tv VS srs

Hey HN! I built COSSgpt using videos from the Open Source Founder Podcast [1] and livestreams from COSS Office Hours [2][3]

I transcribed the VODs using Whisper and vectorized fixed-size segments from the transcripts with MPNet on Replicate GPUs. I made these segments overlap a little to prevent semantic meaning being lost inbetween segments

Then I indexed the vectors using HNSWLib in-memory vectorstore [4] and persisted the entire vectorstore into Tigris object storage [5] to cache multimedia and vectors across all Fly.io regions

I built the app in Elixir, almost entirely server-side rendered with minimal diffs sent to the client over WebSockets using Phoenix LiveView. I also used Livebook [6] a ton when I was building the multimedia processing & ML pipeline. I'm super bullish on Elixir for building webapps and/or MLops!

Let me know what you think :) If you're curious you can find the code at https://github.com/algora-io/tv

[1]: https://algora.io/podcast

With OBS supporting HEVC/H.265 (and AV1, VP9) as output codec in a recent beta, I've been testing VRChat support. Keeping eye on https://github.com/ossrs/srs/pull/3495 before I try HEVC livestreams into VRChat as I believe I can try RTSP and mpeg-ts.

For in-house hosting, a project like https://github.com/ossrs/srs or https://github.com/illuspas/Node-Media-Server may meet your needs. Ultimately though, you should be able to build whatever you need from scratch using an Nginx server with the RTMP module and an ffmpeg process

I don't know the answer to the WebRTC part, but as long as you have a server with not-outrageously-priced outbound bandwidth, you can install an open source RTMP server like SRS[1], and stream to that RTMP server from OBS. It's really easy, configure the RTMP server & stream key, then "Start Streaming" which is right next to "Start Recording". You can then hand your friends a link, and they can play it in any media player with RTMP/HLS/FLV stream support, or you can add a simple web UI with e.g. hls.js[2] (very easy to write, there might even be prepackaged solutions) so that they truly don't need to download anything.

[1] https://github.com/ossrs/srs

[2] https://github.com/video-dev/hls.js/

not flask related but SRS is my go to when i think about media/video streaming

from the configure file, it looks like there should be a make destroy command which basically just removes everything in /objs: https://github.com/ossrs/srs/blob/4.0release/trunk/configure

SRS