Feat rtp processor #3063

[arjunshajitech]

This is part 2/2 of a cross-repository series.

Part 1 : pion/interceptor#317

Note

Before merging, make sure to remove:

replace github.com/pion/interceptor v0.1.37 => github.com/arjunshajitech/interceptor v0.0.0-20250312123050-c9d476a510a1

Description

Use RTPProcessor with RTPReader
RTPReader simply reads packets from the buffer, while the processor retains them through the interceptors.

Reference issue

Fixes #3063

[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.50%. Comparing base (09e2ad5) to head (f6364b6).
⚠️ Report is 252 commits behind head on master.

Files with missing lines	Patch %	Lines
dtlstransport.go	81.25%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3064      +/-   ##
==========================================
- Coverage   78.67%   78.50%   -0.17%     
==========================================
  Files          91       91              
  Lines       11313    11334      +21     
==========================================
- Hits         8900     8898       -2     
- Misses       1928     1945      +17     
- Partials      485      491       +6     

Flag	Coverage Δ
go	80.39% <93.75%> (-0.19%)	⬇️
wasm	63.72% <ø> (ø)

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