Episode 112: Two Candles

112
Download the Video! (57.9 MB, 30:28) Now iTunes and Quicktime friendly! (Since Aug 1 2009)
Download the Video for iPods etc (31.2 MB, 30:28)
Download the Torrent!
Download the Companion File!
It’s just a bit after Midnight here in Germany – and so at least for nearly half the world still Friday, July 24th. And that is the second birthday of Meet the GIMP.

I cover two questions for this is the first HD show – and it took ages to render. I will have to adjust my workflow. ;-) I start with a problem of Ivo, the producer of Autozine – an online car magazine made with GIMP. He wants to change reality a bit and move letters around in an image.His images are in the companion file.

Then I tackle selective sharpening again after I got a question about how to further control the sharpened area. In episode 6 I constrained the sharpening to the edges in the image – here I reduce it to parts of the image.

In case that you wonder why there is no sharpening while I paint the antenna – have a look at the “eyes” in the layers dialog box….. ;-)

This post will be updated tomorrow – then there will be also a mobile version and the companion file. Good night!

Mobile version of the vido is in the making is ready – I hope it will play everywhere.

There are comments about problems with iTunes and this episode. Is there anybody who can play this in iTunes?

The Mobile Version is a quick and dirty build with Handbrake. Does it play? Where? Where not? And why is it so large? ;-) Update: newer version in a bit larger and different encoding. Please check!

58 thoughts on “Episode 112: Two Candles

  1. Congratulations!
    This is the best screencast I have followed so far.
    You have done a grate service to the Gimp users and the Open source community at large.
    Also it is very good that you switched to HD. The size difference is not much which is even better.

    I would like to wish you all the best on all your future endeavors!
    Long live meet the gimp.

  2. Rolf,
    I’m sorry but I can’t see the video. All I can see is a black screen even though I can hear the audio. I am using Quicktime 7.6.2. I have not had any problems viewing the video up until now. I hope it isn’t something serious. I also hope that you got a good night’s rest :)

  3. The increased size and resolution makes it so much easier to follow your lesson. Great improvement! Keep up the progress.

  4. Wow.. nice job! I found the quality to be great. I’m really surprised that at 30min in length it was only 60MB. I guess there’s not a lot of motion so that helps. No problems viewing on Totem in Crunchbang linux.

    What do you use for editing together all your stuff (titles, music, etc..)?

  5. I’ve just discovered this site and the video was very interesting. The quality is superb when viewed with VLC. But with QuickTime, I could not see the image… I don’t know why. Via iTunes, as the engine is QuickTime, it didn’t work either.

    Thanks for this website!

  6. Really enjoying the HD but as others of said, no hope with QuickTime and thus iTunes. VLC will play it but there are some issues. The audio sounds fine but the video seems to jump back a 5-10 frames every 2-5 frames, it’s watchable but there is a lot of jerking around. Something also seems to be going on around the 13 minute mark when you use the app switcher which could be related to the screen recorder or to keyframes.

    I’m no expert but I thought I’d try and describe what I was seeing!

    Great show, keep up the excellent work!

  7. Is there somebody able to watch this with iTunes? x264 is really a standard encoding these days.

    I can not see the jumping around here that Matthew described.

    At 13 minutes there is an issue with the recording – areas that should have been updated after the darkening of the screen were not updated. I’ll use the task bar instead.

    @Richard: I use cinelerra for editing – and when this runs stable I’ll blog about the process – either written or in video.

  8. >@Richard: I use cinelerra for editing – and when this runs stable I’ll blog about the process – either written or in video.

    That’s gonna be interesting, seeing you editing the video while still recording and commenting it. Kinda reminds me of that old sf movie where they watched the tape to figure out which planet to comb…

    @Rolf Thanks for the show, the individual/selective sharpening tip is really great and now in hd it’s even greater! But how did you take this photo, just a snapshot or did arrange it? Usually butterflies fly away when I try to get near enough to even see them, let alone take a shot.

  9. This was shot by chance – I came along the garden where they were milling around. And I could not disturb them, because the garden fence kept me away. 200mm on a APS-C DLSR gives you quite a range. Distance about 50 to 75 cm.

