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pr0g80X.vid episode0.3

May 13th, 2008

Taking the most amount of time get out the door so far it’s episode0.3 of pr0g80X.vid. This episode was a real nightmare to edit, however the end result means not only is it looking sweet, but also that I have a much firmer tool for working on 0.4.

 
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In this episode we have,

  • New Look
  • News [01:26] - Short news segment
  • Pimp My Project [03:28] - Bill Reminder gets the first PMP treatment
  • Hugin [06:55] - Learn how to create stunning panoramics
  • Beginning Python [15:13] - Book review on this little number
  • Keyboard Hacking [19:24] - So just how does our faithful friend work
  • Sign Off [26:37] - The usual see ya next time


Don’t forget we have the new site now with forums, and you can chat to us in #progbox on irc.freenode.net

Disclaimer
Though messing around with keyboards is fun, touch the wrong contacts and you could end up harming the keyboard, and indeed your PCs USB ports. pr0g80X.vid accepts no responsibility for equipment damaged through trying tricks shown in the show. You have been warned.

Thanks to everyone for watching and look out for episode 4 coming soon!!

Miro Video Player

Cinelerra Screenie

May 12th, 2008

Just to show how much work goes into producing a single episode of progbox. 2 hours of recording. 2 hours of sound and video support material. 5 hours in Cinelerra. And this is the result……

Video Editing on Linux :: It can be a real joy!

May 12th, 2008

Ok, so first off my apologies to the entire community for being so brazen and grumpy for the last week. I had spent over 5 hours preparing the video and audio for progbox.vid episode 0.3, and the fact that I was being hampered by a piece of video editing software, on my favorite distro, was just sheer pain. Kdenlive, is a great package, but the current version in Ubuntu Hardy Heron, does have some issues that need resolving. Before people try to give me any more advice on this, I’m done. At the moment Kdenlive is out of the picture. Let me tell you about my new friend.

I was so frustrated, and so enthusiastic about doing episode 3, and indeed progbox.vid in general, that I was even looking at purchasing something like Adobe Premiere, though how I would have afforded it, I’ll never know. I tried so many different alternatives, though the one that kept coming back to me was Cinelerra. I have heard so many negative reports about it, but just occasionally you get a positive report that just wipes all the others clean. I’m hoping this is going to be one of those.

When I first started using Cinelerra, I was put off by the look of the interface. It was dated and old. I also tried importing a few video clips and got very different results. One played just fine, the other played at about 2 frames per second. I was not impressed. So I ditched it once again and went back to banging my head against kdenlive.

Sunday afternoon, it just got the better of me. I loaded up Cinelerra, and started working with the clips I knew worked. Now there are comments floating around that the Cinelerra interface is less than easy to use. Whilst I agree it does have it’s problems, once you have read a few bits in the manual and taken the time to use it, and indeed experiment, it’s really not so bad. I mean if you went out and bought Adobe Premiere, you’d surely spend the time to get to know the package, after all you’ve just shelled out £700 for it. In fact Cinelerra is just down right awesome. Sometimes, because something is free, we just don’t give it the chance it deserves.

Yeh, I admit it I was scared of the unknown. I knew kdenlive, it had been good for making the first two episodes and the promo video, but I needed to stop being stubborn and move on. So, episode 0.3 is done. It’s currently awaiting moderation by my beta team, and then it’ll be live.

My top tips for Cinelerra

  • Mouse Madness
    Remember to learn how to use the different mouse buttons for trimming. Each has a different function.
  • Track Weapons
    Take care on arming and disarming tracks, it looks like a pain to begin with, but it’ll save your life. Cinelerra likes to help you, and if it thinks a video and an audio track are synced, it’ll move them together. IF you don’t want this, just disarm the track you don’t want to move.
  • Make Room
    Keep a spare audio track handy. For some reason, when dragging in some audio tracks, Cinelerra likes to double them up. Always drag into a new audio track first, then you can delete the second instance.
  • Format Wars
    Use MOV, DV or OGG video formats and you’ll be fine.
  • Mr Scientist
    Experiment with the tools. There is nothing wrong with taking a few hours to make a few test video clips.

