When you access your files via the Places menu, (e.g., Places → Home Folder), there are two ways you can view your files (among many other ways, I guess):
The file manager window has a browser pane on the left. This pane (also called the Side Pane) provides easy access to your bookmarks, mounted drives, etc. This is my preferred way. Here’s what it looks like:
File manager with browser pane
The file manager window does not have a browser pane. One of the reasons I am not so comfortable with this is that it opens a new window when you double-click on a folder. Too many windows can result if you are browsing around. And here’s how it looks:
File manager without browser pane
It is a matter of personal preference. Since I use Ubuntu extensively, and its default is to show the file manager with the side pane, I am kind of used to it. So when I started working on another computer where the default was without the side pane, I wasn’t very comfortable.
But as it turns out, like with many other customization options on Linux, this was easy to change.
All it takes is to set the configuration key /apps/nautilus/preferences/always_use_browser to be true. There are a couple of ways you can do that.
With the Configuration Editor GUI
You can start the Configuration Editor from the Application → System Tools menu. Or use the gconf-editor command in the Terminal. Once in the Configuration Editor, navigate to the /apps/nautilus/preferences/always_use_browser key in the left side pane:
/apps/nautilus/preferences/always_use_browser key in the Configuration Editor
Check the checkbox to enable the preference.
With gconftool-2 command
Much easier way, for folks who are not so much against the Terminal. Open the Terminal and use this command:
Idea is to store the state of your Ubuntu installation in the cloud, so that it can be cloned on some other machine, or used to restore after a brand new installation.
This is especially relevant because of the 6-month release cycle. I’ve spent many hours – if not days – to bring my system back to where I like it to be, after every fresh install. Furthermore, it may encourage folks to do a fresh install (versus an upgrade), thereby avoiding many problems that often arise after an upgrade. This is great for anyone who provides support on the the Ubuntu Forums – or other support avenues.
Another reason I like this is that, features like this truly justify Ubuntu One. Ubuntu One needs more ideas like OneConf to harness its great potential, and distinguish it from the other online storage/file sharing services. Not to mention the value it adds to Ubuntu as a desktop Linux distribution.
Grab HD clips from Sony HDR-HC7 HDV camcorder and convert them to HD videos on the web (Vimeo, YouTube, etc.) fairly easily on Linux – specifically, Ubuntu
I’ve been trying to address this problem for a while now. It has been about a year since I tried last. I remember using Kino and giving Cinelerra a shot. For variety of reasons, I did not like either and I gave up on the effort.
Recently, when Ubuntu 10.04 shipped with PiTiVi as the default video editor, I decided to give it another go. Since I had used OpenShot briefly in Ubuntu 9.10, I thought it would be educational to try both the video editors to accomplish the task. So I created a short sample video in both these editors – embedded below.
I am a video pro by no means. I am just a novice user trying hard to shoot least shaky HD movies and sharing them with family and friends – while not embarrassing myself! So please take my input and opinions with a grain of salt. But at the end of it all, I think I prefer OpenShot – at least for my camcorder, my level of skill and expertise using video editors.
Now that the result is out of the way, here’s the rest of the story…
Workflow
Workflow I would like to set up is simple:
Grab clips from the camcorder
Convert clips to a format the video editor likes (I would rather not, but necessary with some editors)
Import them into the video editor
Edit/mix the clips and compose the video
Export it to desired target
Grabbing clips from the camcorder
This is something I learned from my previous experience with Kino. I use dvgrab to grab clips from the camcorder. Here is the source of the script I use:
Sony HDR-HC7 is an HDV camcorder. As such, the above script grabs the clips in form of a sequence of MPEG-2 transport stream (.m2t) files. I use the -timestamp option so that the names of the files include the time when the video was recorded. I also store the output of this script for later use. It includes useful information about the clips – like the timecode, length of the clip in frames, size of the clip etc. Here’s a sample output:
Using OpenShot
Importing video
One thing I really loved about OpenShot is the fact that it can consume .m2t files! Kino did not, Cinelerra did not, PiTiVi does not. So this is great. It completely eliminates one step in my workflow.
