DataChannel - Is the RTCDataChannel supported?

[whydna]

I'm trying to use the RTCDataChannel in the nighthawk build, but it doesn't seem to be fully supported?

• The bufferedAmount property always seems to be zero.
• Doesn't seem to be a way to configure the channel to be in reliable mode - the RTCDataChannelInit doesn't have this property, and RTCDataChannel.isReliable is readonly.
• Setting maxRetransmits results in a crash (although I believe this is a chrome Issue)

Any advice?

[ceaglest]

@whydna Unfortunately I can't offer too much advice because I haven't tried this myself. I know that the offers/answers are generated with the optional internalSctpDataChannels constraint, so in theory this should be enough to get things started. Also, later versions of Chrome probably have better support than m45.

Are you calling:

- (RTCDataChannel*)createDataChannelWithLabel:(NSString*)label
                                       config:(RTCDataChannelInit*)config;

Before creating offers/answers? If you don't already have a channel created then the SDPs will not reflect this, and the channel will not be negotiated regardless of the optional constraint added.

[whydna]

@ceaglest Just wanted to reply here and say it works as expected.

Thanks!