Reinoud <supergaaf@xxxxxxxxxxxx> writes: > Gerd Knorr <kraxel@xxxxxxxxxxx> wrote: > > > Latest snapshot should accept V4L2_FIELD_ALTERNATE. I hav't tested > > that too much through, feel free to drop me a note if something > > doesn't work ... > > Way cool man! Tried it immediately, it works but has some problems: > > - Strange varying latency. Bottom fields seem to take 60ms to > capture, this is what gets measured on my system: Well, the currently implemented stuff is the easy part of the problem: split data into two buffers. It doesn't wake up at field rate yet, this is still at frame rate. Thats why the odd latencies ... > - VIDIOC_DQBUF fails when using 4 buffers (which VIDIOC_REQBUFS > accepts!). is ->count on return still 4? The driver is allowed to change those values ... Gerd -- Weil die späten Diskussionen nicht mal mehr den Rotwein lohnen. -- Wacholder in “Melanie”
