web: split stream.js

This commit is contained in:
Maxim Devaev 2022-11-29 09:25:09 +03:00
parent 1d7ef25a0b
commit 6a339238ff
3 changed files with 534 additions and 458 deletions

View File

@ -26,437 +26,9 @@
import {tools, $} from "../tools.js"; import {tools, $} from "../tools.js";
import {wm} from "../wm.js"; import {wm} from "../wm.js";
import {JanusStreamer} from "./stream_janus.js";
import {MjpegStreamer} from "./stream_mjpeg.js";
var _Janus = null;
function _JanusStreamer(__setActive, __setInactive, __setInfo) {
var self = this;
var __stop = false;
var __ensuring = false;
var __janus = null;
var __handle = null;
var __retry_ensure_timeout = null;
var __retry_emsg_timeout = null;
var __info_interval = null;
var __state = null;
var __frames = 0;
self.getName = () => "H.264";
self.getMode = () => "janus";
self.getResolution = function() {
let el = $("stream-video");
return {
// Разрешение видео или элемента
"real_width": (el.videoWidth || el.offsetWidth),
"real_height": (el.videoHeight || el.offsetHeight),
"view_width": el.offsetWidth,
"view_height": el.offsetHeight,
};
};
self.ensureStream = function(state) {
__state = state;
__stop = false;
__ensureJanus(false);
};
self.stopStream = function() {
__stop = true;
__destroyJanus();
};
var __ensureJanus = function(internal) {
if (__janus === null && !__stop && (!__ensuring || internal)) {
__setInactive();
__setInfo(false, false, "");
__ensuring = true;
__logInfo("Starting Janus ...");
__janus = new _Janus({
"server": `${tools.is_https ? "wss" : "ws"}://${location.host}/janus/ws`,
"ipv6": true,
"destroyOnUnload": false,
"success": __attachJanus,
"error": function(error) {
__logError(error);
__setInfo(false, false, error);
__finishJanus();
},
});
}
};
var __finishJanus = function() {
if (__stop) {
if (__retry_ensure_timeout !== null) {
clearTimeout(__retry_ensure_timeout);
__retry_ensure_timeout = null;
}
__ensuring = false;
} else {
if (__retry_ensure_timeout === null) {
__retry_ensure_timeout = setTimeout(function() {
__retry_ensure_timeout = null;
__ensureJanus(true);
}, 5000);
}
}
__stopRetryEmsgInterval();
__stopInfoInterval();
__handle = null;
__janus = null;
__setInactive();
if (__stop) {
__setInfo(false, false, "");
}
};
var __destroyJanus = function() {
if (__handle && __handle.webrtcStuff && __handle.webrtcStuff.remoteStream) {
for (let track of __handle.webrtcStuff.remoteStream.getTracks()) {
track.stop();
__handle.webrtcStuff.remoteStream.removeTrack(track);
}
__handle.webrtcStuff.remoteStream = null;
}
$("stream-video").srcObject = null;
__setAudioEnabled(false);
if (__janus !== null) {
__janus.destroy();
}
__finishJanus();
};
var __attachJanus = function() {
if (__janus === null) {
return;
}
__janus.attach({
"plugin": "janus.plugin.ustreamer",
"opaqueId": "oid-" + _Janus.randomString(12),
"success": function(handle) {
__handle = handle;
__logInfo("uStreamer attached:", handle.getPlugin(), handle.getId());
__sendWatch();
},
"error": function(error) {
__logError("Can't attach uStreamer: ", error);
__setInfo(false, false, error);
__destroyJanus();
},
"iceState": function(state) {
__logInfo("ICE state changed to", state);
// Если раскомментировать, то он начнет дрючить соединение,
// так как каллбек вызывает сильно после завершения работы
/*if (state === "disconnected") {
__destroyJanus();
}*/
},
"webrtcState": function(up) {
__logInfo("Janus says our WebRTC PeerConnection is", (up ? "up" : "down"), "now");
if (up) {
__sendKeyRequired();
}
},
"onmessage": function(msg, jsep) {
__stopRetryEmsgInterval();
if (msg.result) {
__logInfo("Got uStreamer result message:", msg.result.status); // starting, started, stopped
if (msg.result.status === "started") {
__setActive();
__setInfo(false, false, "");
} else if (msg.result.status === "stopped") {
