Hi John, On Thursday, April 29, 2021 14:56 -03, John Cox <jc@xxxxxxxxxxxxx> wrote: > Hi > > >Hi Ezequiel, John, > > > >After creating extensive new compliance tests for this feature I am now > >confident enough about the implementation. > > > >You can find it here: > > > >https://git.linuxtv.org/hverkuil/media_tree.git/log/?h=ctrl-refactor > > > >There are two items that I want to fix before I will post this: > > > >1) The new flag needs to be documented > >2) I think there are some simplifications possible w.r.t. storing the > > size of the new array, I want to look at that a bit more. > > > >In the meantime it would be great if some testing of this series can be > >done with real drivers instead of just vivid. > > Well I finally managed to put together your patch (in 5.10), tweaked > driver & ffmpeg to have a variable noof slice headers and it all seems > to work well. With the code I have it doesn't give a significant > improvement in performance over 1 slice at a time but that is probably > because I have multithreaded userland code and take liberties with > buffer returns from the driver that Ezequiel disaproves of (but my > ffmpeg code is happy with). > I don't think I have ever disapproved anything (and if I made it sound like that, it was a mistake). Quite the opposite, I am more than supportive to see get more drivers merged upstream. Thanks! Ezequiel