[Live-devel] Problem with FramedSource and TaskScheduler

[Ross Finlayson]

>Could someone enlighten me on this ?
>do I have to provide a FD interface to my FramedSource to notify that a
>new frame is ready ot something like that ?
>Do I have ro implement an other kind of Scheduler ?
>I am really confused on this and I have problem seeing the big picture
>of all this.

The "big picture" is that your input device must generate 'events' 
that are seen and handled by the event loop.

The easiest way to do this - which does not require changing the 
pre-supplied event loop implementation "BasicTaskScheduler" - is to 
treat your input device as an open file in the operating system's 
file system.  For most sensible operating systems (not Windows), 
input devices are already files - so, for example, you could use the 
existing " testMPEG1or2VideoStreamer" test program by just replacing 
"test.mpg" with the name of your device file (or "stdin" if you are 
using a pipe).

If your input device is not an open file, then you must either use 
polling using "scheduleDelayedTask" (which adds latency), or else 
write a new event loop (a new subclass of "TaskScheduler") that 
recognizes your device's input frames as events.
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/