Keep the API focused on stable ZeroGPU transcription

app.py

@@ -1,9 +1,7 @@
 """The dedicated ZeroGPU transcription API for Score Studio."""
 import logging
-import json
 import os
 from pathlib import Path
-import re
 import shutil
 import subprocess
 import sys
@@ -14,7 +12,6 @@ import gradio as gr
 import spaces
 import torch
 from transformers import AutoModel
-from yt_dlp import YoutubeDL
 
 MODEL_ID = "m-a-p/SheetSage2"
 REVISION = "eab522a8168e8b8b8c4856bf8609cd86198f01fe"
@@ -117,46 +114,7 @@ def transcribe(audio, start, duration, melody_only, piano, progress=gr.Progress(
         raise gr.Error("Conversion failed. Try a shorter excerpt. Details are available in the Space logs.")
 
 
-def import_youtube(url):
-    match = re.fullmatch(r"https?://(?:www\.|m\.|music\.)?(?:youtube\.com/(?:watch\?v=|shorts/|live/)|youtu\.be/)([A-Za-z0-9_-]{11})(?:[?&/].*)?", str(url).strip())
-    if not match:
-        raise gr.Error("Enter a valid YouTube video link.")
-    video_id = match.group(1)
-    job = Path(tempfile.mkdtemp(prefix="youtube-", dir=ROOT))
-    try:
-        options = {
-            "quiet": True, "no_warnings": True, "noplaylist": True,
-            "socket_timeout": 15, "retries": 1, "extractor_retries": 1,
-            "fragment_retries": 1, "js_runtimes": {"node": {}},
-            "format": "bestaudio/best", "outtmpl": str(job / "audio.%(ext)s"),
-            "max_filesize": 100 * 1024 * 1024,
-        }
-        with YoutubeDL(options) as ydl:
-            source = "https://www.youtube.com/watch?v=" + video_id
-            info = ydl.extract_info(source, download=False)
-            duration = float(info.get("duration") or 0)
-            if info.get("is_live") or info.get("age_limit", 0) > 0:
-                raise gr.Error("Live or age-restricted videos are not supported.")
-            if not 5 <= duration <= 600:
-                raise gr.Error("Choose a video between five seconds and ten minutes.")
-            ydl.process_info(info)
-        audio = next((p for p in job.glob("audio.*") if p.is_file() and p.stat().st_size > 2048), None)
-        if not audio:
-            raise gr.Error("No audio could be read from this video.")
-        metadata = json.dumps({"title": info.get("title", "YouTube audio"),
-            "artist": info.get("uploader", ""), "duration": duration,
-            "thumbnail": f"https://i.ytimg.com/vi/{video_id}/hqdefault.jpg", "url": source})
-        return str(audio), metadata
-    except gr.Error:
-        raise
-    except Exception as exc:
-        logging.warning("YouTube API import failed: %s", str(exc)[:800])
-        if "not a bot" in str(exc).lower() or "confirm you" in str(exc).lower():
-            raise gr.Error("YouTube blocked this server address.")
-        raise gr.Error("The API could not download this YouTube audio.")
-
-
-with gr.Blocks(title="Score Studio API", delete_cache=(3600, 86400)) as demo:
+with gr.Blocks(title="Score Studio API", delete_cache=(3600, 86400)) as demo:
     gr.Markdown("# Score Studio API\nThe ZeroGPU transcription engine for Score Studio. "
                 "Use the API below to turn audio into editable ABC, MIDI, PDF and piano audio.")
     audio = gr.Audio(type="filepath", label="Audio", sources=["upload"])
@@ -174,12 +132,6 @@ with gr.Blocks(title="Score Studio API", delete_cache=(3600, 86400)) as demo:
     run.click(transcribe, [audio, start, duration, melody, piano],
               [status, gallery, pdf, preview, downloads, abc],
               api_name="transcribe", concurrency_limit=1)
-    youtube_url = gr.Textbox(visible=False)
-    youtube_run = gr.Button(visible=False)
-    youtube_audio = gr.File(visible=False)
-    youtube_metadata = gr.Textbox(visible=False)
-    youtube_run.click(import_youtube, youtube_url, [youtube_audio, youtube_metadata],
-                      api_name="youtube_import", concurrency_limit=2)
     gr.Markdown("Powered by [SheetSage2](https://huggingface.co/m-a-p/SheetSage2), "
                 "CC BY-NC 4.0. Temporary files expire after 24 hours.")
 

packages.txt

@@ -1,5 +1,4 @@
 ffmpeg
-nodejs
 libsndfile1
 libglib2.0-0
 libnss3

requirements.txt

@@ -10,4 +10,3 @@ pretty_midi==0.2.10
 mido==1.3.3
 setuptools==78.1.1
 playwright==1.58.0
-yt-dlp[default]==2026.8.19