#9481: VA-API + QSV H264 => MPEG2 transcode PSNR dropped by 25%
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Reporter: eero-t | Owner: (none)
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 wenbin,chen):
I found the problem is not about VA-API. Between two commits, the encoded
stream is identical. It is PSNR calculation command that returns different
results. If I run PSNR calculation command on the same output video on two
commits, I get different result.
The decoded yuv data of build-in 264 decoder on two commit have same md5
value, so seems it is an issue of PSNR filter.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9481#comment:2>
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