Questions tagged [framerate]

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Kdenlive project stuck on 25 fps

I have a Kdenlive project that was started with 25 FPS and now I want to switch it to 30 FPS, but no matter what I do, it stays on 25 FPS and produces 25 FPS output files during rendering. The title ...
Gerald Schneider's user avatar
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11 views

Galaxy A03s Not Recording at 30 FPS Constant - Mouth Movement and Audio Out of Sync

I have an unlocked Samsung Galaxy A03s [1]. Per the Samsung website, it's supposed to be specked at FHD (1920 x 1080)@30fps. Unfortunately, I almost never get it to actually record at 30fps constant. ...
Shawn Eary's user avatar
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10 views

Restoring High Frame Rate Video After Forced Slow Motion Conversion

I'm dealing with a tricky situation involving high frame rate video recording and need some guidance. For an experiment, I needed to record a video at a high frame rate. The only way to achieve this ...
Miles Jarra Gloekler's user avatar
1 vote
1 answer
319 views

How to encode scenes with different CRF into a H.264 MP4 video with a variable frame rate?

Source Material Having many scenes which essentially are still frames (for many seconds) Commonly found in: Slideshows, Screen Recording or Software Mockup/Prototype ✅ This kind of source material ...
porg's user avatar
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Using video to prove an alarm is flashing

I'm in a bit of an annoying problem. I know nothing about video, so sorry if I'm using wrong terminology. I live in an apartment buliding in downtown Tel Aviv. On the ground floor of my building there'...
Ram Rachum's user avatar
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0 answers
188 views

ffmpeg: How to decimate frame rate without recompressing, for I-Frame only video, like ProRes?

I use a capture device from Atomos to capture video in ProRes format over HDMI. The issue is, this device will only capture video in the exact same frame rate as the HDMI signal's refresh rate. So a ...
morphinapg's user avatar
1 vote
1 answer
32 views

2 video files, one has the audio with 15FPS, the other has the video with 5FPS, audio is out of sync

I'm trying to sync the audio and video of 2 different files, one is a 15 FPS webcam stream with audio and the other is a screen share with 5 FPS. This is an educational setting. I'm trying to do the ...
user5688333's user avatar
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1 answer
554 views

frame rate vs extracted frames

Newbie here. This is my input.mp4 video, according to VLC: codec: H265 – MPEG-4 AVC (part 10) (avc1) Encoder: Lavf58.29.100 FPS: 70.476432 Resolution: 1824 x 1216 Duration: 0m31s I need to ...
terauser's user avatar
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0 answers
56 views

Recovering 18fps super-8 from NTSC 59.94i: Duplicate frame removal?

I have a VHS tape made from 1970s-era super-8 home video footage (the originals for which are lost), and am trying to make what improvements I can. I used a Blackmagic UltraStudio to perform raw frame ...
Charles Duffy's user avatar
1 vote
1 answer
197 views

ffmpeg: Changes to FPS only work if I don't include audio in the export, how can I keep audio and choose the FPS value?

How can I export a video to .mjpeg at my selected FPS value (7 FPS for stop motion video) while including audio in the export? I use the -i input command in ffmpeg to include my .ogg audio file: ...
John Doe's user avatar
1 vote
1 answer
33 views

Do mobile phones really record in these odd framerates?

I received several video files for editing that were recorded on a mobile phone. (Samsung S21, if it matters.) When I brought the files into VEGAS (still using version 15.0 Platinum), it reports some ...
Theodore's user avatar
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1 answer
427 views

How can I convert a 30FPS video to 50FPS video without affecting the length of the video?

How can I interplote a 30FPS video to a 50 FPS video without affecting the length of the video? I have used the VSDC video editor to do so. I have set the reframing mode to optical flow. However, I ...
The KNVB's user avatar
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129 views

Any reliable benchmark for frame interpolation?

I want to use frame interpolation to convert videos from 30 FPS to 60 FPS. I found many programs for that: Davinci Resolve, Flowframes, SmoothVideo Project, Topaz Video Enhance AI (Chronos model), etc....
Franck Dernoncourt's user avatar
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1 answer
191 views

h264/hevc: non-integer frame rates

I'm having a hard time understanding how non-integer frame rates are implemented in h264 and hevc. For example, I just stepped through a 23.976fps video frame by frame using Shotcut, and looking at ...
ACz's user avatar
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1 answer
728 views

Difference Between 50i and 25p Video Formats

I have a Sony Alpha A5000 camera, and it has quite limited video recording options. In AVCHD format, there are basically two options: 50i and 25p. I do know the basic difference between these two scan ...
jte's user avatar
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Sony a6400 Slog2 and minimum shutter speed?

I'm starting with my sony a6400 to get into videomaking (or at least trying to). I'm shooting a short movie in Slog2 30fps 1080p, but I noticed that I can't set my shutterspeed to be the double of my ...
FabioEnne's user avatar
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558 views

Can I fix choppy video shot at wrong shutter speed?

