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Mike Lang 29040a166c backfiller: Allow multiple concurrent segment downloads 
This will signifigantly increase throughput when downloading
large ranges of segments.

The max concurrency is exposed as a cli arg.

We also slightly modify the logged info, so it reports segments downloaded,
not just number of missing segments (which we might skip downloading for various reasons).
 		6 years ago
backfiller backfiller: Allow multiple concurrent segment downloads 6 years ago
common Backfiller: ignore temp segments 6 years ago
cutter cutter: Fix a failure mode where we never recover from a DB conn failure in TranscodeChecker 6 years ago
downloader Audit and fix all usage of dateutil 6 years ago
nginx Fix nginx when some services are disabled 6 years ago
restreamer restreamer: Fix wrong name for parse function 6 years ago
sheetsync sheetsync: Fix a failure mode where we never recover from a DB conn failure 6 years ago
thrimshim Bug fixes to get the database connection working 6 years ago
.gitignore Set up a docker compose file to run all images 6 years ago
.travis.yml travis.yml: Make script into individual lines 6 years ago
DATABASE.md database: Add constraints on edit inputs that they must be non-NULL if state != UNEDITED 6 years ago
LICENSE Licence under MIT 6 years ago
README.md Set up a docker compose file to run all images 6 years ago
build Add nginx service that provides a frontend to all the other services 6 years ago
docker-compose.jsonnet Fix nginx when some services are disabled 6 years ago
generate-docker-compose generate-docker-compose: Clean up the container afterwards 6 years ago
generate-flamegraph generate-flamegraph: Script to create a flamegraph by querying prometheus 6 years ago
initial-design-doc.pdf Add initial design doc 6 years ago

README.md

Wubloader is a system for saving, re-serving and cutting into videos of a target twitch (or probably other HLS, but some twitch specifics are assumed) stream.

It was designed to serve the needs of the Video Strike Team as part of Desert Bus For Hope.

A full design doc can be read at initial-design-doc.pdf, but a brief overview of the components:

  • Downloader grabs segments from twitch and saves them to disk
  • Restreamer serves segments from disk as well as playlist files allowing them to be streamed
  • Backfiller queries restreamers of other servers in order to pick up segments this server doesn't have already, ie. it replicates missing segments.
  • Cutter interacts with a database to perform cutting jobs
  • Sheet Sync syncs specifc database columns to a google doc which is the primary operator interface.

Usage

All components are built as docker images. Components which access the disk expect a shared directory mounted at /mnt.

A docker-compose file is provided to run all components. See docker-compose.jsonnet to set configuration options, then generate the compose file with ./generate-docker-compose. Then run docker-compose up.