Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Chuanbo, On Thursday 02 January 2014 10:22:44 Chuanbo Weng wrote: > Hi Laurent and Tomasz, >As I said in my previous email, you can download the code from > the github address. > I think you can easily reproduce this issue by running my program > (Especially Laurent) and > get more info

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Seung-Woo Kim, Thanks for your reply! I've check VIDIOC_QBUF in my program, and this ioctl returns 0, which indicate that VIDIOC_QBUF is ok. My issue is that the v4lfd receive no event when beginning to read frame. (Seems not the same issue as yours) I suggest you to run my program

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hello, On 2014년 01월 02일 11:22, Chuanbo Weng wrote: > Hi Laurent and Tomasz, >As I said in my previous email, you can download the code from > the github address. > I think you can easily reproduce this issue by running my program > (Especially Laurent) and > get more information from this

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Laurent and Tomasz, As I said in my previous email, you can download the code from the github address. I think you can easily reproduce this issue by running my program (Especially Laurent) and get more information from this program. Could you please tell me whether you have reprod

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Chuanbo, On Tuesday 31 December 2013 19:21:09 Chuanbo Weng wrote: > 2013/12/31 Tomasz Stanislawski : > > Hi Chuanbo Weng, > > > > I suspect that the problem might be caused by difference > > between size of DMABUF object and buffer size in V4L2. > > Thanks for your reply! I agree with you bec

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Tomasz, 2013/12/31 Tomasz Stanislawski : > Hi Chuanbo Weng, > > I suspect that the problem might be caused by difference > between size of DMABUF object and buffer size in V4L2. Thanks for your reply! I agree with you because my experiment prove it (Even when the bo is bigget than frame size, n

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Chuanbo Weng, I suspect that the problem might be caused by difference between size of DMABUF object and buffer size in V4L2. What is the content of v4l2_format returned by VIDIOC_G_FMT? What is the content of V4l2_buffer structure passed by VIDIOC_QBUF? Regards, Tomasz Stanislawski On 12/31/

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Laurent, 2013/12/29 Laurent Pinchart : > Hi Chuanbo, > > On Friday 27 December 2013 09:55:40 Chuanbo Weng wrote: >> > Hi all, >> > >> > (My environment is intel platform, HD4000 GPU, kernel 3.10.19, logitech >> > 270 webcam) >> > >> > As title said, I discover this issue when I run the program

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi Chuanbo, On Friday 27 December 2013 09:55:40 Chuanbo Weng wrote: > > Hi all, > > > > (My environment is intel platform, HD4000 GPU, kernel 3.10.19, logitech > > 270 webcam) > > > > As title said, I discover this issue when I run the program shown by > > Laurent Pinchart: > > http://www.mail-a

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

Ping for reply! 2013/12/25 Chuanbo Weng : > Hi all, > >(My environment is intel platform, HD4000 GPU, kernel 3.10.19, > logitech 270 webcam) >As title said, I discover this issue when I run the program > shown by Laurent Pinchart: > http://www.mail-archive.com/linux-media@vger.kern

DMABUF doesn't work when frame size not equal to the size of GPU bo

Hi all, (My environment is intel platform, HD4000 GPU, kernel 3.10.19, logitech 270 webcam) As title said, I discover this issue when I run the program shown by Laurent Pinchart: http://www.mail-archive.com/linux-media@vger.kernel.org/msg54806.html If the frame is (width, height) =