HRD compliant CBR stream

[jacksonvm]

Hi Team,

I have been using FFMPEG to encode videos for broadcast scenarios and I have been trying to lock HW based decoders, at times it tend to unlock due to buffer overflow or under flows. I’m trying achieve HRD compliant 100% CBR streams using FFMPEG and quicksync, the FFMPEG shows rate control mode as CBR but when we check the stream on an analyser we see variation in video bitrate and also a lot of null packets are added to maintain output muxrate.

Intel-Media-SDK/MediaSDK#804
My issue is similar to this, if some one can point me in the right direction it will be helpful.

Thanks,

Jackson