Import function in OpenShot (the big green ‘+’ sign in the toolbar) allows you to add video (my .m2t files), audio and other media files.
Editing video
For a simple video, like the one I created for this experiment, all you need to do is drag the clips into the timeline – the lower part of the interface – and position them to define the sequence of scenes in the movie.
Here are some editing/mixing features of OpenShot I used in the making of the sample video:
The razor tool can be used to snip clips at any given position
Markers can be added on the timeline to mark significant positions in the timeline
Video in a clip can be turned ON or OFF
Audio in a clip can be turned ON or OFF
Effects like Fade in/Fade out can be applied to individual tracks
There are many transitions and effects, which I did not use in the sample video
I did not play with titles, credits or subtitles, so I cannot say much about those features. All in all, you can do some basic editing and mixing really well.
Exporting video
Another thing you got to love is that OpenShot comes with canned export profiles. Profiles have export parameters set to work with DVD, Web (Vimeo, Youtube and the likes) etc. The fact that export to Vimeo-HD and Youtube-HD worked so well, make me feel very optimistic about DVD export – which is going to be my next endeavor.
Here’s a screenshot of the export dialog.
Exporting for Vimeo using OpenShot
And finally, here are the videos out of OpenShot, on both Vimeo (exported with Vimeo-HD profile) and Youtube (exported with Youtube-HD profile).
OpenShot Vimeo HD video:
OpenShot Youtube HD video:
Using PiTiVi
Importing video
Like I mentioned, PiTiVi does not consume .m2t files. Apparently, it has the capability, but there’s probably a bug currently, that keeps it from recognizing the files correctly. So there’s hope!
But for now, you must convert the .m2t files into a format that PiTiVi can read. I used ffmpeg to do so. Here’s the command (and its output) I used for .m2t to .mpg conversion:
Converted .mpg files can now be imported and worked with in PiTiVi.
Editing video
Much like OpenShot, PiTiVi allows you to add video, audio and other media files to a project. You then drag the clips in the time line and position them to define the sequence of scenes in the movie.
Here are some editing/mixing features of PiTiVi I used in the making of the sample video:
The scissor tool can be used to snip clips at any given position
I could only add one marker (the cursor), but I am sure there is a way to add more. I just did not try to find it
Instead of Fade In/Out effects or completely turning ON or OFF a clip, PiTiVi allows you to set track levels (brightness for video tracks, volume for audio tracks). The levels can vary through the track depending on the levels in the beginning and the end of track. I think this provides an added level of flexibility. But also, at the same time, makes simple Fade In/Out slightly harder to implement. I like it though
Audio from a video track can be separated into an independent track. This, also, I think is a very handy feature
Again, I did not play with titles, credits or subtitles, so I cannot say much about those features. I also did not easily find any transitions or effects, that could be applied to tracks.
I had trouble synchronizing audio and video in PiTiVi (synchronizing the ‘gong’ with dropping of CD sleeve). I was finally able to synchronize the two with a lot of trial-and-error. The one that rendered kind of synchronized (one below) does not actually look synchronized in the preview. The preview in PiTiVi did not seem very accurate.
Exporting video
PiTiVi does not come with canned export profiles. Although I found a way to export to Vimeo-HD on the Vimeo help sites. It is left to the users to do the research. As you might notice though, the audio/video out of PiTiVi is a bit choppy at times. I probably did not get all the export parameters right. But then again, PiTiVi does not make it any easier.
Here’s the screenshot of the export dialog of PiTiVi:
Exporting for Vimeo using PiTiVi
And here is the resulting Video:
Conclusion
I tend to compare video editors in three different categories – Import, Editing and Export. A good video editor should support a wide variety of input formats. It should have a good balance of powerful and easy-to-use editing features. It should export video in formats that can be played flawlessly on popular targets like the Web (Youtube, Vimeo, etc.) and media players (DVD/VCD players, desktop media players, etc.).
At the time of this writing, I think OpenShot trumps in all the three categories.
In my case, PiTiVi could not import .m2t files. This added a step in my workflow. Hopefully this is temporary and will be fixed soon
PiTiVi has some neat editing features, but lack of transitions and effects shifts the balance in OpenShot’s favor. Also everything you can do in PiTiVi can be achieved in OpenShot to some extent.
