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 23rd July 2018, 19:14 #1  |  Link bradwiggo Registered User   Join Date: Jun 2018 Posts: 50 I need some help with interpolation videos, lots of detail in post I have been trying to get some interpolation right for a few weeks now, and I need some help with it. I have tried a lot of things, all of which I will go into detail about in this post. I started trying to interpolate videos as I read that a lot of TVs did this and wondered if there was a way I can do it on my computer. I went on youtube and searched for interpolation and found loads of videos of varying quality. After a while I started to look more specifically at interpolations of animation, as I am a fan of animated movies. I found numerous examples of interpolations of animation, this probably being the best I found: https://www.youtube.com/watch?v=sPAP...A&index=4&t=0s I also focused on this one as in the comments of the video the person who uploaded it said it was done with SVP, so that gave me a hint as to where to start. I tried this tutorial: http://www.spirton.com/convert-videos-to-60fps/ and wasn't impressed by the results. The camera looked smooth, but motion on screen still looked like it was running at 30fps. I then made a post about this: https://forum.videohelp.com/threads/...e3#post2524201 and I got a lot of useful advice, which allowed me to produce a much better interpolation, the best example of which is probably this: https://1drv.ms/u/s!AiOx2LWATSlvzjpQLo1axA8V3dqT However, it still didn't look as good as the youtube video. There are also quite a few duplicate frames in that video. The script I was using to make that video was something like this: Code: PluginPath = "C:\Users\bradw\Downloads\MeGUI-2836-32\tools\lsmash\" LoadPlugin(PluginPath+"LSMASHSource.dll") LoadPlugin("C:\Users\bradw\Downloads\MeGUI-2836-32\tools\avisynth_plugin\svpflow1.dll") LoadPlugin("C:\Users\bradw\Downloads\MeGUI-2836-32\tools\avisynth_plugin\svpflow2.dll") LSMASHVideoSource("C:\Users\bradw\Documents\file.mkv") AssumeFPS(24000,1001) super=SVSuper("{gpu:0}") vectors=SVAnalyse(super, "{block:{w:16}}") # 16 is the default, you can try 8, 24, and 32 also SVSmoothFps(super, vectors, "{rate:{num:5, den:2, algo:2, scene:{mode:1}}}", url="www.svp-team.com", mt=1) My original source for these tests is here: https://1drv.ms/v/s!AiOx2LWATSlvzjxoZFpKvN_R2yu_ I am not very knowledgeable on the subject of interpolation, nor am I of avisynth or video encoding in general, however I do have a basic understanding of these scripts. Any advice on what I can do in order to make my interpolations look smoother would be greatly appreciated, I hope I have provided enough information and enough samples in this post, but if you need more, I will be happy to find them. Also, I use MeGUI to run these avisynth scripts. My computer specs (incase it matters): AMD 10-7300 8GB RAM 1TB HDD Radeon R6 integrated graphics. It's a Lenovo Z50-75 laptop.
 23rd July 2018, 20:04 #2  |  Link StainlessS HeartlessS Usurer     Join Date: Dec 2009 Location: Over the rainbow Posts: 8,426 See here, https://forum.doom9.org/showthread.php?t=174793 Something smaller and simpler Code: # jm_fps.avs Global G_DCT=1 function jm_fps(clip source) { fps_num = 60 fps_den = 1 prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = 16, overlap = 4, search = 3, dct = G_DCT) forward = MAnalyse(superfilt, isb = false, blksize = 16, overlap = 4, search = 3, dct = G_DCT) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out } EDIT: Manolito mod of above, from here:- https://forum.doom9.org/showthread.p...39#post1800439 Code: # Motion Protected FPS converter script by johnmeyer from Doom9 # Slightly modified interface by manolito # Requires MVTools V2 and RemoveGrain # Also needs fftw3.dll in the System32 or SysWOW64 folder for Dct values other than 0 function jm_fps(clip source, float "fps", int "BlkSize", int "Dct") { fps = default(fps, 25.000) fps_num = int(fps * 1000) fps_den = 1000 BlkSize = default(BlkSize, 16) Dct = default(Dct, 0) prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1, sharp = 1, rfilter = 4) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16, sharp = 1, rfilter = 4) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward = MAnalyse(superfilt, isb = false, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out } __________________ I sometimes post sober. StainlessS@MediaFire ::: AND/OR ::: StainlessS@SendSpace "Some infinities are bigger than other infinities", but how many of them are infinitely bigger ??? Last edited by StainlessS; 23rd July 2018 at 20:12.
23rd July 2018, 20:32   #3  |  Link
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Quote:
 Originally Posted by StainlessS See here, https://forum.doom9.org/showthread.php?t=174793 Something smaller and simpler Code: # jm_fps.avs Global G_DCT=1 function jm_fps(clip source) { fps_num = 60 fps_den = 1 prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = 16, overlap = 4, search = 3, dct = G_DCT) forward = MAnalyse(superfilt, isb = false, blksize = 16, overlap = 4, search = 3, dct = G_DCT) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out } EDIT: Manolito mod of above, from here:- https://forum.doom9.org/showthread.p...39#post1800439 Code: # Motion Protected FPS converter script by johnmeyer from Doom9 # Slightly modified interface by manolito # Requires MVTools V2 and RemoveGrain # Also needs fftw3.dll in the System32 or SysWOW64 folder for Dct values other than 0 function jm_fps(clip source, float "fps", int "BlkSize", int "Dct") { fps = default(fps, 25.000) fps_num = int(fps * 1000) fps_den = 1000 BlkSize = default(BlkSize, 16) Dct = default(Dct, 0) prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1, sharp = 1, rfilter = 4) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16, sharp = 1, rfilter = 4) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward = MAnalyse(superfilt, isb = false, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out }
Thanks, I will try those out, are they for avisynth?

