Tag: Multimedia

Categories
Media Open Source

Adding WaterMarks to Videos in KdenLive


A range of video effects in Kdenlive
Image via Wikipedia

Kdenlive is a wonderful opensource program for video editing that I have off late become a huge fan of. The software is little tough to initially understand but once you get used to it, its very easy to make pleasing videos on it.



One of the recent problems I faced in Kdenlive was to add a watermark to a video I had created. One of the ways to create a watermark on a kdenlive project is as follows:

  1. Create the base project and save your project
  2. Now create a new project with same project settings – fps, resolution etc.
  3. Select «Add Clip» and select the first project you created
  4. Now create a title slide with the information that you will use to watermark.
  5. Now using the Composite transition place the title slide over the first project. You can use the opacity control to control the transperacy of your water mark
  6. Render you video.
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Categories
Linux

Search for Multiple Strings in Linux Command Line

Problem:  I have a text file with a lot of information, I need to pick lines of information containing a particular pattern(s) and store it in another file

Solution: Use egrep to filter out lines with required pattens and write the result in a file.

egrep is actually a short form for “grep -E”, a command used to handle pattens while searching.

For Eg.
Lets say you have a text file with a list of file names and you want to filter out only those names that are of a certian type. For the sake of this example lets assume you want to only see filenames of files ending with .mp3 or .wav or .ogg

The command you need to use is:

cat file | egrep “.mp3|.wav|.ogg” > musiclist.txt

Voila you now have a file that sorts out your music files.

Bonus: If you want to list out all the music files you have stored under a particular directory you can use the following command

ls -1R /path/to/music | egrep “.mp3|.wav|.ogg” > musiclist.txt

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Categories
Solutions Ubuntu Web

Getting Multimedia Working on Ubuntu

Ubuntu wordmark official
Image via Wikipedia

If you are a newbie Ubuntu user then in all probability you have struggled to get the system setup to listen to your favorite music, watch your favorite movies and browse your favorite sites(video and flash).

Is there a quick simple way to fix these problems in one go? Yes there is 🙂

All you need to do is to install the Restricted Extras package for your distro and you are set to go.

For (K/X)Ubuntu 9.04 (Jaunty Jackalope) and 9.10 (Karmic Koala)

Based on your derivative of Ubuntu, install one of these packages:

(K/X)Ubuntu 9.04, 8.10, 8.04

  • Go to your system’s Application installer
  • Search for the package ubuntu-restricted-extras(Ubuntu), xubuntu-restricted-extras (Xubuntu) and kubuntu-restricted-extras (Kubuntu) and install it.

Or Alternatively open the Terminal, and execute the following command:

sudo apt-get install ubuntu-restricted-extras

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