Hi Gianluca, On Mon, Jun 25, 2012 at 4:09 AM, Gianluca Bergamo <gianluca.bergamo@xxxxxxxxx> wrote: > Hi Ezequiel, > > No problem in patching each new release you made. Please note I've just send a v3 of stk1160 driver. It adds support for controlling ac97 and for selecting video inputs. > > In my environment this command line gives only one format supported (UYVY) > and then yavta freezes. > I suspect it freezes on an ioctl to the driver. I must check it. > Weird. I've just tested with yavta and it works perfectly. You should note that this command is wrong: ./yavta -f YUYV -s 720x576 -n 4 --capture=4 -F /dev/video1 and it should be: ./yavta -f UYVY -s 720x576 -n 4 --capture=4 -F /dev/video1 Since, as you noted the only supported format is UYVY. Some applications take advantage of libv4l2 wrapper library to increase the output format set. For instance, if I do ENUM_FMT using v4l2-ctl I get just one supported format: $ v4l2-ctl --list-formats ioctl: VIDIOC_ENUM_FMT Index : 0 Type : Video Capture Pixel Format: 'UYVY' Name : 16 bpp YUY2, 4:2:2, packed But if I use wrapper library: $ v4l2-ctl -w --list-formats ioctl: VIDIOC_ENUM_FMT Index : 0 Type : Video Capture Pixel Format: 'UYVY' Name : 16 bpp YUY2, 4:2:2, packed Index : 1 Type : Video Capture Pixel Format: 'RGB3' (emulated) Name : RGB3 Index : 2 Type : Video Capture Pixel Format: 'BGR3' (emulated) Name : BGR3 Index : 3 Type : Video Capture Pixel Format: 'YU12' (emulated) Name : YU12 Index : 4 Type : Video Capture Pixel Format: 'YV12' (emulated) Name : YV12 In case you need it, here's my yavta output: $ ./yavta --enum-formats /dev/video0 Device /dev/video0 opened. Device `stk1160' on `usb-0000:00:13.2-2' is a video capture device. - Available formats: Format 0: UYVY (59565955) Type: Video capture (1) Name: 16 bpp YUY2, 4:2:2, packed $ ./yavta -f YUYV -s 720x576 -n 4 --capture=4 -F /dev/video0 Device /dev/video0 opened. Device `stk1160' on `usb-0000:00:13.2-2' is a video capture device. Unable to set format: Invalid argument (22). localhost yavta # ./yavta -f UYVY -s 720x576 -n 4 --capture=4 -F /dev/video0 Device /dev/video0 opened. Device `stk1160' on `usb-0000:00:13.2-2' is a video capture device. Video format set: UYVY (59565955) 720x480 (stride 1440) buffer size 691200 Video format: UYVY (59565955) 720x480 (stride 1440) buffer size 691200 8 buffers requested. length: 691200 offset: 0 Buffer 0 mapped at address 0xb7584000. length: 691200 offset: 692224 Buffer 1 mapped at address 0xb74db000. length: 691200 offset: 1384448 Buffer 2 mapped at address 0xb7432000. length: 691200 offset: 2076672 Buffer 3 mapped at address 0xb7389000. length: 691200 offset: 2768896 Buffer 4 mapped at address 0xb72e0000. length: 691200 offset: 3461120 Buffer 5 mapped at address 0xb7237000. length: 691200 offset: 4153344 Buffer 6 mapped at address 0xb718e000. length: 691200 offset: 4845568 Buffer 7 mapped at address 0xb70e5000. 0 (0) [-] 0 691200 bytes 1340632305.824287 1826.669365 -0.002 fps 1 (1) [-] 1 691200 bytes 1340632305.856350 1826.709943 31.189 fps 2 (2) [-] 1 691200 bytes 1340632305.896222 1826.741385 25.080 fps 3 (3) [-] 2 691200 bytes 1340632305.928226 1826.773354 31.246 fps Captured 4 frames in 0.199372 seconds (20.062936 fps, 13867501.311552 B/s). 8 buffers released. -- 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
