Question about bframe support

[Lynnworld]

Hello, I reviewed OME’s B‑frame implementation and the B‑frame patch at https://github.com/AirenSoft-WebRTC-build/webrtc-build. It appears that RTP packets are sent in PTS order, which requires frame
reordering on both the encoder and the decoder. Why send in PTS order instead of DTS order?

[getroot]

I implemented it by referencing this RFC:
https://www.ietf.org/archive/id/draft-deping-avtcore-video-bframe-01.html

They define it as follows:

The video RTP receiver here is a client that decodes video. It should extract the CTS value when this extension exists and calculate the DTS value with the RTP timestamp (PTS) and CTS.

[Lynnworld]

I analyzed Douyin Live’s RTC implementation. Its send order follows DTS, and the RTP timestamp is PTS, so it will be discontinuous.