Hello community. I’ve tinkered with this in the past but I wanted to share my knowledge and maybe @brajesh and his team could expand it into a nice premium plugin.

My idea was to have users have a custom Twitch.tv tab in buddypress with the stream/chat. I wanted to expand this so that it would have a rating system for logged in users to give the user a star rating or a thumbs up like type system. This would then allow the live streamer to show up higher in the “all online streams” page.

Add Twitch.tv tab to buddypress:
https://premium.wpmudev.org/forums/topic/buddypress-add-twitch-channelchat-api

Here is the Twitch.tv API:
https://github.com/justintv/Twitch-API/blob/master/embed-video.md

Here is the code for a page of live streamers:

Add this to the theme’s function.php :

/**
					 * GET CHANNEL STREAM INFO
					 *
					 * sends a request to the twitch api and retrieve the stream data
					 * full list of returned data here: https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel
					 *
					 * #param	{string}	$channel	(required)	slug of the channel
					 *
					 * #return	{array}	$stream_data			array with info related to the channel
					 */

					function ap_get_channel_stream($channel) {
							// send a request to twitch streams api
							$twitch_call = file_get_contents('https://api.twitch.tv/kraken/streams/'.$channel);
							$stream_data = json_decode($twitch_call, true);
							// return the data
							return $stream_data;
					}

					/**
					 * CHECK IF CHANNEL IS LIVE
					 *
					 * #uses ap_get_channel_stream()	to get the stream data for the given channel
					 *
					 * #param	{string}	$channel	(required)	the slug of the channel
					 *
					 * #return	{bool}		true if channel is live, false if not
					 */

					function ap_is_channel_live( $channel ) {
						$stream_data = ap_get_channel_stream($channel);
						return ( ! is_null( $stream_data['stream'] ) ) ? TRUE : FALSE;
					}

					/**
					 * DISPLAY THE LIVE STREAM
					 *
					 * embed the video stream of a given channel
					 *
					 * #param	{string}	$channel	(required) the slug of the channel
					 *
					 * #return	{echo}		print the iframe for the video player
					 */

					function ap_display_channel_stream($channel){
						echo '<iframe src="http://player.twitch.tv/?channel='. $channel .'" height="720" width="1280" frameborder="0" scrolling="no" allowfullscreen></iframe>';                        

					}

then in a custom page template add this:

// get all users and loop them
					$users = get_users();
					foreach ( $users as $user ){
						// get the channel
						unset($channel);
						$channel = bp_get_profile_field_data('field=Channel Name&user_id=' . $user->ID );	

						// if we've got a channel name, check if online and eventually display something
						if ( $channel ){
							if ( ap_is_channel_live($channel) ){

								// you could display the video stream directly with ap_display_channel_stream($channel);
								// but then you'll have multiple videos on the same page..

								// you can retrieve and use various stream info
								unset($channel_data);
								$channel_data = ap_get_channel_stream($channel);

								// then by instance you could display the name of the channel and the viewers
								echo $channel_data['stream']['channel']['display_name'];
								echo 'viewers: '.$channel_data['stream']['viewers'];

								// or the preview image, linking to their profile on your site
								echo '<a href="'.bp_core_get_user_domain( $user->ID ).'"><img src="'.$channel_data['preview']['medium'].'"></a>';

							}
						}
					}