Also, where do I put the path for the input video?

Last edited by bradwiggo; 23rd July 2018 at 20:38.

 23rd July 2018, 20:50 #4  |  Link lansing Registered User   Join Date: Sep 2006 Posts: 1,349 Frame interpolation is always going to be a hit or miss, when it hits, you'll get a nice looking interpolated frame, when it misses, you'll get a frame with artifacts. For example, when the original frame rate is low and there's a fast moving object and you're trying to achieve a frame rate that is more than twice of the original, more than likely it's going to be a miss. However, there should not be any difference on "smoothness" between all of the different converter filters because they all shared the same backbone. What you should be focusing on are the differences in the interpolation quality and their handling of artifact. To get less artifact, you should only do double frame rate conversion. So if your source is 24fps, you should be doing 48fps conversion instead of 60fps because interpolating 1 frame in between frames is always going to have less chance of artifact than interpolating 2 frames in between.
23rd July 2018, 20:53   #5  |  Link
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Quote:
 Originally Posted by lansing Frame interpolation is always going to be a hit or miss, when it hits, you'll get a nice looking interpolated frame, when it misses, you'll get a frame with artifacts. For example, when the original frame rate is low and there's a fast moving object and you're trying to achieve a frame rate that is more than twice of the original, more than likely it's going to be a miss. However, there should not be any difference on "smoothness" between all of the different converter filters because they all shared the same backbone. What you should be focusing on are the differences in the interpolation quality and their handling of artifact. To get less artifact, you should only do double frame rate conversion. So if your source is 24fps, you should be doing 48fps conversion instead of 60fps because interpolating 1 frame in between frames is always going to have less chance of artifact than interpolating 2 frames in between.
Why does my video look less smooth than the youtube video if the interpolation is the same?

23rd July 2018, 21:06   #6  |  Link
lansing
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Quote:
 Originally Posted by bradwiggo Why does my video look less smooth than the youtube video if the interpolation is the same?
Because you're using blend mode?

23rd July 2018, 21:11   #7  |  Link
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Quote:
 Originally Posted by lansing Because you're using blend mode?
What should I change to stop that? Is that the Scene Mode argument?

23rd July 2018, 21:19   #8  |  Link
lansing
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Quote:
 Originally Posted by bradwiggo What should I change to stop that? Is that the Scene Mode argument?
I don't know, I'm using the older 3.1.7 version. There was an option called "artifact masking", you have to disable it, turning it to "strongest" will blend the frames.

23rd July 2018, 21:23   #9  |  Link
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Quote:
 Originally Posted by lansing I don't know, I'm using the older 3.1.7 version. There was an option called "artifact masking", you have to disable it, turning it to "strongest" will blend the frames.
the 3.1.7 version of what, svpflow?

