- search_youtube, fetch_trending, fetch_featured_channels now use _meta_run
- Replaced ThreadPoolExecutor(4) parallel searches with sequential loop
- Replaced ThreadPoolExecutor(3) parallel featured-channel fetches with sequential
- _fetch_and_index_channel passes polite=True to fetch_channel/video_metadata
Discovery was firing 4+ simultaneous yt-dlp processes, each with cookies,
which is what invalidated the session.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
fetch_video_metadata and fetch_channel_metadata now take polite=True for
background tasks (enforces 5s+ gap via global lock) while user-facing
calls (watch page, follow channel, download) use polite=False and run
immediately.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
All fetch_video_metadata / fetch_channel_metadata / fetch_channel_playlists
/ fetch_available_subs calls now go through _meta_run which enforces a
minimum 5s gap (+ 0.5-2.5s random jitter) across all concurrent tasks.
Per-task sleep loops removed since the global lock serializes everything.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
_stable_thumbnail expects a video ID but was being passed a playlist ID
(PLxxx), producing a broken URL. Now picks the best thumbnail from
yt-dlp's thumbnails array, falling back to the singular thumbnail field.
Also backfills playlist.thumbnail_url from the first video when indexing
a playlist that still has no thumbnail.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Popular fetch now does a two-phase approach: fast flat-playlist to get
IDs in popularity order, then parallel full metadata fetch (8 workers)
to get real view_count and published_at for each video. Previously
flat-playlist mode returned timestamp/view_count as null.
Enrich task now also backfills published_at and view_count (not just
description). Startup limit 3→50, enrichment sleep 2s→0.5s.
Raise all thread pool sizes to match 8-core machine:
- Discovery search: 5→8 workers
- Graph signal: 4→8 workers
- Popular fetch: 5→8 workers
- Download semaphore default 3→6, cap 10→16
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- New playlists router: fetch channel playlists from YouTube, index
playlist videos, browse by playlist with pagination
- Playlist model gets video_ids column to store ordered video list
- Register playlists router in main.py with DB migration
- Add Playlists tab to Channel page: grid of playlist cards, click to
browse videos, index/re-index per playlist
- Fix explore older videos skipping all entries without published_at;
flat-playlist entries for older videos rarely include timestamp data
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Channel page:
- "Explore older videos" button fetches 100 videos at a time further back
in the channel history using yt-dlp --playlist-start/--playlist-end
- "Fetch entire history" still available for full crawl
- Backend: /channels/{id}/explore?page=N endpoint + playlist offset support
in fetch_channel_metadata(start_video=N)
Home feed:
- New "Rediscover" mode: older unwatched videos (90+ days old) from
followed channels, randomly sampled then re-ranked by tag affinity
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Run search queries concurrently (5 workers) instead of sequentially —
cuts crawl time dramatically. Add graph signal: fetch featured channels
from followed channels' /channels tab in parallel (4 workers), which
surfaces creator-curated recommendations as a high-signal, diverse pool
that search alone can't reach.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Strip yt-dlp's align:start position:0% cue settings from VTT files
after both video download and subtitle-only download so CSS ::cue centers them
- CC chip now shows already-downloaded langs (e.g. 'CC: en') directly
from disk with a '+' button to add more — no YouTube call needed
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- download_subs_only(): yt-dlp --skip-download to fetch just .vtt sidecar
- POST /by-yt/{ytId}/download-subs endpoint
- CC chip now visible on downloaded videos; clicking checks YouTube,
shows lang picker with "Add subtitles" button separate from re-download
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Convert subs to .vtt (was .srt which browsers don't support in <track>)
- Add GET /subtitle-files endpoint: instant disk scan for .vtt sidecar files,
no yt-dlp call needed
- Inject <track> elements into the video player for each .vtt on disk;
browser CC button appears automatically
- Before download: CC chip triggers YouTube availability check (slow, on demand)
- After download with subs: shows "CC ✓" — subtitles live in the player controls
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- fetch_available_subs() queries yt-dlp for manual + auto-generated
subtitle langs available on YouTube for any given video
- GET /api/videos/by-yt/{ytId}/subs exposes this to the frontend
- DownloadRequest now accepts subtitle_langs to override the global
setting on a per-download basis
- Watch page fetches available subtitle langs on load (in parallel),
shows a CC dropdown with manual langs + auto-generated langs labeled
"(auto)"; selected lang is passed through to the download
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- auto-sync daemon: background thread checks every hour and syncs followed
channels for users with sync_interval_hours set (6/12/24h options)
- disk stats: /api/stats now returns total/used/free/download bytes;
Stats page shows a disk usage bar
- subtitles: subtitle_langs setting (e.g. "en,sv") passed through all
download paths; yt-dlp writes .srt files alongside the video
- Settings page: sync interval dropdown + subtitle languages input
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The Merger+ffmpeg faststart postprocessor arg was overwritten by the
subsequent embed-metadata and embed-thumbnail passes anyway, making it
a pointless extra ffmpeg remux. Dropped it and restored the embeds.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Both flags trigger extra ffmpeg passes over the entire file after the
stream merge. They're unnecessary — metadata lives in the DB and
thumbnails come from YouTube. Removing them cuts the post-join wait
to just the faststart rewrite.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
yt-dlp 2026.03.17 dropped support for tv_embedded — it silently skips it
and falls back to web-only, which only exposes the pre-merged 360p format
(ID 18). The override was added to avoid SABR restrictions but is now the
cause of the low-quality downloads.
