Pierre-Olivier Mercier
d1db6a11d8
Add a second playback source and a weighted scheduler mixing it with Navidrome: - Scheduler picks a provider by SOURCE_WEIGHTS, falling through to the others when one has nothing ready, so no source can stall playback. - YtdlpProvider reads a hand-maintained config/urls.txt; container URLs (playlist/album/label/artist) are flat-extracted and one entry is drawn at random, honouring the anti-repeat window. Adds Track.source_url. - YtdlpFetcher downloads bestaudio via the yt-dlp library, reusing the atomic hidden-temp-then-rename pattern; Liquidsoap decodes the result. - Queue now dispatches to a fetcher registry keyed by backend. - Sweep orphaned download temp files on daemon startup (leftovers from a killed container otherwise pile up and trip the stream fallback). Verified end-to-end: yt-dlp opus decoded and served as 192 kbps MP3, and the 3:1 default mix observed in play history. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
104 lines
4.4 KiB
Markdown
104 lines
4.4 KiB
Markdown
# radieo
|
|
|
|
A personal music radio: an always-on HTTP audio stream, automatically fed from
|
|
several sources and broadcast with [Liquidsoap](https://www.liquidsoap.info/).
|
|
|
|
The goal is a hassle-free stream that always has something playing, where the
|
|
next track is picked automatically. It is meant for personal use (a couple of
|
|
simultaneous listeners), not for public broadcasting.
|
|
|
|
## How it works
|
|
|
|
radieo is built as two layers, each running in its own Docker container and
|
|
sharing a cache volume:
|
|
|
|
- **`ingest`** (Python) — the brain. It decides what to play next, resolves and
|
|
downloads tracks into a local cache, keeps a pre-filled queue, and exposes the
|
|
next track over HTTP at `GET /next`. *(currently it only serves the cache
|
|
directory; the download providers come in later milestones — see roadmap)*
|
|
- **`stream`** (Liquidsoap) — deliberately dumb. It pulls the next track from
|
|
the `ingest` daemon, broadcasts the audio over HTTP, and never goes silent
|
|
thanks to a local cache fallback.
|
|
|
|
Playback sources (planned): a [Navidrome](https://www.navidrome.org/) library
|
|
via the OpenSubsonic API, arbitrary tracks fetched with
|
|
[yt-dlp](https://github.com/yt-dlp/yt-dlp) (Bandcamp, SoundCloud, YouTube…), and
|
|
listening suggestions from a ListenBrainz RSS feed.
|
|
|
|
## Usage
|
|
|
|
Requirements: Docker with Compose v2.
|
|
|
|
```sh
|
|
# Drop some .mp3 files into the cache directory
|
|
cp /path/to/music/*.mp3 cache/
|
|
|
|
# Build and start the stream
|
|
docker compose up -d
|
|
|
|
# Listen (VLC, a browser, any audio player)
|
|
# http://localhost:8000/radio.mp3
|
|
```
|
|
|
|
Stop it with `docker compose down`.
|
|
|
|
The stream is MP3 at 192 kbps. Multiple clients can listen at the same time.
|
|
New files dropped into `cache/` are picked up automatically (the playlist is
|
|
reloaded when the directory changes).
|
|
|
|
## Configuration
|
|
|
|
Copy `.env.example` to `.env` and fill in your Navidrome details:
|
|
|
|
```sh
|
|
cp .env.example .env
|
|
# edit .env: RADIEO_NAVIDROME_URL / USER / PASSWORD / PLAYLIST
|
|
```
|
|
|
|
If the Navidrome variables are left empty, the source is simply disabled and
|
|
the stream plays whatever is already in `cache/` (the milestone-1/2 behaviour).
|
|
|
|
For the yt-dlp source, list the URLs to draw from in `config/urls.txt` (copy
|
|
`config/urls.txt.example`). Each line is either a direct track URL or a
|
|
container URL (playlist, album, label, artist page) from which one track is
|
|
picked at random. The relative mix between sources is set by
|
|
`RADIEO_WEIGHT_NAVIDROME` / `RADIEO_WEIGHT_YTDLP` (a weight of 0 disables a
|
|
source); the file being absent also disables yt-dlp.
|
|
|
|
## Current status
|
|
|
|
**Milestone 4 — yt-dlp provider: done.**
|
|
|
|
- Two playback sources feed a weighted scheduler: a Navidrome/OpenSubsonic
|
|
playlist and a hand-maintained list of yt-dlp URLs (`config/urls.txt`).
|
|
Container URLs (playlist/album/label/artist) are expanded and one track is
|
|
drawn at random, honouring the anti-repeat window.
|
|
- Each source has its own fetcher (Subsonic stream / yt-dlp download); files are
|
|
cached ahead of playback (prefetch buffer) and decoded by Liquidsoap.
|
|
- Play history and LRU retention are tracked in a SQLite database under
|
|
`state/`: only the N most recently played files are kept on disk
|
|
(`RADIEO_RETENTION_KEEP`, default 20). Orphaned download temp files are swept
|
|
on startup.
|
|
- `GET /next` returns the next track as an annotated Liquidsoap URI with real
|
|
title/artist metadata (or an empty body when nothing is ready).
|
|
- `stream` (Liquidsoap v2.4.5) pulls via `request.dynamic` and falls back to the
|
|
local `cache/` directory; `mksafe` guarantees silence rather than a crash.
|
|
- HTTP stream served at `http://localhost:8000/radio.mp3` (MP3, 192 kbps),
|
|
multiple simultaneous listeners supported.
|
|
|
|
The ListenBrainz suggestion feed comes next.
|
|
|
|
## Roadmap
|
|
|
|
1. ✅ **Broadcasting skeleton** — Liquidsoap serving the cache directory.
|
|
2. ✅ **Ingestion daemon** — Python daemon exposing `GET /next`; Liquidsoap
|
|
switches to a `request.dynamic` source with the cache as fallback.
|
|
3. ✅ **Navidrome provider** — play from an OpenSubsonic playlist, with caching,
|
|
LRU retention and play history.
|
|
4. ✅ **yt-dlp provider** — fetch tracks from a maintained URL/artist list;
|
|
weighted mixing between sources.
|
|
5. **Canonicalizer** — ListenBrainz MBID lookup for source-agnostic
|
|
de-duplication.
|
|
6. **ListenBrainz provider** — parse the RSS suggestions feed and resolve each
|
|
one to Navidrome or yt-dlp.
|
|
7. **Polish** — crossfade, robustness, optional web player, config file.
|