[FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf
Paul B Mahol
onemda at gmail.com
Fri Jul 10 16:22:43 CEST 2015
On 7/10/15, Kieran O'Leary <kieran.oleary at irishfilm.ie> wrote:
>> framemd5 won't help you determine 'how much' visual difference there is
>> between an exported file and a reference file. Depending on how you run
>> it, framemd5 would only confirm if the two files decode to the same raw
>> frame or different ones, it's a yes/no answer and not a 'how much'. I
>> suggest sending both streams as input to the psnr or ssim filters which
>> are better able to quantify visual difference.
>>Also ffmpeg is not detecting the pixel format of your mxf file, you may
>> have to declare the pixel format before the input.
> Dave Rice
> Hi Dave,
> Thanks for that. I will set the pixel format later and see if that gets it
> Re the framemd5, I should have been more clear. I wanted to use the
> framemd5s to prove that the video stream was altered when transcoding from
> 1:1 10bit to v210. I realise that it would just give a yes or no answer to
> this question. I honestly didn't have a clue how to compare them after that
> and see how much alteration occurs. Thanks yet again for your invaluable
AVup is just packed uyvy422.
But something is not correct as there is greenish thing on top, also the
dimensions doesnt seems to be correct.
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