Questions tagged [framerate]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1 vote
0 answers
24 views

ffprobe reading wrong frame rate, any workarounds besides MediaInfo?

I want to check the frame rate of many videos to double it. I use ffprobe to get r_frame_rate which is evaluated to a decimal, then fed into ffmpeg as rscale -r {2*fps}, or into mkvmerge as 0:{2*fps}...
Minty's user avatar
  • 141
0 votes
0 answers
33 views

Change 50fps video into 25fps and keep the duration without reencoding

I have a 50fps video, where every second frame is a duplicate of the previous frame. I want to upload this video to youtube and I want youtube to think it's a 25fps video. Is this possible? For ...
DD3R's user avatar
  • 75
1 vote
0 answers
101 views

avoid duplicate frames in ffmpeg

I have a video.mp4 which I need to convert losslessly into a sequence of images. I used ffmpeg -i input.mp4 $filename%05d.tiff but I get a lot (thousands) of duplicated frames. What are they? is it ...
terauser's user avatar
0 votes
1 answer
23 views

How to extact multiple specific frames from video which their number is saved in a filename using ffmpeg in linux?

I use the following ffmpeg command to extract multiple frames from a video. ffmpeg -i myvideo.MP4 -vf "select='eq(n\,1315)+eq(n\,1607)'" -vsync drop "filename%03d.png" However, ...
Estatistics's user avatar
0 votes
0 answers
30 views

How to convert gifs to video while keeping framerate

edit: Looks like converting the gifs may not really be changing the frame rate, guess the question is moot. I have a lot of gifs nested in multiple subdirectories and they have different frame rates ...
cudnn_account's user avatar
0 votes
0 answers
65 views

Linux & mpv - How to slow down ONLY 25fps videos to 24fps? I tried the "autospeed.lua" script but it's doing nothing despite other lua scripts working

Much like how reclock worked on Windows, I want to be able to slow down ONLY 25fps videos to 24fps with the corresponding reduction in audio pitch in order to cancel-out any PAL speed-up (PAL speed-...
NM64's user avatar
  • 136
0 votes
0 answers
21 views

How do I debug stuttery/low framerate but low GPU %age usage

I'm a unix geek trying to debug a Windows gaming performance issue, asking for tips on how to figure out the cause effectively as someone who understands general tech concepts but not how to apply ...
nikobelia's user avatar
  • 121
0 votes
1 answer
449 views

Using FFmpeg to make a movie from PNG files: .WEBM with video filter blending error: Output file is empty

Commands: ffmpeg -framerate 0.5 -i %03d.png ffmpeg-framerate0.5.webm and ffmpeg -r 0.5 -i %03d.png ffmpeg-r0.5.webm create a working .webm videos, just as expected. But ffmpeg -framerate 0.5 -i %03d....
Sage's user avatar
  • 1
0 votes
1 answer
166 views

What's the difference between "real frame rate" and "frame rate" in MediaInfo?

What's the difference between "real frame rate" and "frame rate" in MediaInfo? The video was recorded with a Pixel 6 running Android 12 with the Google Camera app configured to ...
Franck Dernoncourt's user avatar
0 votes
0 answers
149 views

Can one see in VLC whether a video has a variable frame rate?

I couldn't see the information in Media->Codec:
Franck Dernoncourt's user avatar
0 votes
0 answers
192 views

Video reported to have a framerate of 15fps, but when played seems like 30. How to tell?

I have a video that I'm processing and transcoding to another format via ffmpeg. I've come across this before where the reported fps in ffprobe seems to be half of what it is when played but don't ...
Jeff Mercado's user avatar
0 votes
0 answers
99 views

ffmpeg on low framerate. First frames

I am trying to convert a .mp3 file to a mp4 file with an image, using a low framerate (-r ) because it's faster. But now the frame of the first second is blank and so the video starts late (after ...
ang_rq's user avatar
  • 1
4 votes
2 answers
4k views

Force ffmpeg to produce constant frame rate

Why does ffmpeg produce variable frame rate output? I have an input file, that when I run it through MediaInfo it tells me it's a constant frame rate video: Video ID ...
dropbear's user avatar
  • 143
0 votes
0 answers
111 views

FFMpeg: Buffer overflow while Slideshow => Variable FPS => Constant FPS

I have a ~1h slideshow in the concat demuxer format (-f concat -i input.txt). There are at most 20 slides. I'd like to produce a constant-framerate H264 MP4. I do: ffmpeg -f concat -i vcd.txt -preset ...
MCCCS's user avatar
  • 227
1 vote
0 answers
2k views

VLC Time v3.2 How can I display Frames instead of ms?

