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3rd December 2018, 23:59 | #1 | Link |
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Join Date: Aug 2018
Posts: 5
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Comparing Two Frames
I'm trying to compare two pictures from compressed videos with avc,hevc,vp9,av1
how I can make sure all picture is keyframe? because I can't, maybe one b frame and the other I frame right? Is this something to do with references frames, open GOP, Max intra period in frames, Minimum GOP size, scene cut, golden frame, Periodic Intra Refresh? |
4th December 2018, 10:58 | #2 | Link | |
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Join Date: May 2006
Posts: 3,997
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Quote:
And keep in mind that a comparison based on some single frames does not tell too much about the perceived real-time playback experience. It can even be misleading. For frame-by-frame comparison I would suggest to interleave the clips and step through the interleaved frames on the PC. I am however not sure at the moment whether avisynth interleaving supports different formats and color spaces .….... you will probably have to convert the clips to the same colorspace and same resolution for interleaving. Last edited by Sharc; 4th December 2018 at 11:44. |
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