wrolpi/app
lrnselfreliance 0b61d3ab08
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videos: codec download preferences with transcode and strict-fail options (#701)
* videos: codec download preferences with transcode and strict-fail options

Add video_codecs/audio_codecs ordered preference lists to the video,
channel, and RSS downloaders, alongside the existing resolution
selector.  Codec preference is codec-major: a preferred codec at a
lower resolution beats another codec at a higher resolution.

When 'transcode' is enabled, a downloaded file whose streams do not
match the preferences is re-encoded with ffmpeg after download (only
the mismatching stream; targets are extensible maps, currently h264
and aac/opus/mp3).  When 'strict_codecs' is enabled and transcode is
not, a download with no matching format fails permanently instead of
falling back.

Empty codec lists produce a byte-identical yt-dlp command to before.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* videos: honor strict_codecs when transcode cannot produce the preference

Review fixes:
- strict_codecs is now suppressed only when transcoding can produce a
  preferred codec for every non-empty preference list (new
  transcode_can_satisfy_codecs); av1-only preferences with transcode
  enabled fail under strict instead of silently keeping the file.
- No partial transcode: an unfixable video mismatch blocks an
  audio-only conversion (and vice versa); the mismatch falls through
  to strict/keep.
- fsync the transcode output before rename, and the directory after,
  so power loss on a Pi cannot leave a truncated final file.
- mp3 yt-dlp pattern matches mp4a.6B as well as mp4a.6b.
- ffmpeg maps use 0:V:0 (excludes attached pictures) and 0🅰️0?
  (tolerates missing audio).
- Strict toggle is no longer disabled by transcode in the UI; popup
  wording corrected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* videos: serialize transcodes machine-wide via shared_ctx lock

Sanic runs multiple worker processes, so an asyncio primitive cannot
serialize transcodes across download workers.  A multiprocessing.Lock
in shared_ctx now guarantees only one ffmpeg transcode runs at a time
on the machine; waiting workers poll the lock asynchronously so the
event loop stays responsive while a transcode holds it for hours.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* videos: transcode-lock review fixes

- Document that a crashed lock holder requires an API restart; this is
  accepted rather than adding owner-death recovery.
- Move the 'Transcoding' user notification to after the lock is
  acquired, so it fires when work begins rather than before a
  potentially hours-long wait.
- Soften the lock test docstring to what it measures (in-process
  wait/release); trim the acquire docstring to the polling rationale.
- Give transcode_lock its own section header in contexts.py.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-09-07 09:12:00 -06:00
..
cypress e2e: exercise the FileBrowser footer buttons against real files (#670) 2026-08-19 20:27:29 -06:00
public ui: media filtering is a per-theme setting, not a night-mode hardcode 2026-08-08 18:04:00 -06:00
scripts ui: the last of Semantic UI, in name and in dead CSS 2026-08-08 18:05:54 -06:00
src videos: codec download preferences with transcode and strict-fail options (#701) 2026-09-07 09:12:00 -06:00
.gitignore A new start 2021-11-01 16:43:09 -06:00
cypress.config.js e2e: exercise the FileBrowser footer buttons against real files (#670) 2026-08-19 20:27:29 -06:00
package-lock.json build(deps): bump the npm-dependencies group in /app with 7 updates (#700) 2026-09-03 16:51:13 -06:00
package.json build(deps): bump the npm-dependencies group in /app with 7 updates (#700) 2026-09-03 16:51:13 -06:00
README.md Fixing bug where file search would issue twice on load. 2023-04-09 14:34:33 -06:00
serve.json Adding serve.json so epub.html is not rewritten by serve. Buildling app during pi-gen/debian image builds. 2025-03-13 19:34:28 -06:00
tsconfig.json test: the component suite has not run since cypress 15, on any machine (#661) 2026-08-12 21:57:07 -06:00

Getting Started with Create React App

This project was bootstrapped with Create React App.

Available Scripts

In the project directory, you can run:

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

The page will reload when you make changes.
You may also see any lint errors in the console.

npm test

Launches the test runner in the interactive watch mode.
See the section about running tests for more information.

npm run build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.
Your app is ready to be deployed!

See the section about deployment for more information.

npm run eject

Note: this is a one-way operation. Once you eject, you can't go back!

If you aren't satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.

Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.

You don't have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.

Learn More

You can learn more in the Create React App documentation.

To learn React, check out the React documentation.

Code Splitting

This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting

Analyzing the Bundle Size

This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size

Making a Progressive Web App

This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app

Advanced Configuration

This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration

Deployment

This section has moved here: https://facebook.github.io/create-react-app/docs/deployment

npm run build fails to minify

This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify