One-KVM/web/share/js/kvm/stream.js
2025-02-01 12:19:02 +00:00

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/*****************************************************************************
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2024 Maxim Devaev <mdevaev@gmail.com> #
# Copyright (C) 2023-2025 SilentWind <mofeng654321@hotmail.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";
import {wm} from "../wm.js";
import {JanusStreamer} from "./stream_janus.js";
import {MediaStreamer} from "./stream_media.js";
import {MjpegStreamer} from "./stream_mjpeg.js";
export function Streamer() {
var self = this;
/************************************************************************/
var __janus_imported = null;
var __streamer = null;
var __state = null;
var __res = {"width": 640, "height": 480};
var __init__ = function() {
__streamer = new MjpegStreamer(__setActive, __setInactive, __setInfo);
$("stream-led").title = "Stream inactive";
tools.slider.setParams($("stream-quality-slider"), 5, 100, 5, 80, function(value) {
$("stream-quality-value").innerText = `${value}%`;
});
tools.slider.setOnUpDelayed($("stream-quality-slider"), 1000, (value) => __sendParam("quality", value));
tools.slider.setParams($("stream-h264-bitrate-slider"), 25, 20000, 25, 5000, function(value) {
$("stream-h264-bitrate-value").innerText = value;
});
tools.slider.setOnUpDelayed($("stream-h264-bitrate-slider"), 1000, (value) => __sendParam("h264_bitrate", value));
tools.slider.setParams($("stream-h264-gop-slider"), 0, 60, 1, 30, function(value) {
$("stream-h264-gop-value").innerText = value;
});
tools.slider.setOnUpDelayed($("stream-h264-gop-slider"), 1000, (value) => __sendParam("h264_gop", value));
tools.slider.setParams($("stream-desired-fps-slider"), 0, 120, 1, 0, function(value) {
$("stream-desired-fps-value").innerText = (value === 0 ? "Unlimited" : value);
});
tools.slider.setOnUpDelayed($("stream-desired-fps-slider"), 1000, (value) => __sendParam("desired_fps", value));
$("stream-resolution-selector").onchange = (() => __sendParam("resolution", $("stream-resolution-selector").value));
tools.radio.setOnClick("stream-mode-radio", __clickModeRadio, false);
// Not getInt() because of radio is a string container.
// Also don't reset Janus at class init.
tools.radio.clickValue("stream-orient-radio", tools.storage.get("stream.orient", 0));
tools.radio.setOnClick("stream-orient-radio", function() {
if (__streamer.getMode() === "janus") { // Right now it's working only for H.264
let orient = parseInt(tools.radio.getValue("stream-orient-radio"));
tools.storage.setInt("stream.orient", orient);
if (__streamer.getOrientation() != orient) {
__resetStream();
}
}
}, false);
tools.slider.setParams($("stream-audio-volume-slider"), 0, 100, 1, 0, function(value) {
$("stream-video").muted = !value;
$("stream-video").volume = value / 100;
$("stream-audio-volume-value").innerText = value + "%";
if (__streamer.getMode() === "janus") {
let allow_audio = !$("stream-video").muted;
if (__streamer.isAudioAllowed() !== allow_audio) {
__resetStream();
}
}
tools.el.setEnabled($("stream-mic-switch"), !!value);
});
tools.storage.bindSimpleSwitch($("stream-mic-switch"), "stream.mic", false, function(allow_mic) {
if (__streamer.getMode() === "janus") {
if (__streamer.isMicAllowed() !== allow_mic) {
__resetStream();
}
}
});
tools.el.setOnClick($("stream-screenshot-button"), __clickScreenshotButton);
tools.el.setOnClick($("stream-reset-button"), __clickResetButton);
tools.el.setOnClick($("stream-record-start-button"), __clickRecordStartButton);
tools.el.setOnClick($("stream-record-stop-button"), __clickRecordStopButton);
$("stream-window").show_hook = () => __applyState(__state);
$("stream-window").close_hook = () => __applyState(null);
//hidden stream-record-stop-button
document.getElementById('stream-record-stop-button').disabled = true;
// 修改这里:设置默认模式为 mjpeg
let defaultMode = "mjpeg";
let mode = tools.storage.get("stream.mode", defaultMode);
tools.radio.clickValue("stream-mode-radio", mode);
};
/************************************************************************/
self.ensureDeps = function(callback) {
JanusStreamer.ensure_janus(function(avail) {
__janus_imported = avail;
callback();
});
};
self.getGeometry = function() {
// Первоначально обновление геометрии считалось через ResizeObserver.