I took a look at Time v3.2 and it is really nice. What I would like to have is a different output of the "Timecode". It should be hh:mm:ss:ff as in the EBU Timecodeformat How can I change ...
syncopator's user avatar
1 vote
0 answers
265 views

Ffmpeg - Changing frame rate without re-encoding (again)

I'm trying to change the frame rate of a MP4 file so it runs at the correct speed. I asked how to do this with FFmpeg without re-encoding here and the answer tgies gave worked. This was on a 25fps ...
MrRAlan's user avatar
  • 31
0 votes
0 answers
437 views

FFMpeg is changing from CFR to VFR on a simple rewrap

I'm exporting an x264 MP4 file from Premiere Pro (using Voukoder), then adding subtitles and converting to MKV. The mp4 output file from Premiere is reported as CFR (by MediaInfo), but after ...
Sean McNally's user avatar
1 vote
1 answer
2k views

Reduce video frame rate from 60 to 30 fps without re-encoding and keeping original duration

I have a video with these specifications: 4320x2160p 60 fps 20.0 Mb/s bitrate AVC format (x264) Since my smartphone can play videos up to 30 fps at that resolution, I need a fast way to reduce the ...
matteof93's user avatar
0 votes
1 answer
1k views

Does PNG/APNG support 60 FPS animations, or are they limited like GIFs? [closed]

A similar question like Do 60 FPS GIF's actually exist? Or is the maximum 50 FPS? but this time for PNG or APNG or any other thing, like WebP. Is it possible to achieve 60 FPS animations with PNG? ...
karl-police's user avatar
1 vote
0 answers
523 views

Extract frames from a video results in abnormaly more frames for each fps by using ffmpeg

I have a job of using ffmpeg to extract the frames averagely from a video, with different fps. I use this command for it. ffmpeg -i input.mp4 -r specified_fps -q:v 2 image %4d.png And I have 3 ...
alanzzz's user avatar
  • 11
0 votes
1 answer
195 views

Change frame rate of png encoded video without changing number of frames?

I have the following video Input #0, avi, from 'input.avi': Duration: 00:00:12.50, start: 0.000000, bitrate: 335548 kb/s Stream #0:0: Video: rawvideo, pal8, 2048x2048, 338250 kb/s, 10 fps, 10 tbr, ...
Rainer's user avatar
  • 207
1 vote
0 answers
265 views

How to deduce and overlay variable framerate of video with duplicate frames using ffmpeg?

I have a lossless video recording of a game without screen tearing. The video itself is at a constant 60fps, but the game framerate varies between 20-30 fps due to performance issues we are debugging. ...
LB--'s user avatar
  • 173
-1 votes
2 answers
376 views

When transcoding DVD contents, should I keep the 29.97 framerate?

I'm using handbrake to transcode (the main stream of) a DVD into a x265+AAC file, using the handbrake application. The source material has a frame rate of 29.97 fps. My question: When transcoding, ...
einpoklum's user avatar
  • 8,437
1 vote
0 answers
282 views

Using ffmpeg to apply mpdecimate and recreating the folder structure with fixed files to another partition

I have 4.390 video files across 638 folders/subfolders. These files have problems with the framerate and I was able to fix using the command ffmpeg -i in.mkv -vf mpdecimate out.mkv How can I use a ...
luiza's user avatar
  • 19
2 votes
1 answer
956 views

Windows stuttering/lagging when dragging, scolling etc

Windows on my laptop lags a lot. The framerate is feels like 3-4 fps. The computer is a Lenovo P1 running latest Windows 10 May 2020 (2004)-version. All drivers are updated. I am using a docking ...
nitech's user avatar
  • 213
0 votes
1 answer
108 views

frame rate and refresh rate while playing a video

As simply I understand it, frame rate is the number of still images that can be displayed on the screen and refresh rate is the number of times the monitor can draw image on the screen. So, ...
juztcode's user avatar
  • 133
7 votes
2 answers
2k views

How can I see Explorer.exe's frames per second?

I want to see how many FPS I'm getting on my desktop. As I understand it, in Windows it's just a program called Explorer.exe. How can I see how many frames per second it is displaying?
user avatar
2 votes
1 answer
937 views

Convert PNG frames to video with missing frames

I have a camera that records at 30 FPS. I have found that the camera drops frames sometimes. What I have are PNG files named _Color_<some_number>.png. For example, _Color_1.png to _Color_10000....
Abraham's user avatar
  • 144
10 votes
3 answers
10k views

How can I tell if a video has a variable frame rate?

How can I tell if a video has a variable frame rate? I don't need to be able to do it programmatically, I just don't want to have to install some program that's hundreds of megabytes; for example, if ...
Nathan Wailes's user avatar
0 votes
1 answer
281 views

How can I record the framerate within a program over time?

I need to measure the framerate of a program over time to see how the computer's hardware affects the program's performance. I know that common screen recording software display the framerate, but I ...
Skipher's user avatar
  • 315
0 votes
1 answer
637 views

Ubuntu 18.04, gdm3, X11 an fixed frame rate

I'm using ubuntu 18.04.02 with 2 displays. The Graphic adapter is connected using DP to an KVM switch, which is connected to an 4K display (called Display 1), which supports only 30hz frame rate. ...
The Bndr's user avatar
  • 133
17 votes
2 answers
19k views

Do 60 FPS GIF's actually exist? Or is the maximum 50 FPS?

I've been recently playing around with FFmpeg and I was trying to convert .avi to .gif since other methods I've tried to so far didn't work so well. What I noticed is that, when I use this command: ...
karl-police's user avatar
0 votes
0 answers
158 views

How do I output a video that is over 600 fps on FFmpeg?

