Hello, I'm writing a driver for a video overlay device and have the problem that if I first playback a video with a resolution of say 320x240 and then another one with 640x400 the buffers allocated for the first playback are too small, but my .queue_setup callback isn't called. I think the culprit is the following line in vb2_reqbufs() (drivers/media/video/videobuf2-core.c): /* * If the same number of buffers and memory access method is requested * then return immediately. */ if (q->memory == req->memory && req->count == q->num_buffers) return 0; which exits vb2_reqbufs before ret = call_qop(q, queue_setup, q, &num_buffers, &num_planes, plane_sizes, q->alloc_ctx); Reading the vb1 code, this shortcut isn't implemented there. As I'm quite new to all that v4l2 stuff, I'm not sure what to do. Just removing the return 0 (i.e. reverting 31901a07) seems to do the right thing for me. Thoughts? Thanks and best regards, Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.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