// Но оно не ловило некоторые события, например в последовательности:
// - Находять в HD переходим в фулскрин
// - Меняем разрешение на маленькое
// - Убираем фулскрин
// - Переходим в HD
// - Видим нарушение пропорций
// Так что теперь используются быстре рассчеты через offset*
// вместо getBoundingClientRect().
let res = __streamer.getResolution();
let ratio = Math.min(res.view_width / res.real_width, res.view_height / res.real_height);
return {
"x": Math.round((res.view_width - ratio * res.real_width) / 2),
"y": Math.round((res.view_height - ratio * res.real_height) / 2),
"width": Math.round(ratio * res.real_width),
"height": Math.round(ratio * res.real_height),
"real_width": res.real_width,
"real_height": res.real_height,
};
};
self.setState = function(state) {
if (state) {
if (!__state) {
__state = {};
}
if (state.features !== undefined) {
__state.features = state.features;
__state.limits = state.limits; // Following together with features
}
if (__state.features !== undefined && state.streamer !== undefined) {
__state.streamer = state.streamer;
__setControlsEnabled(!!state.streamer);
}
} else {
__state = null;
__setControlsEnabled(false);
}
let visible = wm.isWindowVisible($("stream-window"));
__applyState((visible && __state && __state.features) ? state : null);
};
var __applyState = function(state) {
if (__janus_imported === null) {
alert("__janus_imported is null, please report");
return;
}
if (!state) {
__streamer.stopStream();
return;
}
if (state.features) {
let f = state.features;
let l = state.limits;
let sup_h264 = $("stream-video").canPlayType("video/mp4; codecs=\"avc1.42E01F\"");
let sup_vd = MediaStreamer.is_videodecoder_available();
let sup_webrtc = JanusStreamer.is_webrtc_available();
let has_media = (f.h264 && sup_vd); // Don't check sup_h264 for sure
let has_janus = (__janus_imported && f.h264 && sup_webrtc); // Same
tools.info(
`Stream: Janus WebRTC state: features.h264=${f.h264},`
+ ` webrtc=${sup_webrtc}, h264=${sup_h264}, janus_imported=${__janus_imported}`
);
tools.hidden.setVisible($("stream-message-no-webrtc"), __janus_imported && f.h264 && !sup_webrtc);
tools.hidden.setVisible($("stream-message-no-vd"), f.h264 && !sup_vd);
tools.hidden.setVisible($("stream-message-no-h264"), __janus_imported && f.h264 && !sup_h264);
tools.slider.setRange($("stream-desired-fps-slider"), l.desired_fps.min, l.desired_fps.max);
if (f.resolution) {
let el = $("stream-resolution-selector");
el.options.length = 0;
for (let res of l.available_resolutions) {
tools.selector.addOption(el, res, res);
}
} else {
$("stream-resolution-selector").options.length = 0;
}
if (f.h264) {
tools.slider.setRange($("stream-h264-bitrate-slider"), l.h264_bitrate.min, l.h264_bitrate.max);
tools.slider.setRange($("stream-h264-gop-slider"), l.h264_gop.min, l.h264_gop.max);
}
// tools.feature.setEnabled($("stream-quality"), f.quality); // Only on s.encoder.quality
tools.feature.setEnabled($("stream-resolution"), f.resolution);
tools.feature.setEnabled($("stream-h264-bitrate"), f.h264);
tools.feature.setEnabled($("stream-h264-gop"), f.h264);
tools.feature.setEnabled($("stream-mode"), f.h264);
if (!f.h264) {
tools.feature.setEnabled($("stream-audio"), false);
tools.feature.setEnabled($("stream-mic"), false);
}
let mode = tools.storage.get("stream.mode", "mjpeg"); // 这里也改为默认 mjpeg
if (mode === "janus" && !has_janus) {
mode = "media";
}
if (mode === "media" && !has_media) {
mode = "mjpeg";
}
tools.radio.clickValue("stream-mode-radio", mode);
}
if (state.streamer) {
let s = state.streamer;
__res = s.source.resolution;
{
