[FFmpeg-trac] #7330(avcodec:new): ffmpeg 4.0 fails to transcoding one 4k clip

FFmpeg trac at avcodec.org
Mon Oct 29 12:30:22 EET 2018

#7330: ffmpeg 4.0 fails to transcoding one 4k clip
             Reporter:  applemax82  |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  qsv         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |

Comment (by lizhong1008):

 This clip is H264 6.0 level. However, The maximum level supported by MSDK
 is 5.2.
 There are some limitation on Intel HW platform (e.g: Skylake) to support
 level 6.0+: Resolution larger than 4K is not supported, and there are some
 other limitation such MV range(such is MB level limitation which is are
 hard to check in MSDK and vaapi driver).
 I wonder to know the possibility to exposing level 6.0+ in MSDK (at least
 in API level, just like VAAPI is doing. Relative discussion:
 https://github.com/intel/intel-vaapi-driver/issues/307). But anyway, I
 believe this is not a ffmpeg issue and should be closed here.

Ticket URL: <https://trac.ffmpeg.org/ticket/7330#comment:7>
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