Rename everything to Stemify, and add a README

- Python package stemroller/ -> stemify/, Android package com.stemroller.mobile ->
  com.stemify.mobile, app names, QML module, icons, desktop entries, MPRIS and Plex
  product names
- Done-markers are now .stemify.json; stemd renames the old ones once at startup so
  songs separated before the rename aren't separated again
- A top-level README covering the server, the Android and Android Auto app, the EQ,
  Stem Now and the desktop apps

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ClericalErrorandClaude Opus 5.5 committed 2026-10-14 21:24:56 -07:00
1 parent 1845f03c41
commit 45bc0eefe0
159 files changed
+1136 -542

No files matched your search

+12 -7
View File
@@ -1,6 +1,6 @@
# stemserve
Serves the StemRoller stems folder to the Android app: an index of every separated
Serves the Stemify stems folder to the Android app: an index of every separated
song, the stem files with HTTP range support (so the phone can seek and stream), per-stem
waveforms, and optional Opus transcodes so cached songs take ~1/8 the space.
@@ -15,7 +15,7 @@ from the desktop). From an unraid terminal:
```sh
mkdir -p /mnt/user/appdata/stemserve/cache /mnt/user/appdata/stemd/state/queue
chown -R 99:100 /mnt/user/appdata/stemserve /mnt/user/appdata/stemd
cp -r /path/to/stemRoller2/server /mnt/user/appdata/stemserve/src # or copy over SMB
cp -r /path/to/stemify/server /mnt/user/appdata/stemserve/src # or copy over SMB
docker build -t stemserve /mnt/user/appdata/stemserve/src
docker run -d --name stemserve --restart unless-stopped -p 8765:8765 \
-v /mnt/user/Music/Stems:/stems:ro \
@@ -36,7 +36,7 @@ curl http://192.168.86.2:8765/api/info
| Variable | Default | Meaning |
|-------------|----------|------------------------------------------------------------|
| `STEMS_DIR` | `/stems` | The StemRoller library output folder |
| `STEMS_DIR` | `/stems` | The Stemify library output folder |
| `CACHE_DIR` | `/cache` | Opus transcodes and waveforms (safe to delete) |
| `PORT` | `8765` | Listen port |
| `TOKEN` | empty | If set, requests need `X-Stem-Token` or `?token=` |
@@ -66,19 +66,19 @@ STEMS_DIR=/var/mnt/unraid/Music/Stems CACHE_DIR=~/.cache/stemserve python3 stems
# stemd: separate new music on the server's GPU
`stemd.py` keeps the stems library up to date. It walks the music folder, separates every
track whose stems folder has no `.stemroller.json` yet (BS-RoFormer SW 6-stem by default,
track whose stems folder has no `.stemify.json` yet (BS-RoFormer SW 6-stem by default,
like the desktop app), and writes them in the layout above, so stemserve and the phone pick
them up within `INDEX_TTL`. Once it has caught up it checks for new music every 30 minutes.
Nothing runs on the desktop.
It writes the same layout the desktop app's old library mode did (`stemroller/library_core.py`),
It writes the same layout the desktop app's old library mode did (`stemify/library_core.py`),
so the ~300 tracks already done on the desktop are skipped, and a track interrupted
mid-way (`docker stop`, a reboot) is redone from scratch next time.
## Run it on unraid (NVIDIA)
Needs the **Nvidia-Driver** plugin (Apps tab). The image builds from the repo root
because it uses the `stemroller` package. Copy the repo, or at least `stemroller/`,
because it uses the `stemify` package. Copy the repo, or at least `stemify/`,
`server/` and `.dockerignore`, to `/mnt/user/appdata/stemd/src`, then from an unraid terminal:
```sh
@@ -115,9 +115,14 @@ skipped here too.
To update after changing the code: copy the files over again, rebuild, then
`docker rm -f stemd` and repeat the `docker run`.