__setInactive();
__setInfo(false, false, "");
} else if (msg.result.status === "features") {
__setAudioEnabled(msg.result.features.audio);
}
} else if (msg.error_code || msg.error) {
__logError("Got uStreamer error message:", msg.error_code, "-", msg.error);
__setInfo(false, false, msg.error);
if (__retry_emsg_timeout === null) {
__retry_emsg_timeout = setTimeout(function() {
if (!__stop) {
__sendStop();
__sendWatch();
}
__retry_emsg_timeout = null;
}, 2000);
}
return;
} else {
__logInfo("Got uStreamer other message:", msg);
}
if (jsep) {
__logInfo("Handling SDP:", jsep);
__handle.createAnswer({
"jsep": jsep,
"media": {"audioSend": false, "videoSend": false, "data": false},
"success": function(jsep) {
__logInfo("Got SDP:", jsep);
__sendStart(jsep);
},
"error": function(error) {
__logInfo("Error on SDP handling:", error);
__setInfo(false, false, error);
//__destroyJanus();
},
});
}
},
"onremotestream": function(stream) {
__logInfo("Got a remote stream:", stream);
_Janus.attachMediaStream($("stream-video"), stream);
__sendKeyRequired();
__startInfoInterval();
// FIXME: Задержка уменьшается, но начинаются заикания на кейфреймах.
// - https://github.com/Glimesh/janus-ftl-plugin/issues/101
/*if (__handle && __handle.webrtcStuff && __handle.webrtcStuff.pc) {
for (let receiver of __handle.webrtcStuff.pc.getReceivers()) {
if (receiver.track && receiver.track.kind === "video" && receiver.playoutDelayHint !== undefined) {
receiver.playoutDelayHint = 0;
}
}
}*/
},
"oncleanup": function() {
__logInfo("Got a cleanup notification");
__stopInfoInterval();
},
});
};
var __setAudioEnabled = function(enabled) {
tools.feature.setEnabled($("stream-audio"), enabled);
};
var __startInfoInterval = function() {
__stopInfoInterval();
__setActive();
__updateInfo();
__info_interval = setInterval(__updateInfo, 1000);
};
var __stopInfoInterval = function() {
if (__info_interval !== null) {
clearInterval(__info_interval);
}
__info_interval = null;
};
var __stopRetryEmsgInterval = function() {
if (__retry_emsg_timeout !== null) {
clearTimeout(__retry_emsg_timeout);
__retry_emsg_timeout = null;
}
};
var __updateInfo = function() {
if (__handle !== null) {
let online = !!(__state && __state.source && __state.source.online);
let info = "";
if (__handle !== null) {
// https://wiki.whatwg.org/wiki/Video_Metrics
let frames = null;
let el = $("stream-video");
if (el.webkitDecodedFrameCount !== undefined) {
frames = el.webkitDecodedFrameCount;
} else if (el.mozPaintedFrames !== undefined) {
frames = el.mozPaintedFrames;
}
if (frames !== null) {
info = `${Math.max(0, frames - __frames)} fps dynamic`;
__frames = frames;
} else {
info = `${__handle.getBitrate()}`.replace("kbits/sec", "kbps");
}
}
__setInfo(true, online, info);
}
};
var __sendWatch = function() {
if (__handle) {
__logInfo("Sending WATCH + FEATURES ...");
__handle.send({"message": {"request": "features"}});
__handle.send({"message": {"request": "watch", "params": {"audio": true}}});
}
};
var __sendStart = function(jsep) {
if (__handle) {
__logInfo("Sending START ...");
__handle.send({"message": {"request": "start"}, "jsep": jsep});
}
};
var __sendKeyRequired = function() {
/*if (__handle) {
// На этом шаге мы говорим что стрим пошел и надо запросить кейфрейм
__logInfo("Sending KEY_REQUIRED ...");
__handle.send({message: {request: "key_required"}});
}*/
};
var __sendStop = function() {
__stopInfoInterval();
if (__handle) {
__logInfo("Sending STOP ...");
__handle.send({"message": {"request": "stop"}});
__handle.hangup();
}
};
var __logInfo = (...args) => tools.info("Stream [Janus]:", ...args);
var __logError = (...args) => tools.error("Stream [Janus]:", ...args);
}
function _MjpegStreamer(__setActive, __setInactive, __setInfo) {
var self = this;
/************************************************************************/
var __key = tools.makeId();
var __id = "";
