Re: [ubuntu-uk] Screencast a presentation with Impress and webcam
Try guvcview for webcam viewer, it also has the option of recording a video stream. There is also a way of recording via ffmpeg, but I can't remember the command now. To make it all professional you could put all the video streams together in kdenlive. Try Kazam from their Unstable PPA for recording your desktop, its a lot quicker than gtkrecordmydestktop https://launchpad.net/~kazam-team/+archive/unstable-series I've been recording Ubuntu and Linux related screencasts for the past couple of years on Youtube. Feel free to take some inspiration: http://www.youtube.com/quidsup Ivan -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Screencast a presentation with Impress and webcam
On 22/01/13 17:17, James Morrissey wrote: > Hi, > > I am trying to put together a presentation for a conference. The > conference is in Australia and rather than flying there i am trying to > make a video of my presentation, following which i will skype into the > Q&A plenary. > > I had thought of simply reading the paper, but worry this might get a > little boring for the audience. So now i am thinking of including some > impress slides into the presentation. With that in mind i also don't > want to simply have my voice running over an impress slide. > > So i have thought of trying to make a screencast with an image from my > webcam running in one of the corners. This seems easy enough, just set > cheese (or some equivalent) running and record my desktop. The problem > though is that i'd ideally like to be able to run impress in full > screen mode. Doing so, however, covers up cheese - even if i set it to > 'always on top'. > > In a perfect world i'd also be able to resize the video of myself, > during the video, so that when the slide is more relevant to what i am > saying it dominates the picture and when what i am saying is most > relevant, my face does. > > The solution i thought of was to run cheese on one workspace and > recordmydesktop on another, where Impress is running in full screen > mode. I'd then give the talk, clicking through impress, with both > recordings running. Following that i'd open one instance of Totem and > another of VLC, one showing the cheese video of me and the other the > screencast of Impress. I'd then record that desktop, resizing the > cheese video, of myself, at the different parts of the talk. > > Unfortunately it seems that running recordmydestop means that cheese > can't record from my webcam - it can show the image, but crashed when > i hit record and now can't find my webcam. The same thing has happened > with Kamoso which also now can't find the webcam. > > I was thus thinking that i could try and use a cam corder, and take a > video of me giving the talk before taking a screen cast of the impress > presentation, using the audio from the talk as my cue for clicking > through the slides. I'd then stick the two of them together, as > described above, recording the two videos playing on top of one another. Rather than do that, what about recording yourself with Cheese first and save the video to a file? No need for a camcorder. Then re-run the audio and click through the slides. Then save the screencast of the slides to another video file. Finally combine both videos using gstreamer picture-in-picture compositing abilities, as explained here: http://www.oz9aec.net/index.php/gstreamer/347-more-gstreamer-tips-picture-in-picture-compositing You could probably use a video editor to do this as well. Cheers, Bruno -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
[ubuntu-uk] Screencast a presentation with Impress and webcam
Hi, I am trying to put together a presentation for a conference. The conference is in Australia and rather than flying there i am trying to make a video of my presentation, following which i will skype into the Q&A plenary. I had thought of simply reading the paper, but worry this might get a little boring for the audience. So now i am thinking of including some impress slides into the presentation. With that in mind i also don't want to simply have my voice running over an impress slide. So i have thought of trying to make a screencast with an image from my webcam running in one of the corners. This seems easy enough, just set cheese (or some equivalent) running and record my desktop. The problem though is that i'd ideally like to be able to run impress in full screen mode. Doing so, however, covers up cheese - even if i set it to 'always on top'. In a perfect world i'd also be able to resize the video of myself, during the video, so that when the slide is more relevant to what i am saying it dominates the picture and when what i am saying is most relevant, my face does. The solution i thought of was to run cheese on one workspace and recordmydesktop on another, where Impress is running in full screen mode. I'd then give the talk, clicking through impress, with both recordings running. Following that i'd open one instance of Totem and another of VLC, one showing the cheese video of me and the other the screencast of Impress. I'd then record that desktop, resizing the cheese video, of myself, at the different parts of the talk. Unfortunately it seems that running recordmydestop means that cheese can't record from my webcam - it can show the image, but crashed when i hit record and now can't find my webcam. The same thing has happened with Kamoso which also now can't find the webcam. I was thus thinking that i could try and use a cam corder, and take a video of me giving the talk before taking a screen cast of the impress presentation, using the audio from the talk as my cue for clicking through the slides. I'd then stick the two of them together, as described above, recording the two videos playing on top of one another. Another problem however is that when i try and record two videos on my desktop, my machine can't seem to handle it. The images come out with jagged lines all over them. I've tried upping the video quality, changing the frame rate, adding quick sub-sampling and turning off on the fly encoding. Nothing seems to work. I was thus wondering if anyone on here had any thoughts as to how i might do this. Is there a way to get cheese to show above the Impress window? Is there something i could do to get a decent recording of a previous video running on my desktop? Two important notes in all this: i've been using recordmydesktop and my machine is only an i3 - but with 8GB of RAM. Thanks, James. -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
