[FFmpeg-trac] #7431(undetermined:new): [ffmpeg-qsv][avc encode] option "'userawref" is not support

FFmpeg trac at avcodec.org
Tue Sep 11 11:54:13 EEST 2018

#7431: [ffmpeg-qsv][avc encode] option "'userawref" is not support
             Reporter:               |                    Owner:
  zhuqingliang                       |                   Status:  new
                 Type:  enhancement  |                Component:
             Priority:  wish         |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  qsv          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by lizhong1008):

 Please comment why you need such an option. Not everything of MSDK should
 be exposed in ffmpeg.
 I guess the option "userawref" here you mean is to use original input yuv
 frame as reference during encoding, instead of using reconstruct frame as
 But what is the benefit? It will cause decoder behavior doesn't match
 encoder, then produce bad decoded video quality.

Ticket URL: <https://trac.ffmpeg.org/ticket/7431#comment:2>
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