webrtc example: Add test for priority field

This helps test gst-plugins-bad!1425 (merged), and it also requires gst-plugins-good!666 (merged)

mentioned in merge request gst-plugins-bad!1425 (merged)

resolved all threads

added 1 commit

• dc2834a4 - webrtc sendonly: Add priority to example

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added 4 commits

• 61d200a9 - 1 commit from branch gstreamer:master
• f314a1ed - webrtc sendonly: Exit on bus errors
• 3411fcad - webrtc sendonly: Add videoscale to avoid webcam compat issues
• e73a680e - webrtc sendonly: Add priority to example

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added 17 commits

• e73a680e...43f8275c - 14 commits from branch gstreamer:master
• 750f5e9d - webrtc sendonly: Exit on bus errors
• 175f3dfd - webrtc sendonly: Add videoscale to avoid webcam compat issues
• ab09b03b - webrtc sendonly: Add priority to example

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assigned to @gstreamer-merge-bot

mentioned in commit ocrete/gst-examples@6f54a726

mentioned in commit ocrete/gst-examples@a366f35e

mentioned in commit ocrete/gst-examples@f021658e

added 3 commits

• 6f54a726 - webrtc sendonly: Exit on bus errors
• a366f35e - webrtc sendonly: Add videoscale to avoid webcam compat issues
• f021658e - webrtc sendonly: Add priority to example

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assigned to @ocrete and unassigned @gstreamer-merge-bot

I couldn't merge this branch: CI failed!

added 3 commits

• 3e723eba - webrtc sendonly: Exit on bus errors
• 55af9315 - webrtc sendonly: Add videoscale to avoid webcam compat issues
• 825c5977 - webrtc sendonly: Add priority to example

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assigned to @gstreamer-merge-bot and unassigned @ocrete

mentioned in commit ocrete/gst-examples@4d064280

mentioned in commit ocrete/gst-examples@992cb3c5

mentioned in commit ocrete/gst-examples@4e141f10

added 3 commits

• 4d064280 - webrtc sendonly: Exit on bus errors
• 992cb3c5 - webrtc sendonly: Add videoscale to avoid webcam compat issues
• 4e141f10 - webrtc sendonly: Add priority to example

Compare with previous version

assigned to @ocrete and unassigned @gstreamer-merge-bot