血压低有什么症状表现
Tagged with quality video-quality
5 questions
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Trying to restore VHS-sourced PAL DVD with VapourSynth – very minimal improvement over HandBrake
I’m attempting to restore a rare Italian aviation film (Forza G, aka Winged Devils, 1972). The only copy I could get came from a PAL VHS recording of an OTA RAI broadcast, later transferred to DVD. ...
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How is PSNR calculated when the reference file is RGB and the encoded file is YUV?
If I use this command to get PSNR statistics for a file:
ffmpeg -i encoded.mp4 -i reference.nut -lavfi "[0:v]setpts=N[out0];[1:v]setpts=N[out1];[out0][out1]psnr=stats_file=psnr_logfile.txt" -...
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How can people apparently manage to capture video in such poor quality in 2022? [closed]
This is something which has baffled me for many years already. I just watched this freshly uploaded video (out of many):
It seriously looks like somebody took a ...
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Why do they deliberately (?) crush the quality for any video sent in by "normal people"?
Whenever they (TV stations, YouTube channels, etc.) show footage shot by "normal people", even current such, it always looks like they used a cheap consumer video camera from 1981 with a worn-out VHS ...
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How do I prevent Quality loss in the beginning of a video?
My company transcodes videos sent in by users (recorder by our own screenrecording software)
I use FFMpeg to do the work using this command:
/ffmpeg/ffmpeg -i in.mov -vcodec libx264 -fpre /ffmpeg/...
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