Stutter Issue (Every 3rd and 4th frame is identical)

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shacho
Posts: 5
Joined: Mon Oct 28, 2019 1:27 pm

Stutter Issue (Every 3rd and 4th frame is identical)

Post by shacho » Mon Oct 28, 2019 1:43 pm

Description of problem or question:
I am trying to convert an AVI media file to a clean format for editing in Final Cut.
When I convert using "Constant Frame Rate" at 30fps (or any fps setting) I get stutter.
Specifically, if I advance the output file in VLC or Quick time one frame at a time,
I see that every 3rd and 4th frame are the same, which causes a jerky appearance on playback.
Here are some facts:
- MediaInfo says the encoding is MJPG at 30fps (details below)
- If I use "Peak Framerate" playback is smooth, but then FCP causes jerky conversion
- I get the same results for all combinations of codec (h264 and h265), framerate, and detelecine
Does anyone have a theory for the cause and remedy to try?

MediaInfo report on the source file:

Code: Select all

General
Complete name                            : /Volumes/PACK/VIDEO/MOVI0006.avi
Format                                   : AVI
Format/Info                              : Audio Video Interleave
File size                                : 185 MiB
Duration                                 : 1mn 17s
Overall bit rate                         : 20.0 Mbps
Video
ID                                       : 0
Format                                   : JPEG
Codec ID                                 : MJPG
Duration                                 : 1mn 17s
Bit rate                                 : 19.5 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 30.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.314
Stream size                              : 180 MiB (97%)
Audio
ID                                       : 1
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : 1
Duration                                 : 1mn 17s
Bit rate mode                            : Constant
Bit rate                                 : 512 Kbps
Channel(s)                               : 1 channel
Sampling rate                            : 32.0 KHz
Bit depth                                : 16 bits
Stream size                              : 4.70 MiB (3%)
Alignment                                : Aligned on interleaves
Interleave, duration                     : 1006 ms (30.17 video frames)
HandBrake version:
1.2.2

Operating system and version:
Mac OS Mojave 10.14.6

HandBrake Activity Log:

