/usr/share/janus/demos/streamingtest.js is in janus-demos 0.2.6-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// REST Janus API. By default, in this example we assume that Janus is
// co-located with the web server hosting the HTML pages but listening
// on a different port (8088, the default for HTTP in Janus), which is
// why we make use of the 'window.location.hostname' base address. Since
// Janus can also do HTTPS, and considering we don't really want to make
// use of HTTP for Janus if your demos are served on HTTPS, we also rely
// on the 'window.location.protocol' prefix to build the variable, in
// particular to also change the port used to contact Janus (8088 for
// HTTP and 8089 for HTTPS, if enabled).
// In case you place Janus behind an Apache frontend (as we did on the
// online demos at http://janus.conf.meetecho.com) you can just use a
// relative path for the variable, e.g.:
//
// var server = "/janus";
//
// which will take care of this on its own.
//
//
// If you want to use the WebSockets frontend to Janus, instead, you'll
// have to pass a different kind of address, e.g.:
//
// var server = "ws://" + window.location.hostname + ":8188";
//
// Of course this assumes that support for WebSockets has been built in
// when compiling the gateway. WebSockets support has not been tested
// as much as the REST API, so handle with care!
//
//
// If you have multiple options available, and want to let the library
// autodetect the best way to contact your gateway (or pool of gateways),
// you can also pass an array of servers, e.g., to provide alternative
// means of access (e.g., try WebSockets first and, if that fails, fall
// back to plain HTTP) or just have failover servers:
//
// var server = [
// "ws://" + window.location.hostname + ":8188",
// "/janus"
// ];
//
// This will tell the library to try connecting to each of the servers
// in the presented order. The first working server will be used for
// the whole session.
//
var server = null;
if(window.location.protocol === 'http:')
server = "http://" + window.location.hostname + ":8088/janus";
else
server = "https://" + window.location.hostname + ":8089/janus";
var janus = null;
var streaming = null;
var opaqueId = "streamingtest-"+Janus.randomString(12);
var started = false;
var bitrateTimer = null;
var spinner = null;
var simulcastStarted = false;
var selectedStream = null;
$(document).ready(function() {
// Initialize the library (all console debuggers enabled)
Janus.init({debug: "all", callback: function() {
// Use a button to start the demo
$('#start').click(function() {
if(started)
return;
started = true;
$(this).attr('disabled', true).unbind('click');
// Make sure the browser supports WebRTC
if(!Janus.isWebrtcSupported()) {
bootbox.alert("No WebRTC support... ");
return;
}
// Create session
janus = new Janus(
{
server: server,
success: function() {
// Attach to streaming plugin
janus.attach(
{
plugin: "janus.plugin.streaming",
opaqueId: opaqueId,
success: function(pluginHandle) {
$('#details').remove();
streaming = pluginHandle;
Janus.log("Plugin attached! (" + streaming.getPlugin() + ", id=" + streaming.getId() + ")");
// Setup streaming session
$('#update-streams').click(updateStreamsList);
updateStreamsList();
$('#start').removeAttr('disabled').html("Stop")
.click(function() {
$(this).attr('disabled', true);
clearInterval(bitrateTimer);
janus.destroy();
$('#streamslist').attr('disabled', true);
$('#watch').attr('disabled', true).unbind('click');
$('#start').attr('disabled', true).html("Bye").unbind('click');
});
},
error: function(error) {
Janus.error(" -- Error attaching plugin... ", error);
bootbox.alert("Error attaching plugin... " + error);
},
onmessage: function(msg, jsep) {
Janus.debug(" ::: Got a message :::");
Janus.debug(msg);
var result = msg["result"];
if(result !== null && result !== undefined) {
if(result["status"] !== undefined && result["status"] !== null) {
var status = result["status"];
if(status === 'starting')
$('#status').removeClass('hide').text("Starting, please wait...").show();
else if(status === 'started')
$('#status').removeClass('hide').text("Started").show();
else if(status === 'stopped')
stopStream();
} else if(msg["streaming"] === "event") {
// Is simulcast in place?