OpenShot has export profile for popular targets. This is a must for anyone who doesn’t want to get lost in the many gory details of conversion parameters and their optimal values – certainly for me
Looks like the Linux video editor scene is starting to look up. I hope it only gets better from here.
If something I mentioned in this post is inaccurate/wrong, please point it out in the comments. Hope this helps!
One of the two machines is a Sony Vaio Laptop (VGN-T140P) and other is a desktop built on a Asus P5K-e Wifi/AP motherboard with an Nvidia 8400GS video card.
Install strategy
In both cases I chose to do a clean install. I always keep /home on a separate partition, so clean installs are not much of a hassle. I usually move all the dot-files (and directories) from /home/me out of the way before a clean install. After the install, I bring the ones I need manually. This, I believe, prevents any configuration issues arising from new versions of applications adding/removing/changing any configuration items. I do have to configure some applications – like compiz – all over again, but it is not a big deal most of the time.
I also make a copy of /etc directory before a clean install, just in case I need to refer to the hacks that worked around bugs in the previous release.
Trends
If I look at the way thinks are working on the two of my systems since Ubuntu 8.10 – Hardy Heron, I see pretty consistent trends. My laptop was at its best in Hardy, things are not quite that good now. The desktop, however, is at its best in Karmic! I wonder if it has to do with the video hardware (Intel in laptop, Nvidia in desktop) or wireless usage (I use it in laptop all the time, never on the desktop).
Suspend/resume has gotten worse on the laptop, but almost perfect on the desktop.
Sound, at least on my systems, has greatly improved. It worked out of the box on both of them.
Laptop experience
The general feel of the OS has definitely improved. With the new boot experience, artwork, new themes, Karmic looks pretty neat. It is snappier than ever, even on the laptop with mediocre specifications. All that good stuff is marred by the issues that have come up in this release – from back in the alpha days.
There has always been a problem with the laptop hardware, that when it resumes from suspend (to RAM), the backlight is missing. In the past, I have been able to work around it by setting quirks in suspend/resume scripts. Those hacks don’t work anymore. I haven’t found any work-around for Karmic yet. Launchpad bug #417599.
An even worse issue that has come up is with the wireless networking. In my case, it just doesn’t connect. Even when it does, it doesn’t stay connected for long. It is extremely annoying. Launchpad but #429035. So its mostly wired network for now. I know, laptop wired to the router? That sucks
I hope not for very long though.
Desktop experience
On the desktop, Karmic is just sweet. Out of the box, everything just worked. Sound, video, suspend/resume, everything!
The only thing worth mentioning is that when I first rebooted the system after installing Karmic, Windows entry was missing from the Grub2 menu. All I did to fix this was:
% sudo update-grub
I wonder why it missed the Windows entry during installation. I am sure it runs update-grub as an installation step, doesn’t it? In any case, if you see Windows entry missing from your Grub menu after installing Karmic on a dual-boot machine, just run the above command.
Well, there. Now that the computer are all working, time to get some work done!
Incidentally, I set up a github account for all my little hobby projects. Check it out. All the projects are purely experimental and educational. Nothing is going to blow your mind.
I like to read blogs/news items on Open Source/Linux related topics. Far too often, mostly in the comments, I sense the following sentiment:
I use [insert Linux distribution / some Open Source Software] and I love it! It fails in [insert some scenario/hardware/etc]. But hey, I can’t complain, it’s free!
I don’t know if this is a result of someone misinterpreting the term free or just not being responsible enough.
From what I understand, Free Software is software licensed such that anyone can freely copy, extend and redistribute it. It just so happens that with such a license, the software is easily available free of charge – so you don’t need to pay anyone any amount to install and use it.
What keeps free software alive is the community behind it. The community of developers (God bless them!) who make the software. Also the community of responsible users, who take it upon themselves to contribute in one way or the other. Many choose to make monetary donations to keep the development of free software funded, others choose to make contributions in form of testing. Using the software, reporting bugs when something doesn’t appear quite right, helping the project evolve and stay healthy.
