media-add-ons/opensound/OpenSoundNode.cpp

244 // TODO: it is not clear to me how buffer group responsibility is supposed
250 // the given buffer group. In any case, the fUsingOwnBufferGroup is correclty
253 // have not tested yet, whether an external buffer group is passed to the node
1089 	// Are we being passed the buffer group we're already using?
1093 	// Ahh, someone wants us to use a different buffer group.  At this point
1095 	// the specified group is NULL, we need to recreate one ourselves, and
1098 	// group, otherwise we'll deadlock waiting for that buffer to be recycled!
1102 		// we were given a valid group; just use that one from now on
1105 		// we were passed a NULL group pointer; that means we construct
1106 		// our own buffer group to use from now on
1243 	// Set up the buffer group for our connection, as long as nobody handed us
1244 	// a buffer group (via SetBufferGroup()) prior to this.  That can happen,
1941 OpenSoundNode::_ProcessGroup(BParameterGroup *group, int32 index,
1953 		// only keep direct children of that group
1969 		// should actually rename the whole group but it's too late there.
1987 			child = group->MakeGroup(childName);
1996 				group->MakeDiscreteParameter(i, B_MEDIA_RAW_AUDIO, childName,
1999 				group->MakeDiscreteParameter(i, B_MEDIA_RAW_AUDIO, childName,
2003 				(group->ParameterAt(nbParameters - 1))->AddOutput(
2004 					group->ParameterAt(nbParameters));
2012 				group->MakeDiscreteParameter(i, B_MEDIA_RAW_AUDIO, childName,
2015 				(group->ParameterAt(nbParameters - 1))->AddOutput(
2016 					group->ParameterAt(nbParameters));
2044 			group->MakeContinuousParameter(i, B_MEDIA_RAW_AUDIO, childName,
2051 				group->ParameterAt(nbParameters)->SetChannelCount(2);
2055 				(group->ParameterAt(nbParameters - 1))->AddOutput(
2056 					group->ParameterAt(nbParameters));