var substream = result["substream"];
var temporal = result["temporal"];
if((substream !== null && substream !== undefined) || (temporal !== null && temporal !== undefined)) {
if(!simulcastStarted) {
simulcastStarted = true;
addSimulcastButtons();
}
// We just received notice that there's been a switch, update the buttons
updateSimulcastButtons(substream, temporal);
}
}
} else if(msg["error"] !== undefined && msg["error"] !== null) {
bootbox.alert(msg["error"]);
stopStream();
return;
}
if(jsep !== undefined && jsep !== null) {
Janus.debug("Handling SDP as well...");
Janus.debug(jsep);
// Answer
streaming.createAnswer(
{
jsep: jsep,
media: { audioSend: false, videoSend: false }, // We want recvonly audio/video
success: function(jsep) {
Janus.debug("Got SDP!");
Janus.debug(jsep);
var body = { "request": "start" };
streaming.send({"message": body, "jsep": jsep});
$('#watch').html("Stop").removeAttr('disabled').click(stopStream);
},
error: function(error) {
Janus.error("WebRTC error:", error);
bootbox.alert("WebRTC error... " + JSON.stringify(error));
}
});
}
},
onremotestream: function(stream) {
Janus.debug(" ::: Got a remote stream :::");
Janus.debug(stream);
if($('#remotevideo').length > 0) {
// Been here already: let's see if anything changed
var videoTracks = stream.getVideoTracks();
if(videoTracks && videoTracks.length > 0 && !videoTracks[0].muted) {
$('#novideo').remove();
if($("#remotevideo").get(0).videoWidth)
$('#remotevideo').show();
}
return;
}
$('#stream').append('<video class="rounded centered hide" id="remotevideo" width=320 height=240 autoplay/>');
// Show the stream and hide the spinner when we get a playing event
$("#remotevideo").bind("playing", function () {
$('#waitingvideo').remove();
if(this.videoWidth)
$('#remotevideo').removeClass('hide').show();
if(spinner !== null && spinner !== undefined)
spinner.stop();
spinner = null;
var videoTracks = stream.getVideoTracks();
if(videoTracks === null || videoTracks === undefined || videoTracks.length === 0)
return;
var width = this.videoWidth;
var height = this.videoHeight;
$('#curres').removeClass('hide').text(width+'x'+height).show();
if(Janus.webRTCAdapter.browserDetails.browser === "firefox") {
// Firefox Stable has a bug: width and height are not immediately available after a playing
setTimeout(function() {
var width = $("#remotevideo").get(0).videoWidth;
var height = $("#remotevideo").get(0).videoHeight;
$('#curres').removeClass('hide').text(width+'x'+height).show();
}, 2000);
}
});
var videoTracks = stream.getVideoTracks();
if(videoTracks && videoTracks.length &&
(Janus.webRTCAdapter.browserDetails.browser === "chrome" ||
Janus.webRTCAdapter.browserDetails.browser === "firefox" ||
Janus.webRTCAdapter.browserDetails.browser === "safari")) {
$('#curbitrate').removeClass('hide').show();
bitrateTimer = setInterval(function() {
// Display updated bitrate, if supported
var bitrate = streaming.getBitrate();
//~ Janus.debug("Current bitrate is " + streaming.getBitrate());
$('#curbitrate').text(bitrate);
// Check if the resolution changed too
var width = $("#remotevideo").get(0).videoWidth;
var height = $("#remotevideo").get(0).videoHeight;
if(width > 0 && height > 0)
$('#curres').removeClass('hide').text(width+'x'+height).show();
}, 1000);
}
Janus.attachMediaStream($('#remotevideo').get(0), stream);
var videoTracks = stream.getVideoTracks();
if(videoTracks === null || videoTracks === undefined || videoTracks.length === 0 || videoTracks[0].muted) {
// No remote video
$('#remotevideo').hide();
$('#stream').append(
'<div id="novideo" class="no-video-container">' +
'<i class="fa fa-video-camera fa-5 no-video-icon"></i>' +
'<span class="no-video-text">No remote video available</span>' +
'</div>');
}
},
oncleanup: function() {
Janus.log(" ::: Got a cleanup notification :::");
$('#waitingvideo').remove();
$('#remotevideo').remove();
$('.no-video-container').remove();
$('#bitrate').attr('disabled', true);
$('#bitrateset').html('Bandwidth<span class="caret"></span>');
$('#curbitrate').hide();
if(bitrateTimer !== null && bitrateTimer !== undefined)
clearInterval(bitrateTimer);
bitrateTimer = null;
$('#curres').hide();
$('#simulcast').remove();
simulcastStarted = false;
}
});
},
error: function(error) {
Janus.error(error);
bootbox.alert(error, function() {
window.location.reload();
});
},
destroyed: function() {
window.location.reload();
}
});
});
}});
});
function updateStreamsList() {
$('#update-streams').unbind('click').addClass('fa-spin');
var body = { "request": "list" };
Janus.debug("Sending message (" + JSON.stringify(body) + ")");
streaming.send({"message": body, success: function(result) {
