[FFmpeg-devel] grabbing from dv1394
Tue Jul 10 19:19:10 CEST 2007
On Tue, 2007-07-10 at 19:07 +0300, Tommi Sakari Uimonen wrote:
> Hello again!
> >> Maybe I should also dig into the dvgrab code to see what it does
> >> differently.
> > That's why OpenSource is so great!
> In ffmpeg, the ringbuffer is done with mmap which I guess is faster to use
> than vector of buffers,
The idea is to be as close to zero-copy as hardware permits.
> but I fail to see how the threads are handled if
> any, since grepping 'thread' over the source tree does not give many hits.
Well, strictly speaking threads are not a requirement here.
> The single thread approach works for
> encoding disk streams but not for realtime usage.
Could you, please, elaborate on this one?
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