Can't get image from PCam 5C running on Zybo Z7-20 with peta

[Swapnil Patil]

Hello folks,


I am running Zybo Z7-20 Pcam petalinux project on Zybo Z7-20 board.

From README.md file below command will create 14 image files in current directory

yavta -c14 -f YUYV -s "$width"x"$height" -F /dev/video0

when we test similarly our log stucks as per below

root@test0:~# yavta -c1 -f YUYV -s "$width"x"$height" -F /dev/video0
Device /dev/video0 opened.
Device `video_cap output 0' on `platform:video_cap:0' is a video output (without mplanes) device.
Video format set: YUYV (56595559) 1280x720 field none, 1 planes:
* Stride 2560, buffer size 1843200
Video format: YUYV (56595559) 1280x720 field none, 1 planes:
* Stride 2560, buffer size 1843200
8 buffers requested.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 0/0 mapped at address 0xb6c29000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 1/0 mapped at address 0xb6a67000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 2/0 mapped at address 0xb68a5000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 3/0 mapped at address 0xb66e3000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 4/0 mapped at address 0xb6521000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 5/0 mapped at address 0xb635f000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 6/0 mapped at address 0xb619d000.
length: 1 offset: 3201100384 timestamp type/source: mono/EoF
Buffer 7/0 mapped at address 0xb5fdb000.

from this we are not sure whether the images created or not.

when we run media device information command(media-ctl -p)

we get following log

root@test0:~# media-ctl -p
Media controller API version 4.9.0

Media device information
------------------------
driver xilinx-video
model Xilinx Video Composite Device
serial
bus info
hw revision 0x0
driver version 4.9.0

Device topology
- entity 1: video_cap output 0 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
<- "43c60000.mipi_csi2_rx_subsystem":0 [ENABLED]

- entity 5: ov5640 1-003c (1 pad, 1 link)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev0
pad0: Source
[fmt:UYVY/1280x720 field:none]
-> "43c60000.mipi_csi2_rx_subsystem":1 [ENABLED]

- entity 7: 43c60000.mipi_csi2_rx_subsystem (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev1
pad0: Source
[fmt:UYVY/1280x720 field:none]
-> "video_cap output 0":0 [ENABLED]
pad1: Sink
[fmt:UYVY/1280x720 field:none]
<- "ov5640 1-003c":0 [ENABLED]

when we run v4l2-ctl --all,


root@test0:~# v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : xilinx-vipp
Card type : video_cap output 0
Bus info : platform:video_cap:0
Driver version: 4.9.0
Capabilities : 0x84201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Priority: 2
Format Video Capture Multiplanar:
Width/Height : 1280/720
Pixel Format : 'YUYV'
Field : None
Number of planes : 1
Flags :
Colorspace : Default
Transfer Function : Default
YCbCr Encoding : Default
Quantization : Default
Plane 0 :
Bytes per Line : 2560
Size Image : 1843200
root@test0:~#

Thanks in advance.