  10. Great video, Rolf, and congrats for the 2 years!
    Regarding the itunes (and quicktime) it seems that quicktime implementation of h264 is incomplete, so it can’t decode them if some special features are being used to encode the film. I will look into it when I have some time. For now, you could try the options used by Handbrake in the Apple presets.
    I watched it using miro (with gstreamer backend) and worked perfectly (everything but that grey noise when you did alt-tab, can you confirm that it was in the final encode when that appeared?)

  11. I have big problems with the video. When I just open the folder where the file is saved, Windows Explorer crashes! I can’t even delete the file… New start doesn’t solve the problem.

  12. Chris, I don’t have windows. But I think you should switch off the video preview option, so that Explorer doesn’t try to open the video.

    Or you use the command line.

    Or you install the missing codecs for x264, then you can play the video.

  13. Great stuff and what an interesting comparison between episode 1 and this, your latest offering. Detail and clarity were very good indeed and I look forward to watching future developments. The only thing I have difficulty in coming to terms with is the layout, having two panels, one either side of the image, where tool selection and layer usage and so on are displayed. From episode 1 onwards you had only one display panel and I modelled my layout on that system which I find very convenient, so the new approach takes a bit of getting used to. Technically, as you know, I run Ubuntu 9.04 and it was a surprise to see the computer select Avidemux to display the video instead of the usual Movie Player.

  14. Wonderful new HD format Rolf!! It’s great to have a video this size for viewing details in an image and the results of your post processing. I had no problems viewing the video on Win XP, with Firefox 3.51. The video runs smoothly in KMPlayer with no jumps or jerks whatsoever. After the music faded and the audio switched to your microphone I experienced a more or less constant hiss in the background, sort of like amplified signal noise. Is this just on my setup, or did anyone else hear the hissing noise?

    Anyway, a wonderful improvement to an already great show! :-)

    PS: Those of you with playback problems on Windows may want to give the free and very good KMPlayer a try: http://download.cnet.com/The-KMPlayer/3000-13632_4-10659939.html

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  16. Yes, I deleted the file in the command line. I watched the video with the VLC player. As you suppose, the reason for crashing was the preview option, but explorer crashed when it was deactivated and I just clicked on it to mark it, too.

  17. Rolf, great show you have. I’ve been watching for a month or two with Miro on Mac OS X, but the move to HD format with this episode does not play in Miro. Audio works but video is black. Same results with Quicktime and iTunes. Others have mentioned this as well.

    Matthew described the video in VLC “jumping around” which I see also. This is a 2.8GHz Core 2 Duo, with 4GB of RAM, so it shouldn’t have any trouble decoding HD video.

  18. Miro uses a different backend on each OS. In linux it uses gstreamer or xine, that’s why it works. Perhaps on OS X uses quicktime.
    I’ve tried using handbrake and quicktime can decode the files it outputs. You could try using it to encode the HD version too. (but I think you didn’t use it because it crashed once).
    I suspect that mencoder is not outputting a real mp4, but an avi with an mp4 extension. That could be confusing quicktime.
    As for the jumping around. I noticed something on vlc, but not on xine, mplayer or gstreamer based players

  19. > I suspect that mencoder is not outputting a real mp4, but an avi with an mp4 extension.

    mplayer tells me:
    LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format

    and file says:
    Meet the GIMP – Episode 112 – Two candles.mp4: ISO Media, MPEG v4 system, version 1

    So it seems like a real mpeg4 file to me.

  20. Hehe, nice placebo effect with the antennas ;)

    The video is playing smoothly with VLC and avidemux under Ubuntu 9.04. I only experience some shaking image parts and black flashes from time to time.
    And mplayer is not showing anything at all. The sound plays but the picture remains black and some error messages are flashing on and off (so fast I could not read them). But the terminal said:

    Playing meetthegimp112.mp4.
    Quicktime/MOV file format detected.
    [mov] Video stream found, -vid 0
    [mov] Audio stream found, -aid 1
    VIDEO: [avc1] 1280×720 24bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
    xscreensaver_disable: Could not find XScreenSaver window.
    GNOME screensaver disabled
    ==========================================================================
    Opening video decoder: [ffmpeg] FFmpeg’s libavcodec codec family
    Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
    ==========================================================================
    ==========================================================================
    Forced audio codec: mad
    Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
    FAAD: compressed input bitrate missing, assuming 128kbit/s!
    AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
    Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio) decoder)
    ==========================================================================
    AO: [pulse] Failed to connect to server: Connection refused
    AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
    Starting playback…
    [h264 @ 0x8972330]non existing PPS referenced
    [h264 @ 0x8972330]decode_slice_header error
    [h264 @ 0x8972330]no frame!
    Error while decoding frame!

  21. Sadly I use Apple Quick Time to view the video, so I cannot watch this episode.

    I was going to try the mobile version in the hope that you used a codec that Apple support but you need to update the link as it doesn’t point anywhere at the moment (09:15 GMT 27.07.2009)

  22. @monoceros84
    do
    export MPLAYER_VERBOSE=9
    then start mplayer from the same shell and look through the messages (will be a lot) for errors
    I use this version and it works: “MPlayer dev-SVN-r29116-4.3-openSUSE Linux 11.1 (x86_64)-Packman (C) 2000-2009 MPlayer Team”

  23. @rolf
    I’ve heeded your advice and your are right. Until now I used my p&s cam for closeups since it’s smaller and, well, you don’t have to lug around so much. And it has a minimum distance of 3mm or so. Today i tried it with my 55-250 lens and even from a distance of about 80cm, the quality is much better. I’ll add an example to the photogroup, that i used the selective sharpening method on.
    So, thank you very much for the advice, all i need now are some good photo opportunities…

  24. Hmm, wouldnt it be easier and more fun to simply get a bunch of local mtg fans, through in some autozine fans if ther isnt enough, go there, take a blow torch and move the letters? The too much can just go in the water. Nobody will see. Friends did this 2005 with the big einstein formel letters in berlin and tell the police its art. They got no problems but they needed a crane, they were only 5 guys and the letters were more like 2t.

  25. I am unable to view the HD podcast using iTunes. I hear audio but only see black. iTunes is using Quicktime 7.6.2. I also have perian installed which adds support for many other codecs and video packages. I have opened the file in VLC 1.0.0 and have experienced similar jumping as has been previously reported.

    VLC identifies the video codec as avc1, so after doing a little searching I found avc1Decoder 0.8.1 available from http://www.macupdate.com/info.php/id/23875/avc1decoder. I installed the plugin following the directions in the readme file, and the podcast now plays in both quicktime and iTunes. (Just don’t forget to close the programs and then reopen them after installing the plug-in. I spent a fair amount of time trying to figure out why it was now playing in Quicktime but not iTunes. I soon discovered that I had iTunes open at the time I installed the plug-in and had never restarted it.)

    So people who want to use iTunes will need to enable avc1 support in Quicktime. I do not know if a more universally supported codec is available for encoding on your end Rolf, but that maybe another option.

  26. @sebalin: That sounds like a lot of fun, but is perhaps more work Ivo is prepared to invest. The trouble aside…
    But you can do a lot when you put the art sticker on it. ;-)

  27. Hi Rolf
    The new format is just awesome. I hope, the troubles with the non-linux viewers did not spoil your enthusiasm. Sooner or later, these problems will be solved (o circumvented). Keep up your good work!

  28. Hi,
    that was really a good tutoril.
    I’m from Brazil and l’m a begginer at GIMP and the tutorials of these web site are helping me a lot.

    Good work and good bye!

  29. Unfortunately my iTunes 8.0.2 crashed every time when I download episode 112. I’ll try to get the file manually and remove it out of iTumes, hope that will fix it.

    Marian

  30. two years “Meet the Gimp”, two long years and just past.
    Rolf, I wish you many new ideas, and I hope for more shows. :-)
    You have made a great work!!

    Gerhard

  31. Like Marian iTunes crashes when downloading episode 112. This is with 8.2.1 (6) on Mac OS X 10.4.11 (with all the latest security fixes).

  32. Tons of positive feedback to the new format and the screencast itself from Spain.
    I’m a big fan of GIMP since I follow your tutorials. Thanks!

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Anything to add from your side of the computer?