Opened 6 years ago
Closed 6 years ago
#7431 closed enhancement (wontfix)
[ffmpeg-qsv][avc encode] option "'userawref" is not support
Reported by: | a | Owned by: | |
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Priority: | wish | Component: | undetermined |
Version: | unspecified | Keywords: | qsv |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
environment
CFL OS: ubuntu 17.04 kernel: 4.15.0 KBL OS: ubuntu 16.04 kernel: 4.14.0-rc1 SKL OS: ubuntu 16.04 kernel: 4.15.0 libva b6c50dad4d7d14c507108d9f468662e2d7ae1c4d https://github.com/01org/libva.git ( master ) iHD Driver ed04556a6676fd77ff845508bc54bfc60915450c https://github.com/intel/media-driver libva-utils 9a10ad663349732decd668a426cfc349b0010d1d https://github.com/01org/libva-utils.git Mediasdk 7ea683585f0f84f1bea035a405855312c92c46c0 https://github.com/Intel-Media-SDK/MediaSDK FFMPEG 56f68a099cc607658118e00cad30569103ae3751 https://git.ffmpeg.org/ffmpeg.git
How to reproduce:
1.build env as above lists 2.ffmpeg -hwaccel qsv -init_hw_device qsv=hw -filter_hw_device hw -v verbose -f rawvideo -video_size 720x480 -pix_fmt nv12 -i ./Test_720x480p.yuv -an -vf hwupload=extra_hw_frames=64,format=qsv -c:v h264_qsv -framerate 30 -userawref 1 -y ./H264e_userawref_480P.h264 3.error message: Unrecognized option 'userawref'
Change History (3)
comment:1 by , 6 years ago
Keywords: | userawref removed |
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Priority: | normal → wish |
Type: | defect → enhancement |
comment:2 by , 6 years ago
comment:3 by , 6 years ago
Resolution: | → wontfix |
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Status: | new → closed |
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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 reference.
But what is the benefit? It will cause decoder behavior doesn't match encoder, then produce bad decoded video quality.