Media (Intel® oneAPI Video Processing Library, Intel Media SDK)
Access community support with transcoding, decoding, and encoding in applications using media tools from Intel. This includes Intel® oneAPI Video Processing Library and Intel® Media SDK.
2964 Discussions

SW(MFX_RATECONTROL_CBR) bit rate controller doesn't work as intended after 8-16 hours of continuous encoding

JONAS_O_
Beginner
209 Views

When following the steps as laid out in the HEVC Interlaced whitepaper(included in the 2018R1 release) to use the CBR SW bit rate controller(MFX_RATECONTROL_CBR), initially everything seems to work fine.

However, after somewhere between 8-16 hours of continuous real-time encoding it seems that the bitrate controller goes crazy and the encoded video drops. In our case we started encoding a 1080i stream in about 6 Mbps but after the 8 hours it looks rather like the encoding is done at a very, very low bitrate i.e. it's completely unwatchable. The resulting elementary stream does however keep the correct overall bit rate but the encoding looks looks bad. 

We have tested using the same rate controller on pure progressive material and are getting the exact same result.

Has anyone seen this behvaiour?

 

0 Kudos
1 Reply
Mark_L_Intel1
Moderator
209 Views

Hi JONAS,

I would first check it with memory when the crash happened.

It would be better if we can reproduce it, could you tell me the system configurations?

Mark

Reply