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Showing posts with label open-source. Show all posts
Showing posts with label open-source. Show all posts

Saturday, January 22, 2022

Fedora 35 : Kdenlive tool.

Note:
The new title of this blog is:About Fedora Linux distro
This was my first blog since blogspot.com and now blogger.com and I wrote my first articles and tutorials using the Linux operating system, especially Fedora distro.
Because I used it so much and it had an impact on my free time. Initially the title was generic "About me and my life" and I later kept it for S.E.O. and because it worked just as well as me.
The new title will not change the content at all and I hope it will come with new and good content.

Let's go back to today's tutorial article: installing kdenlive software.
Kdenlive is a powerful free and open source cross-platform video editing program made by the KDE community.
The last release was on Jan 7, 2022.
I use the DNF utility as follows:
[root@fedora mythcat]# dnf search kdenlive
Last metadata expiration check: 1:20:50 ago on Sat 22 Jan 2022 06:05:54 PM EET.
======================== Name Exactly Matched: kdenlive ========================
kdenlive.x86_64 : Non-linear video editor
[root@fedora mythcat]# dnf install kdenlive
Last metadata expiration check: 1:21:05 ago on Sat 22 Jan 2022 06:05:54 PM EET.
Dependencies resolved.
...
Complete!
After install I run well with this software:
[mythcat@fedora ~]$ kdenlive
QSocketNotifier: Can only be used with threads started with QThread
Invalid metadata for  "audiochannels"
Failed to parse "audiochannels"
Invalid metadata for  "audioconvert"
Failed to parse "audioconvert"
Invalid metadata for  "data_feed"
Failed to parse "data_feed"
Invalid metadata for  "imageconvert"
Failed to parse "imageconvert"
Invalid metadata for  "jack"
Failed to parse "jack"
Empty metadata for  "crop_detect"
Invalid metadata for  "glsl.manager"
Failed to parse "glsl.manager"
Invalid metadata for  "movit.convert"
...
This is a screenshot of the running program:

Sunday, January 2, 2022

Fedora 35 : OBS Studio tool.

This is a free and open-source software for video recording and live streaming for Linux, Mac, and Windows.
You can download it from the official webpage.
This software can be install with the DNF tool:
[mythcat@fedora ~]$ sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
[sudo] password for mythcat:
Last metadata expiration check: 0:06:53 ago on Sun 02 Jan 2022 10:26:02 PM EET.
rpmfusion-free-release-35.noarch.rpm                26 kB/s |  11 kB     00:00    
rpmfusion-nonfree-release-35.noarch.rpm             35 kB/s |  11 kB     00:00    
Package rpmfusion-free-release-35-1.noarch is already installed.
Package rpmfusion-nonfree-release-35-1.noarch is already installed.
Dependencies resolved.
Nothing to do.
Complete!
[mythcat@fedora ~]$ sudo dnf install obs-studio
Last metadata expiration check: 0:07:23 ago on Sun 02 Jan 2022 10:26:02 PM EET.
Dependencies resolved.
...
Install  37 Packages

Total download size: 31 M
Installed size: 101 M
...
Complete!
If you have an old laptop with an old graphic card then this software will not work.

Tuesday, April 9, 2019

Fedora 29 : Thonny editor for python.

This Python IDE for beginners named Thonny is a simple editor with Python 3.7 built in.
The official webpage can be found here and the GitHub project page is this.
The development team is from the University of Tartu, Estonia with the help from the open-source community. Thonny grew up in University of Tartu (https://www.ut.ee), Institute of Computer Science (https://www.cs.ut.ee).
I test it today with Fedora 29 and works well.
Let's start with the first step:
[mythcat@desk ~]$ pip3 install thonny --user
Collecting thonny
...
Successfully installed astroid-2.2.5 asttokens-1.1.13 docutils-0.14 isort-4.3.17 jedi-0.13.3 lazy-object-proxy-1.3.1 
mccabe-0.6.1 mypy-0.700 mypy-extensions-0.4.1 parso-0.4.0 pylint-2.3.1 pyperclip-1.7.0 pyserial-3.4 thonny-3.1.2 
typed-ast-1.3.1
...
[root@desk mythcat]# dnf install python3-tkinter.x86_64
Last metadata expiration check: 0:21:20 ago on Tue 09 Apr 2019 09:57:24 PM EEST.

Installed:
  python3-tkinter-3.7.2-5.fc29.x86_64          tk-1:8.6.8-1.fc29.x86_64         

Complete!
This editor can be found on Fedora repo, but I used the last released version software.
[root@desk mythcat]# dnf search thonny
Last metadata expiration check: 0:36:55 ago on Tue 09 Apr 2019 09:57:24 PM EEST.
========================= Name Exactly Matched: thonny =========================
thonny.noarch : Python IDE for beginners

Thursday, September 7, 2017

News: New release of PulseAudio.

As we already know: PulseAudio is a network sound server and works well with the Linux operating system.
Now a new version has been released.

PulseAudio 11.0 release notes:
  • Support for newer AirPlay hardware
  • USB and Bluetooth devices preferred over internal sound cards
  • The default sink and source configuration is remembered better
  • Bluetooth HSP headset role implemented
  • Bluetooth HFP audio gateway role implemented (requires oFono)
  • Bluetooth HSP audio gateway and HFP hands-free unit roles can be enabled simultaneously
  • Upmixing can now be disabled without bad side effects
  • Avoid having unavailable sinks or sources as the default
  • Option to avoid resampling more often
  • Option to automatically switch Bluetooth profile to HSP more often
  • Better latency regulation in module-loopback
  • Changed module argument names in module-ladspa-sink and module-virtual-surround-sink
  • Fixed input device handling on Windows
  • Improved Bluetooth MTU configuration (warning! this causes some hardware to not work anymore, see the details below for how to fix it)
  • GNU Hurd support
  • Applications can request LADSPA or virtual surround filtering for their streams
  • Support for 32-bit applications on 64-bit systems 

Monday, October 31, 2016

News: OpenStack Summit - videos.

