Re: [Sony RX100 VII] Camera does not seem to return a JPEG image in LiveView mode

On Wed, Nov 04, 2020 at 08:08:21PM +0000, Munshine wrote:
> Hello!
> 
> I'm a newbie trying to turn his Sony RX100 VII into a webcam. I've been following this very clear tutorial (https://medium.com/nerdery/dslr-webcam-setup-for-linux-9b6d1b79ae22), although I'm getting stuck at a certain point:
> When I execute gphoto2 --stdout --capture-movie | ffmpeg -hwaccel nvdec -c:v mjpeg_cuvid -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0
> I get the following message:
> *** Error ***
> Sorry, your Sony camera does not seem to return a JPEG image in LiveView mode
> ERROR: Movie capture error... Exiting.
> Movie capture finished (0 frames)
> pipe:: Invalid data found when processing input
> 
> Unfortunately, I'm really not an advanced linux/gphoto user, so I don't know how to troubleshoot this.
> All I can say is that I just found this gtihub issue (https://github.com/gphoto/libgphoto2/issues/180) with a similar message, but I'm not sure it actually is the same issue as me.
> I'm using LinuxMint 20, using gphoto2 2.5.23 and libgphoto2 2.5.25.

WWhat is 

gphoto2 --auto-detect

reporting? if it is reporting USB PTP generic class camera, please also report

	lsusb | grep Sony

The usb id is interesting for us to track it, but not necessary required for support.

	gphoto2 --summary >summary.txt

Please include summary.txt in your reply:

also report if capture works:
	gphoto2 --capture-image-and-download

Ciao, Marcus