Also, do you know how to use the script that StainlessS posted, as I don't know how to set the input video.

23rd July 2018, 21:51   #10  |  Link
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Quote:
 Originally Posted by StainlessS See here, https://forum.doom9.org/showthread.php?t=174793 Something smaller and simpler Code: # jm_fps.avs Global G_DCT=1 function jm_fps(clip source) { fps_num = 60 fps_den = 1 prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = 16, overlap = 4, search = 3, dct = G_DCT) forward = MAnalyse(superfilt, isb = false, blksize = 16, overlap = 4, search = 3, dct = G_DCT) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out } EDIT: Manolito mod of above, from here:- https://forum.doom9.org/showthread.p...39#post1800439 Code: # Motion Protected FPS converter script by johnmeyer from Doom9 # Slightly modified interface by manolito # Requires MVTools V2 and RemoveGrain # Also needs fftw3.dll in the System32 or SysWOW64 folder for Dct values other than 0 function jm_fps(clip source, float "fps", int "BlkSize", int "Dct") { fps = default(fps, 25.000) fps_num = int(fps * 1000) fps_den = 1000 BlkSize = default(BlkSize, 16) Dct = default(Dct, 0) prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1, sharp = 1, rfilter = 4) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16, sharp = 1, rfilter = 4) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward = MAnalyse(superfilt, isb = false, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out }
I have tried to gte this working but I have a few questions:

1. Where do I put the path to the input video? As meGUI gives the error "the scripts return was not a video clip"

2. Is should I use that as a .avs file for MeGUI, is that the right way to use it?

 23rd July 2018, 22:00 #11  |  Link StainlessS HeartlessS Usurer     Join Date: Dec 2009 Location: Over the rainbow Posts: 8,426 # Whatever.avs Code: # Motion Protected FPS converter script by johnmeyer from Doom9 # Slightly modified interface by manolito # Requires MVTools V2 and RemoveGrain # Also needs fftw3.dll in the System32 or SysWOW64 folder for Dct values other than 0 Function jm_fps(clip source, float "fps", int "BlkSize", int "Dct") { fps = default(fps, 25.000) fps_num = int(fps * 1000) fps_den = 1000 BlkSize = default(BlkSize, 16) Dct = default(Dct, 0) prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1, sharp = 1, rfilter = 4) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16, sharp = 1, rfilter = 4) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward = MAnalyse(superfilt, isb = false, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out } DCT = 0 # EDIT: 1 is SLOW BLKSIZE = 16 c=Avisource("D:\whatever.avi") Return jm_fps(c,fps=c.FrameRate*2,blkSize=BLKSIZE,dct=DCT) 1) See above. 2) Yes. __________________ I sometimes post sober. StainlessS@MediaFire ::: AND/OR ::: StainlessS@SendSpace "Some infinities are bigger than other infinities", but how many of them are infinitely bigger ??? Last edited by StainlessS; 23rd July 2018 at 22:12.
23rd July 2018, 22:11   #12  |  Link
lansing
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Quote:
 Originally Posted by bradwiggo the 3.1.7 version of what, svpflow? Also, do you know how to use the script that StainlessS posted, as I don't know how to set the input video.
svp 3.1, it's an older version. It's svp 4 now.

This is from the svpflow sample script, and this is all the parameter description:

Code:
SetMemoryMax(1024)

SetFilterMTMode("DEFAULT_MT_MODE",2)
SetFilterMTMode("DirectShowSource",3)
SetFilterMTMode("SVSuper",1)
SetFilterMTMode("SVAnalyse",1)
SetFilterMTMode("SVSmoothFps",1)

DirectShowSource("path\to\video.avi")
ConvertToYV12()

super_params="{pel:2,gpu:1}"

analyse_params="""{block:{w:32,h:32},
main:{search:{coarse:{distance:-10}}},

smoothfps_params="{rate:{num:5,den:2},algo:2,cubic:1,light:{aspect:1.33}}"

super = SVSuper(super_params)
vectors = SVAnalyse(super, analyse_params)

Prefetch(threads)
Change "algo" to 1 or 2 for no blending.

