ChicagoBob

Custom video mixer suggestion

Discussion created by ChicagoBob on Oct 19, 2009
Latest reply on Oct 22, 2009 by ChicagoBob
Writting a multiple input mixer for HD output. Need advice.

Hi,

Writting a multiple input mixer for HD output. I need some advice. My biggest issue is being able to synchronously sending out video frames via directX and knowing it was sent. So far trying to do this I have not been able to time a frame output during a frame sync.

With video capture cards there are callbacks which make it simple to know when to output but the I/O latency has been too large. (6 to 10 frames). So I started to look at video cards to act as an output device. The first problem I have run into is timing the output. Seems there is nothing provided in Windows to know when a frame has been sent.

Is this true or I have not been able to find the function I need.

Thanks

 

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