Re: [PATCH v4 1/4] v4l: vsp1: Prevent multiple streamon race commencing pipeline early

2017-02-13 Thread Laurent Pinchart
Hi Kieran, Thank you for the patch. On Friday 06 Jan 2017 12:15:28 Kieran Bingham wrote: > With multiple inputs through the BRU it is feasible for the streams to > race each other at stream-on. > > Multiple VIDIOC_STREAMON calls racing each other could have process > N-1 skipping over the pipeli

[PATCH v4 1/4] v4l: vsp1: Prevent multiple streamon race commencing pipeline early

2017-01-06 Thread Kieran Bingham
With multiple inputs through the BRU it is feasible for the streams to race each other at stream-on. Multiple VIDIOC_STREAMON calls racing each other could have process N-1 skipping over the pipeline setup section and then start the pipeline early, if videobuf2 has already enqueued buffers to the