23rd July 2018, 22:39   #13  |  Link
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Quote:
 Originally Posted by StainlessS # Whatever.avs Code: # Motion Protected FPS converter script by johnmeyer from Doom9 # Slightly modified interface by manolito # Requires MVTools V2 and RemoveGrain # Also needs fftw3.dll in the System32 or SysWOW64 folder for Dct values other than 0 Function jm_fps(clip source, float "fps", int "BlkSize", int "Dct") { fps = default(fps, 25.000) fps_num = int(fps * 1000) fps_den = 1000 BlkSize = default(BlkSize, 16) Dct = default(Dct, 0) prefiltered = RemoveGrain(source, 22) super = MSuper(source, hpad = 16, vpad = 16, levels = 1, sharp = 1, rfilter = 4) # one level is enough for MRecalculate superfilt = MSuper(prefiltered, hpad = 16, vpad = 16, sharp = 1, rfilter = 4) # all levels for MAnalyse backward = MAnalyse(superfilt, isb = true, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward = MAnalyse(superfilt, isb = false, blksize = BlkSize, overlap = 4, search = 3, dct = Dct) forward_re = MRecalculate(super, forward, blksize = 8, overlap = 2, thSAD = 100) backward_re = MRecalculate(super, backward, blksize = 8, overlap = 2, thSAD = 100) out = MFlowFps(source, super, backward_re, forward_re, num = fps_num, den = fps_den, blend = false, ml = 200, mask = 2) return out } DCT = 0 # EDIT: 1 is SLOW BLKSIZE = 16 c=Avisource("D:\whatever.avi") Return jm_fps(c,fps=c.FrameRate*2,blkSize=BLKSIZE,dct=DCT) 1) See above. 2) Yes.
It said it couldn't open the file, it might be because I was using an mp4 or mkv file, not avi, do I need a different instruction to avisource?

23rd July 2018, 22:40   #14  |  Link
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Quote:
 Originally Posted by lansing svp 3.1, it's an older version. It's svp 4 now. This is from the svpflow sample script, and this is all the parameter description: Code: SetMemoryMax(1024) LoadPlugin("svpflow1.dll") LoadPlugin("svpflow2.dll") threads=9 SetFilterMTMode("DEFAULT_MT_MODE",2) SetFilterMTMode("DirectShowSource",3) SetFilterMTMode("SVSuper",1) SetFilterMTMode("SVAnalyse",1) SetFilterMTMode("SVSmoothFps",1) DirectShowSource("path\to\video.avi") ConvertToYV12() super_params="{pel:2,gpu:1}" analyse_params="""{block:{w:32,h:32}, main:{search:{coarse:{distance:-10}}}, refine:[{thsad:200}]}""" smoothfps_params="{rate:{num:5,den:2},algo:2,cubic:1,light:{aspect:1.33}}" super = SVSuper(super_params) vectors = SVAnalyse(super, analyse_params) SVSmoothFps(super, vectors, smoothfps_params, mt=threads) Prefetch(threads) Change "algo" to 1 or 2 for no blending.

