SmoothVideo Project — Using SVP

Update of yt-dlp

null@example.com (fiscus58) — Thu, 05 Mar 2026 12:48:08 +0000

When will the update for yt-dlp to the current version 2026.03.03 finally be released? The version available with SVP 4 Pro is still the penultimate version, 2026.02.04. However, I've been experiencing massive problems with this version for about three weeks now. I can no longer watch 4K HTTP streams with the mpv player because the stream stutters immediately after starting. M3U8 streams are also no longer being offered.

SVP Index only showing N/A

null@example.com (dawkinscm) — Sun, 01 Mar 2026 00:33:26 +0000

SVP Index not showing any metrics. Just N/A. I'm not using RIFE, only SVP settings at 120fps.

Anyone? A definitive guide For what the different AI models do?

null@example.com (darrelleslayton) — Fri, 27 Feb 2026 12:44:07 +0000

I use SVP for transcoding my personal stuff and for downloading YT videos.
I always see 9 different AI models in my copy of SVP, though I know there are more.
I also know they each do frame rate changes in various ways.
The models I use for transcoding... 4.25- 4.26- 4.9 ...what are supposed to be the advantages to each one?
What other models might I consider using?
Are they all useful for video playback in various degrees?

Is there a minimum video length/size/frame count for it to work?

null@example.com (thedragongtx) — Tue, 24 Feb 2026 23:34:08 +0000

Hi, I just downloaded the evaluation copy and followed the instructions to get everything working with MPC-HC (64-bit) and it's working great!
However, I noticed SVP doesn't seem to work on shorter video clips. The shortest video clip I've gotten it to work on is about 16 seconds.
In the lower left corner of the UI, it never changes from 'No active playback' unless I run a longer video.
I know it probably sounds ridiculous wanted that superfluid frame rate on such short clips, but trust me I have my reasons lol

So is there a setting I haven't discovered on my own yet? Or is this a hardcoded limitation? Thanks for any answer!

svptube - pick-up auto-dubbed stream

null@example.com (kapqa) — Wed, 18 Feb 2026 08:29:55 +0000

Hello ,

was wondering if the Svptube with mpv could pickup the auto-dubbed streams from youtube.

when playback such a stream, it seem mpv offers only the original audio track.

thank you very much!

Feature Request: Multiple RIFE Configurations

null@example.com (rk) — Mon, 16 Feb 2026 00:14:39 +0000

Hi!

Would it be possible for SVP to support multiple RIFE configurations?
For instance, one that runs with the 4.18 model for 720p and one that runs with 4.16_lite for 1080p - or any other split

Thanks!

Rife issues after Nvidia driver update

null@example.com (dwoods0381) — Sun, 15 Feb 2026 02:05:24 +0000

I keep getting crashes since I update nvidia driver when using rife models. Using Automatic settings at the moment, but i would like to fix using rife ai models. Anyone else have this problem, or any ideas to fix?

Incorrect source fps on changing file in bundled mpv

null@example.com (TechnoStone) — Sun, 08 Feb 2026 21:35:34 +0000

When playing multiple files, after changing active video file (selecting next in playlist, drag&drop other file, etc) svp thinks source framerate is twice from real, so it can lead to a few issues like:
• selecting incorrect profile if source fps is used as filter
• interpolating to half of target result framerate if using "to screen" target (72 fps on 144 hz etc)
• showing weird result if using fixed multiplier (24 on 4x says 192 fps instead of 96)

Considerations:
1. latest component updates installed
2. using bundled mpv (C:\Program Files (x86)\SVP 4\mpv64\mpv.exe)
3. %appdata%\mpv is empty (no mpv config overrides)
4. used many unrelated video source files (anime from different forums/trackers, movies, streamed content over yt-dlp, all in different resolutions etc) for over a few months and all recent SVP updates with a hope for a fix, but still...

Recording of the issue:
https://technost.one/wp-content/uploads … 4c1e0b.mp4 (forum fails to upload this 20 MB file so uploaded to my server)

In the log this part caught attention so perhaps MediaInfo component has some bug or something. (afaik it's used in MPC-HC, but it shows 23.976 on files in properties):
00:10:45.664 I: Media: assuming 47.952 fps instead of 23.976 fps
00:10:45.664 W: Media: frame rate info can be incorrect - 23.976 fps via video player vs. 47.952 fps via MediaInfo
00:10:45.664 I: Media: scan type is interlaced

yt-dlp download failure (HTTP 403) with SVP 4 internal Tube.

null@example.com (poikj920048) — Tue, 03 Feb 2026 23:28:36 +0000

Hello,

I encountered an issue when trying to play or download a YouTube video using SVP 4’s Tube integration. According to the SVP logs, yt-dlp is initialized correctly and the player connects, but playback ultimately fails because the video data cannot be downloaded.

Below is an excerpt from the SVP log showing the normal initialization and player connection:
Tube: yt_dlp ready
Performance: quick estimation = 965 (previous value was 967)
Screens: updating information, 2 screen(s) found
Screens: screen 1 (Built-in Retina Display) - 3024x1964 @120.000 Hz, x2.0 [255 DPI]
Screens: screen 2 (S22E450) - 1920x1080 @60.000 Hz, x1.0 [102 DPI]
Screens: primary screen is 1
Tube: video format id 247 selected
VideoPlayer: mpv [mpv, native] connected, waiting for the video info...

