Hi Mauro Thanks for your comments. On Thu, 17 Feb 2011, Mauro Carvalho Chehab wrote: > Em 16-02-2011 08:35, Guennadi Liakhovetski escreveu: [snip] > > (2) cleanly separate setting video data format (S_FMT) from specifying the > > allocated buffer size. > > This would break existing applications. Too late for that, except if negotiated > with a "SETCAP" like approach. Sorry, don't see how my proposal from my last mail would change existing applications. As long as no explicit buffer-queue management is performed, no new queues are allocated, the driver will just implicitly allocate one queue and use it. I.e., no change in behaviour. > There's an additional problem with that: assume that streaming is happening, > and a S_FMT changing the resolution was sent. There's no way to warrant that > the very next frame will have the new resolution. So, a meta-data with the > frame resolution (and format) would be needed. Sorry, we are not going to allow format changes during a running capture. You have to stop streaming, set new formats (possibly switch to another queue) and restart streaming. What am I missing? Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