setTimeout(function() {
$('#update-streams').removeClass('fa-spin').click(updateStreamsList);
}, 500);
if(result === null || result === undefined) {
bootbox.alert("Got no response to our query for available streams");
return;
}
if(result["list"] !== undefined && result["list"] !== null) {
$('#streams').removeClass('hide').show();
$('#streamslist').empty();
$('#watch').attr('disabled', true).unbind('click');
var list = result["list"];
Janus.log("Got a list of available streams");
Janus.debug(list);
for(var mp in list) {
Janus.debug(" >> [" + list[mp]["id"] + "] " + list[mp]["description"] + " (" + list[mp]["type"] + ")");
$('#streamslist').append("<li><a href='#' id='" + list[mp]["id"] + "'>" + list[mp]["description"] + " (" + list[mp]["type"] + ")" + "</a></li>");
}
$('#streamslist a').unbind('click').click(function() {
selectedStream = $(this).attr("id");
$('#streamset').html($(this).html()).parent().removeClass('open');
return false;
});
$('#watch').removeAttr('disabled').click(startStream);
}
}});
}
function startStream() {
Janus.log("Selected video id #" + selectedStream);
if(selectedStream === undefined || selectedStream === null) {
bootbox.alert("Select a stream from the list");
return;
}
$('#streamset').attr('disabled', true);
$('#streamslist').attr('disabled', true);
$('#watch').attr('disabled', true).unbind('click');
var body = { "request": "watch", id: parseInt(selectedStream) };
streaming.send({"message": body});
// No remote video yet
$('#stream').append('<video class="rounded centered" id="waitingvideo" width=320 height=240 />');
if(spinner == null) {
var target = document.getElementById('stream');
spinner = new Spinner({top:100}).spin(target);
} else {
spinner.spin();
}
}
function stopStream() {
$('#watch').attr('disabled', true).unbind('click');
var body = { "request": "stop" };
streaming.send({"message": body});
streaming.hangup();
$('#streamset').removeAttr('disabled');
$('#streamslist').removeAttr('disabled');
$('#watch').html("Watch or Listen").removeAttr('disabled').click(startStream);
$('#status').empty().hide();
$('#bitrate').attr('disabled', true);
$('#bitrateset').html('Bandwidth<span class="caret"></span>');
$('#curbitrate').hide();
if(bitrateTimer !== null && bitrateTimer !== undefined)
clearInterval(bitrateTimer);
bitrateTimer = null;
$('#curres').empty().hide();
$('#simulcast').remove();
simulcastStarted = false;
}
// Helpers to create Simulcast-related UI, if enabled
function addSimulcastButtons() {
$('#curres').parent().append(
'<div id="simulcast" class="btn-group-vertical btn-group-vertical-xs pull-right">' +
' <div class"row">' +
' <div class="btn-group btn-group-xs" style="width: 100%">' +
' <button id="sl-2" type="button" class="btn btn-primary" data-toggle="tooltip" title="Switch to higher quality" style="width: 33%">SL 2</button>' +
' <button id="sl-1" type="button" class="btn btn-primary" data-toggle="tooltip" title="Switch to normal quality" style="width: 33%">SL 1</button>' +
' <button id="sl-0" type="button" class="btn btn-primary" data-toggle="tooltip" title="Switch to lower quality" style="width: 34%">SL 0</button>' +
' </div>' +
' </div>' +
' <div class"row">' +
' <div class="btn-group btn-group-xs" style="width: 100%">' +
' <button id="tl-2" type="button" class="btn btn-primary" data-toggle="tooltip" title="Cap to temporal layer 2" style="width: 34%">TL 2</button>' +
' <button id="tl-1" type="button" class="btn btn-primary" data-toggle="tooltip" title="Cap to temporal layer 1" style="width: 33%">TL 1</button>' +
' <button id="tl-0" type="button" class="btn btn-primary" data-toggle="tooltip" title="Cap to temporal layer 0" style="width: 33%">TL 0</button>' +
' </div>' +
' </div>' +
'</div>');
// Enable the VP8 simulcast selection buttons
$('#sl-0').removeClass('btn-primary btn-success').addClass('btn-primary')
.unbind('click').click(function() {
toastr.info("Switching simulcast substream, wait for it... (lower quality)", null, {timeOut: 2000});
if(!$('#sl-2').hasClass('btn-success'))
$('#sl-2').removeClass('btn-primary btn-info').addClass('btn-primary');
if(!$('#sl-1').hasClass('btn-success'))
$('#sl-1').removeClass('btn-primary btn-info').addClass('btn-primary');
$('#sl-0').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
streaming.send({message: { request: "configure", substream: 0 }});
});
$('#sl-1').removeClass('btn-primary btn-success').addClass('btn-primary')
.unbind('click').click(function() {
toastr.info("Switching simulcast substream, wait for it... (normal quality)", null, {timeOut: 2000});
if(!$('#sl-2').hasClass('btn-success'))
