[FFmpeg-trac] #7839(avcodec:new): QVBR breaks mpeg2_qsv

FFmpeg trac at avcodec.org
Mon Apr 22 14:27:39 EEST 2019


#7839: QVBR breaks mpeg2_qsv
-------------------------------------+-------------------------------------
             Reporter:  atorp        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  qsv          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by lizhong1008):

 * cc: zhong.li@… (added)


Comment:

 Can't reproduce it on my side (Linux), and I don't think the regression is
 caused by QVBR since your log show that your are working on AVBR mode
 instead of QVBR.

 Probably it is that your MSDK version can't support coding option 3.
 1. Could you please tell me what is your MSDK API version and library
 version.
 2. Apply the patch:
 -#define QSV_HAVE_CO3 QSV_VERSION_ATLEAST(1, 11)
 +#define QSV_HAVE_CO3 0
 Don't change anything else.
 3. If it is possible, update your MSDK version can try again.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7839#comment:8>
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