var __fps = -1;
var __state = null;
var __timer = null;
var __timer_retries = 0;
/************************************************************************/
self.getName = () => "MJPEG";
self.getMode = () => "mjpeg";
self.getResolution = function() {
let el = $("stream-image");
return {
"real_width": el.naturalWidth,
"real_height": el.naturalHeight,
"view_width": el.offsetWidth,
"view_height": el.offsetHeight,
};
};
self.ensureStream = function(state) {
if (state) {
__state = state;
__findId();
if (__id.length > 0 && __id in __state.stream.clients_stat) {
__setStreamActive();
__stopChecking();
} else {
__ensureChecking();
}
} else {
__stopChecking();
__setStreamInactive();
}
};
self.stopStream = function() {
self.ensureStream(null);
let blank = "/share/png/blank-stream.png";
if (!String.prototype.endsWith.call($("stream-image").src, blank)) {
$("stream-image").src = blank;
}
};
var __setStreamActive = function() {
let old_fps = __fps;
__fps = __state.stream.clients_stat[__id].fps;
if (old_fps < 0) {
__logInfo("Active");
__setActive();
}
__setInfo(true, __state.source.online, `${__fps} fps dynamic`);
};
var __setStreamInactive = function() {
let old_fps = __fps;
__key = tools.makeId();
__id = "";
__fps = -1;
__state = null;
if (old_fps >= 0) {
__logInfo("Inactive");
__setInactive();
__setInfo(false, false, "");
}
};
var __ensureChecking = function() {
if (!__timer) {
__timer_retries = 10;
__timer = setInterval(__checkStream, 100);
}
};
var __stopChecking = function() {
if (__timer) {
clearInterval(__timer);
}
__timer = null;
__timer_retries = 0;
};
var __findId = function() {
let stream_client = tools.cookies.get("stream_client");
if (__id.length === 0 && stream_client && stream_client.startsWith(__key + "/")) {
__logInfo("Found acceptable stream_client cookie:", stream_client);
__id = stream_client.slice(stream_client.indexOf("/") + 1);
}
};
var __checkStream = function() {
__findId();
if (__id.legnth > 0 && __id in __state.stream.clients_stat) {
__setStreamActive();
__stopChecking();
} else if (__id.length > 0 && __timer_retries >= 0) {
__timer_retries -= 1;
} else {
__setStreamInactive();
__stopChecking();
let path = `/streamer/stream?key=${__key}`;
if (tools.browser.is_safari || tools.browser.is_ios) {
// uStreamer fix for WebKit
__logInfo("Using dual_final_frames=1 to fix WebKit bugs");
path += "&dual_final_frames=1";
} else if (tools.browser.is_chrome || tools.browser.is_blink) {
// uStreamer fix for Blink https://bugs.chromium.org/p/chromium/issues/detail?id=527446
__logInfo("Using advance_headers=1 to fix Blink bugs");
path += "&advance_headers=1";
}
__logInfo("Refreshing ...");
$("stream-image").src = path;
}
};
var __logInfo = (...args) => tools.info("Stream [MJPEG]:", ...args);
}
export function Streamer() { export function Streamer() {
var self = this; var self = this;
@ -470,7 +42,7 @@ export function Streamer() {
var __resolution = {"width": 640, "height": 480}; var __resolution = {"width": 640, "height": 480};
var __init__ = function() { var __init__ = function() {
__streamer = new _MjpegStreamer(__setActive, __setInactive, __setInfo); __streamer = new MjpegStreamer(__setActive, __setInactive, __setInfo);
$("stream-led").title = "Stream inactive"; $("stream-led").title = "Stream inactive";
@ -536,40 +108,24 @@ export function Streamer() {
}; };
self.setJanusEnabled = function(enabled) { self.setJanusEnabled = function(enabled) {
let has_webrtc = !!window.RTCPeerConnection; let has_webrtc = JanusStreamer.is_webrtc_available();
let has_h264 = JanusStreamer.is_h264_available();
let has_h264 = true;
if ($("stream-video").canPlayType) {
has_h264 = $("stream-video").canPlayType("video/mp4; codecs=\"avc1.42E01F\"");
}
let set_enabled = function() { let set_enabled = function() {
