This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

(as stable API)

This object represents one Content inside a Call1. For example, in an audio/video call there would be one audio content and one video content. Each content has one or more Stream objects which represent the actual transport to one or more remote contacts.

There are two cases where multiple streams may happen:

Calls with more than two participants, if the protocol does not support multicast, and does not have mixer proxy.
With jingle, when calling a contact connected from multiple resources, a stream is created for each resource. Once the remote contact answered from one of its resources, all other streams get removed.

For protocols that support muting all streams of a given content separately, this object MAY also implement the Mute interface

previously there were no arguments Remove the content from the call. This will cause Call1.ContentRemoved((self_handle, User_Requested, "", "")) to be emitted.

Raised when a Call doesn't support removing contents (e.g. a Google Talk video call).

Extra interfaces provided by this content, such as Content.Interface.Media, Interface.Hold or Interface.Mute. This SHOULD NOT include the Content interface itself, and cannot change once the content has been created.

The name of the content.

The content name property should be meaningful, so should be given a name which is significant to the user. The name could be the "audio" or "video" string localized, or perhaps include some string identifying the source, such as a webcam identifier.

The media type of this content.

The disposition of this content, which defines whether to automatically start sending data on the streams when Accept is called on the channel. The content has no specific disposition.

The content was initially part of the call. When Accept is called on the channel, all streams of this content with LocalSendingState set to Pending_Send will be moved to Sending as if SetSending (True) had been called.

The disposition of this content. plural version, renamed from StreamAdded

Emitted when streams are added to a call.

The Streams which were added. plural version, renamed from StreamRemoved

Emitted when streams are removed from a call

The Streams which were removed. Why the content was removed.

The list of Stream objects that exist in this content.

In a conference call multiple parties can share one media content (say, audio), but the streaming of that media can either be shared or separate. For example, in a multicast conference all contacts would share one stream, while in a Muji conference there would be a stream for each participant.

Change notification is through the StreamsAdded and StreamsRemoved signals.