Coming from before the rename to Stemify: update stemd first. On its first start it renames
the old done-markers in the stems folder to `.stemify.json` (it logs how many), so nothing is
separated twice. The new stemserve only looks for the new name, so until stemd has done that
the app would briefly see no stems.
| Variable | Default | Meaning |
|--------------|------------------|------------------------------------------------------|
| `MODEL` | `roformer_bs_sw` | any id from `stemroller/catalog.py` |
| `MODEL` | `roformer_bs_sw` | any id from `stemify/catalog.py` |
| `DEVICE` | `cuda` | `cuda`, `cuda:N` or `cpu` |
| `RESCAN_MIN` | `30` | minutes between scans once caught up |
| `FP16` | `1` | half precision on the GPU (`0` for fp32) |
+4 -4
View File
@@ -1,5 +1,5 @@
# stemd: separates new music into stems on the server's NVIDIA GPU (see stemd.py).
# Build from the repo root, since it needs the stemroller package:
# Build from the repo root, since it needs the stemify package:
# docker build -f server/stemd.Dockerfile -t stemd .
FROM python:3.12-slim
RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg && rm -rf /var/lib/apt/lists/*
@@ -12,9 +12,9 @@ COPY server/stemd-requirements.txt /tmp/
RUN apt-get update && apt-get install -y --no-install-recommends gcc libc6-dev \
&& pip install --no-cache-dir --no-deps -r /tmp/stemd-requirements.txt && pip check \
&& apt-get purge -y gcc libc6-dev && apt-get autoremove -y && rm -rf /var/lib/apt/lists/*
COPY stemroller/__init__.py stemroller/catalog.py stemroller/library_core.py /app/stemroller/
COPY stemroller/worker/__init__.py stemroller/worker/__main__.py stemroller/worker/audio_io.py \
stemroller/worker/backends.py /app/stemroller/worker/
COPY stemify/__init__.py stemify/catalog.py stemify/library_core.py /app/stemify/
COPY stemify/worker/__init__.py stemify/worker/__main__.py stemify/worker/audio_io.py \
stemify/worker/backends.py /app/stemify/worker/
COPY server/stemd.py /app/server/
ENV MUSIC_DIR=/music STEMS_DIR=/stems STATE_DIR=/state MODELS_DIR=/models \
TORCH_HOME=/models/torch HF_HOME=/models/hf NUMBA_CACHE_DIR=/tmp/numba HOME=/tmp \
+33 -6
View File
@@ -3,7 +3,7 @@
Runs on the server next to stemserve. Walks MUSIC_DIR, and for each track whose folder
under STEMS_DIR has no marker it runs the separation on the GPU and writes the stems with
the same layout and marker as the desktop app (stemroller/library_core.py), so stemserve
the same layout and marker as the desktop app (stemify/library_core.py), so stemserve
and the phone pick them up as they land. Once caught up it looks again every RESCAN_MIN.
"Stem Now" in the app goes through stemserve, which drops a request (a JSON list of Plex
@@ -17,7 +17,7 @@ Settings (environment):
STATE_DIR /state failed-track list
QUEUE_DIR STATE_DIR/queue "Stem Now" requests from stemserve
MODELS_DIR /models model weights, downloaded on first use
MODEL roformer_bs_sw any id from stemroller/catalog.py
MODEL roformer_bs_sw any id from stemify/catalog.py
DEVICE cuda cuda, cuda:N or cpu
RESCAN_MIN 30 minutes between scans once caught up
FP16 1 half precision on the GPU
@@ -36,8 +36,8 @@ import time
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from stemroller.catalog import MODELS_BY_ID # noqa: E402
from stemroller.library_core import (MAX_SECONDS, SOURCE_RANK, duration, is_done, is_share_error, # noqa: E402
from stemify.catalog import MODELS_BY_ID # noqa: E402
from stemify.library_core import (MARKER, MAX_SECONDS, SOURCE_RANK, duration, is_done, is_share_error, # noqa: E402
iter_tracks, signature, write_track)
MUSIC_DIR = os.environ.get("MUSIC_DIR", "/music")
@@ -101,7 +101,7 @@ class _NoProgress:
class Separator:
def __init__(self):
import torch
from stemroller.worker.backends import DemucsBackend, RoformerBackend
from stemify.worker.backends import DemucsBackend, RoformerBackend
self.torch = torch
self.model = MODELS_BY_ID[MODEL]
@@ -116,7 +116,7 @@ class Separator:
def run(self, path, tmp):
# Imported late: worker/__main__ sets ROCm env defaults, harmless here, and owns Job's
# parameter rules (overlap, fp16, ...), which must match the desktop's.
from stemroller.worker.__main__ import Job
from stemify.worker.__main__ import Job
job = Job({"id": "stemd", "file": path, "model": MODEL, "out_dir": tmp, "segment": SEGMENT,
"shifts": SHIFTS, "overlap": OVERLAP, "fp16": FP16}, _NoProgress())
if "file" in self.model and not os.path.exists(os.path.join(MODELS_DIR, self.model["file"])):
@@ -183,6 +183,32 @@ def separate(sep, failed, path, dest, sig, label):
return True
# The project was renamed to Stemify; songs separated before that carry the old marker name.
# migrate_markers() renames them once so they aren't separated again. Once stemd has run it
# against your library, this constant, the function and its call in main() can be deleted.
LEGACY_MARKER = ".stemroller.json"
def migrate_markers():
"""Rename every legacy done-marker under STEMS_DIR to MARKER (a few seconds per 10k songs)."""
n = 0
for root, dirs, files in os.walk(STEMS_DIR):
dirs[:] = [d for d in dirs if not d.startswith(".")]
if LEGACY_MARKER not in files:
continue
old, new = os.path.join(root, LEGACY_MARKER), os.path.join(root, MARKER)
try:
if MARKER in files:
os.remove(old)
else:
os.replace(old, new)
n += 1
except OSError as e:
log(f"can't rename {old}: {e}")
if n:
log(f"renamed {n:,} {LEGACY_MARKER} markers to {MARKER}")
def resolve(plex_path):
"""The music file a Plex path names, or None. Plex sees the library under its own mount
point, so this takes the longest tail of the path (folder and file at least) that exists
@@ -320,6 +346,7 @@ def main():
except OSError as e:
log(f"WARNING: can't create {QUEUE_DIR} ({e}); Stem Now won't work")
log(f"stemd: {MUSIC_DIR} -> {STEMS_DIR}")
migrate_markers()
sep = Separator()
failed = Failed()
while not stop.is_set():
+4 -4
View File
@@ -1,11 +1,11 @@
#!/usr/bin/env python3
"""stemserve: serves StemRoller library stems to the Android app over HTTP.
"""stemserve: serves Stemify library stems to the Android app over HTTP.
Stdlib only; ffmpeg is optional and enables Opus transcodes and waveforms.
The stems folder is what stemroller.library writes:
The stems folder is what stemify.library writes:
<STEMS_DIR>/Artist/Album/01 Song/.stemroller.json
<STEMS_DIR>/Artist/Album/01 Song/.stemify.json
<STEMS_DIR>/Artist/Album/01 Song/01 Song - vocals.flac, ...
Endpoints (all GET unless noted; add ?token=... or X-Stem-Token when TOKEN is set):
@@ -44,7 +44,7 @@ TOKEN = os.environ.get("TOKEN", "")
INDEX_TTL = float(os.environ.get("INDEX_TTL", "30"))
QUEUE_DIR = os.environ.get("QUEUE_DIR", "/queue") # stemd's request folder, shared with it
MAX_BODY = 8 << 20
MARKER = ".stemroller.json"
MARKER = ".stemify.json"
VERSION = 1
FFMPEG = shutil.which("ffmpeg")
OPUS_RATES = (64, 96, 128, 160, 192, 256)