rtmp: support reading AV1, VP9, H265, Opus, AC-3, G711, LPCM and multiple tracks at once (#4168) (#4321)

[aler9]

Replaces #4168
Fixes #4321

TODO:

• Opus
• AV1
• H265
• VP9
• AC-3
• G711
• LPCM
• multitracks
• multitracks test

[codecov]

Codecov Report

❌ Patch coverage is 73.98740% with 289 lines in your changes missing coverage. Please review.
✅ Project coverage is 56.60%. Comparing base (e0f4748) to head (8f94599).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/protocols/rtmp/writer.go	72.67%	159 Missing and 29 partials ⚠️
internal/protocols/rtmp/from_stream.go	71.71%	65 Missing and 19 partials ⚠️
internal/protocols/rtmp/server_conn.go	64.28%	8 Missing and 2 partials ⚠️
internal/formatprocessor/av1.go	84.61%	3 Missing and 1 partial ⚠️
internal/recorder/format_fmp4.go	0.00%	2 Missing ⚠️
internal/protocols/mpegts/from_stream.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4954      +/-   ##
==========================================
+ Coverage   55.29%   56.60%   +1.30%     
==========================================
  Files         216      215       -1     
  Lines       22790    23574     +784     
==========================================
+ Hits        12601    13343     +742     
+ Misses       9251     9248       -3     
- Partials      938      983      +45     

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[github-actions]

This issue is mentioned in release v1.15.0 🚀
Check out the entire changelog by clicking here