lowLatency's small per-part buffering window has very little tolerance for B-frame reordering (common in typical OBS encoder presets) — a real test stream crashed the muxer twice in ~2 minutes with "too many reordered frames" / "unable to extract DTS", tearing down and rebuilding HLS output each time (visible to viewers as buffering/stalls). Standard HLS buffers a full segment before finalizing instead of near-real-time parts, absorbing that jitter. Confirmed via a live test stream afterward: zero muxer crashes over several minutes, vs. two in the first two minutes before. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
56 lines
1.7 KiB
YAML
56 lines
1.7 KiB
YAML
# MediaMTX configuration for podsteadr.
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# Ingest: RTMP (OBS) + WebRTC/WHIP (browser). Output: HLS. Publish auth is
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# delegated to podsteadr via HTTP; stream status is polled from the API.
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logLevel: info
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api: yes
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apiAddress: :9997
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# ---- authentication ------------------------------------------------------
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authMethod: http
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authHTTPAddress: http://podsteadr-app:8095/api/mediamtx/auth
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authHTTPExclude:
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- action: api
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- action: metrics
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- action: pprof
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# ---- protocols -----------------------------------------------------------
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rtsp: no
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srt: no
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moq: no
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rtmp: yes
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rtmpAddress: :1935
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hls: yes
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hlsAddress: :8888
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# Standard HLS, not lowLatency: LL-HLS's small per-part buffering window has very little
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# tolerance for B-frame reordering (common in most OBS encoder presets), and a real test
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# stream crashed the muxer twice in ~2 minutes with "too many reordered frames" / "unable to
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# extract DTS" once frame timing got even slightly irregular. Standard HLS buffers a full
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# segment before finalizing, which absorbs that jitter — a few extra seconds of latency
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# instead of intermittent muxer crashes / viewer buffering.
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hlsVariant: mpegts
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hlsAlwaysRemux: yes
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hlsAllowOrigins: ["*"]
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webrtc: yes
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webrtcAddress: :8889
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webrtcLocalUDPAddress: :8189
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webrtcAllowOrigins: ["*"]
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# ---- recording -----------------------------------------------------------
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pathDefaults:
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record: yes
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recordPath: /recordings/%path/%Y-%m-%d_%H-%M-%S-%f
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recordFormat: fmp4
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recordPartDuration: 1s
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recordSegmentDuration: 1h
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recordDeleteAfter: 168h
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paths:
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# Streams live at live/<streamId>; publish requires the stream secret,
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# which podsteadr checks in the auth webhook.
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"~^live/[A-Za-z0-9]+$": {}
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