print warning in case no key frames are being received

[aler9]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1763 (74a0a10) into main (22fe655) will increase coverage by 0.12%.
The diff coverage is 58.79%.

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@@            Coverage Diff             @@
##             main    #1763      +/-   ##
==========================================
+ Coverage   62.98%   63.11%   +0.12%     
==========================================
  Files          91       91              
  Lines       10072    10087      +15     
==========================================
+ Hits         6344     6366      +22     
+ Misses       3276     3270       -6     
+ Partials      452      451       -1     

Impacted Files	Coverage Δ
internal/conf/logdestination.go	0.00% <0.00%> (ø)
internal/core/pprof.go	0.00% <0.00%> (ø)
internal/core/rpicamera_source.go	0.00% <0.00%> (ø)
internal/core/source.go	100.00% <ø> (ø)
internal/core/source_redirect.go	0.00% <0.00%> (ø)
internal/core/udp_source.go	0.00% <0.00%> (ø)
internal/formatprocessor/generic.go	56.00% <ø> (ø)
internal/formatprocessor/mpeg2audio.go	0.00% <0.00%> (ø)
internal/formatprocessor/mpeg4audio.go	0.00% <0.00%> (ø)
internal/formatprocessor/opus.go	0.00% <0.00%> (ø)
... and 27 more

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[alpe12]

@aler9

My WEBRTC streams always freezes every few minutes.
With the latest update I'm getting these errors.
WAR [path cam] no H264 key frames received in %!v(MISSING), stream can't be decoded
My camera records with large keyframes interval when there is little motion, to save disk space.
Could this be causing issues with WEBRTC in meadiamtx? Via RTSP on mediamtx it mostly works. It freezes only (or way more) on WEBRTC.
What to do to fix WEBRTC then?
If this doesn't explain WEBRTC freezing (and not RTSP) can you add an option to disable these warning or to configure the allowed keyframe interval?

I really don't understand why only WEBRTC freezes.
Thanks.