Bernhard Praschinger wrote
[..]
Get a driver that is able to do mmap playback. Or try to use mjpegtools a 
1.9.0...
[..]

Sorry for hijacking this thread with my problem in a previous thread (lavrec 
records blank), but I thought that it was relevant. Andrea had a similar 
problem as in my thread.

a.) mjpegtools-1.8 does not have the -U option for lavplay, 1.9 does.

b.) mmap playback with on-board: it is interesting that I also have an on-
board sound card, and I do have problem with mmap, just as Andrea has. 
My on-board sound card driver is snd_intel8x0 which is a well established 
driver. Could it be that mmap fails because the card is not pci or ISA, 
because it is "on-bboard"? Just a thought from a non-C programmer or from 
a non-expert of device drivers.

Janos
jankom or janosk from North Andover, Mass, USA


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