 23rd July 2018, 23:10 #15  |  Link StainlessS HeartlessS Usurer     Join Date: Dec 2009 Location: Over the rainbow Posts: 8,426 What, you aint even sure if its mp4 or mkv ? Not really sure that you should be posting in the Avisynth forum if you have not even attempted to figure out how to use Avisynth. Suggest that you look at ffmpegsource or LSMASHSource (I rarely use either and convert all except VOB/MPG to avi, doing anything else usually involves too much messing about trying to figure out the better source filter to use). I do not recommend DirectshowSource. EDIT: _CLIP_To_UT_YV12_D.cmd - Script for ffmpeg -> AVI UT_Video YV12 PCM audio to D:\ (dont like SPACE's in filenames) Code: setlocal REM Where to Find ffmpeg set FFMPEG="C:\BIN\ffmpeg.exe" REM Where to get input file, No terminating Backslash, "." = current directory set INDIR="." REM Where to place output file, No terminating Backslash. set OUTDIR="D:" FOR %%A IN (*.wmv *.mpg *.avi *.flv *.mov *.mp4 *.m4v *.RAM *.RM *.mkv *.TS *.ogv) DO ( %FFMPEG% -i "%INDIR%\%%A" -vcodec utvideo -acodec pcm_s16le "%OUTDIR%\%%~nxA.AVI" ) Pause EDIT: A bit more help Code: REM We DO NOT LIKE SPACES IN FILE NAMES (REM == REMark ie comment) setlocal REM Where to Find ffmpeg set FFMPEG="C:\BIN\ffmpeg.exe" REM Where to get input file, No terminating Backslash, "." = current directory (ie same as dir .bat file) set INDIR="." REM Where to place output file, No terminating Backslash. "." would be same as .bat file set OUTDIR="D:" REM Below, can add extensionas as eg *.WMV (SPACE separated) FOR %%A IN (*.mp4 *.vob *.mpg *.TS) DO ( REM ****** Un-REM ONLY one of below lines *******. %FFMPEG% -i "%INDIR%\%%A" -vcodec copy -acodec copy "%OUTDIR%\%%~nxA.MKV" REM %FFMPEG% -i "%INDIR%\%%A" -vcodec utvideo -acodec copy "%OUTDIR%\%%~nxA.MKV" REM %FFMPEG% -i "%INDIR%\%%A" -vcodec utvideo -acodec pcm_s16le "%OUTDIR%\%%~nxA.AVI" REM *********************************************. ) REM ... Above UN-REM'ed lines : REM (1) Remux, copy both video and audio (output MKV). REM (2) UtVideo lossless video, copy audio (output MKV). REM (3) UtVideo lossless video, PCM audio (output AVI). Pause __________________ I sometimes post sober. StainlessS@MediaFire ::: AND/OR ::: StainlessS@SendSpace "Some infinities are bigger than other infinities", but how many of them are infinitely bigger ??? Last edited by StainlessS; 24th July 2018 at 11:20.
23rd July 2018, 23:12   #16  |  Link
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Quote:
 Originally Posted by StainlessS What, you aint even sure if its mp4 or mkv ? Not really sure that you should be posting in the Avisynth forum if you have not even attempted to figure out how to use Avisynth. Suggest that you look at ffmpegsource or LSMASHSource (I rarely use either and convert all except VOB/MPG to avi, doing anything else usually involves too much messing about trying to figure out the better source filter to use). I do not recommend DirectshowSource.
I have a few files that are mkv and a few that are mp4, I can't remember which one this is. I have a basic knowledge of avisynth, but I don't know a huge amount about it.

 23rd July 2018, 23:54 #17  |  Link StainlessS HeartlessS Usurer     Join Date: Dec 2009 Location: Over the rainbow Posts: 8,426 Suggest LSMASHVideoSource(), and LSMASHAudioSource() if one of these, mov, mp4, m4v, 3gp, 3g2, mj2, dvb, dcf, m21. No idea what is best for mkv. __________________ I sometimes post sober. StainlessS@MediaFire ::: AND/OR ::: StainlessS@SendSpace "Some infinities are bigger than other infinities", but how many of them are infinitely bigger ???
24th July 2018, 00:38   #19  |  Link
lansing
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Quote:
Just use it and you'll see.

So far I see 3 approaches to deal with detected artifact.

1. Do nothing, rely solely on the ability of mvtools. You'll see artifact but get smoothness.

2. Don't change anything. Keep the object as to the original. You'll see smoothness on objects that aren't artifact detected and stutter on objects that are. No artifact.

3. Blend the frames. Since no new interpolated frame has been created, you basically ended up with what the original looks like on playback.

The scripts StainlessS referred are approach 1. The youtube one is 2. Your script as well as framerateconverter is 3.

24th July 2018, 09:57   #20  |  Link
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Quote:
 Originally Posted by lansing Just use it and you'll see. So far I see 3 approaches to deal with detected artifact. 1. Do nothing, rely solely on the ability of mvtools. You'll see artifact but get smoothness. 2. Don't change anything. Keep the object as to the original. You'll see smoothness on objects that aren't artifact detected and stutter on objects that are. No artifact. 3. Blend the frames. Since no new interpolated frame has been created, you basically ended up with what the original looks like on playback. The scripts StainlessS referred are approach 1. The youtube one is 2. Your script as well as framerateconverter is 3.
Which script would I want to use for option 2?

 Tags frame rate, framerateconverter, interpolation, smoothness, svp