What is this?

This is a way to learn Rust lol

But also, I want a good way to get youtube subscriptions in my podcast player as audio

A plan

• Hook into youtube-dlp
• Stream output to some kind of server that will provide a url
• make an rss feed of those urls
• point podcast app to this rss feed

Performance

Deciding whether to store the file in memory, or write to disk and do processing

# hyperfine --prepare 'rm ixrLPGyekCI.m4a' 'curl localhost:3000/download/ixrLPGyekCI'
Benchmark 1: curl localhost:3000/download/ixrLPGyekCI
  Time (mean ± σ):      4.081 s ±  0.179 s    [User: 0.010 s, System: 0.013 s]
  Range (min … max):    3.816 s …  4.355 s    10 runs

# hyperfine 'curl localhost:3000/ixrLPGyekCI'
Benchmark 1: curl localhost:3000/ixrLPGyekCI
  Time (mean ± σ):      2.986 s ±  0.130 s    [User: 0.004 s, System: 0.004 s]
  Range (min … max):    2.753 s …  3.118 s    10 runs

So this is the tradeoff: if you return from stdout, you are one second faster, but don't get the chapters.

I think this performance could eventually be offset with a type of cache.

Todo

• Make the yt-rss part a separate crate
• Solve the performance problems with getting episode duration [HARD]
• Think about using arrays versus vecs for the episode lists
• Change the way you access items from serde_json to use .get()
• [ ]

Implementing new episodes

1. Grab the new rss feed.
2. Grab a new RssFeed item from the file on disk.
3. Use .truncate() on the new episodes to eliminate the duplicates
   • Can also use .retain() here
   • .dedup_by_key(F) link