tools.hidden.setVisible($("stream-message-no-webrtc"), !has_webrtc); tools.hidden.setVisible($("stream-message-no-webrtc"), !has_webrtc);
tools.hidden.setVisible($("stream-message-no-h264"), !has_h264); tools.hidden.setVisible($("stream-message-no-h264"), !has_h264);
__janus_enabled = (enabled && has_webrtc && _Janus !== null); // Don't check has_h264 for sure __janus_enabled = (enabled && has_webrtc && JanusStreamer.is_imported()); // Don't check has_h264 for sure
tools.feature.setEnabled($("stream-mode"), __janus_enabled); tools.feature.setEnabled($("stream-mode"), __janus_enabled);
tools.info(`Stream: Janus WebRTC state: enabled=${enabled}, webrtc=${has_webrtc}, h264=${has_h264}, imported=${!!_Janus}`); tools.info(
`Stream: Janus WebRTC state: enabled=${enabled},`
+ ` webrtc=${has_webrtc}, h264=${has_h264}, imported=${JanusStreamer.is_imported()}`
);
tools.radio.clickValue("stream-mode-radio", tools.storage.get("stream.mode", "janus")); tools.radio.clickValue("stream-mode-radio", tools.storage.get("stream.mode", "janus"));
self.setState(__state); self.setState(__state);
}; };
if (enabled && has_webrtc) { if (enabled && has_webrtc) {
if (_Janus === null) { JanusStreamer.ensure_janus(set_enabled);
import("./janus.js").then((module) => {
module.Janus.init({
"debug": "all",
"callback": function() {
_Janus = module.Janus;
set_enabled();
},
});
}).catch((err) => {
tools.error("Stream: Can't import Janus module:", err);
set_enabled();
});
} else {
set_enabled();
}
} else { } else {
set_enabled(); set_enabled();
} }
@ -683,7 +239,7 @@ export function Streamer() {
}; };
var __clickModeRadio = function() { var __clickModeRadio = function() {
if (_Janus !== null) { if (JanusStreamer.is_imported()) {
let mode = tools.radio.getValue("stream-mode-radio"); let mode = tools.radio.getValue("stream-mode-radio");
tools.storage.set("stream.mode", mode); tools.storage.set("stream.mode", mode);
if (mode !== __streamer.getMode()) { if (mode !== __streamer.getMode()) {
@ -691,10 +247,10 @@ export function Streamer() {
tools.hidden.setVisible($("stream-video"), (mode === "janus")); tools.hidden.setVisible($("stream-video"), (mode === "janus"));
if (mode === "janus") { if (mode === "janus") {
__streamer.stopStream(); __streamer.stopStream();
__streamer = new _JanusStreamer(__setActive, __setInactive, __setInfo); __streamer = new JanusStreamer(__setActive, __setInactive, __setInfo);
} else { // mjpeg } else { // mjpeg
__streamer.stopStream(); __streamer.stopStream();
__streamer = new _MjpegStreamer(__setActive, __setInactive, __setInfo); __streamer = new MjpegStreamer(__setActive, __setInactive, __setInfo);
} }
if (wm.isWindowVisible($("stream-window"))) { if (wm.isWindowVisible($("stream-window"))) {
__streamer.ensureStream(__state); __streamer.ensureStream(__state);

View File

@ -0,0 +1,362 @@
/*****************************************************************************
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program 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 General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
*****************************************************************************/
"use strict";
import {tools, $} from "../tools.js";
var _Janus = null;
export function JanusStreamer(__setActive, __setInactive, __setInfo) {
var self = this;
var __stop = false;
var __ensuring = false;
var __janus = null;
var __handle = null;
var __retry_ensure_timeout = null;
var __retry_emsg_timeout = null;
var __info_interval = null;
var __state = null;
var __frames = 0;
self.getName = () => "H.264";
self.getMode = () => "janus";
self.getResolution = function() {
let el = $("stream-video");
return {
// Разрешение видео или элемента
"real_width": (el.videoWidth || el.offsetWidth),
"real_height": (el.videoHeight || el.offsetHeight),
"view_width": el.offsetWidth,
"view_height": el.offsetHeight,
};
};
