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Author	SHA1	Message	Date
Deivid Soto	209ea38ecf	feat(transcode): dynamic H.264 level + HW probe + capability reporting Three related fixes around 4K-source transcoding that left the web player stuck on "preparing session" with no useful diagnostics: 1. Dynamic -level:v derived from output height (hls.go, transcoder.go). The previous fixed "4.0" silently rejected anything taller than 1080p inside libx264 — "frame MB size > level limit", "DPB size > level limit" — and emitted unplayable segments. Helper H264LevelForHeight() now picks 4.0 / 5.0 / 5.1 / 6.0 from the actual encode height. 2. New `unarr probe-hwaccel` diagnostic command. Lists the HW encoders compiled into ffmpeg, the device files / drivers present, and the backend the daemon would actually pick today. Surfaces the canonical gotcha: a host with an RTX 3090 + nvidia-smi but a Homebrew ffmpeg built without --enable-nvenc still falls back to libx264 software. 3. Register payload now includes hwAccel + maxTranscodeHeight so the web side can suggest a smaller alternate quality before the user even tries to play a 4K source on a software-only host. Software-only = 1080p cap, any HW backend = 2160p cap.	2026-05-08 15:57:02 +02:00
Deivid Soto	4314c06c5c	feat(stream): pion-based WebRTC byte streamer for browser playback Replaces the broken anacrolix WebTorrent path with a custom WebRTC peer that the browser drives directly. Architecture matches plan/clever- weaving-dove.md (Fase 2 + 3 + 6 of the streaming pivot). - engine/wire: shared 12-byte binary frame format (Hello / RangeReq / RangeData / RangeEnd / Cancel / Ping / Pong / SeekHint). Roundtrip + oversized-frame rejection tests. - agent/signal_client: SSE consumer + POST sender for SDP/ICE relay through /api/internal/stream/signal/<id>; auto-reconnects. - engine/webrtc_stream: pion v4 PeerConnection + DataChannel pump. Reads file via os.ReadAt, chunks RangeData at 16 KiB, honours app- level backpressure with SetBufferedAmountLowThreshold. - cmd/daemon dispatcher learns mode webrtc_stream + new webrtcSessionRegistry tracks per-session cancel funcs for clean shutdown. - engine/probe + hwaccel + transcoder: foundation for Fase 2.5 (codec detection, NVENC/QSV/VAAPI/VideoToolbox autodetection, ffmpeg pipe wrapper to fragmented MP4). Integration into webrtc_stream still pending. - pion/webrtc/v4 promoted from indirect to direct dep. End-to-end against unarr-dev confirms a 122 MB 1080p H.264 / AAC MP4 plays in Chrome with the new pipeline.	2026-05-06 23:12:38 +02:00

Author

SHA1

Message

Date

Deivid Soto

209ea38ecf

feat(transcode): dynamic H.264 level + HW probe + capability reporting

Three related fixes around 4K-source transcoding that left the web
player stuck on "preparing session" with no useful diagnostics:

1. Dynamic -level:v derived from output height (hls.go, transcoder.go).
   The previous fixed "4.0" silently rejected anything taller than 1080p
   inside libx264 — "frame MB size > level limit", "DPB size > level
   limit" — and emitted unplayable segments. Helper H264LevelForHeight()
   now picks 4.0 / 5.0 / 5.1 / 6.0 from the actual encode height.

2. New `unarr probe-hwaccel` diagnostic command. Lists the HW encoders
   compiled into ffmpeg, the device files / drivers present, and the
   backend the daemon would actually pick today. Surfaces the canonical
   gotcha: a host with an RTX 3090 + nvidia-smi but a Homebrew ffmpeg
   built without --enable-nvenc still falls back to libx264 software.

3. Register payload now includes hwAccel + maxTranscodeHeight so the web
   side can suggest a smaller alternate quality before the user even
   tries to play a 4K source on a software-only host. Software-only =
   1080p cap, any HW backend = 2160p cap.

2026-05-08 15:57:02 +02:00

Deivid Soto

4314c06c5c

feat(stream): pion-based WebRTC byte streamer for browser playback

Replaces the broken anacrolix WebTorrent path with a custom WebRTC peer
that the browser drives directly. Architecture matches plan/clever-
weaving-dove.md (Fase 2 + 3 + 6 of the streaming pivot).

- engine/wire: shared 12-byte binary frame format (Hello / RangeReq /
  RangeData / RangeEnd / Cancel / Ping / Pong / SeekHint). Roundtrip +
  oversized-frame rejection tests.
- agent/signal_client: SSE consumer + POST sender for SDP/ICE relay
  through /api/internal/stream/signal/<id>; auto-reconnects.
- engine/webrtc_stream: pion v4 PeerConnection + DataChannel pump.
  Reads file via os.ReadAt, chunks RangeData at 16 KiB, honours app-
  level backpressure with SetBufferedAmountLowThreshold.
- cmd/daemon dispatcher learns mode webrtc_stream + new
  webrtcSessionRegistry tracks per-session cancel funcs for clean
  shutdown.
- engine/probe + hwaccel + transcoder: foundation for Fase 2.5
  (codec detection, NVENC/QSV/VAAPI/VideoToolbox autodetection,
  ffmpeg pipe wrapper to fragmented MP4). Integration into
  webrtc_stream still pending.
- pion/webrtc/v4 promoted from indirect to direct dep.

End-to-end against unarr-dev confirms a 122 MB 1080p H.264 / AAC MP4
plays in Chrome with the new pipeline.

2026-05-06 23:12:38 +02:00

2 commits