[FFmpeg-trac] #8328(undetermined:new): QSV gives much worse PSNR/SSIM for HEVC transcode than VA-API or MediaSDK
FFmpeg
trac at avcodec.org
Thu Oct 24 15:32:16 EEST 2019
#8328: QSV gives much worse PSNR/SSIM for HEVC transcode than VA-API or MediaSDK
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Reporter: eero-t | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by eero-t):
Upload size limit forced me to clip the attached video to first 7 frames.
Shorter video reduces the quality gap between QSV & VA-API from 25 vs 40+
PSNR to 28 vs 31 PSNR.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8328#comment:5>
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