So in short, I totally rate Cinelerra as the best video editing app on Linux. The feature set is powerful, the effects are plentiful and the general usage is a dream. Yes it took me a little while to get to grips with but now I say with great confidence,

Video editing on Linux isn’t a myth, it isn’t false hope, it’s here.

I hope you can all forgive my rash comments and remarks. Linux still hasn’t ever let me down, sometimes it just takes a week or so to rise to the occasion ;)

I also hear Cinelerra is being rewritten from the ground up.

Video Editing on Linux :: I didn’t want to believe it

May 10th, 2008

So some of you will know my trials and tribulations with kdenlive of late. I felt it only fair to post up a summary of what I have learnt. I recently updated my machine to Hardy, from Gutsy. Whilst I was happy with the upgrade overall, and in fact so happy I was that I did a nice fresh install so that I would have a nice clean system. I wrongly assumed that kdenlive would continue to work just as it had. Well it didn’t. I have tried many things including, but not limited to, installing the old debs from gutsy, recompiling the old version, compiling the new version, compiling a version from April, using the debian multimedia debs. In short, I’m stuck. I feel rather stupid, after being interview on Ubuntu-UK podcast and saying how nice kdenlive was. Kdenlive is awesome, I just don’t understand what has happened to it in Hardy. And I know some people are sitting there saying, well just downgrade to Gutsy again. I don’t particularly want to, and I shouldn’t have to.

So I went searching for an alternative. Blender crashed when playing any audio, even after I found a fix for having no audio in it’s video editing engine. I don’t know how I’d do Picture in Picture effects but if someone knows how to fix this I’d be willing to give ita try, except that when I dragged a video clip in with audio, the audio section seemed to be twice as long as the video, so I’m guessing they were out of sync?

OpenMovie editor, just didn’t have the transitions I needed.

Cinelerra crashed and wouldn’t give me a realtime preview of anything

Lives, I can’t even remember what happened there?!

Kino, doesn’t have a multitrack time line, and therefore is pretty useless to me.

In short, I was sure that video editing wasn’t that bad on Linux. Maybe I lured myself into a false sense of security. Kdenlive was great in Gutsy. Sure it crashed a few times, but it seems unusable in Hardy. I’ve seriously been considering buying some kind of software for doing video editing, but that would mean I have to make friends with another OS, and a) I don’t have the money, and b) I don’t really want to do that.

I have very much enjoyed working on progbox.vid, it’s been a lot of fun. I have worked for about 5 hours getting the footage together for episode 3, but at the moment it’s just sitting on my hard drive, gathering fragmentation :(

At the moment I’m out of ideas……….and I tell ya what…..it’s soo depressing. I love working with Linux and it’s never ever let me down……but I’m feeling like it’s close now. If someone can help out. Please, please. Please. I’ve been at this for over a week.

And now I sleep…………

Kdenlive building from svn…..still no luck :(

May 7th, 2008

Ok, I got it built. I had to make two small hacks.

1) I hacked up the script, line 287 becomes

export CFLAGS="$CFLAGS -I$DEST_DIR/include/libavcodec/ -I$DEST_DIR/include/libavformat/ -I$DEST_DIR/include/libswscale/ -I$DEST_DIR/include/libavdevice/ -I$DEST_DIR/include/"

else it complains that it can’t find the avcodec.h

2) Hack up a file in mlt source dir mlt/src/modules/avformat/Makefile
Change line 18, to read

LDFLAGS+=-L/home/pete/build/lib

However, even after doing this, it builds, but as soon as it starts, it segfaults, with this.

