Archive for ‘Video’ Category
Posted on 12:41, August 18th, 2008 by Many Ayromlou
More crazy image-enhanced video rendering papers from University of Washington being presented at Siggraph08. I just can’t get enough of these new applications of combining crappy video and some still frames to produce eye popping results. Most of the experiments in this video were done using a standard video camera and a hi-res still camera. The results were combined, some secret sauce added and you end up with these killer results. I for one can’t wait for editing packages to include some of these research topics as new features….Can you say UNREAL :-)
Posted on 13:11, July 12th, 2008 by Many Ayromlou
This brand new Kraak and Smaak video is just too cool. Makes me want to do some flipbooking of my own. Great visuals and well fantastic music to boot…..enjoy :-).
Posted on 16:49, June 26th, 2008 by Many Ayromlou
Well kids are you ready for todays lesson in transcoding DV video. So first you need a decent machine. I’m using a P4 2.4Ghz oldie that has Firewire on-board and am chewing up 50% CPU for NTSC encoding. Then you need to get Ubuntu 8.04 installed. Once that’s done use the following command to install vlc (Video Lan Client):
The above command (in case you’re wondering) will literally open device zero on the firewire chain and redirect it’s raw output into the VLC program. VLC is told to accept input from a pipe in rawdv format and to transcode it to mpeg4 Video @ 1Mb/s with mpeg1-layer3 audio @ 192 Kb/s.
Once the above command is running you’ll need to go to your receiving machine (the machine who’s IP you supplied in the command above), run VLC and from the File menu choose “Open Network Stream” and go with the default UDP/RTP on port 1234 (or whatever port you chose in the encoder command line).
Another neat thing you can do with your new found opensource goody bag is capture DV from your camera/settop box and save it in mpeg4 format for archival purposes (or mpeg2 for editing maybe). I’m not gonna get into the details, but assuming you’ve done the above commands, skip the encoder command and issue the following command to get your DV stream saved:
Posted on 15:49, March 31st, 2008 by Many Ayromlou
A lot of people seem to be having problems (issues) with the original way I had proposed here using command line. So, I figured I make it real simple and do a graphical tutorial with screen shots to boot :-). In this example we first deal with the server (running windows) at IP address 192.168.1.1, then we move to our client (Mac OSX) at IP address 192.168.1.2 and view the servers screen remotely through streaming video. So first on the server (remember 192.168.1.1 is the IP address):
1) Bring up VLC and select File/Open Capture Device (Ctrl-A). You should see this screen modify the bottom portion (Advanced Options), so it looks like this picture below. You can decrease screen-fps to 15 if you like to speed things up a bit.
2) On that same screen Click on the Settings… button beside Stream/Save and you’ll see the following screen. Make sure it’s configured this way if you want to do the streaming through HTTP protocol. Audio Codec does not need to be checked, since there is no audio, I just put it in as habit. Note the Address field is the IP address of the same machine (the server in this case), which is 192.168.1.1. This can be a bit confusing.
Check this out…..it’s absolutely amazing that the pilot actually managed to pull it off.
Posted on 14:08, February 29th, 2008 by Many Ayromlou
Just watch this. I promise.
Posted on 17:54, January 8th, 2008 by Many Ayromlou
A buddy of mine (thanks Mike) showed me this today. There is a input Access module in the newer versions of VLC (0.8.6+) called “screen” which makes this possible. To stream your desktop to another machine (ip address: 192.168.1.2 in this case) just use the following command in Linux (sorry command line only):
Now on the destination machine just open vlc, goto File/Open Network and by default the Media Resource Locator on top of the window should read udp:// and UDP/RTP with port 1234 should be selected. If it’s not select UDP/RTP (option 1) and put 1234 as the port number. Press Okay and you should see the video stream from the other machine (your server machine). That’s it….Opensource comes to rescue again :-)
Posted on 12:19, December 17th, 2007 by Many Ayromlou
If you like to see some of the most prolific Engineers and Scientists of our time talk about how we got to where we are in computers, head over to the Computer History Museum Channel on You Tube. Oh, and if you’re ever in Northern California somewhere, take a side trip to Mountain View and visit the Museum in person, I did.
Speaking of hand tracking, here is a video of a guy playing around with an unknown system (looks a bit like linux). Very cool demo and almost perfect tracking. Not sure if it’s IR or not, you can see him in the corner of the screen, but can’t quite tell how it’s done. Anyways, I’m posting it since it’s one of the better ones I’ve seen. From the description:
Head over to youconvertit.com. I’ve been waiting for something like this since the early days of the web and it seems like these people have done it. It’s simple, go to the site, upload your file and choose which format you want to convert it to. Give them your email address and they will send you a link to the converted file when it’s done. simple.
They can handle more than 70 different types of graphics, 40 different document formats, 7 different types of audio files and more that 10 different video file formats. As a bonus they also allow you to do unit conversion :-)