Posts: 74
Threads: 12
Joined: Jun 2023
Hi and thanks for this great software
My issue is regarding compression I don't understand the settings that much.
1st pass 2nd pass constant bitrate
I want to reencode my vhs captured files from lagarith or huffyuv to x264 ar the highest bitrate possible without worrying about the file size. I tried and tried and all my encoded files have blocks.
De interlacing
Do you have to select override input source for it to de-interlace?
Because I'm capturing lossless it is flagging my files wrongly as progressive. Is lossless lagarith and huffyuv TFF or BFF? What if I choose blend fields in avisynth tab will that be 👍 or bad?
Thanks again for your efforts please help me sir.
Posts: 10.617
Threads: 57
Joined: May 2017
About deinterlacing:
If your source is not properly flagged, you should override the flag.
See
[INFO] Interlacing pattern to figure out whether your source is TFF or BFF.
You might want to read up on what interlacing is and what the different deinterlacing methods do.
About encoding:
If you want to use x264, do NOT use constant bit rate.
If you want lossless encoding, use x264 with lossless settings (but your file will not really be much smaller than smaller).
I bit rate is not your concern, use 'constant rate factor (1-pass)' and use a low 'Quantization factor', anything below 16 is visually lossless to most folks.
Quote: What if I choose blend fields in avisynth tab
In my option, blending frames is the worst way to deinterlace.
Better stick with QTGMC and tweak the settings to your liking.
(Also, I would recommend using Vapoursynth over Avisynth, but if you want Avisynth that's fine too.)
Cu Selur
----
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Posts: 74
Threads: 12
Joined: Jun 2023
Selur Wrote:About deinterlacing:
If your source is not properly flagged, you should override the flag.
See [INFO] Interlacing pattern to figure out whether your source is TFF or BFF.
You might want to read up on what interlacing is and what the different deinterlacing methods do.
Thanks I will check the settings again
I think I know what interlacing is its 2 fields of a single frame captured a few seconds apart from each other. if captured lossless what would the field order be? I don't want to download mediainfo to check it has open candy on it.
This is the issue with lossless capture it does not flag the field order correctly, early I was using yadiff filter in virtualdub thanks to this software I can use vapoursynth with a GUI I wouldn't know how to script I wouldn't wasted time on it
Selur Wrote:About encoding:
If you want to use x264, do NOT use constant bit rate.
If you want lossless encoding, use x264 with lossless settings (but your file will not really be much smaller than smaller).
I bit rate is not your concern, use 'constant rate factor (1-pass)' and use a low 'Quantization factor', anything below 16 is visually lossless to most folks.
Quote:I will override but would option should I override to? I guess I would first need to know what field order my sorce is?
The encoded settings are confusing it has 2 pass with fast first pass ✅ I've also tried adjusting the bitrate in the bitrate box to 50,000. The file sizes are small they should be big if the quality is going to be high. Does Hybrid compress by default? Can it be stopped from compression or can it be turned on or off?
Quote:Quote:Selur Wrote:In my option, blending frames is the worst way to deinterlace.
Better stick with QTGMC and tweak the settings to your liking.
(Also, I would recommend using Vapoursynth over Avisynth, but if you want Avisynth that's fine too.)
Quote:What is the best interlace option in Avisynth? Upper field or lower field. Avoid field blending?
Thanks for the help.
Posts: 10.617
Threads: 57
Joined: May 2017
Ideally, lossless content should be flagged like the input.
If the format or tool to capture lossless does not support flagging, you need to overwrite it.
Simply overwrite to TFF, which using QTGMC with Bob activated, and scroll through the content if the movement is fluent TFF is correct, if the content jumps back and forth, TFF is wrong, and you need to use BFF. Read the link I posted for other cases of patterns that could happen.
Cu Selur
----
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Posts: 74
Threads: 12
Joined: Jun 2023
(29.06.2023, 19:46)Selur Wrote: Ideally, lossless content should be flagged like the input.
If the format or tool to capture lossless does not support flagging, you need to overwrite it.
Simply overwrite to TFF, which using QTGMC with Bob activated, and scroll through the content if the movement is fluent TFF is correct, if the content jumps back and forth, TFF is wrong, and you need to use BFF. Read the link I posted for other cases of patterns that could happen.
Cu Selur
Ok will do this over the weekend.
