When capturing a raw stream from a webcam, the pipeline may hang up because the decodebin3 cannot fix the upstream caps. The webcam capsfilter should not only specify the captured mime-type (video/x-raw) but also the capture image dimensions.
Created attachment 459427 [details] Patch
Committed r294243 (250601@main): <https://commits.webkit.org/250601@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 459427 [details].
<rdar://problem/93357085>