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.