Im having problems with the following design:
I have created a "test pattern generator" to produce a axis rgba stream. I cannot get the video framebuffer writer to accept the data, here's a ila screenshot:
the data in this case is 128x128 pixels 2pixels/sample = 64bit tdata.
framebuffer writer is configured for alpha channel.
here's a dump of registers on vfbw when I run:
Dump from linux:
# media-ctl -v -V '"bvip":0 [fmt:RBG888_1X24/128x128 field:none]'
Opening media device /dev/media0
Enumerating entities
Found 2 entities
Enumerating pads and links
Setting up format RBG888_1X24 128x128 on pad bvip/0/0
Format set: RBG888_1X24 128x128
# v4l2-ctl -d /dev/video0 --list-formats-ext --all
Driver Info:
Driver name : xilinx-vipp
Card type : video_cap output 0
Bus info : platform:video_cap:0
Driver version : 6.12.40
Capabilities : 0x84201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (bvip: ok)
Format Video Capture Multiplanar:
Width/Height : 128/128
Pixel Format : 'RX24' (32-bit XBGR 8-8-8-8)
Field : None
Number of planes : 1
Flags :
Colorspace : Default
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Default
Plane 0 :
Bytes per Line : 512
Size Image : 65536
Selection Video Capture: compose, Left 0, Top 0, Width 128, Height 128, Flags:
Selection Video Capture: compose_default, Left 0, Top 0, Width 128, Height 128, Flags:
Selection Video Capture: compose_bounds, Left 0, Top 0, Width 128, Height 128, Flags:
Selection Video Output: crop, Left 0, Top 0, Width 128, Height 128, Flags:
Selection Video Output: crop_default, Left 0, Top 0, Width 128, Height 128, Flags:
Selection Video Output: crop_bounds, Left 0, Top 0, Width 128, Height 128, Flags:
User Controls
low_latency_controls 0x0098ca21 (int) : min=2 max=8 step=1 default=4 value=4
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture Multiplanar
[0]: 'RX24' (32-bit XBGR 8-8-8-8)
[1]: 'XR24' (32-bit BGRX 8-8-8-8)
[2]: 'RGB3' (24-bit RGB 8-8-8)
[3]: 'BGR3' (24-bit BGR 8-8-8)
#
and here's how I run capture.
Ive got it all working with the xilinx tpg, but in that case only with 24bits data, since tpg cannot produce alpha.
Any ideas as to what's going wrong ?
Br
Matias