I've been trying 3.0.0 to test the Chromecast feature and while scanning and connecting is not at all an issue playback doesn't work. I tried this with couple files and it seems that it starts playing back with no issues, quality and sync is great but it freezes after couple seconds.
Attached is log.
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I also had a similar problem. I'll attach my own log if I remember later. In my case though, I was watching an RTSP stream (security camera) and rendering it to chromecast.
I had a look at srzon's log and I saw those messages at the end repeating with not update to the screen.
stream_out_chromecast debug: receiver idle using buffering time 1
stream_out_chromecast debug: receiver idle using buffering time 1
stream_out_chromecast debug: setHasInput waiting for Chromecast connection, current 0
The screen continued to show for me, but wasn't updating. Also, when I stopped VLC and tried to start again, it didn't work. Chromecast had paused and I had to restart the chromecast (powercycle)
Given this is a new feature in v3, and experienced by more than one person, I suggest this is a higher priority issue.
I tested it again, and watched for the moment that it stops working
stream_out_chromecast stream out debug: processMessage: urn:x-cast:com.google.cast.media->* {"type":"MEDIA_STATUS","status":[{"mediaSessionId":1,"playbackRate":1,"playerState":"BUFFERING","currentTime":176461.785533,"supportedMediaCommands":15,"volume":{"level":1,"muted":false},"videoInfo":{"width":928,"height":576,"hdrType":"sdr"},"currentItemId":1,"repeatMode":"REPEAT_OFF"}],"requestId":0}stream_out_chromecast stream out debug: Player state: BUFFERING sessionId:1stream_out_chromecast stream out debug: Playback pending with an offset of 176462000000stream_out_chromecast stream out debug: Switching from state Playing to Bufferingstream_out_chromecast stream out debug: receiver buffering using buffering time 1stream_out_chromecast stream out debug: receiver buffering using buffering time 1stream_out_chromecast stream out debug: receiver buffering using buffering time 1
I'm guessing it stops working when it switches from Playing to Buffering
I experience the same problem with playback to a v2 chromecast.
Sometimes playback works for a couple of seconds then freezes.
Sometimes no playback at all - just the buffering progress bar - until I press stop in vlc then 2 seconds of playback.