It's not clear how to request Media channels using CreateChannel. We need to work out how. Ideally, we want to pass TargetHandleType=CONTACT, TargetHandle (or TargetID), and some indication of whether to set up audio, video or both. Once we've worked out how, it should be implemented in telepathy-gabble.
On Friday we decided that requesting channels with no initial streams needs to be possible, so CMs should initially support CreateChannel({'TargetHandleType': CONTACT, 'TargetHandle': ..., 'ChannelType': 'StreamedMedia}). Later, we want to support CreateChannel({'TargetHandleType': CONTACT, 'TargetHandle': ..., 'ChannelType': 'StreamedMedia, 'InitialAudio': TRUE}) or something.
A draft version is present in 0.17.19. Awaiting implementations.
Review comments from the draft have been addressed in: http://git.collabora.co.uk/?p=user/smcv/telepathy-spec-smcv.git;a=shortlog;h=refs/heads/streamedmedia An implementation is still needed.
The patch on Bug #22934 undrafts IA/IV.
Release blocker, at this point.
Fixed in 0.17.28
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