[FFmpeg-user] The lower part of h264-qsv encoded image is smeared

[Xiang, Haihao]

> My computer is Intel 12 Gen CPU (i7-12650), Windows 11 system, and I use h264-
> qsv encoder.
> Because I take pictures while the car is driving, I set all I frames instead
> of B frames and P frames, and set the quality parameter to 20. The specific
> settings are as follows:
> 
> 
> video_codec_context->gop_size = 1
> video_codec_context->max_b_frames = 0
> 
> 
> video_codec_context->qmin = 20
> video_codec_context->qmax = 20
>  But after running, the lower part of the encoded image disappears. Is there
> something wrong with the setting? Thanks a lot.
> 

What's your FFmpeg version? Are you able to reproduce your issue with FFmpeg CLI
? BTW I can't reproduce your issue on both Windows and Linux with FFmpeg CLI

BRs
Haihao