Screen sharing

[totalasma]

Hi, are there any examples/instructions about how to enable screen-sharing?

[ssulzer]

Hi @totalasma,

You can enable a bot to receive screen sharing video from the caller. Having the bot be the screen sharer is not yet supported.

To add a screen sharing capability, create a receive-only VideoSocket and give it to MediaPlatform.CreateMediaConfiguration( ) as a vbssSocket; e.g.:

            // video socket for "vbss": video-based screen sharing
            _vbssSocket = new VideoSocket(new VideoSocketSettings
            {
                StreamDirections = StreamDirection.Recvonly,  // must be Recvonly
                ReceiveColorFormat = VideoColorFormat.NV12,
                CallId = correlationId
            });

            _vbssSocket.VideoMediaReceived += OnScreenSharingVideoMediaReceived;

            MediaConfiguration = MediaPlatform.CreateMediaConfiguration(
                            _audioSocket,
                            videoSockets: null,  // provide  a VideoSocket for "main" video if you want
                            vbssSocket: _vbssSocket);

Once the caller starts a screen share session, the vbssSocket should start delivering VideoBuffers to the VideoMediaReceived event handler.

[totalasma]

Thanks @ssulzer for advices, got screen share working with "null" videosocket parameter!

Although I did't get screensharing working with videosocket feed at the same time. Videosocket with screen sharing is using a ordered list type of object as parameter. I tried that with huebot and it leads to "you can't talk to this bot just yet, but we're working on it" message. Is videosocket event fired correctly on list (multiple objects subscribing to same event) or could you have example about this aswell? Thanks in advance.

SOLVED this by defining list to fixed array of videosockets.

VideoSocket[] videoSockets = new VideoSocket[1]; videoSockets[0] = _videoSocket;

[totalasma]

Is it possible to save videoSocket and screen sharing socket at the same time?

[ssulzer]

Yes, you can create a VideoSocket for "primary" video and one for screen sharing:

        // video socket for primary video
        _videoSocket = new VideoSocket(new VideoSocketSettings
        {
            StreamDirections = StreamDirection.Sendrecv,
            ReceiveColorFormat = VideoColorFormat.NV12,
            SupportedSendVideoFormats = // list of video send formats 
            CallId = correlationId
        });

        // video socket for "vbss": video-based screen sharing
        _vbssSocket = new VideoSocket(new VideoSocketSettings
        {
            StreamDirections = StreamDirection.Recvonly,  // must be Recvonly
            ReceiveColorFormat = VideoColorFormat.NV12,
            CallId = correlationId
        });

        _videoSocket.VideoMediaReceived += OnPrimaryVideoMediaReceived;
        _vbssSocket.VideoMediaReceived += OnScreenSharingVideoMediaReceived;

        MediaConfiguration = MediaPlatform.CreateMediaConfiguration(
                        _audioSocket,
                        videoSockets: new List<VideoSocket> { _videoSocket },
                        vbssSocket: _vbssSocket);

[totalasma]

@ssulzer videoSockets parameter for MediaPlatform.CreateMediaConfiguration is not working. It suggests that it can not convert System.Collection.List to System.Collection.IList<Microsoft.Skype.Bots.Media.IVideoSocket. I have installed Microsoft.Skype.Bots.Media v 1.8.0.261-alpha.

[frleger]

@totalasma Try creating the video sockets list as a List< IVideoSocket>

ie. new List< IVideoSocket> { _videoSocket }, instead of new List< VideoSocket> { _videoSocket },

[totalasma]

Thanks @frleger that worked. It now opens not video socket and screensharing socket streams.