Re: My wishlist entry
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From: Sebastien R. <Seb...@sy...> - 2000-04-25 23:15:13
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>>>>> "Arne" == Arne Schirmacher <ar...@sc...> writes: Arne> A command line option for the buffer size is all *I* would like to Arne> have. No need for any automatism though. As long as this feature is not Arne> there, I simply edit the source and recompile, but not all Linux users Arne> are capable of doing that (which is perfectly okay, not everybody is a Arne> programmer nor wants to install the many, many MBytes of developer Arne> related files and learn how to use it). Arne> My opinion is, if we want mainstream Linux users with slow systems using Arne> the Linux 1394 system for DV, then we need a command line option for the Arne> buffer size or another way to set the size. If I may suggest, you should try the new direct dma to user space feature I have announced the other day for the ohci driver. You can set the buffer size to the size of your dv encoded frame at run-time (it even does multi-buffering), and you save quite a bit of CPU time (the ohci hardware does frame sync and packet header/trailer stripping for you)... Definitely a must use for video acquisition, and I would welcome any feedback on it ;-) -- Sebastien Rougeaux RSISE, The Australian National University |