Questions tagged [framerate]

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8 views

Convert 4k 30fps iPhone footage (.mov) from variable framerate to constant framerate and keep .mov format

When I shoot video at 4k 30fps with an iPhone 11 and an iPhone XR as secondary camera, the resulting files have a variable framerate (VFR). When I try to edit them in iMovie (I will upgrade to Final ...
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1answer
17 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 ...
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2answers
433 views

how can I convert slow motion video into normal speed without losing fps or audio sample rate?

I want to download a slow-motion video playlist (with the frame rate of the videos being either 480 fps or 1000 fps.) and be able to speed up the videos at least 16x without losing the frame rate or ...
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2answers
61 views

Two video sources framerates vary by .01 FPS. Will this cause problems?

I'm just getting started and have some user-level equipment, not professional grade. My Sony Handycam outputs MTS and MP4 at 29.97 FPS. My LG K30 smartphone outputs MP4 at 29.98FPS Using Davinci ...
3
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1answer
25 views

Use of time remapping to stabilize the velocity of a rotating object?

I have a video of myself inside of a human-powered rotating drum. This video's shot at 60 frames per second, but due to to the unreliable velocity of human operators, this drum rotates at different ...
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1answer
40 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 ...
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7answers
14k views

Are there only a few standard video frame rates?

In modern digital video, can a video file be marked with any arbitrary frame rate? Or are only a few specific frame rates widely supported? By "modern" I mean software players like Quicktime, VLC, ...
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1answer
2k 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 ...
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1answer
113 views

Is there a NLE that supports Variable frame rate?

Now before you quickly jump in and say: Premier got an update... Use handbrake... What I'm asking none of the big players seem to support. Rendering a video that's frame rate changes through the ...
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15 views

FFMPEG - MXF to DASH FrameRate

I'm converting a MXF file to DASH using FFMPEG, but having a hard time maintaing the frame rate, if you can see from the below input file has a frame rate of 25, but the mpd file has a frame rate of ...
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1answer
17 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 ...
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1answer
76 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 ...
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1answer
188 views

Dropping Frames when Playing back Sped Up Footage in PP CC 2018

My playback of footage that is sped up 500% is awful in PP CC 2018 on my desktop but fine on my laptop. My CPU utilization is not maxing out on my desktop but I'm still dropping 90% of my frames. I'm ...
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1answer
165 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 ...
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116 views

Want to Blend Frames when Converting from 60fps to 30fps with FFmpeg

I have created some videos of a game I played to upload to YouTube. The game plays at 60fps & the original videos have been recorded at 60fps. However, YouTube re-encodes them down to 30fps using ...
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0answers
10 views

Variable audio drift from screen captured VR project in Unity

I'm new to video editing, and I need to sync up the audio and video from two different sources for a Virtual Reality game. Basically, I have the VR itself running in Unity on one computer, with the ...
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1answer
688 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 ...
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0answers
47 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, ...
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0answers
27 views

Editing issues with variable framerate input footage (Whatsapp videos)

I have to make a video for social media, mixing several short clips which have been sent to me via Whatsapp. I'm using Da Vinci Resolve 16. When taking the videos into the timeline, I get several ...
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0answers
30 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 ...
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264 views

FFMPEG concat with constant frame rate

I'm concatenating 2 video files 00000 and 00001: ffmpeg -y -f concat -safe 0 -i file_list.txt -loglevel error -c copy test.mp4 file_list.txt: file '00000.mp4' file '00001.mp4' 00000.mp4: Duration: ...
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0answers
12 views

How to export 20fps footage

I am trying to export a video stiched together with 20fps footage, my quick solution was just to export at 60fps but that leaves me with huuuuge files. Any workaround? Premiere doesn't seem to let me ...
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0answers
8 views

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 ...
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0answers
19 views

Video and audio frames not in sync

We have a ffmpeg filter based on avf_concat to dynamically insert frames and audio from a second set of input sources based on external..To substitute video and audio in a live generated HLS compliant ...
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0answers
104 views

FFMPEG Output with wrong frame rate

I am using python to combine several video files together using ffmpeg. Each of the videos files are exactly 20 seconds, 30.00fps, mp4 and the exact same resolution. When I concatenate the files, the ...
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0answers
153 views

ffmpeg: variable framerate with min and max

I know that combining -vsync vfr and -r 30 sets a ceiling to the number of frames in the output. But how do you specify a minimum framerate that should always be produced? As part of an encoding ...
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1answer
17 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. ...
2
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1answer
1k 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 ...
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0answers
59 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 ...
3
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1answer
9k views

H264 framerate information?

