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function Stream() {
// var self = this;
/********************************************************************************/
var __prev_state = false;
var __resolution = {width: 640, height: 480};
var __size_factor = 1;
var __client_id = "";
var __fps = 0;
var __quality_timer = null;
var __soft_fps_timer = null;
var __init__ = function() {
$("stream-led").title = "Stream inactive";
$("stream-quality-slider").min = 10;
$("stream-quality-slider").max = 100;
$("stream-quality-slider").step = 5;
$("stream-quality-slider").value = 80;
$("stream-quality-slider").oninput = __setQuality;
$("stream-quality-slider").onchange = __setQuality;
$("stream-soft-fps-slider").min = 1;
$("stream-soft-fps-slider").max = 30;
$("stream-soft-fps-slider").step = 1;
$("stream-soft-fps-slider").value = 30;
$("stream-soft-fps-slider").oninput = __setSoftFps;
$("stream-soft-fps-slider").onchange = __setSoftFps;
$("stream-size-slider").min = 20;
$("stream-size-slider").max = 200;
$("stream-size-slider").step = 5;
$("stream-size-slider").value = 100;
$("stream-size-slider").oninput = () => __resize();
$("stream-size-slider").onchange = () => __resize();
tools.setOnClick($("stream-screenshot-button"), __clickScreenshotButton);
tools.setOnClick($("stream-reset-button"), __clickResetButton);
__startPoller();
};
/********************************************************************************/
// XXX: In current implementation we don't need this event because Stream() has own state poller
var __startPoller = function() {
var http = tools.makeRequest("GET", "/streamer/ping", function() {
if (http.readyState === 4) {
var response = (http.status === 200 ? JSON.parse(http.responseText) : null);
if (http.status !== 200) {
tools.info("Refreshing stream ...");
$("stream-image").className = "stream-image-inactive";
$("stream-box").classList.add("stream-box-inactive");
$("stream-led").className = "led-gray";
$("stream-led").title = "Stream inactive";
$("stream-screenshot-button").disabled = true;
$("stream-quality-slider").disabled = true;
$("stream-soft-fps-slider").disabled = true;
$("stream-reset-button").disabled = true;
__updateStreamHeader(false);
__fps = 0;
__prev_state = false;
} else if (http.status === 200) {
if ($("stream-quality-slider").value !== response.source.quality && !__quality_timer) {
$("stream-quality-slider").value = response.source.quality;
$("stream-quality-value").innerHTML = response.source.quality + "%";
}
if ($("stream-soft-fps-slider").value !== response.source.soft_fps && !__soft_fps_timer) {
$("stream-soft-fps-slider").value = response.source.soft_fps;
$("stream-soft-fps-value").innerHTML = response.source.soft_fps;
}
if (__resolution.width !== response.source.resolution.width || __resolution.height !== response.source.resolution.height) {
__resolution = response.source.resolution;
if ($("stream-auto-resize-checkbox").checked) {
__adjustSizeFactor();
} else {
__applySizeFactor();
}
}
var client_id = tools.getCookie("stream_client_id");
if (client_id) {
__client_id = client_id;
}
if (response.stream.clients_stat.hasOwnProperty(__client_id)) {
__fps = response.stream.clients_stat[__client_id].fps;
} else {
__fps = 0;
}
__updateStreamHeader(true);
if (!__prev_state) {
var path = "/streamer/stream?t=" + new Date().getTime();
if (tools.browser.is_chrome || tools.browser.is_blink) {
// uStreamer fix for Blink https://bugs.chromium.org/p/chromium/issues/detail?id=527446
tools.info("Stream: using advance_headers=1");
path += "&advance_headers=1";
} else if (tools.browser.is_safari || tools.browser.is_ios) {
// uStreamer fix for WebKit
tools.info("Stream: using dual_final_frames=1");
path += "&dual_final_frames=1";
}
$("stream-image").src = path;
$("stream-image").className = "stream-image-active";
$("stream-box").classList.remove("stream-box-inactive");
$("stream-led").className = "led-green";
$("stream-led").title = "Stream is active";
$("stream-screenshot-button").disabled = false;
$("stream-quality-slider").disabled = false;
$("stream-soft-fps-slider").disabled = false;
$("stream-reset-button").disabled = false;
__prev_state = true;
tools.info("Stream acquired");
}
}
}
});
setTimeout(__startPoller, 1000);
};
var __updateStreamHeader = function(online) {
var el_grab = document.querySelector("#stream-window-header .window-grab");
var el_info = $("stream-info");
if (online) {
el_grab.innerHTML = el_info.innerHTML = "Stream – " + __resolution.width + "x" + __resolution.height + " / " + __fps + " fps";
} else {
el_grab.innerHTML = el_info.innerHTML = "Stream – offline";
}
};
var __clickScreenshotButton = function() {
var el_a = document.createElement("a");
el_a.href = "/streamer/snapshot";
el_a.target = "_blank";
document.body.appendChild(el_a);
el_a.click();
setTimeout(() => document.body.removeChild(el_a), 0);
};
var __clickResetButton = function() {
$("stream-reset-button").disabled = true;
var http = tools.makeRequest("POST", "/kvmd/streamer/reset", function() {
if (http.readyState === 4) {
if (http.status !== 200) {
ui.error("Can't reset stream:<br>", http.responseText);
}
}
});
};
var __setQuality = function() {
var quality = $("stream-quality-slider").value;
$("stream-quality-value").innerHTML = quality + "%";
if (__quality_timer) {
clearTimeout(__quality_timer);
}
__quality_timer = setTimeout(function() {
$("stream-quality-slider").disabled = true;
var http = tools.makeRequest("POST", "/kvmd/streamer/set_params?quality=" + quality, function() {
if (http.readyState === 4) {
if (http.status !== 200) {
ui.error("Can't configure stream:<br>", http.responseText);
}
__quality_timer = null;
}
});
}, 1000);
};
var __setSoftFps = function() {
var soft_fps = $("stream-soft-fps-slider").value;
$("stream-soft-fps-value").innerHTML = soft_fps;
if (__soft_fps_timer) {
clearTimeout(__soft_fps_timer);
}
__soft_fps_timer = setTimeout(function() {
$("stream-soft-fps-slider").disabled = true;
var http = tools.makeRequest("POST", "/kvmd/streamer/set_params?soft_fps=" + soft_fps, function() {
if (http.readyState === 4) {
if (http.status !== 200) {
ui.error("Can't configure stream:<br>", http.responseText);
}
__soft_fps_timer = null;
}
});
}, 1000);
};
var __resize = function(center=false) {
var size = $("stream-size-slider").value;
$("stream-size-value").innerHTML = size + "%";
__size_factor = size / 100;
__applySizeFactor(center);
};
var __adjustSizeFactor = function() {
var el_window = $("stream-window");
var el_slider = $("stream-size-slider");
var view = ui.getViewGeometry();
for (var size = 100; size >= el_slider.min; size -= el_slider.step) {
tools.info("Adjusting size:", size);
$("stream-size-slider").value = size;
__resize(true);
var rect = el_window.getBoundingClientRect();
if (
rect.bottom <= view.bottom
&& rect.top >= view.top
&& rect.left >= view.left
&& rect.right <= view.right
) {
break;
}
}
};
var __applySizeFactor = function(center=false) {
var el_stream_image = $("stream-image");
el_stream_image.style.width = __resolution.width * __size_factor + "px";
el_stream_image.style.height = __resolution.height * __size_factor + "px";
ui.showWindow($("stream-window"), false, center);
};
__init__();
}
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