CODEWITHSUNDEEP
chromecastgoogle-cast
philippe_44
philippe_44

Reputation: 367

Control Chromecast buffering at start

Is there a way to control the amount of buffering CC devices do before they start playback?

My sender apps sends real time audio flac and CC waits +10s before starting to play. I've built a customer receiver and tried to change the autoPauseDuration and autoResumeDuration but it does not seem to matter. I assume it's only used when an underflow event happens, but not at startup.

I realize that forcing a start with low buffering level might endup in underflow, but that's a "risk" that is much better than always waiting such a long time before playback starts. And if it happens, the autoPause/Resume hysteresis would allow a larger re-buffering to take place then.

Upvotes: 1

Views: 924

Answers (2)

philippe_44
philippe_44

Reputation: 367

Finally, it turned to be a problem with the way to send audio to the default receiver. I was streaming flac, and as it is a streamable format, I did not include any header (you might be able to start anywhere in the stream, it's just a matter of finding the synchro). But the flac decoder in the CC does not like that and was talking 10+ second to start. As soon as I've added a STREAMINFO header, problem went away

Upvotes: 1

Leon Nicholls
Leon Nicholls

Reputation: 4646

If you are using the Media Player Library, take a look at player.getBufferDuration. The docs cover more details about how you can customize the player behavior: https://developers.google.com/cast/docs/player#frequently-asked-questions

Upvotes: 2

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