About OpenStack summit:

The OpenStack summit is a unique opportunity for the developers and users of OpenStack software to meet and exchange ideas. Hundreds of the core developers will be on site to discuss all things OpenStack. Summits include in-depth technical discussions, hands-on workshops, and the full presence of almost every player in the OpenStack Ecosystem. If you are deploying OpenStack—or considering how it can help your enterprise—there’s no better way to connect with the community 
than the OpenStack Summit. 

Videos of demos and case studies from the Barcelona OpenStack Summit are going online.
See all videos here.

Area: Barcelona, Spain Date:October 25-28, 2016

Wednesday, September 21, 2016

Linux application Flowblade version 1.8 .

This video editor is a multitrack non-linear video editor for Linux released under GPL 3 license.
I try to use also with Fedora Linux distro ( Fedora 25 alpha) but not work for me.
I don't see in Fedora anything like python-gi-cairo.
Also, I put this issue under GitHub project, maybe will be fixed.

According to the official webpage, the software comes with:

Features

Editing:

    3 move tools
    3 trim tools
    4 methods to insert/ overwrite/append clips on the timeline
    Drag'n'Drop clips on the timeline
    Clip and compositor parenting with other clips
    Max. 9 combined video and audio tracks available

Image compositing:

    6 compositors. Mix, zoom, move and rotate source video with keyframed animation tools
    19 blends. Stardand image blend modes like Add, Hardlight and Overlay are available
    40+ pattern wipes.

Image and audio filtering:

    50+ image filters: color correction, image effects, distorts, alpha manipulation, blur, edge detection, motion effects, freeze frame, etc.
    30+ audio filters: keyframed volume mixing, echo, reverb, distort, etc.

Supported editable media types:

    Most common video and audio formats, depends on installed MLT/FFMPEG codecs
    JPEG, PNG, TGA, TIFF graphics file types
    SVG vector graphics
    Numbered frame sequences

Output encoding:

    Most common video and audio formats, depends on installed MLT/FFMPEG codecs
    User can define rendering by setting FFMpeg args individually

Saturday, May 21, 2016

LibreOffice Viewer - tested.

I like LibreOffice because is opensource with a great team development.
Can be used with Windows and Linux.
Today I will told about the Android OS and LibreOffice.
LibreOffice is now available on Android as a native application with this formats:
• Open Document Format (odt, ods and odp);
• Microsoft Office 2007/2010/2013 (docx, xlsx and pptx);
• Microsoft Office 97/2000/XP/2003 (doc, xls and ppt).
Named LibreOffice Viewer comes with a first preview of the editing functionality and is sized to APK:48 MB / App installed:81 MB.
I think is need to improve this application with viewer for epub and some ebook document formats.
This will remove some applications.
Note: Microsoft Office come with 1GB of RAM and also can be used.

Monday, April 25, 2016

Tested the Libre Office software.

Today I tested Libre Office suite. The last version is 5.1.2.2 and has many features.
I like to used because I can export my work under Microsoft Office and also to open document.
You can download it from libreoffice official page.
This software can be used with many ope systems, like:
You have LibreOffice come with Impress, Calc , Writer, Math and Draw to deal with any type of issue.  I don't like for example the way to rename the macro. You need to go to : Tools -Macros -Organize Macros -LibreOffice Basic.. the Organizer button and finally double click to the name of the macros , rename and close. I think this come from permisions of the macros.
Also You can deal with macros what do you want. For example in this example I delete some fields from one document - one matrix make from A3 to B10.
  Dim myDoc As Object
  Dim mySheet As Object
  Dim myCell As Object
  Dim myRange As Object
  Dim myFlags As Long
 
  myDoc = ThisComponent
  mySheet = myDoc.Sheets(0) ' Refers to Sheet1 as in 0, 1, 2 etc
  myRange = mySheet.getCellRangeByName("A3:B10")
 
  myFlags = com.sun.star.sheet.CellFlags.VALUE + _
      com.sun.star.sheet.CellFlags.DATETIME + _
      com.sun.star.sheet.CellFlags.STRING + _
      com.sun.star.sheet.CellFlags.ANNOTATION + _
      com.sun.star.sheet.CellFlags.FORMULA + _
      com.sun.star.sheet.CellFlags.HARDATTR + _
      com.sun.star.sheet.CellFlags.STYLES + _
      com.sun.star.sheet.CellFlags.OBJECTS + _
      com.sun.star.sheet.CellFlags.EDITATTR
 
  myRange.clearContents(myFlags)
This is a simple type of macro using LibreOffice Basic language. You can also use Python , BeanShell, JavaScript.
So if you like this software and you want to survive this software, you can make a donation of at least 5 USD.

LibreOffice is Free Software and is made available free of charge. Your donation, which is purely optional, supports our worldwide community.If you like the software, please consider a donation.

Thursday, April 21, 2016

Blender 3D new tutorial - hologram effect.

I make today a new tutorial about Blender 3D version 2.77a - the last version of Blender software. Is a simple tutorial with a cube and one plane but with some nodes and Cycles render engine. The result is a beautiful result of hologram effect. So you can take a look here.

Tuesday, September 22, 2015

GIF file animated with open-source software.

I tested the Blender 3D version 2.76 with Inkscape and Synfig to make this GIF animated.
This is the result :

I used the default cube from Blender 3D to make a SVG image. 
Also I working with Synfig software to create this GIF. 
I will make one good tutorial about this GIF. 
I hope this will help you to find new ways to deal with the open-source software.