Does raw H264 data (stripped from an RTP stream) contain information about the framerate? Or is the framerate derived either from RTP timestamps for stream reproduction or written the container files ...
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2answers
31 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, ...
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0answers
20 views

Video plays back at half its frame rate and looks weird in Final Cut Pro

I recorded a multi-cam interview video with 2x Canon camcorders, I set them to record at 50fps. Both of them did, and show that they were shot in 50fps within Final Cut, however, my GoPro recorded at ...
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1answer
144 views

Problem setting different framerates with FFmpeg map option

I am facing a problem to set video streams framerates with FFmpeg when using the map option. Here is what I want to do: Given an input video file of 60 fps, I want to generate an output file ...
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1answer
260 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 ...
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2answers
526 views

Using 60 fps footage on 23.976 sequence without slowing down or dropping frames

I just recorded a 4k 60 fps clip from my GoPro and dropped it with some other clips on a timeline which is 23.976 fps, and the 60 fps clip looks really weird and glittery. Is there a way to play ...
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2answers
19k views

How to get smooth motion when changing clip speed?

Let's say I have a 30 fps video created by a camera panning at a constant speed while filming some static scenery. When I watch the video, the motion in the video is perfectly smooth. When I double ...
4
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1answer
50 views

What is the proper notation for a frame rate that is less than 1FPS?

For example should 1 frame per minute be 1FPM or should it be expressed as FPS using a decimal.
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1answer
263 views

Why both videos are of same file size?

I am using ProMovie Recorder to record high quality videos using iPhone X, and I noticed a weird thing today. Here's what I did: I recorded a 4K 60fps video for 6 seconds (HEVC encoding). I recorded ...
4
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0answers
2k views

Extract the frame (in image format) at exactly every minute (or second) from a video (by ffmpeg)

Motivation: I would like to seek the frame, then take high quality and exact time screenshots (images) from a video. The video is length is 00:48:43.71 and 23.98 fps (we can think it is 24 fps, isn't ...
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1answer
750 views

Why are there missing frames in the Vegas Pro editing timeline?

I found the weirdest thing in Vegas Pro 13. I was trying to verify the exact frames of a generated file, so was looking for a zero number frame to drop it into the timeline. I was surprised to find ...
7
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4answers
8k views

Minimal working frame rate for H264 codec

When making a video from single image files whereas each image file should be visible for about one second, it does make sense to encode a video with an extremely low frame rate such as 1 frame per ...
2
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1answer
1k views

Matroska format's framerate is not accurate with certain values

If the Matroska format is used, in certain framerates it doesn't record at exact input framerate, but rather at a little higher than the input framerate. As an example: ffmpeg -video_size 1920x1080 -...
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0answers
713 views

ffmpeg convert H264 CFR + timestamps to VFR

I have a H264 video source that was recorded with variable framerate (VFR) and a text file with frame ID, timestamp pairs that looks like this: frameId,timestamp 1890413473,13792093 1890413474,...
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3answers
7k views

Recording and playing video with variable frame rate

We are using a streaming camera to record and to play back surveillance video. This camera sends a RTSP stream which will be recorded by our application as a H264 video. In our application, the ...
3
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2answers
3k views

Output is shaky after exporting an edit of several clips in Premiere Pro

I am quite new to video editing, and I am trying to make a clip out of different source footage: sources made from my DSLR are at 24FPS sources from my video camera are at 24.97FPS Other sources (...
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2answers
33 views

Ideal frame rate for video with moving objects

I am working on a drone to capture a soccer game. What should be ideal minimum frame rate for the camera? Does it depend on velocity of objects(ball, players) in the game?
3
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2answers
5k views

What happens to frames when you speed up a video clip?

There is a 60 FPS video clip, with 1 Second total duration (So it has 60 frames, each 1/60s duration) I make it 2× faster. So it's has a 0.5s total duration. How about frames? How many frames are ...
3
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3answers
88 views

In video, can previous frames effect results seen in subsequent shots?

While watch a shot on YouTube at .25 normal speed, I noticed two distinct images of the rocket fired at the ship from (25-26s). Is this an effect of the video, the film, or the result of a video ...
2
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1answer
2k views

FFmpeg encode variable input framerate

I have a Qt application running, i hijack the openGL frameBuffer when a new frame has been rendered. A new frame is drawned when only some changes appear in the scene, so no constant frameRate. Now i ...
2
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2answers
180 views

Flickering when doubling shutter speed

I have a Nikon D750 and cannot figure out the logic behind video (or still photos in live view) and flickering. I live in Norway, so the electricity is 50 Hz. If I shoot video at 1/50 or 1/100 second ...