Add tests/CI/linter

add ffmpeg test utility
add run test locally
add run linter on docker

Adding audio (WIP)

Date: 2/4/24

Summary: Adding audio track

add support to detect server side streams information
add support to intercept stream as it goes (middleware: useful for gathering data such as media info, bitrate, eia608, etc)
TODO: test push directly vp8 and ogg through rtc (is it possible through SRT?)
TODO: test push directly h264 and aac through
TODO: test transcode server side stream (h264 and aac) to client side stream support (vp8/vp9/ogg) through libav/ffmpeg.

refs:

binding go https://github.com/asticode/go-astiav
transcoding https://github.com/asticode/go-astiav/blob/master/examples/transcoding/main.go
using buffer streaming https://github.com/bubbajoe/go-astiav-contr/blob/misc-update/examples/gocv/main.go#L167
(working) go webrtc same stream https://github.com/pion/webrtc/blob/v3.2.24/examples/play-from-disk/main.go#L88C39-L88C64
(working) https://jsfiddle.net/8kup9mvn/
webrtc discussion https://github.com/pion/webrtc/discussions/1955
go webrtc example https://github.com/pion/webrtc/blob/master/examples/play-from-disk-renegotiation/main.go
webrtc discussion https://stackoverflow.com/questions/66243915/how-to-get-multiple-streams-from-webrtc-peerconnection
golang libav https://github.com/giorgisio/goav/blob/master/example/tutorial01.go#L69
libav transcoding example gshttps://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/transcode.c#L158
libav network example https://github.com/FFmpeg/FFmpgseg/blob/master/doc/examples/avio_http_serve_files.c#L116
libav avio example https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/avio_read_callback.c#L95
example https://blog.mi.hdm-stuttgart.de/index.php/2018/03/21/livestreaming-with-libav-tutorial-part-2/
libav doc https://ffmpeg.org/doxygen/trunk/index.html
generic av format https://github.com/rvs/ffmpeg/blob/master/libavformat/output-example.c
mpegts example https://github.com/wakabayashik/mpegts-to-webrtc/blob/main/main.go
network use https://github.com/asticode/go-astiav/issues/7
srt live https://github.com/Haivision/srt/blob/master/docs/features/live-streaming.md

Moving player to static

Date: 2/3/24

Hypothesis: It's easy to do experimentation with local player

Summary

Copy and adapt code from https://github.com/flavioribeiro/donut-video into static/demo/

Investigating a potential memory leak

Date: 2/2/24

Hypothesis: There's a memory leak happening

Signs: pprof/allocs

Summary

Start the donut make run,
Check the general profiling http://localhost:6060/debug/pprof/?debug=1
Keep refreshing the page, notice that the counters: heap, goroutine, threadcreate are stable
Access the the demo http://localhost:8080/
Go back to the profiling page http://localhost:6060/debug/pprof/?debug=1
Notice that the prof counters are stable, regardless if you refresh multiple times
Now click on [Connect]
Observe how the perf counters go up http://localhost:6060/debug/pprof/?debug=1
Keep refreshing the http://localhost:6060/debug/pprof/? and you'll see that the counters goroutine and threacreate are stable but heap and allocs counters are growing.
- You can check the specific heap page as well http://localhost:6060/debug/pprof/heap?debug=1
- You can run the command go tool pprof http://localhost:6060/debug/pprof/heap and type web, it'll generate a svg tree map of heap.
  - Snapshot 1 at time Start + 4 m
  - Snapshot 2 at time Start + 15 m
  - Snapshot 2 at time Start + 8 h
  - Docker stats docker stats at Start
  - Docker stats docker stats at Start + 10m