https://bugs.freedesktop.org/show_bug.cgi?id=98005
--- Comment #29 from Andy Furniss adf.lists@gmail.com --- Maybe not yet - Been testing cbr and vbr and these seem OK still.
There is an issue with cqp that I'll have to test further - it could be related to the source size, I am not sure yet.
With 2160p gstreamer is Ok with its default QP of 26 or 28, but any higher it bails with -
0:00:00.252952155 6716 0x7f8898002d90 ERROR vaapiencode gstvaapiencode.c:210:gst_vaapiencode_default_alloc_buffer: invalid GstVaapiCodedBuffer size (0 bytes) 0:00:00.253007252 6716 0x7f8898002d90 ERROR vaapiencode gstvaapiencode.c:316:gst_vaapiencode_push_frame: failed to allocate encoded buffer in system memory
It may be that there are other ways to hit this before the patches - I'll try more tomorrow.