self.ensureStream = function(state) {
__state = state;
__stop = false;
__ensureJanus(false);
};
self.stopStream = function() {
__stop = true;
__destroyJanus();
};
var __ensureJanus = function(internal) {
if (__janus === null && !__stop && (!__ensuring || internal)) {
__setInactive();
__setInfo(false, false, "");
__ensuring = true;
__logInfo("Starting Janus ...");
__janus = new _Janus({
"server": `${tools.is_https ? "wss" : "ws"}://${location.host}/janus/ws`,
"ipv6": true,
"destroyOnUnload": false,
"success": __attachJanus,
"error": function(error) {
__logError(error);
__setInfo(false, false, error);
__finishJanus();
},
});
}
};
var __finishJanus = function() {
if (__stop) {
if (__retry_ensure_timeout !== null) {
clearTimeout(__retry_ensure_timeout);
__retry_ensure_timeout = null;
}
__ensuring = false;
} else {
if (__retry_ensure_timeout === null) {
__retry_ensure_timeout = setTimeout(function() {
__retry_ensure_timeout = null;
__ensureJanus(true);
}, 5000);
}
}
__stopRetryEmsgInterval();
__stopInfoInterval();
__handle = null;
__janus = null;
__setInactive();
if (__stop) {
__setInfo(false, false, "");
}
};
var __destroyJanus = function() {
if (__handle && __handle.webrtcStuff && __handle.webrtcStuff.remoteStream) {
for (let track of __handle.webrtcStuff.remoteStream.getTracks()) {
track.stop();
__handle.webrtcStuff.remoteStream.removeTrack(track);
}
__handle.webrtcStuff.remoteStream = null;
}
$("stream-video").srcObject = null;
__setAudioEnabled(false);
if (__janus !== null) {
__janus.destroy();
}
__finishJanus();
};
var __attachJanus = function() {
if (__janus === null) {
return;
}
__janus.attach({
"plugin": "janus.plugin.ustreamer",
"opaqueId": "oid-" + _Janus.randomString(12),
"success": function(handle) {
__handle = handle;
__logInfo("uStreamer attached:", handle.getPlugin(), handle.getId());
__sendWatch();
},
"error": function(error) {
__logError("Can't attach uStreamer: ", error);
__setInfo(false, false, error);
__destroyJanus();
},
"iceState": function(state) {
__logInfo("ICE state changed to", state);
// Если раскомментировать, то он начнет дрючить соединение,
// так как каллбек вызывает сильно после завершения работы
/*if (state === "disconnected") {
__destroyJanus();
}*/
},
"webrtcState": function(up) {
__logInfo("Janus says our WebRTC PeerConnection is", (up ? "up" : "down"), "now");
if (up) {
__sendKeyRequired();
}
},
"onmessage": function(msg, jsep) {
__stopRetryEmsgInterval();
if (msg.result) {
__logInfo("Got uStreamer result message:", msg.result.status); // starting, started, stopped
if (msg.result.status === "started") {
__setActive();
__setInfo(false, false, "");
} else if (msg.result.status === "stopped") {
__setInactive();
__setInfo(false, false, "");
} else if (msg.result.status === "features") {
__setAudioEnabled(msg.result.features.audio);
}
} else if (msg.error_code || msg.error) {
__logError("Got uStreamer error message:", msg.error_code, "-", msg.error);
__setInfo(false, false, msg.error);
if (__retry_emsg_timeout === null) {
__retry_emsg_timeout = setTimeout(function() {
if (!__stop) {
__sendStop();
__sendWatch();
}
__retry_emsg_timeout = null;
}, 2000);
}
return;
} else {
__logInfo("Got uStreamer other message:", msg);
}
if (jsep) {
__logInfo("Handling SDP:", jsep);
__handle.createAnswer({
"jsep": jsep,
"media": {"audioSend": false, "videoSend": false, "data": false},
"success": function(jsep) {
__logInfo("Got SDP:", jsep);
__sendStart(jsep);
},
"error": function(error) {
__logInfo("Error on SDP handling:", error);
__setInfo(false, false, error);
//__destroyJanus();
},
});
}
},
"onremotestream": function(stream) {
__logInfo("Got a remote stream:", stream);
_Janus.attachMediaStream($("stream-video"), stream);
__sendKeyRequired();
__startInfoInterval();
// FIXME: Задержка уменьшается, но начинаются заикания на кейфреймах.