let res = `${__res.width}x${__res.height}`;
let el = $("stream-resolution-selector");
if (!tools.selector.hasValue(el, res)) {
tools.selector.addOption(el, res, res);
}
el.value = res;
}
tools.slider.setValue($("stream-quality-slider"), Math.max(s.encoder.quality, 1));
tools.slider.setValue($("stream-desired-fps-slider"), s.source.desired_fps);
if (s.h264 && s.h264.bitrate) {
tools.slider.setValue($("stream-h264-bitrate-slider"), s.h264.bitrate);
tools.slider.setValue($("stream-h264-gop-slider"), s.h264.gop); // Following together with gop
}
tools.feature.setEnabled($("stream-quality"), (s.encoder.quality > 0));
__streamer.ensureStream(s);
}
};
var __setActive = function() {
$("stream-led").className = "led-green";
$("stream-led").title = "Stream is active";
};
var __setInactive = function() {
$("stream-led").className = "led-gray";
$("stream-led").title = "Stream inactive";
};
var __setControlsEnabled = function(enabled) {
tools.el.setEnabled($("stream-quality-slider"), enabled);
tools.el.setEnabled($("stream-desired-fps-slider"), enabled);
tools.el.setEnabled($("stream-resolution-selector"), enabled);
tools.el.setEnabled($("stream-h264-bitrate-slider"), enabled);
tools.el.setEnabled($("stream-h264-gop-slider"), enabled);
};
var __setInfo = function(is_active, online, text) {
$("stream-box").classList.toggle("stream-box-offline", !online);
let el_grab = document.querySelector("#stream-window-header .window-grab");
let el_info = $("stream-info");
let title = `${__streamer.getName()} - `;
if (is_active) {
if (!online) {
title += "No signal / ";
}
title += `${__res.width}x${__res.height}`;
if (text.length > 0) {
title += " / " + text;
}
} else {
if (text.length > 0) {
title += text;
} else {
title += "Inactive";
}
}
el_grab.innerText = el_info.innerText = title;
};
var __resetStream = function(mode=null) {
if (mode === null) {
mode = __streamer.getMode();
}
__streamer.stopStream();
if (mode === "mjpeg") {
// For mjpeg mode, create an instance of MjpegStreamer
__streamer = new MjpegStreamer(__setActive, __setInactive, __setInfo);
tools.feature.setEnabled($("stream-orient"), false);
tools.feature.setEnabled($("stream-audio"), false); // Enabling in stream_janus.js
tools.feature.setEnabled($("stream-mic"), false); // Ditto
} else if (mode === "media") {
// For media mode, create an instance of MediaStreamer
__streamer = new MediaStreamer(__setActive, __setInactive, __setInfo);
tools.feature.setEnabled($("stream-orient"), false);
tools.feature.setEnabled($("stream-audio"), false); // Assuming this should be disabled for MediaStreamer as well
tools.feature.setEnabled($("stream-mic"), false); // Ditto
} else { // janus
// For janus mode, create an instance of JanusStreamer with specific settings
__streamer = new JanusStreamer(__setActive, __setInactive, __setInfo,
tools.storage.getInt("stream.orient", 0), !$("stream-video").muted, $("stream-mic-switch").checked);
// Firefox doesn't support RTP orientation:
// - https://bugzilla.mozilla.org/show_bug.cgi?id=1316448
tools.feature.setEnabled($("stream-orient"), !tools.browser.is_firefox);
}
if (wm.isWindowVisible($("stream-window"))) {
__streamer.ensureStream((__state && __state.streamer !== undefined) ? __state.streamer : null);
}
};
var __clickModeRadio = function() {
let mode = tools.radio.getValue("stream-mode-radio");
tools.storage.set("stream.mode", mode);
if (mode !== __streamer.getMode()) {
tools.hidden.setVisible($("stream-canvas"), (mode === "media"));
tools.hidden.setVisible($("stream-image"), (mode === "mjpeg"));
tools.hidden.setVisible($("stream-video"), (mode === "janus"));