Being free doesn’t mean it is any less in quality. In fact, price has nothing to do with quality. Look at Microsoft Windows and on the other end of the spectrum, look at Mozilla Firefox, Ubuntu or VLC to name a few good quality free software projects.
So when someone says – so what it’s broken, it’s free. You get what you pay for – it really bugs me. If you find something broken in any free software it should be reported to the developers. Most free software projects make it fairly easy to report bugs. Consider it your contribution to the software you use.
Users of free software who talk about the software they use on various platforms – blogs, comments, news websites, etc. – are also the marketing force for the free software. When we users are not careful of what we say about the free software we use, love and support, it is the project that is getting negative publicity.
Although free software is free of cost, it is – IMHO – not free of moral responsibility.
Incorrect hue in videos can be corrected by fixing the hue setting in Movie Player
This is on Ubuntu 9.04 (Jaunty Jackalope), where Firefox uses GStreamer plug-in to display video. Movie Player (Applications -> Sound & Video -> Movie Player) also uses GStreamer as its back-end.
So to fix the hue issue, I opened Movie Player preferences (Edit -> Preferences). In the Display tab, under section Color Balance noticed the Hue. In my case it was set to the minimum value. I clicked on the Reset to Defaults button. It reset the Hue slider to a center position.
Closed Movie Player preferences and reloaded the movie. It looked so much better.
Now I wonder what changed the Hue setting in the first place…
Since its Alphas, I’ve been comparing font rendering in official Firefox 3.0 Linux builds and the ones I used to compile myself. Fonts in the official builds were, and still are, very crudely rendered. Upon reading a little, I learned that this difference is due to the use of different version of Cairo, a graphics library that Firefox uses under the hood.
Using --enable-system-cairo option when building Firefox greatly improves the look of fonts. I used to compile my own nightly builds using this option, hoping that the official builds will move to using that option too, before the final 3.0 release.
I just tried the final release and found that it still does not use --enable-system-cairo option, and the fonts are still not neat.
Thankfully, I also noticed that Ubuntu’s Firefox 3.0 – that got updated today as well, does use --enable-system-cairo option. Now I don’t have to compile my own builds. I wish I had noticed this the first time I installed Hardy – the Firefox 3.0 beta that came with it probably used system Cairo too. But I am glad I noticed this, better late than never.
Here are a couple of screenshots that illustrate the difference:
Click on the image to view full size – The one on top is the Ubuntu build, using --enable-system-cairo option. The one a the bottom is the official Firefox build, not using that option. Notice how the fonts in the Ubuntu build are so much better than the fonts in the official Firefox build
To me, this was a long time coming. Google Desktop Search for Linux is finally here. I did not waste time trying it out. So far it looks pretty impressive…
It does not have the sidebar and gadgets like the windows version, but the desktop search seems good so far.
Few months back when I installed Edgy on my Sony laptop, audio wasn’t working right out of the box. I had to spend a few days googling and ubuntu-forumming to find the fix for that. Eventually it worked fine after un-muting some channels in the Volume Control.
Last weekend I upgraded to Feisty. Again the same thing – audio is gone. Once again I found myself googling and ubuntu-forumming to see if people were having the same problem – and they were. So I was convinced that there was something wrong with audio in Feisty.
Until last night, when I accidentally hit the ‘Mute’ button on the laptop! I don’t remember that button working in Edgy! So I guess its a good thing after all
Over the weekend, I upgraded the Edgy to Feisty on my laptop. The upgrade went just fine, mostly.
The sound is gone. Just like it was after a clean install of 6.10 a few months back. I’ll need to read up a bit and get the audio working.
There was a broken emacs21 module – battery had died when I installed it and I did not clean it up. The upgrade process quit once due to dependency issues with this module. I removed the module and started the upgrade again. It went through. It used all the same downloaded files from the failed attempt.
During the upgrade process, I was constantly worried if I was really upgrading to 7.04 (see the snapshot below). The Upgrade Manager window said Upgrading Ubuntu to version 6.10!. But About Ubuntu was already updated to read 7.04!
File manager with browser pane
File manager without browser pane
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