// - https://github.com/Glimesh/janus-ftl-plugin/issues/101
/*if (__handle && __handle.webrtcStuff && __handle.webrtcStuff.pc) {
for (let receiver of __handle.webrtcStuff.pc.getReceivers()) {
if (receiver.track && receiver.track.kind === "video" && receiver.playoutDelayHint !== undefined) {
receiver.playoutDelayHint = 0;
}
}
}*/
},
"oncleanup": function() {
__logInfo("Got a cleanup notification");
__stopInfoInterval();
},
});
};
var __setAudioEnabled = function(enabled) {
tools.feature.setEnabled($("stream-audio"), enabled);
};
var __startInfoInterval = function() {
__stopInfoInterval();
__setActive();
__updateInfo();
__info_interval = setInterval(__updateInfo, 1000);
};
var __stopInfoInterval = function() {
if (__info_interval !== null) {
clearInterval(__info_interval);
}
__info_interval = null;
};
var __stopRetryEmsgInterval = function() {
if (__retry_emsg_timeout !== null) {
clearTimeout(__retry_emsg_timeout);
__retry_emsg_timeout = null;
}
};
var __updateInfo = function() {
if (__handle !== null) {
let online = !!(__state && __state.source && __state.source.online);
let info = "";
if (__handle !== null) {
// https://wiki.whatwg.org/wiki/Video_Metrics
let frames = null;
let el = $("stream-video");
if (el.webkitDecodedFrameCount !== undefined) {
frames = el.webkitDecodedFrameCount;
} else if (el.mozPaintedFrames !== undefined) {
frames = el.mozPaintedFrames;
}
if (frames !== null) {
info = `${Math.max(0, frames - __frames)} fps dynamic`;
__frames = frames;
} else {
info = `${__handle.getBitrate()}`.replace("kbits/sec", "kbps");
}
}
__setInfo(true, online, info);
}
};
var __sendWatch = function() {
if (__handle) {
__logInfo("Sending WATCH + FEATURES ...");
__handle.send({"message": {"request": "features"}});
__handle.send({"message": {"request": "watch", "params": {"audio": true}}});
}
};
var __sendStart = function(jsep) {
if (__handle) {
__logInfo("Sending START ...");
__handle.send({"message": {"request": "start"}, "jsep": jsep});
}
};
var __sendKeyRequired = function() {
/*if (__handle) {
// На этом шаге мы говорим что стрим пошел и надо запросить кейфрейм
__logInfo("Sending KEY_REQUIRED ...");
__handle.send({message: {request: "key_required"}});
}*/
};
var __sendStop = function() {
__stopInfoInterval();
if (__handle) {
__logInfo("Sending STOP ...");
__handle.send({"message": {"request": "stop"}});
__handle.hangup();
}
};
var __logInfo = (...args) => tools.info("Stream [Janus]:", ...args);
var __logError = (...args) => tools.error("Stream [Janus]:", ...args);
}
JanusStreamer.ensure_janus = function(callback) {
if (_Janus === null) {
import("./janus.js").then((module) => {
module.Janus.init({
"debug": "all",
"callback": function() {
_Janus = module.Janus;
callback();
},
});
}).catch((err) => {
tools.error("Stream: Can't import Janus module:", err);
callback();
});
} else {
callback();
}
};
JanusStreamer.is_imported = function() {
return (_Janus !== null);
};
JanusStreamer.is_webrtc_available = function() {
return !!window.RTCPeerConnection;
};
JanusStreamer.is_h264_available = function() {
let ok = true;
if ($("stream-video").canPlayType) {
ok = $("stream-video").canPlayType("video/mp4; codecs=\"avc1.42E01F\"");
}
return ok;
};

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@ -0,0 +1,158 @@
