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| author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-06-30 08:36:41 +0200 |
|---|---|---|
| committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-06-30 08:36:41 +0200 |
| commit | 67b120d73c39723dddb37e806d7468f243830f88 (patch) | |
| tree | 0d3063cb981ce2164b4d467c0384c6985064920b /src/AVTInput.cpp | |
| parent | ed78541c817bfa1cce8adb5bcb48687b4de95dd0 (diff) | |
| download | ODR-SourceCompanion-67b120d73c39723dddb37e806d7468f243830f88.tar.gz ODR-SourceCompanion-67b120d73c39723dddb37e806d7468f243830f88.tar.bz2 ODR-SourceCompanion-67b120d73c39723dddb37e806d7468f243830f88.zip | |
Fix RTP sequence number overflow check
Diffstat (limited to 'src/AVTInput.cpp')
| -rw-r--r-- | src/AVTInput.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/AVTInput.cpp b/src/AVTInput.cpp index 32f6518..0d6f229 100644 --- a/src/AVTInput.cpp +++ b/src/AVTInput.cpp @@ -218,7 +218,11 @@ const uint8_t* AVTInput::_findDABFrameFromUDP(const uint8_t* buf, size_t size, if (version == 2 && payloadType == 34) { const uint16_t seqnr = (buf[index+2] << 8) | buf[index+3]; if ((_previousRtpIndex != -1) and - (((_previousRtpIndex + 1) % 0xFFFF) != seqnr)) { + (((_previousRtpIndex + 1) % 5000) != seqnr)) { + /* the sequence number apparently overflows at 5000, even though + * RFC 3550 (RTP protocol) suggests that it should overflow at 0xFFFF. + * Maybe the AVT uses DLFC as RTP sequence number. + */ fprintf(stderr, "RTP sequence number jump from %d to %d\n", _previousRtpIndex, seqnr); } |