to do this just by using wget on an url....
Ubuntu 9.10 (Karmic Koala) 64 bitlaptop Asus f5n vidio: GeForce 7000MI try to remove piton2.6, but system freeze, after these ubuntu show massage (after reboot)"Ubuntu is running in low-grahics mode our screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself"I press "ok"and give me next list of options"run ubuntu in low-graphics mode for just one session" -- system freeze "regonfigure graphics" -- no resultI try to reinstall graphic driver "nvidia-glx-185" -- no result
View 3 Replies View Relatedyou longed to listen to your favorite sirius XM satellite radio without the annoying popup every 90ish minutes. And if you were like me, you missed sipie, an application that allowed you to stream sirius via a command line. Since sipie has been flakey, some people have decided to start a new project on GITHUB, called pyxis, and I have to say, after installing (which is a breeze), it is working perfectly. I am excited to have my sirius back up and running strong from the command line.
[Code]...
note, I have no affiliation with the development team, I just thought that this very handy application deserved to be recognized.
Here is a command line tool to view Banshee's status. It isn't much, but I thought it might be useful to someone. Example output:
Code:
Now playing:
01:33 | |
NightOwl
by Maxis from Sim City 4
Ratings: **** ( 100 )
It refreshes every 5 seconds.
How do I save it as a jpg somewhere on my puter using a script? I can wget, but it gets saved as a .evif, which is totally useless. I can right-click on the image in a browser and use the context menu to save it as a jpg, but I want this process automated. How can I DL this image and save it as a jpg? GIMP's CL options don't include the capacity to save/convert this image, though it's possible from teh GUI. ImageMagick won't read this dynamic URL. What do I do?
View 3 Replies View RelatedI installed Phatch today hoping to use it to reduce the file size of some picturesI took for work.I originally took the pics with 12 MP camera and now want to email them to a few peopleas smaller files.I found Phatch, but the docs under man phatch suck...Would anyone mind sharing an example of how to make the above changes to adirectory of pics. My guess is it starts: phatch -vkc --desktop [action] [path]
View 3 Replies View Relatedhow to split wav files from the command line?
View 4 Replies View RelatedI am looking for a command line command to convert ~2500 .flac files to .ogg files. All of the .flac files are in one folder and I would like to have the .ogg files put in a folder labled OGG - I would like to retain song information etc if possible.
View 3 Replies View RelatedHow to get info (length, etc.) about music files in command line? Nautilus can show it on the file's Properties > Audio tab.
View 2 Replies View Related(1) I'm wondering if there is a way to have abcde play the songs while it is encoding? I understand that this would be a lot slower.
(2) Is it possible to have abcde start playing right after it finishes ripping the first track and then have it add on the other tracks to the playlist as it rips them.
Is there anyway to do one or both of these from the command line or with abcde's built-in options?
How do i turn it back on, I found a new login sound i want and i need to turn it back on.
View 4 Replies View RelatedIs there a way to control the gnome sound preferences widget via the command line? I use optical digital out (IEC95. It works fine. but everytime I reboot there is no sound, I have to go to sound preferences, hardware tab, select my internal audio device, change it from digital stereo duplex to analog surround 5.1, then back to digital stereo duplex, and then the sound works again. I would like to be able to do this via command line so I can write a little startup script and not have to do that every time i reboot.
View 4 Replies View RelatedDoes anyone know of any good command line audio editing tools? I would like one that can take an mp3 file and crop everything but the first 30 seconds or so (possibly decompressing those 30 seconds as well).
View 2 Replies View Relatedi have a bunch of shorten files i want to play from the command line and ffplay will play them one at a time but i want to play them one after the other (the whole album)does not work i must have forgotten something as it plays one track then stops.
View 1 Replies View Related