/*****************************************************************************
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program 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 General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
*****************************************************************************/
"use strict";
import {tools, $} from "../tools.js";
export function MjpegStreamer(__setActive, __setInactive, __setInfo) {
var self = this;
/************************************************************************/
var __key = tools.makeId();
var __id = "";
var __fps = -1;
var __state = null;
var __timer = null;
var __timer_retries = 0;
/************************************************************************/
self.getName = () => "MJPEG";
self.getMode = () => "mjpeg";
self.getResolution = function() {
let el = $("stream-image");
return {
"real_width": el.naturalWidth,
"real_height": el.naturalHeight,
"view_width": el.offsetWidth,
"view_height": el.offsetHeight,
};
};
self.ensureStream = function(state) {
if (state) {
__state = state;
__findId();
if (__id.length > 0 && __id in __state.stream.clients_stat) {
__setStreamActive();
__stopChecking();
} else {
__ensureChecking();
}
} else {
__stopChecking();
__setStreamInactive();
}
};
self.stopStream = function() {
self.ensureStream(null);
let blank = "/share/png/blank-stream.png";
if (!String.prototype.endsWith.call($("stream-image").src, blank)) {
$("stream-image").src = blank;
}
};
var __setStreamActive = function() {
let old_fps = __fps;
__fps = __state.stream.clients_stat[__id].fps;
if (old_fps < 0) {
__logInfo("Active");
__setActive();
}
__setInfo(true, __state.source.online, `${__fps} fps dynamic`);
};
var __setStreamInactive = function() {
let old_fps = __fps;
__key = tools.makeId();
__id = "";
__fps = -1;
__state = null;
if (old_fps >= 0) {
__logInfo("Inactive");
__setInactive();
__setInfo(false, false, "");
}
};
var __ensureChecking = function() {
if (!__timer) {
__timer_retries = 10;
__timer = setInterval(__checkStream, 100);
}
};
var __stopChecking = function() {
if (__timer) {
clearInterval(__timer);
}
__timer = null;
__timer_retries = 0;
};
var __findId = function() {
let stream_client = tools.cookies.get("stream_client");
if (__id.length === 0 && stream_client && stream_client.startsWith(__key + "/")) {
__logInfo("Found acceptable stream_client cookie:", stream_client);
__id = stream_client.slice(stream_client.indexOf("/") + 1);
}
};
var __checkStream = function() {
__findId();
if (__id.legnth > 0 && __id in __state.stream.clients_stat) {
__setStreamActive();
__stopChecking();
} else if (__id.length > 0 && __timer_retries >= 0) {
__timer_retries -= 1;
} else {
__setStreamInactive();
__stopChecking();
let path = `/streamer/stream?key=${__key}`;
if (tools.browser.is_safari || tools.browser.is_ios) {
// uStreamer fix for WebKit
__logInfo("Using dual_final_frames=1 to fix WebKit bugs");
path += "&dual_final_frames=1";
} else if (tools.browser.is_chrome || tools.browser.is_blink) {
// uStreamer fix for Blink https://bugs.chromium.org/p/chromium/issues/detail?id=527446
__logInfo("Using advance_headers=1 to fix Blink bugs");
path += "&advance_headers=1";
}
__logInfo("Refreshing ...");
$("stream-image").src = path;
}
};
var __logInfo = (...args) => tools.info("Stream [MJPEG]:", ...args);
}