Hi Adam, On Wed, Jun 21, 2017 at 04:34:41PM -0500, Adam Ford wrote: > I have a Leopard Imaging LI-5M03 camera attached in 8-bit mode, and I > am trying to capture an image on camera and stream it to the LCD > (/dev/fb0) without using the DSP or proprietary codecs. > > I was hoping to do it with either gstreamer (preferrably 1.0) or ffpeg. > > My board has mainline device tree (logicpd-torpedo-37xx-devkit). > ( have played wtih some of the settings, but nothing seems to make any > difference) > > > Using (https://github.com/Alaganraj/omap3isp/blob/master/0001-ARM-omap3-beagle-Add-.dtsi-for-the-LI-5M03-camera-se.patch) > as an example. > > Using Linux 4.11.y stable branch, I setup the camera as follows: > > media-ctl -v -r -l '"mt9p031 1-0048":0->"OMAP3 ISP CCDC":0[1], "OMAP3 > ISP CCDC":2->"OMAP3 ISP preview":0[1], "OMAP3 ISP preview":1->"OMAP3 > ISP resizer":0[1], "OMAP3 ISP resizer":1->"OMAP3 ISP resizer > output":0[1]' > > media-ctl -v -V '"mt9p031 1-0048":0 [SGRBG8 1298x970 > (664,541)/1298x970], "OMAP3 ISP CCDC":2 [SGRBG10 1298x970], "OMAP3 ISP > preview":1 [UYVY 1298x970], "OMAP3 ISP resizer":1 [UYVY 320x240]' > > > The media controller shows that this part appears to work correctly. > # media-ctl -p > Media controller API version 0.1.0 > > Media device information > ------------------------ > driver omap3isp > model TI OMAP3 ISP > serial > bus info > hw revision 0xf0 > driver version 0.0.0 > > Device topology > - entity 1: OMAP3 ISP CCP2 (2 pads, 2 links) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev0 > pad0: Sink > [fmt:SGRBG10_1X10/4096x4096 field:none] > <- "OMAP3 ISP CCP2 input":0 [] > pad1: Source > [fmt:SGRBG10_1X10/4096x4096 field:none] > -> "OMAP3 ISP CCDC":0 [] > > - entity 4: OMAP3 ISP CCP2 input (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video0 > pad0: Source > -> "OMAP3 ISP CCP2":0 [] > > - entity 8: OMAP3 ISP CSI2a (2 pads, 2 links) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev1 > pad0: Sink > [fmt:SGRBG10_1X10/4096x4096 field:none] > pad1: Source > [fmt:SGRBG10_1X10/4096x4096 field:none] > -> "OMAP3 ISP CSI2a output":0 [] > -> "OMAP3 ISP CCDC":0 [] > > - entity 11: OMAP3 ISP CSI2a output (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video1 > pad0: Sink > <- "OMAP3 ISP CSI2a":1 [] > > - entity 15: OMAP3 ISP CCDC (3 pads, 9 links) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev2 > pad0: Sink > [fmt:SGRBG12_1X12/1298x970 field:none] > <- "OMAP3 ISP CCP2":1 [] > <- "OMAP3 ISP CSI2a":1 [] > <- "mt9p031 1-0048":0 [ENABLED] > pad1: Source > [fmt:SGRBG12_1X12/1296x970 field:none > crop.bounds:(0,0)/1312x970 > crop:(0,0)/1296x970] > -> "OMAP3 ISP CCDC output":0 [] > -> "OMAP3 ISP resizer":0 [] > pad2: Source > [fmt:SGRBG10_1X10/1298x969 field:none] > -> "OMAP3 ISP preview":0 [ENABLED] > -> "OMAP3 ISP AEWB":0 [ENABLED,IMMUTABLE] > -> "OMAP3 ISP AF":0 [ENABLED,IMMUTABLE] > -> "OMAP3 ISP histogram":0 [ENABLED,IMMUTABLE] > > - entity 19: OMAP3 ISP CCDC output (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video2 > pad0: Sink > <- "OMAP3 ISP CCDC":1 [] > > - entity 23: OMAP3 ISP preview (2 pads, 4 links) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev3 > pad0: Sink > [fmt:SGRBG10_1X10/1298x969 field:none > crop.bounds:(10,4)/1280x961 > crop:(10,4)/1280x961] > <- "OMAP3 ISP CCDC":2 [ENABLED] > <- "OMAP3 ISP preview input":0 [] > pad1: Source > [fmt:UYVY8_1X16/1280x961 field:none] > -> "OMAP3 ISP preview output":0 [] > -> "OMAP3 ISP resizer":0 [ENABLED] > > - entity 26: OMAP3 ISP preview input (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video3 > pad0: Source > -> "OMAP3 ISP preview":0 [] > > - entity 30: OMAP3 ISP preview output (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video4 > pad0: Sink > <- "OMAP3 ISP preview":1 [] > > - entity 34: OMAP3 ISP resizer (2 pads, 4 links) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev4 > pad0: Sink > [fmt:UYVY8_1X16/1280x961 field:none > crop.bounds:(0,0)/1280x961 > crop:(0,0)/1280x961] > <- "OMAP3 ISP CCDC":1 [] > <- "OMAP3 ISP preview":1 [ENABLED] > <- "OMAP3 ISP resizer input":0 [] > pad1: Source > [fmt:UYVY8_1X16/320x240 field:none] > -> "OMAP3 ISP resizer output":0 [ENABLED] > > - entity 37: OMAP3 ISP resizer input (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video5 > pad0: Source > -> "OMAP3 ISP resizer":0 [] > > - entity 41: OMAP3 ISP resizer output (1 pad, 1 link) > type Node subtype V4L flags 1 > device node name /dev/video6 > pad0: Sink > <- "OMAP3 ISP resizer":1 [ENABLED] > > - entity 45: OMAP3 ISP AEWB (1 pad, 1 link) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev5 > pad0: Sink > <- "OMAP3 ISP CCDC":2 [ENABLED,IMMUTABLE] > > - entity 47: OMAP3 ISP AF (1 pad, 1 link) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev6 > pad0: Sink > <- "OMAP3 ISP CCDC":2 [ENABLED,IMMUTABLE] > > - entity 49: OMAP3 ISP histogram (1 pad, 1 link) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev7 > pad0: Sink > <- "OMAP3 ISP CCDC":2 [ENABLED,IMMUTABLE] > > - entity 81: mt9p031 1-0048 (1 pad, 1 link) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev8 > pad0: Source > [fmt:SGRBG12_1X12/1298x970 field:none > crop:(664,542)/1298x970] > -> "OMAP3 ISP CCDC":0 [ENABLED] > > # > > Unfortunately, when I run ffmpeg, I get a nothing but white pixels but > the resolution matches the resolution I configured as 320x240. > > export LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so > ffmpeg -an -re -i /dev/video6 -f v4l2 -vcodec rawvideo -pix_fmt > rgb565le -f fbdev /dev/fb0 > > > I got a bunch of repeated messages that read: > libv4l2: error dequeuing buf: Resource temporarily unavailable Could you see what does videobuf2 / V4L2 IOCTL handler tells? This should be roughly be enabled by: echo "file v4l2-ioctl.c +p" > /where/is/debugfs/dynamic_debug/control echo 1 > /sys/module/videobuf2_v4l2/parameters/debug echo 1 > /sys/module/videobuf2_core/parameters/debug And finally use dmesg to view the logs. I have to admit I haven't used GStreamer for a while, perhaps the kernel logs could tell something. Cc Laurent as well. -- Regards, Sakari Ailus e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx
