Created files

backend/Dockerfile

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+FROM python:3.11-slim
+
+RUN apt-get update && apt-get install -y ffmpeg
+
+WORKDIR /app
+
+COPY . .
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

backend/main.py

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+from fastapi import FastAPI, UploadFile, File, Form, HTTPException
+from fastapi.responses import FileResponse
+from fastapi.middleware.cors import CORSMiddleware
+import yaml
+import os
+import subprocess
+from pathlib import Path
+from utils import parse_yaml_config, get_presets_dir
+
+app = FastAPI()
+
+# Allow CORS (frontend access)
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+@app.post("/upload-config/")
+async def upload_config(file: UploadFile = File(...)):
+    config_data = yaml.safe_load(await file.read())
+    return {"parsed": config_data}
+
+@app.post("/transcode/")
+async def transcode(yaml_config: dict):
+    try:
+        ffmpeg_cmd = parse_yaml_config(yaml_config)
+        subprocess.run(ffmpeg_cmd, check=True)
+        return {"status": "success", "cmd": ffmpeg_cmd}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+@app.get("/browse/")
+def browse(path: str = "/data"):
+    if not os.path.exists(path):
+        raise HTTPException(status_code=404, detail="Path not found")
+    entries = [{"name": f, "is_dir": os.path.isdir(os.path.join(path, f))} for f in os.listdir(path)]
+    return {"path": path, "entries": entries}
+
+@app.post("/save-preset/")
+def save_preset(name: str = Form(...), file: UploadFile = File(...)):
+    path = get_presets_dir() / f"{name}.yml"
+    with open(path, "wb") as f:
+        f.write(file.file.read())
+    return {"message": "Preset saved"}
+
+@app.get("/list-presets/")
+def list_presets():
+    return {"presets": [p.stem for p in get_presets_dir().glob("*.yml")]}
+
+@app.get("/preset/{name}")
+def get_preset(name: str):
+    path = get_presets_dir() / f"{name}.yml"
+    if not path.exists():
+        raise HTTPException(status_code=404, detail="Preset not found")
+    return FileResponse(path)

backend/requirements.txt

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+fastapi
+uvicorn
+pyyaml

backend/utils.py

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+from pathlib import Path
+
+def get_presets_dir() -> Path:
+    Path("./presets").mkdir(exist_ok=True)
+    return Path("./presets")
+
+def parse_yaml_config(config: dict) -> list:
+    in_file = config.get("input_file")
+    out_file = config.get("output_file")
+    video = config.get("video", {})
+    audio = config.get("audio", {})
+
+    cmd = ["ffmpeg", "-y", "-i", in_file]
+
+    if video:
+        cmd += ["-c:v", video.get("codec", "libx264")]
+        if "bitrate" in video:
+            cmd += ["-b:v", video["bitrate"]]
+        if "preset" in video:
+            cmd += ["-preset", video["preset"]]
+
+    if audio:
+        cmd += ["-c:a", audio.get("codec", "aac")]
+        if "bitrate" in audio:
+            cmd += ["-b:a", audio["bitrate"]]
+        if "channels" in audio:
+            cmd += ["-ac", str(audio["channels"])]
+
+    cmd += [out_file]
+    return cmd

docker-compoe.yml

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+version: "3.8"
+
+services:
+  backend:
+    build: ./backend
+    volumes:
+      - ./data:/data
+      - ./backend/presets:/app/presets
+    ports:
+      - "8000:8000"
+
+  # (Frontend to be added here)