Code: Select all

HandBrake Activity Log for Session: 2019-10-28T13:10:06Z
Handbrake Version: 1.2.2 (2019022300)
264-30-cf.mp4
Preset: Production Standard (Modified)
[22:10:06] macgui: QueueCore prevented sleep
[22:10:06] macgui: QueueCore scanning specifically for title: 1
[22:10:06] CPU: Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz
[22:10:06]  - Intel microarchitecture Kaby Lake
[22:10:06]  - logical processor count: 12
[22:10:06] hb_scan: path=/Volumes/PACK/VIDEO/MOVI0006.avi, title_index=1
udfread ERROR: ECMA 167 Volume Recognition failed
disc.c:323: failed opening UDF image /Volumes/PACK/VIDEO/MOVI0006.avi
disc.c:424: error opening file BDMV/index.bdmv
disc.c:424: error opening file BDMV/BACKUP/index.bdmv
[22:10:06] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 6.0.0
libdvdread: Encrypted DVD support unavailable.
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[22:10:06] dvd: not a dvd - trying as a stream/file instead
Input #0, avi, from '/Volumes/PACK/VIDEO/MOVI0006.avi':
  Duration: 00:01:17.43, start: 0.000000, bitrate: 20034 kb/s
    Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080, 19515 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, 1 channels, s16, 512 kb/s
[22:10:06] scan: decoding previews for title 1
[22:10:06] scan: audio 0x1: pcm_s16le, rate=32000Hz, bitrate=512000 Unknown (pcm_s16le) (1.0 ch)
[22:10:07] scan: 10 previews, 1920x1080, 30.000 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[22:10:07] libhb: scan thread found 1 valid title(s)
[22:10:07] macgui: QueueCore scan done
[22:10:07] 1 job(s) to process
[22:10:07] starting job
[22:10:07] work: only 1 chapter, disabling chapter markers
[22:10:07] job configuration:
[22:10:07]  * source
[22:10:07]    + /Volumes/PACK/VIDEO/MOVI0006.avi
[22:10:07]    + title 1, chapter(s) 1 to 1
[22:10:07]    + container: avi
[22:10:07]    + data rate: 20034 kbps
[22:10:07]  * destination
[22:10:07]    + /Users/Mike/Desktop/test/264-30-cf.mp4
[22:10:07]    + container: MPEG-4 (libavformat)
[22:10:07]  * video track
[22:10:07]    + decoder: mjpeg
[22:10:07]      + bitrate 19515 kbps
[22:10:07]    + filters
[22:10:07]      + Detelecine (pullup) (skip-left=1:skip-right=1:skip-top=4:skip-bottom=4:plane=0)
[22:10:07]      + Framerate Shaper (mode=1:rate=27000000/900000)
[22:10:07]        + frame rate: 30.000 fps -> constant 30.000 fps
[22:10:07]      + Crop and Scale (width=1920:height=1080:crop-top=0:crop-bottom=0:crop-left=0:crop-right=0)
[22:10:07]        + source: 1920 * 1080, crop (0/0/0/0): 1920 * 1080, scale: 1920 * 1080
[22:10:07]    + Output geometry
[22:10:07]      + storage dimensions: 1920 x 1080
[22:10:07]      + pixel aspect ratio: 1 : 1
[22:10:07]      + display dimensions: 1920 x 1080
[22:10:07]    + encoder: H.264 (libx264)
[22:10:07]      + preset:  fast
[22:10:07]      + profile: auto
[22:10:07]      + level:   auto
[22:10:07]      + quality: 10.00 (RF)
[22:10:07]      + color profile: 1-1-6
[22:10:07]  * audio track 1
[22:10:07]    + decoder: Unknown (pcm_s16le) (1.0 ch) (track 1, id 0x1)
[22:10:07]      + bitrate: 512 kbps, samplerate: 32000 Hz
[22:10:07]    + mixdown: Mono
[22:10:07]    + dither: triangular
[22:10:07]    + encoder: AAC (Apple AudioToolbox)
[22:10:07]      + bitrate: 96 kbps, samplerate: 32000 Hz
[22:10:07] macgui: QueueCore started encoding 264-30-cf.mp4
[22:10:07] macgui: QueueCore with preset Production Standard (Modified)
[22:10:07] sync: expecting 2322 video frames
[22:10:07] encx264: min-keyint: 30, keyint: 300
[22:10:07] encx264: encoding at constant RF 10.000000
[22:10:07] encx264: unparsed options: ref=2:weightp=1:subme=6:rc-lookahead=30
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x264 [info]: profile High, level 4.0, 4:2:0, 8-bit
[22:10:07] sync: first pts video is 0
[22:10:07] sync: "Chapter 1" (1) at frame 1 time 0
[22:10:07] sync: first pts audio 0x1 is 0
[22:10:50] reader: done. 1 scr changes
[22:10:53] work: average encoding speed for job is 33.869503 fps
[22:10:53] vfr: 2323 frames output, 1 dropped and 814 duped for CFR/PFR
[22:10:53] vfr: lost time: 9000 (0 frames)
[22:10:53] vfr: gained time: 9000 (4 frames) (0 not accounted for)
[22:10:53] pcm_s16le-decoder done: 2464 frames, 0 decoder errors
[22:10:53] mjpeg-decoder done: 1511 frames, 0 decoder errors
[22:10:53] sync: got 1511 frames, 2322 expected
[22:10:53] sync: framerate min 15.000 fps, max 30.000 fps, avg 19.514 fps
x264 [info]: frame I:9     Avg QP: 7.17  size:259011
x264 [info]: frame P:630   Avg QP:10.12  size:164565
x264 [info]: frame B:1684  Avg QP:13.42  size: 68590
x264 [info]: consecutive B-frames:  1.2%  5.8%  1.9% 91.1%
x264 [info]: mb I  I16..4: 17.9% 68.4% 13.8%
x264 [info]: mb P  I16..4:  6.4% 30.3%  4.6%  P16..4: 24.4% 19.2% 13.3%  0.0%  0.0%    skip: 1.8%
x264 [info]: mb B  I16..4:  1.1%  4.9%  1.4%  B16..8:  8.1% 14.8% 15.7%  direct: 8.9%  skip:45.0%  L0:51.2% L1:35.7% BI:13.1%
x264 [info]: 8x8 transform intra:71.1% inter:76.1%
x264 [info]: coded y,uvDC,uvAC intra: 61.5% 73.4% 40.2% inter: 29.7% 52.6% 30.5%
x264 [info]: i16 v,h,dc,p: 57% 31%  9%  3%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 31% 22%  2%  2%  2%  2%  2%  2%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 33% 11%  3%  4%  4%  4%  3%  4%
x264 [info]: i8c dc,h,v,p: 34% 29% 33%  4%
x264 [info]: Weighted P-Frames: Y:4.9% UV:4.9%
x264 [info]: ref P L0: 57.8% 42.2%
x264 [info]: ref B L0: 63.2% 36.8%
x264 [info]: ref B L1: 90.7%  9.3%
x264 [info]: kb/s:22885.55
[22:10:53] mux: track 0, 2323 frames, 221512720 bytes, 22875.67 kbps, fifo 256
[22:10:53] mux: track 1, 2409 frames, 949540 bytes, 98.06 kbps, fifo 512
[22:10:53] libhb: work result = 0
Last edited by Rodeo on Mon Oct 28, 2019 3:58 pm, edited 1 time in total.
Reason: Logs in between [code][/code] blocks please