When executing yt-dlp manually, the download fails with the following message, including a warning about SABR streaming and eventually an HTTP 403 error:

WARNING: Some web client https formats have been skipped...
YouTube is forcing SABR streaming for this client
...
ERROR: unable to download video data: HTTP Error 403: Forbidden

However, after updating yt-dlp to the latest version, the same video downloads correctly without any issue. Therefore, the problem appears to be related to the yt-dlp version bundled or used internally by SVP 4, which seems to be outdated and incompatible with recent YouTube streaming changes.

It would be helpful if SVP could update the bundled yt-dlp version or provide an easier way for users to replace it with a newer version. Please let me know if additional logs or system information are needed.

Thank you.

MadVR & SVP 4 - Dual GPU - 4K @ 48-60 fps (i could use some advice)

null@example.com (Borax Bandito) — Tue, 03 Feb 2026 15:50:57 +0000

I just ordered an RTX 5080 for use in gaming & upscaling movies to my 4K TV. I was going to sell my RTX 3080ti and buy a RTX 4060ti for a dual GPU setup with lossless scaling for gaming (as the 3080ti was overkill) and I'm now wondering if I should keep the 3080ti and use that for SVP 4. Does anyone know if I would see a noticable improvement compared to the 4060ti? or would it also be overkill. I could sell it and buy a 4060ti and profit etc... but i like muh smooth movies.

Secondly, I am curious if anyone uses lossless scaling for interpolation? perhaps it could be combined with SVP? idk...

*I've just learned about Nvidia smooth motion. I'm curious if that would be advantageous to deploy alongside SVP.

Thanks very much

Where can I download OLD SVP4 Software

null@example.com (Clark Chen) — Mon, 02 Feb 2026 18:23:08 +0000

Closed

Lessons learned - RIFE is dead?

null@example.com (dawkinscm) — Mon, 02 Feb 2026 01:15:50 +0000

1. Integer interpolation multipliers seem to work best which might be why 60fps isn't quite as smooth as it could be.
2. Most SVP defaults work best and "overrides" should be used sparingly. Otherwise you end up trying to fix problems that you caused.
3. Consistent frame pacing means less stutters. 1% lows are more consistent with "-copy".
4. Recent mpv versions will fallback to "copy" if needed which might be adding to frame pacing inconsistencies.
5. The most consistent frame-pacing on Windows mpv is with hw d3d11/d3d12.
6. If you have smooth motion with occasional micro-stutters then "Blend Frames" can help smooth them out.
7. With the above, there should be no longer be a need to increase default scene.blocks.limit for the Hugo intro.

I've said all this before, but 99% of the nasty RIFE artifacts are gone. Leaving only the occasional fast motion artifact which can be removed, but at the cost of slow pan smoothness. So unlike with RIFE, there is a choice because there are almost all artifacts can be removed. But the trick is to find the balance between zero artifacts and ultimate smoothness.

Bottom line is that if you have a good GPU and a 120Hz display then RIFE is dead.

Colors change in video when using RIFE?

null@example.com (testowe07) — Sat, 31 Jan 2026 15:38:34 +0000

Hey, I'm using MPC-HC with RIFE/Vulkan and noticed that when watching Seed Of Might Color Corrected release of DBZ and interpolation starts, colors are changing noticeably. With non-RIFE interpolation or no interpolation problem doesn't show up. MPC-HC is set to use MPCVR and D3D11, but there isn't difference with another renderer or even DXVA2. My GPU is AMD RX 6700, drivers version 25.12.1
MediaInfo of video

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L3
Format settings                : CABAC / 4 Ref Frames
Format settings, CABAC         : Yes
Format settings, Reference fra : 4 frames
Codec ID                       : V_MPEG4/ISO/AVC
Duration                       : 24 min 39 s
Bit rate                       : 19.1 Mb/s
Width                          : 708 pixels
Height                         : 480 pixels
Display aspect ratio           : 4:3
Frame rate mode                : Constant
Frame rate                     : 23.976 (24000/1001) FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 2.347
Stream size                    : 3.29 GiB (86%)
Title                          : Dragon Box Merge (Color-Corrected) [TM / JySzE]
Writing library                : x264 core 164 r3172 c1c9931
Encoding settings              : cabac=1 / ref=4 / deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=11 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=6,6 / fast_pskip=0 / chroma_qp_offset=-2 / threads=16 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc=crf / mbtree=0 / crf=10.0 / qcomp=0.80 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.10 / pb_ratio=1.10 / aq=3:0.50
Language                       : Japanese
Default                        : No
Forced                         : No
Color range                    : Limited
Color primaries                : BT.601 NTSC
Transfer characteristics       : BT.601
Matrix coefficients            : BT.601

Understanding SVP Options

null@example.com (rosetisha) — Fri, 30 Jan 2026 14:20:50 +0000

What is "Force the exact value" under FPS change option? Does it do good or bad? It force 120fps if on and 119.88 when of. Which one is better?

Should I use 5x or 120fps for better smoothness?

What is "Width of top coarse level" ?

disable profiles for MKV files with embedded subtitles

null@example.com (mole98) — Thu, 29 Jan 2026 05:14:41 +0000

When watching videos, I sometimes play MKV files with embedded foreign language subtitles.
This doesn't seem to happen with external subtitles in .smi or .srt files, but when I play MKV files with embedded subtitles, the video stutters or becomes blurry.

So, I want to disable the SVP4 setting for MKV files with embedded subtitles. Is there a way to do this?