[WPE-2.38] missing video in webrtc playback

[BunioFH]

when entering a game on Blacknut app: https://app.blacknut.com/?device=tv (15min demo available),
most of the time once phone is paired the game starts streaming without any issues.
but every 1/5 or so game starts first frame is shown, audio is played and reaction to keys
can still be connected with sounds produced. so it seems like proper video is generated somewhere.
webrtc logs show that stream is delivered properly and injected into gstreamer. device logs also show
that video is injected somewhere but it is not rendered anywhere.

here few possibilities that come to mind which I haven't had confirmed:

• that some entity just paused the video,
• timestamps on video are counted wrong
• video texture is not updated
• there is something different about the stream type used

compared logs from the situation that video runs to the one that it doesn't show only that frames are
not taken from the decoder. why it happens atm I can't tell

[philn]

I wasn't able to reproduce this yet. Can you get debug logs please? GST_DEBUG_FILE=/path/to/file.log GST_DEBUG="3,webkit*:9"