Removing --extractor-args restores yt-dlp's default client selection
(android_vr + web fallback) which exposes all formats up to 2160p.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The per-quality format strings fell back to best[height<=NNN] which on
YouTube resolves to pre-merged streams capped at ~360p, causing every
quality selector choice to silently download low-res video. Replace with
bestvideo+bestaudio as the intermediate fallback so adaptive streams are
always preferred over pre-merged ones.
Also fix detect_resolution to correctly label 1440p and 2160p files
instead of capping the display at 1080p.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
YouTube's web client gets SABR format restrictions in 2025-2026 yt-dlp,
limiting available streams and causing fallback to 360p. tv_embedded
bypasses SABR and exposes the full format list including 4K.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Most modern YouTube videos use VP9/AV1, so the old bestvideo[ext=mp4][vcodec^=avc1]
filter always failed and fell through to format codes 22/18 (720p/360p).
--merge-output-format mp4 handles the container; no need to restrict codec.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
max_comments takes thread_count,total,replies_per_thread,reply_pages.
Passing just one value left the rest unset which caused yt-dlp to fetch
only 1 comment. Now passes 20,20,0,0 to fetch 20 top-level comments
with no replies. Also switch --no-download to --skip-download.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
--write-comments writes to .info.json reliably; parsing stdout with
--dump-json was never guaranteed to include comments. Use a TemporaryDirectory,
write the info.json there, read it, then let the context manager clean up.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Comments: switch from CLI --write-comments to yt-dlp Python API with
getcomments=True — more reliable, proper extractor_args dict format
Dislikes: add dislike_count column, fetch from returnyoutubedislike.com
after each video metadata upsert (5s timeout, non-fatal)
UI: replace emoji like count with a like/dislike ratio bar — blue fill
showing like proportion, labels on each end; views stay in meta row
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
yt-dlp separates extractor args with ; not ,. The malformed arg was
causing max_comments to parse as a garbage string, fetching ~1 comment.
Also swap max_comment_depth (not a real YouTube extractor arg) for
comment_sort=top to get highest-engagement comments first.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Same pattern as view_count: model column, yt-dlp extraction, SQL select,
VideoDetail field, startup migration, and display in Watch meta row.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Video model: view_count column (Integer, nullable)
- ytdlp._normalize_video: extract view_count from yt-dlp info
- _VIDEO_SELECT: include v.view_count in all queries
- VideoDetail schema: view_count field
- Watch page: formatViews() helper, show "X.XM views" in meta row
alongside date and category
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- VideoComment model (video_id, author, text, likes, is_pinned, published_at)
- fetch_video_comments() in ytdlp.py: top 20 comments, no reply threads,
sorted pinned-first then by likes
- GET /videos/by-yt/{id}/comments — returns cached comments instantly
- POST /videos/by-yt/{id}/comments/refresh — fetches from YouTube, stores, returns
- Watch page: CommentsSection shows "Load comments" button when uncached,
renders comments with author/likes once loaded; Refresh link to re-fetch
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add bottom tab bar (Home/Following/Discover/Downloads/Settings) for mobile
- Fetch and display channel banner images on channel pages
- Fix ChannelCard: channels without a local DB id now follow+navigate on click
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nodeenv is a Python package that downloads a pre-built Node.js binary —
no apt repos, no compilation, guaranteed to work in python:3.12-slim.
The 'node' binary is linked into /usr/local/bin so yt-dlp can find it.
With Node.js available the web client works fully (37 formats) and can
solve YouTube's n-challenge that every other approach was failing on.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
web_embedded: supports cookies, no Node.js/JS runtime needed, 23 video
formats available. android_vr was skipped by yt-dlp when cookies are
present since that client doesn't support cookie auth.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
android_vr provides pre-signed format URLs that bypass YouTube's
n-challenge and signature JS requirements entirely. Tested: 23 video
formats available without any JavaScript runtime installed.
Reverts Node.js Dockerfile addition (which failed to build anyway).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Node.js is required by yt-dlp to solve YouTube's n-challenge (format URL
deobfuscation). Without it the web client returns no video formats.
The tv and ios player clients were removed — both require GVS PO tokens
that we don't have, so they only produce warnings and block every request.
The web client with Node.js installed gives 30+ formats and works cleanly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- _cookie_args() no longer falls through to --cookies-from-browser when
cookies_file is configured but missing. Firefox isn't installed in the
Docker image, so that fallback caused yt-dlp to exit with empty stdout
and every metadata fetch to return "Video not found on YouTube".
- fetch_video_metadata() now retries without auth args if the first call
fails, so a broken cookie config can't block public video fetches.
- Add use_oauth2 setting + full device-auth flow (POST /settings/oauth2-init,
GET /settings/oauth2-status) with OAuth2Section UI in Settings page.
- Add GET /settings/ytdlp-test diagnostics endpoint.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Self-hosted personal YouTube management app.
FastAPI + SQLite backend, React + Vite + Tailwind frontend.
Dockerfiles and compose included for Portainer deployment.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
