Files
live/backend/services/media_service.py
T
adminandClaude Opus 4.8 996e3fea39 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]>
2026-09-22 18:07:56 +08:00

57 lines
2.3 KiB
Python

import httpx
import asyncio
from config import settings
class MediaMTXService:
@staticmethod
def get_rtmp_url(stream_key: str) -> str:
return f"rtmp://{settings.media_origin_host}:{settings.media_origin_rtmp_port}/live/{stream_key}"
@staticmethod
def get_hls_url(node: dict, stream_key: str) -> str:
return f"http://{node['host']}:{node['hls_port']}/{stream_key}/index.m3u8"
@staticmethod
async def get_origin_status(stream_key: str) -> dict | None:
try:
async with httpx.AsyncClient(timeout=httpx.Timeout(5)) as client:
resp = await client.get(
f"http://{settings.media_origin_host}:{settings.media_origin_api_port}/v3/paths/list"
)
if resp.status_code == 200:
data = resp.json()
for item in data.get("items", []):
# Paths are named after the RTMP URL key, so a publisher on
# rtmp://host/live/<key> shows up as "live/<key>", never as
# the bare key. This MediaMTX exposes the reader list itself
# rather than a readersCount/sourceReady pair.
if item.get("name") in (stream_key, f"live/{stream_key}"):
return {
"ready": item.get("ready", False),
"source_ready": bool(item.get("source")),
"readers": len(item.get("readers") or []),
}
except Exception:
return None
return None
@staticmethod
async def get_edge_status(node: dict, stream_key: str) -> dict | None:
try:
async with httpx.AsyncClient(timeout=httpx.Timeout(3)) as client:
resp = await client.get(
f"http://{node['host']}:{node['api_port']}/v3/paths/list"
)
if resp.status_code == 200:
data = resp.json()
for item in data.get("items", []):
if item.get("name") == stream_key:
return {"ready": item.get("ready", False), "readers": item.get("readersCount", 0)}
except Exception:
return None
return None
media_service = MediaMTXService()