<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - VCE dual instance encoding inconsistent since st/va: enable dual instances encode by sync surface" href="https://bugs.freedesktop.org/show_bug.cgi?id=98005#c33">Comment # 33</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - VCE dual instance encoding inconsistent since st/va: enable dual instances encode by sync surface" href="https://bugs.freedesktop.org/show_bug.cgi?id=98005">bug 98005</a> from <a class="email" href="mailto:adf.lists@gmail.com" title="Andy Furniss <adf.lists@gmail.com>"> Andy Furniss</a> <pre>(In reply to Boyuan Zhang from <a href="show_bug.cgi?id=98005#c32">comment #32</a>) > Hi Andy, > > To summarise your test results, basically you saw the following 3 issues > with CQP, is it correct? > > - Issue #1. For large clip, sometime you can "invalid GstVaapiCodedBuffer > size (0 bytes)" error. Turns out I don't need a large clip. Just running the transcode test above but with vaapih264enc rate-control=cqp init-qp=30 may give this error. > - Issue #2. Random corruption observed when using CQP. Corruption issue is > gone after disable the statement Issue 1 and 2 are gone with that disabled. > "if (context->desc.h264enc.rate_ctrl.rate_ctrl_method > !=PIPE_H264_ENC_RATE_CONTROL_METHOD_DISABLE" > - Issue #3. Encoding speed is twice faster when setting QP<=28 This one was my fault because I forgot to put a ! queue ! in my command and is nothing to do with the patches/not a real issue. > So far I'm lucky enough that my test haven't trigger any of the issue yet. I > will spend more time to try from my side. Again, if you could share the > commands you were using to trigger the above 3 issue, that would be very > appreciated. > > In the meantime, I would like to push the 2 patches to upstream first. > Because this two patches don't change the behaviour of CQP, but only fixing > VBR/CBR. Therefore, I believe CQP fix should be apart from these 2 patches. CQP works perfectly with vanilla mesa, it is broken by patch 1.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>