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Add stream info #384

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Add stream info #384

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f213540
add manifest file parsing functions to exnvr.utils
Mebareksaf Feb 21, 2024
8a75ab4
add stream info to dashboard liveview
Mebareksaf Feb 21, 2024
850b3b6
add a periodic event check to update stream info
Mebareksaf Feb 21, 2024
2ac1c9f
change adding stream info from backend to frontend using hls.js
Mebareksaf Feb 23, 2024
22e36ce
fix CSS
Mebareksaf Feb 23, 2024
128c711
remove unused regex
Mebareksaf Feb 23, 2024
c3eadc8
change stream information position and font
Mebareksaf Feb 23, 2024
b0198a7
convert data and get actual bandwith estimate
Mebareksaf Feb 23, 2024
6f35f55
remove console.log
Mebareksaf Feb 23, 2024
0a9ac43
change the stream info icon to information icon
Mebareksaf Feb 24, 2024
290ebbc
move converting bitrates to a separate function
Mebareksaf Feb 24, 2024
7a8f8d2
remove unused alias
Mebareksaf Feb 27, 2024
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27 changes: 27 additions & 0 deletions apps/ex_nvr_web/assets/js/app.js
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,8 @@ function initDarkMode() {

startStreaming = (src, poster_url) => {
var video = document.getElementById("live-video")
var infoBox = document.getElementById("stream-info");

if (video != null && Hls.isSupported()) {
if (window.hls) {
window.hls.destroy()
Expand All @@ -130,6 +132,31 @@ startStreaming = (src, poster_url) => {
})
window.hls.loadSource(src)
window.hls.attachMedia(video)

window.hls.on(Hls.Events.LEVEL_LOADED, (event, data) => {
const { level, stats } = data;
const levelInfo = window.hls.levels[level];

infoBox.innerHTML = `
<p class="font-bold text-xs">Bandwith Estimate: ${convertBitrate(window.hls.bandwidthEstimate)}</p>
<p class="font-bold text-xs">Bitrate: ${convertBitrate(levelInfo.bitrate)}</p>
<p class="font-bold text-xs">Avg.Bitrate: ${convertBitrate(levelInfo.averageBitrate)}</p>
<p class="font-bold text-xs">Resolution: ${levelInfo.width}x${levelInfo.height}</p>
<p class="font-bold text-xs">Codecs: ${levelInfo.attrs.CODECS}</p>
`;
infoBox.innerHTML = infoHtml;
});
}
}

function convertBitrate(bitRate) {
const mbpsFactor = 1000 * 1000

let bitRateMbps = (bitRate / mbpsFactor)
if (bitRateMbps < 1) {
return `${(bitRateMbps * 1000).toFixed(2)} Kbps`
} else {
return `${bitRateMbps.toFixed(2)} Mbps`
}
}

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12 changes: 12 additions & 0 deletions apps/ex_nvr_web/lib/ex_nvr_web/live/dashboard_live.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -94,6 +94,18 @@ defmodule ExNVRWeb.DashboardLive do
>
<.icon name="hero-camera" />
</div>
<button
id="toggle-info"
class="absolute top-10 right-1 rounded-sm bg-zinc-900 py-1 px-2 text-sm text-white dark:bg-gray-700 dark:bg-opacity-80 hover:cursor-pointer"
phx-click={JS.toggle(to: "#stream-info")}
>
<.icon name="hero-information-circle" />
</button>
<div
id="stream-info"
class="absolute top-1 left-1 z-50 text-white bg-black bg-opacity-50 px-2 py-1 hidden"
>
</div>
</div>
<div
:if={not @live_view_enabled?}
Expand Down