I shot some video at 60fps with the intention of putting it in a 24fps timeline slowed down. (59.97 and 23.976 actually) Usually I shoot at a shutter speed of 1/125 for shots like this. I shot some at ...
Kerdos Media's user avatar
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1 answer
209 views

Is it possible to use high framerate to achieve better stabilization outcomes in DaVinci Resolve?

DaVinci controls regarding stabilization are very limited, and there seems to be no documentation on how to achieve the following. Given moderately shaky 100fps footage, one wants to produce a 30fps ...
Anton Strogonoff's user avatar
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97 views

FFMPEG: Why can't I work in frames instead of HH:MM:SS?

I have a video-only stream that I removed the audio from without re-encoding. The video information is as follows. hevc (Main 10), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x1608 Frame ...
user69136's user avatar
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0 answers
580 views

Confused about methods to speed up video

I have some CCTV recordings that I would like to speed up (like a timelapse) and I am confused about which method to use. I tested Avidemux and VSDC Video Editor and they both speed up videos in ...
nnamerz's user avatar
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0 answers
1k views

MP4 file has incorrect length (duration) and plays back 5x slower than it should

I have five GoToMeeting (GTM) .mp4 recordings that I saved and downloaded from a five-day class I was teaching. Each recording represents each day's appx. 8 hour class duration. I am importing them ...
KurtM's user avatar
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2 votes
1 answer
105 views

What frame rate is the iOS camera aiming for when it shoots 24fps VFR?

Almost every time we deal with footage that was shot on an iOS device in a post production workflow, we find it's Variable Frame Rate (aka VFR) rather than Constant Frame Rate (CFR). The hardware ...
electron.rotoscope's user avatar
1 vote
1 answer
2k views

Converting Video from 30 fps to 29.97fps so Audio Syncs to Other 29.97fps Videos with ffmpeg

I have three videos that I am trying to sync so I can setup a multi-camera editing project (I'm using Vegas Pro) Two are at 29.97fps and one is at 30fps. If I manually sync them all at the start, by ...
Simon's user avatar
  • 113
1 vote
1 answer
444 views

What is the meaning behind video and audio framerates being different?

I am doing some transcoding via ffmpeg and am noticing video and audio FPS differing greatly. During playback there is no issue, everything is working as expected. So I am trying to understand what it ...
Duxa's user avatar
  • 113
1 vote
1 answer
76 views

is it possible to discard duplicate frames in a video?

I have a 2 minute game capture that ranges from 60fps to 2fps but the capture is in 30fps. is there any way to discard the duplicate frames so that the video looks smooth? I was thinking of extracting ...
watolob667's user avatar
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1 answer
39 views

Why don't I see flickering in artificial light despite using the wrong framerate?

I've read on several sources that when using artificial light, in Europe (50Hz mains frequency) you are supposed to record on 25/50fps or you can induce flickering. Makes sense in theory and all, but ...
MaxD's user avatar
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1 vote
1 answer
133 views

Framerate dilemma

I'm having a hard time deciding what framerate I should use. I live in the PAL region (50Hz), and when I use 25 fps, I can use any shutter speed and never have light flickering. This is convienent ...
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29 views

Displaying High Framerate Content on a Low Framerate Display

What are the best practices for scaling down framerate of a static video. For example, consider some footage captured at 360 FPS from a videogame. How would one scale this down for a 60 Hz display or ...
cyberixae's user avatar
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0 answers
230 views

Why do we still have difference between Media Time and SMPTE Time Code?

I'm implementing a web application which works with video sources with SMPTE time codes printed on it. Often the SMPTE and media time differs, my understanding of the reason based on what I have read ...
dfranca's user avatar
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1 answer
378 views

A framerate of 30.30 has become common the past couple years. What is it about the number 30.30 that is significant? Why not an even 30, for example?

I typically resample the framerate to 30 when I'm encoding (much of my source video was streamed and has unreliable native framerate). But these 30.30 videos I tend to leave at 30.30 just because I ...
felwithe's user avatar
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1 answer
210 views

Are there any Windows video players that don't stutter when looping?

Title. I have spent the past few hours trying to smoothly loop a short 6-second animation I made in Blender. No matter what I use (VLC, Windows Movies and TV, heck I even tried installing MPlayer), ...
Memoirs's user avatar
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2 answers
2k views

Why do we still shoot 23.976 if NTSC and PAL have been replaced?

I watched this video and had loads of questions. If NTSC ran into problems with colour and therefore slowed down 30 to 29.976, and 24 to 23.976, why didn't PAL have the same problems and slow down 25 ...
user avatar
0 votes
1 answer
128 views

how do I create 23 fps proxies for footage shot in 30 fps and interpreted as 23 fps

I am trying to create 23 fps proxies for footage shot in 30 fps and interpreted as 23 fps I watched and carefully followed the Youtube video that explains exactly this and I am still getting out of ...
Emile Papillon-Corbeil's user avatar
1 vote
2 answers
651 views

Halve framerate without complete re-encoding

Is there any tool that can manipulate / transcode h264 or h265 video streams throwing away approximately half of the frames, without performing a full re-encode? I'm thinking it would be theoretically ...
Tobia's user avatar
  • 111
2 votes
0 answers
204 views

ticker text does not run really smooth

I want to create a ticker text video like the news ticker you see sometimes in TV. So I use ffmpeg -loop 1 -i Transparent_800x20.png -vf drawtext="fontsize=16:fontcolor=black:fontfile=...
sigbert's user avatar
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0 votes
1 answer
81 views

h264 Settings for Motion Tracking & Analysis (technical photography)?

