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Old 1st March 2023, 08:00   #1  |  Link
PatchWorKs
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[HELP] Configure FFMPEG for best quality captures

Hi everyone, we do need your kindly expertise to squeeze out the best possible quality from FFMPEG's capture function.

Our digitization rig is currently composed of i7-4790S/16Gb/Win11 + Blackmagic Intensity Pro + customized/modded Panasonic NV-HD630 (note that - unfortunally - it won't work under Linux V4L2's qv4l2 tool)

At the moment we have "cobbled together" this - ffplay - command line:
Code:
ffplay -rtbufsize 1G -pixel_format uyvy422 -framerate 25 -f dshow -i video="Decklink Video Capture":audio="Decklink Audio Capture" -aspect 4:3 -vf "scale=in_range=full:out_range=full,lut='y=(va l-16)*1.067',bwdif=mode=send_field:parity=auto:deint=all"
Result:


Thanks in advance to anyone that will help to optimize it.
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Old 4th March 2023, 14:41   #2  |  Link
Emulgator
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A sample uploaded to wetransfer.com maybe ?
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Old 15th March 2023, 12:58   #3  |  Link
PatchWorKs
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Sorry for the delay, but we received an SVHS VCR so we're testing it for captures.

Meantime here's the chatGPT-generated commandline:
Code:
ffmpeg -f dshow -i video="Your Capture Card Name" -f dshow -i audio="Your Audio Device Name" -c:v huffyuv -c:a pcm_s16le -pix_fmt yuv420p -preset ultrafast -bufsize 2G -filter:v bwdif=mode=send_field -q:v 0 -f matroska output.mkv
The funny chat:

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Hybrid Multimedia Production Suite will be a platform-indipendent open source suite for advanced audio/video contents production.

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Last edited by PatchWorKs; 15th March 2023 at 13:03.
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analog, blackmagic, capture, ffmpeg, vhs

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