Re: [PD] Mix two video streams and add DSK

2010-10-06 Thread Simon Wise
On 06/10/10 08:49, Simon Wise wrote: On 03/10/10 16:37, Jamie Bullock wrote: Latency was the reason I switched to this system, the performance was set in a kind of low budget live TV studio, so with a camera on a person speaking the DV delay was unacceptable, the lip-sync was way too far off

Re: [PD] Mix two video streams and add DSK

2010-10-05 Thread Simon Wise
On 03/10/10 16:37, Jamie Bullock wrote: In terms of latency, I get the impression this is a function of the video capture method used... @Simon, can you tell me which PCI card you are using? This was a few years ago, I guess the current versions would be PCIe instead it was a Euresys Picolo

Re: [PD] Mix two video streams and add DSK

2010-10-03 Thread Jamie Bullock
Thanks Alexandre and Simon, It sounds like technically the task is a trivial one, thanks for the tips. In terms of latency, I get the impression this is a function of the video capture method used... @Simon, can you tell me which PCI card you are using? This project is to port a piece

Re: [PD] Mix two video streams and add DSK

2010-10-03 Thread Alexandre Castonguay
Hi Jamie, The only experience I had with 2 simultaneous live feeds was with Hauppage PCI cards (analog signal in @ 640 x 480). Otherwise, DV input works in GEM but I only had one available port. With multiple live feeds or heavy video manipulation, you have to expect decreased image

[PD] Mix two video streams and add DSK

2010-10-02 Thread Jamie Bullock
Hi, Does anyone know if it is possible with Pd+externals to mix 2 video streams (with the ability to crossfade between), and add a textual overlay on the mixed image (downstream keying)? Is this possible with Gem? Gridflow? If this is indeed possible, what sort of latency could I achieve

Re: [PD] Mix two video streams and add DSK

2010-10-02 Thread Alexandre Castonguay
Hi Jamie, I think it's easy to do with any of the externals handling video but here is a tutorial : http://en.flossmanuals.net/PureData/GEMVideoMixer I would simply add a [gemhead] - [text2d] chain to it. Cheers, Alexandre Le 10-10-02 09:43, Jamie Bullock a écrit : Hi, Does anyone