User avatar
JohnAStebbins
HandBrake Team
Posts: 5469
Joined: Sat Feb 09, 2008 7:21 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by JohnAStebbins » Mon Oct 28, 2019 3:21 pm

Is the source telecined? I see you have the detelecine filter enabled. When the input is telecined, the output of the detlecine filter will be 24fps.

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Rodeo
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Posts: 12250
Joined: Tue Mar 03, 2009 8:55 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by Rodeo » Mon Oct 28, 2019 3:59 pm

shacho wrote:
Mon Oct 28, 2019 1:43 pm

Code: Select all

[22:10:53] sync: framerate min 15.000 fps, max 30.000 fps, avg 19.514 fps
Input seems variable framerate. This might be caused by the detelecine filter, or might just be a characteristic of the source.

mduell
Veteran User
Posts: 6721
Joined: Sat Apr 21, 2007 8:54 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by mduell » Mon Oct 28, 2019 4:43 pm

shacho wrote:
Mon Oct 28, 2019 1:43 pm

Code: Select all

[22:10:07]        + frame rate: 30.000 fps -> constant 30.000 fps

[22:10:53] vfr: 2323 frames output, 1 dropped and 814 duped for CFR/PFR

[22:10:53] sync: got 1511 frames, 2322 expected
[22:10:53] sync: framerate min 15.000 fps, max 30.000 fps, avg 19.514 fps
Your source is not constant framerate after the filters you chose to apply, you asked HB for constant framerate output, and so the appropriate frame adds and drops were performed to make constant framerate output.

shacho
Posts: 5
Joined: Mon Oct 28, 2019 1:27 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by shacho » Mon Oct 28, 2019 6:22 pm

mduell - Thanks for spotting that in the log. I had a feeling the source might actually variable framerate given the success of the vfr encode test. OK - that helps a lot. Is there any reliable way to turn this into 30fps constant while minimizing stutter using handbrake. I see Final Cut has some blending options, but somehow it seems there should be some way to do a better job, such as just deleting duplicate frames. Do you know of any?

Thanks!

mduell
Veteran User
Posts: 6721
Joined: Sat Apr 21, 2007 8:54 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by mduell » Mon Oct 28, 2019 10:35 pm

Try decomb instead of detelecine, and post your log from that attempt.

shacho
Posts: 5
Joined: Mon Oct 28, 2019 1:27 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by shacho » Tue Oct 29, 2019 12:34 pm

Same result, and here is the log.
However, I would not expect decomb to help as it is not an interlaced signal.