__resetStream(mode);
}
};
var __clickScreenshotButton = function() {
let el = document.createElement("a");
el.href = "/api/streamer/snapshot";
el.target = "_blank";
document.body.appendChild(el);
el.click();
setTimeout(() => document.body.removeChild(el), 0);
};
var __clickResetButton = function() {
wm.confirm("Are you sure you want to reset stream?").then(function(ok) {
if (ok) {
__resetStream();
tools.httpPost("/api/streamer/reset", null, function(http) {
if (http.status !== 200) {
wm.error("Can't reset stream", http.responseText);
}
});
}
});
};
var stream_mjpeg_refresh_img;
var stream_now_fps
let mediaRecorder;
var __clickRecordStartButton = function() {
wm.confirm("Are you sure you want to record stream?").then(function (ok) {
if (ok) {
stream_now_fps = tools.slider.getValue($("stream-desired-fps-slider"));
let recordedBlobs = [];
//"mjpeg" or "janus" or "media"
let stream_type = document.querySelector('input[name="stream-mode-radio"]:checked').value;
if ( stream_type == "mjpeg"){
var stream_mjpeg_img = document.getElementById('stream-image');
var stream_mjpeg_canvas = document.getElementById('stream-mjpeg-canvas');
var ctx = stream_mjpeg_canvas.getContext('2d');
stream_mjpeg_canvas.width = stream_mjpeg_img.width;
stream_mjpeg_canvas.height = stream_mjpeg_img.height;
const stream = stream_mjpeg_canvas.captureStream(stream_now_fps);
mediaRecorder = new MediaRecorder(stream);
}else if(stream_type == "media"){
const stream_canvas = document.getElementById("stream-canvas")
stream_canvas.captureStream = stream_canvas.captureStream || stream_canvas.mozCaptureStream;
mediaRecorder = new MediaRecorder(stream_canvas.captureStream(stream_now_fps));
}else if(stream_type == "janus"){
const stream = document.getElementById("stream-video")
stream.captureStream = stream.captureStream || stream.mozCaptureStream;
mediaRecorder = new MediaRecorder(stream.captureStream());
}
mediaRecorder.ondataavailable = function(event) {
if (event.data && event.data.size > 0) {
recordedBlobs.push(event.data);
}
};
mediaRecorder.onstop = function() {
const blob = new Blob(recordedBlobs, {type: 'video/webm'});
var url = URL.createObjectURL(blob);
const a = document.createElement('a');
document.body.appendChild(a);
const now = new Date();
const year = now.getFullYear();
const month = ('0' + (now.getMonth() + 1)).slice(-2);
const day = ('0' + now.getDate()).slice(-2);
const hours = ('0' + now.getHours()).slice(-2);
const minutes = ('0' + now.getMinutes()).slice(-2);
const seconds = ('0' + now.getSeconds()).slice(-2);//Get now time
a.style = "display: none";
a.href = url;
a.download = stream_type +"_"+ year + month + day + hours + minutes + seconds + ".webm";
a.click();
window.URL.revokeObjectURL(url);
};
mediaRecorder.start();
document.getElementById('stream-record-start-button').disabled = true;
document.getElementById('stream-record-stop-button').disabled = false;
if (stream_type == "mjpeg"){
stream_mjpeg_refresh_img = setInterval(function() {
ctx.drawImage(stream_mjpeg_img, 0, 0, stream_mjpeg_img.width, stream_mjpeg_img.height);
}, 1000 / stream_now_fps);
}
}
});
};
var __clickRecordStopButton = function() {
mediaRecorder.stop();
clearInterval(stream_mjpeg_refresh_img);
document.getElementById('stream-record-start-button').disabled = false;
document.getElementById('stream-record-stop-button').disabled = true;
};
var __sendParam = function(name, value) {
tools.httpPost("/api/streamer/set_params", {[name]: value}, function(http) {
if (http.status !== 200) {
wm.error("Can't configure stream", http.responseText);
}
});
};
__init__();
}