$('#sl-2').removeClass('btn-primary btn-info').addClass('btn-primary');
$('#sl-1').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
if(!$('#sl-0').hasClass('btn-success'))
$('#sl-0').removeClass('btn-primary btn-info').addClass('btn-primary');
streaming.send({message: { request: "configure", substream: 1 }});
});
$('#sl-2').removeClass('btn-primary btn-success').addClass('btn-primary')
.unbind('click').click(function() {
toastr.info("Switching simulcast substream, wait for it... (higher quality)", null, {timeOut: 2000});
$('#sl-2').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
if(!$('#sl-1').hasClass('btn-success'))
$('#sl-1').removeClass('btn-primary btn-info').addClass('btn-primary');
if(!$('#sl-0').hasClass('btn-success'))
$('#sl-0').removeClass('btn-primary btn-info').addClass('btn-primary');
streaming.send({message: { request: "configure", substream: 2 }});
});
$('#tl-0').removeClass('btn-primary btn-success').addClass('btn-primary')
.unbind('click').click(function() {
toastr.info("Capping simulcast temporal layer, wait for it... (lowest FPS)", null, {timeOut: 2000});
if(!$('#tl-2').hasClass('btn-success'))
$('#tl-2').removeClass('btn-primary btn-info').addClass('btn-primary');
if(!$('#tl-1').hasClass('btn-success'))
$('#tl-1').removeClass('btn-primary btn-info').addClass('btn-primary');
$('#tl-0').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
streaming.send({message: { request: "configure", temporal: 0 }});
});
$('#tl-1').removeClass('btn-primary btn-success').addClass('btn-primary')
.unbind('click').click(function() {
toastr.info("Capping simulcast temporal layer, wait for it... (medium FPS)", null, {timeOut: 2000});
if(!$('#tl-2').hasClass('btn-success'))
$('#tl-2').removeClass('btn-primary btn-info').addClass('btn-primary');
$('#tl-1').removeClass('btn-primary btn-info').addClass('btn-info');
if(!$('#tl-0').hasClass('btn-success'))
$('#tl-0').removeClass('btn-primary btn-info').addClass('btn-primary');
streaming.send({message: { request: "configure", temporal: 1 }});
});
$('#tl-2').removeClass('btn-primary btn-success').addClass('btn-primary')
.unbind('click').click(function() {
toastr.info("Capping simulcast temporal layer, wait for it... (highest FPS)", null, {timeOut: 2000});
$('#tl-2').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
if(!$('#tl-1').hasClass('btn-success'))
$('#tl-1').removeClass('btn-primary btn-info').addClass('btn-primary');
if(!$('#tl-0').hasClass('btn-success'))
$('#tl-0').removeClass('btn-primary btn-info').addClass('btn-primary');
streaming.send({message: { request: "configure", temporal: 2 }});
});
}
function updateSimulcastButtons(substream, temporal) {
// Check the substream
if(substream === 0) {
toastr.success("Switched simulcast substream! (lower quality)", null, {timeOut: 2000});
$('#sl-2').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#sl-1').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#sl-0').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
} else if(substream === 1) {
toastr.success("Switched simulcast substream! (normal quality)", null, {timeOut: 2000});
$('#sl-2').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#sl-1').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
$('#sl-0').removeClass('btn-primary btn-success').addClass('btn-primary');
} else if(substream === 2) {
toastr.success("Switched simulcast substream! (higher quality)", null, {timeOut: 2000});
$('#sl-2').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
$('#sl-1').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#sl-0').removeClass('btn-primary btn-success').addClass('btn-primary');
}
// Check the temporal layer
if(temporal === 0) {
toastr.success("Capped simulcast temporal layer! (lowest FPS)", null, {timeOut: 2000});
$('#tl-2').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#tl-1').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#tl-0').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
} else if(temporal === 1) {
toastr.success("Capped simulcast temporal layer! (medium FPS)", null, {timeOut: 2000});
$('#tl-2').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#tl-1').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
$('#tl-0').removeClass('btn-primary btn-success').addClass('btn-primary');
} else if(temporal === 2) {
toastr.success("Capped simulcast temporal layer! (highest FPS)", null, {timeOut: 2000});
$('#tl-2').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
$('#tl-1').removeClass('btn-primary btn-success').addClass('btn-primary');
$('#tl-0').removeClass('btn-primary btn-success').addClass('btn-primary');
}
}
|