[mythtv-users] USB vendor=534d device=2109

[Bob]

On 7/21/20 6:16 AM, Timothy Krantz wrote:
> I sent this yesterday and I do not believe it went through.  Apologies if this is a duplicate....
>>> Just curious if anyone has fooled around with one of these device with mythtv?
>>> Tim
> 
>> I would not expect everyone yo go run lsusb on their systems to see if they have one..  What is it?
> 
> You are correct of course.  As Stephen said it is a small USB HDMI capture device sold under MANY different names.
> 
> Tim

I was given one of these by a friend to evaluate as a replacement for an 
HDPVR. The short version of the story is my cable box reverts to 480p 
mode as soon as recording is attempted. I remove power from the cable 
box to have it reboot and it will return to 1080i mode. Again, if 
recording is attempted then the box displays "d2" and returns to 480p 
mode.  My guess is because this device does not support HDCP.

My friend was able to successfully capture and playback (recent 
Ubuntu/5.4.0-42-generic #46-Ubuntu) from this device, I was not (LinHes 
4.9.159-1-ARCH). Neither of us could get audio working using this command:

$ ffmpeg -f v4l2 -input_format mjpeg -i /dev/video4 -c:v copy -c:a copy 
test.mpg

More details below:

https://pastebin.com/pahhKPiP

$ ffmpeg -f v4l2  -list_formats all -i /dev/video4
[video4linux2,v4l2 @ 0x55bc6a350940] Compressed:       mjpeg : 
Motion-JPEG : 1920x1080 1600x1200 1360x768 1280x1024 1280x960 1280x720 
1024x768 800x600 720x576 720x480 640x480
[video4linux2,v4l2 @ 0x55bc6a350940] Raw       :     yuyv422 : 
YUYV 4:2:2 : 1920x1080 1600x1200 1360x768 1280x1024 1280x960 1280x720 
1024x768 800x600 720x576 720x480 640x480

$ v4l2-ctl -l -d /dev/video4
brightness (int)    : min=-128 max=127 step=1 default=-11 value=-11
contrast (int)    : min=0 max=255 step=1 default=148 value=148
saturation (int)    : min=0 max=255 step=1 default=180 value=180
hue (int)    : min=-128 max=127 step=1 default=0 value=0