On Tue, Dec 27, 2022 at 07:14:46PM +0100, Bodie wrote: [...]
> You may find this interesting: > > https://www.usb.org/documents?search=video&category%5B%5D=49&type%5B%5D=55&items_per_page=50 > > 4.3.1.1 Video Probe and Commit Controls > The streaming parameters selection process is based on a shared negotiation > model between the > host and the video streaming interface, taking into account the following > features: > - shared nature of the USB > - interdependency of streaming parameters > - payload independence > - modification of streaming parameters during streaming > This negotiation model is supported by the Video Probe and Commit controls. > The Probe control > allows retrieval and negotiation of streaming parameters. When an acceptable > combination of > streaming parameters has been obtained, the Commit control is used to > configure the hardware > with the negotiated parameters from the Probe control. > > Based on issues reported in Linux with various camera often pointing > to too big bandwith and fixing the problem with setting up > different stream size you may try to play with settings over > video(1) to set different formats for your stream as Chrome-based > browsers are probably trying to set camera differently then FF > (but is just my guess really based on info so far plus those > specs documents describing STALL protocol as well) Thank you again, quite relevant! So I will try to play with different settings to see what happens. Hopefully, I will succeed. In any case I will report here the results. I am truly grateful for your time. -- Robert
