Segmentation fault when encoding a 2048x8192 video with zerolatency tunning

[Caoyang Jiang]

Hi,

I am trying to encode a 2048x8192 yuv420 video sequence with following command,

x265 --tune zerolatency --qp 24 --input-res 2048x8192 --fps 60

The latest x265 crashed with segmentation fault after encoding 3 frames. I then removed "--tune zerolatency" and there is no seg fault. I also tried --input-res 8192x2048 with zerolatency and x265 works just fine. Any help on this issue is appreciated.

Thanks,

Caoyang

[Pradeep Ramachandran]

I am assuming that you're doing this on the latest tip of the default branch. I tried with some HD and UHD clips and it seems to work fine.

Can you please share the source clip so that we can reproduce this failure?

[Caoyang Jiang]

Thanks for your reply, Pradeep. I did more experiment and the segmentation fault depends on the video content and resolution. Unfortunately I can't share the source clip that creates the segment fault due to legal agreement. I will try to see if I can found any publicly available video source that could produce same error.