feat: consolidate on the shadcn frontend and harden playback
Frontend
- Replace the Ant Design app with the shadcn/ui app as the single frontend,
keeping the portfolio side-by-side revertible in this commit.
- Drop the abandoned mdui experiment and the AntD tree so there is one app,
one router and one design system to maintain.
Live playback
- Stop racing the encoder. lowLatencyMode + liveSyncDurationCount:1 targeted a
single 4s segment, so playback ran at up to 1.10x and the forward buffer
bottomed out at 0.1s, re-buffering every segment. Measured over 40s:
buffer min 0.1s -> 8.9s, rate 1.00 constant, 0 stalls.
- Remove the 落后 labels and the page-level edge-snapping timer that fought
hls.js over two different definitions of "latency".
- Live can no longer be paused: the control is not rendered while it plays, so
the icon can never misreport state.
- Fix autoplay: muted autoplay started silently and never unmuted, and the
gesture that restored sound also toggled playback off. One owner now.
Source ("原画") rendition
- Publish the publisher's stream remuxed losslessly via -c:v copy alongside the
transcoded ones, so a source option exists even when every ladder entry
downsizes.
- Give renditions an ASCII path slug: the HLS path is part of the URL and
MediaMTX rejects non-alphanumeric paths, so 原画 could never be served.
Backend
- Supervise MediaMTX from the backend: start it at boot and restart it on exit,
never killing an origin it did not start.
- Clear stale HLS output before restarting an encoder; an ENDLIST-less playlist
left by a dead encoder hangs hls.js forever.
- Mark JSON timestamps as UTC. utcnow().isoformat() emitted a naive string that
JS read as local time, so every viewer heartbeat looked 8 hours old in UTC+8
and the live board's active-viewer count was permanently zero.
- Rebind a viewer session when it arrives on another stream instead of failing,
and survive the StrictMode double-heartbeat race on first insert.
- Replace the Linux-only /proc and os.getloadavg metrics with psutil.
- Complete MediaMTX's cookieCheck redirect inside /hls proxying, and hold the
httpx client open for the streamed body.
Housekeeping
- Ignore RainOSS (it stores accessKeySecret), runtime output, TLS keys and
.venv; remove generated screenshots, load test scripts and stray files.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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@@ -1,18 +1,13 @@
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param(
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[switch]$NoFrontend,
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[switch]$NoMediaMTX,
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[switch]$InstallDeps,
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[string]$HostAddress = "0.0.0.0",
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[int]$BackendPort = 8080,
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[int]$FrontendPort = 5173
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[int]$BackendPort = 8080
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)
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$ErrorActionPreference = "Stop"
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$Base = Split-Path -Parent $MyInvocation.MyCommand.Path
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$BackendDir = Join-Path $Base "backend"
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$FrontendDir = Join-Path $Base "frontend"
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$MediaDir = Join-Path $Base "mediamtx"
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$RuntimeDir = Join-Path $Base "runtime"
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$HlsDir = Join-Path $RuntimeDir "hls"
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$ReplayDir = Join-Path $RuntimeDir "replay"
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@@ -37,75 +32,20 @@ function Resolve-Python {
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throw "Python not found. Install Python 3.11+ or create backend\.venv."
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}
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function Assert-Command($Name, $Hint) {
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if (-not (Get-Command $Name -ErrorAction SilentlyContinue)) {
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throw "$Name not found. $Hint"
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}
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}
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$Python = Resolve-Python
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Assert-Command "npm" "Install Node.js LTS and make npm available in PATH."
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Assert-Command "ffmpeg" "Install FFmpeg and make ffmpeg.exe available in PATH."
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if (-not $NoMediaMTX) {
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Assert-Command "mediamtx" "Install MediaMTX and make mediamtx.exe available in PATH, or run with -NoMediaMTX."
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}
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if ($InstallDeps) {
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Write-Host "[StreamCore] Installing backend dependencies..."
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Push-Location $BackendDir
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& $Python -m pip install -r requirements.txt
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Pop-Location
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if (-not $NoFrontend) {
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Write-Host "[StreamCore] Installing frontend dependencies..."
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Push-Location $FrontendDir
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npm install
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Pop-Location
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}
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}
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$processes = @()
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if (-not $NoMediaMTX) {
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Write-Host "[StreamCore] Starting MediaMTX origin on RTMP :1935 and HLS :8888..."
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$processes += Start-Process -FilePath "mediamtx" -ArgumentList "mediamtx.yml" -WorkingDirectory $MediaDir -PassThru -RedirectStandardOutput (Join-Path $LogDir "mediamtx.out.log") -RedirectStandardError (Join-Path $LogDir "mediamtx.err.log")
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}
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# MediaMTX, the transcoders and the HLS tree are managed by the backend itself:
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# it starts the media origin at boot, supervises ffmpeg, and restarts either if it
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# dies. This launcher only has to bring up the process that owns all of that.
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Write-Host "[StreamCore] Starting backend on ${HostAddress}:${BackendPort} ..."
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Write-Host "[StreamCore] MediaMTX, transcoders and HLS are supervised by the backend."
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$backendArgs = @("-m", "uvicorn", "main:app", "--host", $HostAddress, "--port", "$BackendPort")
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$processes += Start-Process -FilePath $Python -ArgumentList $backendArgs -WorkingDirectory $BackendDir -PassThru -RedirectStandardOutput (Join-Path $LogDir "backend.out.log") -RedirectStandardError (Join-Path $LogDir "backend.err.log")
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if (-not $NoFrontend) {
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Write-Host "[StreamCore] Starting frontend on ${HostAddress}:${FrontendPort} ..."
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$frontendArgs = @("run", "dev", "--", "--host", $HostAddress, "--port", "$FrontendPort")
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$processes += Start-Process -FilePath "npm" -ArgumentList $frontendArgs -WorkingDirectory $FrontendDir -PassThru -RedirectStandardOutput (Join-Path $LogDir "frontend.out.log") -RedirectStandardError (Join-Path $LogDir "frontend.err.log")
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}
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Start-Sleep -Seconds 3
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Write-Host ""
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Write-Host "[StreamCore] Windows deployment started."
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Write-Host " Backend: http://127.0.0.1:$BackendPort/docs"
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if (-not $NoFrontend) { Write-Host " Frontend: http://127.0.0.1:$FrontendPort/" }
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if (-not $NoMediaMTX) {
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Write-Host " RTMP: rtmp://127.0.0.1:1935/live/<stream_key>"
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Write-Host " HLS: http://127.0.0.1:8888/<stream_key>/index.m3u8"
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}
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Write-Host " Runtime: $RuntimeDir"
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Write-Host " HLS dir: $env:LS_HLS_RUNTIME_DIR"
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Write-Host " Logs: $LogDir"
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Write-Host ""
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Write-Host "Press Ctrl+C to stop child processes."
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try {
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while ($true) {
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foreach ($proc in $processes) {
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if ($proc.HasExited) {
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throw "Process $($proc.Id) exited with code $($proc.ExitCode). Check logs in $LogDir."
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}
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}
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Start-Sleep -Seconds 2
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}
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} finally {
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Write-Host "[StreamCore] Stopping child processes..."
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foreach ($proc in $processes) {
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if (-not $proc.HasExited) { Stop-Process -Id $proc.Id -Force -ErrorAction SilentlyContinue }
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}
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}
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& $Python @backendArgs
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