Continuing.
Qt: gdb: -nograb added to command-line options.
	 Use the -dograb option to enforce grabbing.
kbuildsycoca running...
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kdenlive: //  INIT EFFECT SEARCH
kdenlive: ---------  close 1b
kdenlive: ---------  close 2b

Program received signal SIGSEGV, Segmentation fault.
mlt_properties_set (this=0x0, name=0x829fb1c "resource", 
    value=0x852a7b8 "/usr/share/apps/kdenlive/profiles/metadata.properties")
    at mlt_properties.c:277
277		property_list *list = this->local;
Current language:  auto; currently c
(gdb) bt
#0  mlt_properties_set (this=0x0, name=0x829fb1c "resource", 
    value=0x852a7b8 "/usr/share/apps/kdenlive/profiles/metadata.properties")
    at mlt_properties.c:277
#1  0xb6ce2bd8 in Mlt::Properties::set ()
   from /home/pete/build/lib/libmlt++.so.0
#2  0x081af929 in KRender::KRender ()
#3  0x081b0948 in KRenderManager::createRenderer ()
#4  0x081b0cd0 in KRenderManager::findRenderer ()
#5  0x08192dc6 in KdenliveDoc::KdenliveDoc ()
#6  0x0817c715 in Gui::KdenliveApp::initDocument ()
#7  0x0818a987 in Gui::KdenliveApp::KdenliveApp ()
#8  0x081d0781 in main ()
(gdb) 

Any ideas??

Begging for some advice/help!

May 7th, 2008

As I write this post, I am exceedingly angry and frustrated. I’m currently trying to put together episode 0.3 of progbox.vid. I thought this was going to be a fairly simple task, as was 0.1 and 0.2, using my favorite editor, kdenlive. Not so.

To cut a long story short, I wasted an hour this morning trying to make a 30 second video. Kdenlive crashed 15 times at least this morning. So what’s changed I hear you cry 0.5 to 0.6-svn that’s what. 0.6 hasn’t even been released yet, so why are we now using it? I also found regression, in that some plugins I wanted were no longer available (freeze).

I tried to compile from source, but this failed too, maybe a testament to the instability of the 0.6 release at the moment. Incidentally, I also attempted to compile 0.5, but that failed too.

So, I turned my attention to Blender. Blender has a sophisticated video editor built in right? Well, yes it does, but only if I don’t want to be able to mix sound in too By default I had no sound. I googled and found an env line to make SDL use alsa, which apparently works in Hardy. Like heck it does. On my machine it segfaulted.

For video, all I want to do is be an end user, I don’t know enough to contribute in the coding area, I got meaningless backtraces. People are always complaining about not having enough time. Well pool together. Make a common resource. We’re going for a common goal here of video on Linux.

I know I’m going to get lots of comments saying, I use X,Y,Z. Before you do, here are my requirements.

  • Import DivX AVI, MOV, other AVI
  • Create overlay slides from a PNG, and fade them in
  • Crossfade clips
  • Multiple audio tracks, mixable
  • Picture in picture
  • Non Linear

So, please I’m begging you, I wanted to get this episode out by the end of the week. At the moment that looks unlikely.

HELP!

At the moment my only choice is to either re-install gutsy, or get 0.5 working.

[EDIT]
I found this bug on Launchpad. Will try out tonight. Very excited now, hopefully this will solve my problems. https://bugs.launchpad.net/ubuntu/+source/kdenlive/+bug/223260

pr0g80X.vid Promo Video

May 3rd, 2008

Just a little promotional video about the chat room, forums. Built with Blender + Kdenlive. Enjoy.

 
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Feed URL updated

May 3rd, 2008

Due to an unexpected problem, the feed url for pr0g80X.vid has changed. Please update your podcast downloaders. http://www.progbox.co.uk/wordpress/?feed=podcast
Miro Video Player

A note of thanks

April 29th, 2008

Just wanted to say a big big thanks you to those who have been in #progbox since I announced it on freenode. Keeping it busy and providing a really nice environment to chat in. Thanks so much guys!

pr0g80X.vid channel created

April 28th, 2008

Hi guys, just thought you’d like to know there is now a #progbox channel on irc.ubuntu.com for all the peeps that wanna give me advice and or chat to other people involved in the show. Really look forward to seeing you guys there. We don’t just chat about the show, and who knows you may learn something ;)