I'm trying to do "scientific" video motion analysis. Right now I'm using a Raspberry Pi camera, which records natively in h264, which then needs to be converted/wrapped as MP4. Is h264 an ...
float13's user avatar
1 vote
1 answer
2k views

Editing a Mac Screen Recording in Premiere Pro causes image fragmentation

I'm making some tutorials about how to use a website. I'm using the built in Apple Screen Recording to record the screen on a Macbook Pro with a retina screen. I'm then loading the resulting .mov file ...
Stephen Graham's user avatar
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0 answers
939 views

Changing FPS from 29.97 to 30 in ffpmeg creates short blank at end of video, audio is fine

I am trying to merge 5 parts of a continuous video using ffmpeg. For some reason, the 1st part is encoded at 29.97 FPS, while all the others are at 30 FPS. part #1 : 29.97 fps, 29.97 tbr, 19200 tbn, ...
mach128x's user avatar
  • 101
1 vote
0 answers
228 views

If my footage is 15fps, why does Premiere try to create a 29.97 fps sequence when I create a sequence from it?

I'm editing some footage from Eecamm's Skype recorder. The footage appears to be 15fps 1280x720. In Premiere CC 2019, when I drop it onto the New Sequence icon, the sequence automatically generated ...
tomh's user avatar
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1 vote
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What is the best monitor refresh rate (in Hz) to remove flickering when filming at 24 frames per second with a 1/50 shutter speed?

I tried setting the monitor to 50 Hz and 100 Hz, but I still see flickering. Everything looked fine when the monitor was set to 60 Hz and the shutter speed to 1/25. That being said, I am trying to ...
sunknudsen's user avatar
1 vote
1 answer
102 views

syncing slideshow with music

So im currently creating a music oriented slideshow with a bundle of images that needs to be changed each beat of the music. Problem is, the music is 129 bpm which results in 2.15 beats per second. ...
3MP The Rook's user avatar
1 vote
1 answer
2k views

How to change Timeline's output time from "Frames" to "Timecode" (Premiere Pro)

I was editing a video for a friend when I accidentally changed my Timeline's timestamps from "Timecode" to Frames" It has been really frustrating to figure out what second of footage I am on when ...
NaturalistUbuntu's user avatar
1 vote
0 answers
149 views

Screen-Video with 7 FPS (in Davinci Resolve - or other tools?)

I currently edit/cut a lot of computer screen recording footage. The original mp4 files have 7 FPS and I am totally happy with that quality. If I now edit the files in Davinci Resolve 16, the lowest ...
Christopher's user avatar
1 vote
2 answers
632 views

How to stop horizontal scrolling lines caused by fluorescent light (USA and NTSC)?

I'm trying to record something for a school project and my lighting is underneath fluorescent lighting. My camera is set to 30 fps but records at 29.97 fps (seen on pc). I've tried to copy the clip, ...
user avatar
0 votes
1 answer
572 views

Adobe After Effects - Why is my position marker not set to a frame?

In after effects, one of my compesitions is comprised soley of static images, vectors, solids, and other non-movie footage. One such static image layer lasts from frame 0 for 100 frames. Another user ...
Force Gaia's user avatar
2 votes
1 answer
6k views

Sony Vegas - render allowing source to adjust frame rate?

I have a bunch of mobile phone videos (different phones), that I want to render to one single video using sony vegas. Should I check allow source to adjust frame rate when rendering? Or should I ...
membersound's user avatar
1 vote
3 answers
13k views

Show current frame or display timecode (frames) on MPC-HC?

Does anybody know if this is possible? I know how to encode timecode display using ffmpeg but I would like to avoid this step and find a way in MPC (currently my favorite video player). CTRL+J doesn't ...
RobertPlantJr's user avatar
1 vote
1 answer
3k views

Variable bitrate for AAC - how to reach it?

I tried encoding audio stream into AAC with a variable bitrate mode — I followed the advice from FFmpeg VBR Settings and changed my original option -b:a 128k to -q:a 1.3 in this original command ...
MarianD's user avatar
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0 votes
1 answer
36 views

Vegas Pro 13 : Project's and Timeline's framerate are suddenly not the same

So here's the thing : I'm editing on Vegas Pro 13, 25fps according to my origninal files. I just imported some sound I "mixed" externally. And now, my timeline acts in 24fps although my project is ...
Nydzia R's user avatar
0 votes
1 answer
2k views

FFmpeg convert to HD video format that Adobe Premiere Pro will not crash on?

My problem is somewhat similar to others asked on the site in recent years, but none of those solutions were quite right for my problem: I have a series of frames from a video recorded at roughly 30 ...
JerryPlayz101's user avatar