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owncast/build/javascript/README.md
Gabe Kangas 6ea9affce0
HLS video handling/storage/state refactor (#151) 
* WIP with new transcoder progress monitor

* A whole different WIP in progress monitoring via local PUTs

* Use an actual hls playlist parser to rewrite master playlist

* Cleanup

* Private vs public path for thumbnail generation

* Allow each storage provider to make decisions of how to store different types of files

* Simplify inbound file writes

* Revert

* Split out set stream as connected/disconnected state methods

* Update videojs

* Add comment about the hls handler

* Rework of the offline stream state.  For #85

* Delete old unreferenced video segment files from disk

* Cleanup all segments and revert to a completely offline state after 5min

* Stop thumbnail generation on stream stop. Copy logo to thumbnail on cleanup.

* Update transcoder test

* Add comment

* Return http 200 on success to transcoder. Tweak how files are written to disk

* Force pixel color format in transcoder

* Add debugging info for S3 transfers. Add default ACL.

* Fix cleanup timer

* Reset session stats when we cleanup the session.

* Put log file back

* Update test

* File should not be a part of this commit

* Add centralized shared performance timer for use anywhere

* Post-rebase cleanup

* Support returning nil from storage provider save

* Updates to reflect package changes + other updates in master

* Fix storage providers being overwritten

* Do not return pointer in save. Support cache headers with S3 providers

* Split out videojs + vhs and point to specific working versions of them

* Bump vjs and vhs versions

* Fix test

* Remove unused

* Update upload warning message

* No longer valid comment

* Pin videojs and vhs versions
2020-10-14 14:07:38 -07:00

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Third party web dependencies

Owncast's web frontend utilizes a few third party Javascript and CSS dependencies that we ship with the application.

To add, remove, or update one of these components:

  1. Perform your npm install/uninstall/etc, or edit the package.json file to reflect the change you want to make.
  2. Edit the snowpack install block of package.json to specify what files you want to add to the Owncast project. This can be an entire library (such as preact) or a single file (such as video.js/dist/video.min.js). These paths point to files that live in node_modules.
  3. Run npm run build. This will download the requested module from NPM, package up the assets you specified, and then copy them to the Owncast web app in the webroot/js/web_modules directory.
  4. Your new web dependency is now available for use in your web code.

VideoJS versions

Currently Videojs version 7.8.3 and http-streaming version 2.2.0 are hardcoded because these are versions that have been found to work properly with our HLS stream. Other versions have had issues with things like discontinuities causing a loading spinner.

So if you update videojs or vhs make sure you do an end-to-end test of a stream and make sure the "this stream is offline" ending video displays properly.