Code: Select all

HandBrake Activity Log for Session: 2019-10-29T12:28:38Z
Handbrake Version: 1.2.2 (2019022300)
7.mp4
Preset: Production Standard (Modified)
[21:28:38] macgui: QueueCore prevented sleep
[21:28:38] macgui: QueueCore scanning specifically for title: 1
[21:28:38] CPU: Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz
[21:28:38]  - Intel microarchitecture Kaby Lake
[21:28:38]  - logical processor count: 12
[21:28:38] hb_scan: path=/Users/Mike/Desktop/VIDEO/untitled folder/7.avi, title_index=1
udfread ERROR: ECMA 167 Volume Recognition failed
disc.c:323: failed opening UDF image /Users/Mike/Desktop/VIDEO/untitled folder/7.avi
disc.c:424: error opening file BDMV/index.bdmv
disc.c:424: error opening file BDMV/BACKUP/index.bdmv
[21:28:38] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 6.0.0
libdvdread: Encrypted DVD support unavailable.
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[21:28:38] dvd: not a dvd - trying as a stream/file instead
Input #0, avi, from '/Users/Mike/Desktop/VIDEO/untitled folder/7.avi':
  Duration: 00:01:17.43, start: 0.000000, bitrate: 20034 kb/s
    Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080, 19515 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, 1 channels, s16, 512 kb/s
[21:28:38] scan: decoding previews for title 1
[21:28:39] scan: audio 0x1: pcm_s16le, rate=32000Hz, bitrate=512000 Unknown (pcm_s16le) (1.0 ch)
[21:28:39] scan: 10 previews, 1920x1080, 30.000 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[21:28:39] libhb: scan thread found 1 valid title(s)
[21:28:39] macgui: QueueCore scan done
[21:28:39] 1 job(s) to process
[21:28:39] starting job
[21:28:39] yadif thread started for segment 0
[21:28:39] yadif thread started for segment 1
[21:28:39] yadif thread started for segment 2
[21:28:39] yadif thread started for segment 3
[21:28:39] yadif thread started for segment 4
[21:28:39] yadif thread started for segment 5
[21:28:39] yadif thread started for segment 6
[21:28:39] yadif thread started for segment 7
[21:28:39] yadif thread started for segment 8
[21:28:39] yadif thread started for segment 9
[21:28:39] yadif thread started for segment 10
[21:28:39] yadif thread started for segment 11
[21:28:39] work: only 1 chapter, disabling chapter markers
[21:28:39] job configuration:
[21:28:39]  * source
[21:28:39]    + /Users/Mike/Desktop/VIDEO/untitled folder/7.avi
[21:28:39]    + title 1, chapter(s) 1 to 1
[21:28:39]    + container: avi
[21:28:39]    + data rate: 20034 kbps
[21:28:39]  * destination
[21:28:39]    + /Users/Mike/Desktop/7.mp4
[21:28:39]    + container: MPEG-4 (libavformat)
[21:28:39]  * video track
[21:28:39]    + decoder: mjpeg
[21:28:39]      + bitrate 19515 kbps
[21:28:39]    + filters
[21:28:39]      + Decomb (mode=7)
[21:28:39]      + Framerate Shaper (mode=1:rate=27000000/900000)
[21:28:39]        + frame rate: 30.000 fps -> constant 30.000 fps
[21:28:39]      + Crop and Scale (width=1920:height=1080:crop-top=0:crop-bottom=0:crop-left=0:crop-right=0)
[21:28:39]        + source: 1920 * 1080, crop (0/0/0/0): 1920 * 1080, scale: 1920 * 1080
[21:28:39]    + Output geometry
[21:28:39]      + storage dimensions: 1920 x 1080
[21:28:39]      + pixel aspect ratio: 1 : 1
[21:28:39]      + display dimensions: 1920 x 1080
[21:28:39]    + encoder: H.264 (libx264)
[21:28:39]      + preset:  fast
[21:28:39]      + options: keyint=12:min-keyint=1:ref=1:bframes=0:qcomp=0.8:aq-strength=0.5:dct-decimate=0:fast-pskip=0:deblock=-2,-2
[21:28:39]      + profile: high
[21:28:39]      + level:   auto
[21:28:39]      + quality: 10.00 (RF)
[21:28:39]      + color profile: 1-1-6
[21:28:39]  * audio track 1
[21:28:39]    + decoder: Unknown (pcm_s16le) (1.0 ch) (track 1, id 0x1)
[21:28:39]      + bitrate: 512 kbps, samplerate: 32000 Hz
[21:28:39]    + mixdown: Mono
[21:28:39]    + dither: triangular
[21:28:39]    + encoder: AAC (Apple AudioToolbox)
[21:28:39]      + bitrate: 96 kbps, samplerate: 32000 Hz
[21:28:39] macgui: QueueCore started encoding 7.mp4
[21:28:39] macgui: QueueCore with preset Production Standard (Modified)
[21:28:39] sync: expecting 2322 video frames
[21:28:39] encx264: min-keyint: 1, keyint: 12
[21:28:39] encx264: encoding at constant RF 10.000000
[21:28:39] encx264: unparsed options: keyint=12:keyint-min=1:ref=1:bframes=0:qcomp=0.8:aq-strength=0.5:dct-decimate=0:fast-pskip=0:deblock=-2,-2:weightp=1:subme=6:rc-lookahead=30
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x264 [info]: profile High, level 4.0, 4:2:0, 8-bit
[21:28:39] sync: first pts video is 0
[21:28:39] sync: "Chapter 1" (1) at frame 1 time 0
[21:28:39] sync: first pts audio 0x1 is 0
[21:29:38] reader: done. 1 scr changes
[21:29:40] work: average encoding speed for job is 25.060520 fps
[21:29:40] decomb: deinterlaced 1511 | blended 0 | unfiltered 0 | total 1511
[21:29:40] vfr: 2323 frames output, 0 dropped and 812 duped for CFR/PFR
[21:29:40] vfr: lost time: 0 (0 frames)
[21:29:40] vfr: gained time: 0 (0 frames) (0 not accounted for)
[21:29:40] pcm_s16le-decoder done: 2464 frames, 0 decoder errors
[21:29:40] mjpeg-decoder done: 1511 frames, 0 decoder errors
[21:29:40] sync: got 1511 frames, 2322 expected
[21:29:40] sync: framerate min 15.000 fps, max 30.000 fps, avg 19.514 fps
x264 [info]: frame I:200   Avg QP: 7.83  size:385219
x264 [info]: frame P:2123  Avg QP:10.72  size:173349
x264 [info]: mb I  I16..4: 10.1% 55.1% 34.8%
x264 [info]: mb P  I16..4:  3.7% 24.5%  6.3%  P16..4: 27.5% 11.4%  8.5%  0.0%  0.0%    skip:18.1%
x264 [info]: 8x8 transform intra:67.7% inter:57.0%
x264 [info]: coded y,uvDC,uvAC intra: 75.6% 83.0% 75.4% inter: 41.4% 56.7% 53.1%
x264 [info]: i16 v,h,dc,p: 55% 25% 12%  8%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 31% 17%  3%  3%  3%  4%  3%  4%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 31%  8%  4%  5%  4%  6%  3%  5%
x264 [info]: i8c dc,h,v,p: 33% 30% 32%  6%
x264 [info]: Weighted P-Frames: Y:1.4% UV:1.2%
x264 [info]: kb/s:45981.57
[21:29:40] mux: track 0, 2323 frames, 445054541 bytes, 45960.88 kbps, fifo 128
[21:29:40] mux: track 1, 2409 frames, 949540 bytes, 98.06 kbps, fifo 256
[21:29:40] libhb: work result = 0



User avatar
JohnAStebbins
HandBrake Team
Posts: 5469
Joined: Sat Feb 09, 2008 7:21 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by JohnAStebbins » Tue Oct 29, 2019 3:27 pm

Typically you should use decomb with the interlace detection filter. Then the decomb filter will only be applied to frames that are found to be interlaced. If you had used the interlaced detection filter, the log would have information about how many frames were interlaced which would have given us another datapoint to extrapolate from. As it is I'm not sure if your source is truly variable frame rate, or telecine, or some weird combination of things.

Have you tried encoding it and just leaving HandBrake set to variable framerate output? Is the motion smooth in this case?

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Rodeo
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Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by Rodeo » Tue Oct 29, 2019 5:03 pm

Given your source averages just under 20 frames per second, if you must convert it to constant framerate with HandBrake for use in another editor, then you should probably use Constant Framerate at 20 fps, not 30. Otherwise you'll have to find other software with more advanced frame rate conversion possibilities (HandBrake is fairly good at reducing frame rate, but for increasing we're still doing basic frame duplication).

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JohnAStebbins
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Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by JohnAStebbins » Tue Oct 29, 2019 5:55 pm

Rodeo wrote:
Tue Oct 29, 2019 5:03 pm
Given your source averages just under 20 frames per second, if you must convert it to constant framerate with HandBrake for use in another editor, then you should probably use Constant Framerate at 20 fps, not 30. Otherwise you'll have to find other software with more advanced frame rate conversion possibilities (HandBrake is fairly good at reducing frame rate, but for increasing we're still doing basic frame duplication).
I was actually thinking he might need to move in the other direction. If it stutters at 30fps, that means the frame boundaries of the output are not landing close enough to the original frame boundaries. If the source is truly variable framerate, it may be difficult to pick a constant framerate that will be close enough, but increasing the framerate as high as possible will reduce the differences between original and output frame boundaries.

shacho
Posts: 5
Joined: Mon Oct 28, 2019 1:27 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by shacho » Tue Oct 29, 2019 6:06 pm

Hi Rodeo - yes, that makes sense. I've had decent-ish luck with Optical Flow blending in Final Cut Pro, so I guess I'll go with that for this one. Thanks (all) for your input.

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Rodeo
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Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by Rodeo » Tue Oct 29, 2019 6:17 pm

John's suggestion may be worth a try as well.

shacho
Posts: 5
Joined: Mon Oct 28, 2019 1:27 pm

Re: Stutter Issue (Every 3rd and 4th frame is identical)

Post by shacho » Tue Oct 29, 2019 8:12 pm

Hi gents. Actually I had the same hypothesis when I started down this path and tried a few configurations using 60fps for the output, but alas it didn't improve the result.

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