I have two videos that I want to concatenate, one is 29.97 fps and the other is 30.41 fps. I'm trying to make it look perfect by making the frame rate 91138.77 fps, but it can only go up to 600 fps. ...
Etcetera's user avatar
1 vote
0 answers
2k views

How to set a specific refresh rate for a specific application?

I have a game that is locked to 30 fps. I added a mod that unlocks it to the monitor refresh rate and decreases the game speed (which is locked to the refresh rate) by 50%. This way, if my desktop is ...
Andreas Hartmann's user avatar
0 votes
0 answers
139 views

Why does DOSBox run at a slower speed when using my speakers instead of my headphones?

I noticed that whenever I play a game in DOSBox, the game runs very choppy with many dropped frames when I have no audio device plugged in to my laptop's headphone jack. However, when I plug in ...
gparyani's user avatar
  • 1,845
0 votes
0 answers
267 views

Performance issues after installing an SSD

I have a laptop ASUS N550JK with the following specs: Intel core i7-4710HQ @ 2.50 GHz, 8 GB of RAM, NVidia GeForce GTX 850M, HDD storage of 677 GB (strange number, I know). Until last week I was ...
elofante's user avatar
0 votes
1 answer
359 views

Variable framerate lossless video from yuv422 images

I've been pulling my hair lately with FFmpeg commandline. Be aware that I am not an FFmpeg expert. Here is my problem: I have a bunch of YUV422 images as such: image0.yuv image1.yuv .. image450.yuv ...
Robin Beilvert's user avatar
5 votes
5 answers
3k views

How to obviously see every frame per second to check if the monitor is actually updating at expected framerate?

I've been reading up about higher framerate monitors and I've found that a lot of the 60Hz monitors can be slightly overclocked to show 65, 67, 70 or sometimes even 75 frames per second if you play ...
user1306322's user avatar
  • 4,706
0 votes
1 answer
1k views

ffmpeg becomes super slow when using duration instead of -r

What I'm doing: I'm still working on my slideshow script. Meaning, I use ffmpeg's concat demuxer (files.txt) to provide ffmpeg with a bunch of .jpg files for a slideshow. In the past I wanted all ...
Max M.'s user avatar
  • 33
1 vote
0 answers
2k views

Syncing two videos with different framerates using FFmpeg

It should be easy. Actually, it probably is easy. I'm probably just dumb. I have two videos, shot at the same time but with two different cameras. One video is 1920x1080@60, the other is 640x480@29.85....
Brian's user avatar
  • 11
2 votes
0 answers
276 views

I received a large .asf surveillance video file and it's jumpy, as though it's regularly missing a frame. Any hope for salvaging it?

The problem exists when I try to play the original 3.5 gigabyte asf file, and I have converted it to mp4 at least a dozen times, experimenting with various Handbrake settings relating to frame rate (...
Custom Soundtrack's user avatar
0 votes
1 answer
407 views

(Windows 10) Recently PC running all tasks slowly and having bad performance

Heyy forum! So I have this pretty high-end PC I've had since 2015 and only recently it seems to be giving up. Whenever I try to do any tasks that requires some more power, my PC seems to struggle and ...
Preslav Bachvarov's user avatar
1 vote
1 answer
2k views

How to cut video frame specific with ffmpeg and convert framerate?

since a couple of days i encounter a problem with ffmpeg which is actually driving me mad... I try to use FFMPEG's filter_complex in order to extract certain short segments of a videofile (shot at ...
Alexander Pospischil's user avatar
3 votes
2 answers
8k views

ffmpeg Duplicating Frames

A very annoying situation... I have an MPG2 video that is at the framerate of 29.97, yet when converting to MP4 frames are duplicated. That command (straight conversion, no options): ffmpeg -i ~/...
Henry7720's user avatar
1 vote
0 answers
884 views

Setting frame rate of segmented webm in ffmpeg

I'm using ffmpeg to segment files for use in MSE. I've tried dozens of combinations of flags. No matter what I always get a frame rate that can't possibly be right, specifically 1k frames per second. ...
StormyKnight's user avatar
0 votes
1 answer
829 views

How do I use ffmpeg to increase the framerate of a video without affecting audio quality?

I have a ~30k frame video at 25 fps that I'd like to make 50 fps and keep the same running time. This would probably involve duplicating every frame. However, I'd like the audio track to be unchanged. ...
snazzybouche's user avatar
0 votes
1 answer
1k views

Tearing with G-Sync on and V-Sync off in The Witcher 3

My setup has an NVIDIA GTX 1080 (Asus Strix ROG) video card with an Acer XB271HK monitor connected via DP, G-Sync turned on in NVIDIA Control Panel and V-Sync turned off in The Witcher 3 video ...
Manchineel's user avatar
3 votes
0 answers
195 views

VLC Wait for Frame

I have a HD video that I would like to play without it being choppy with a grey frame (eg. when it is not being decoded fast enough) I could manually turn the playback speed down until it works, but ...
rFXfAH9aMq's user avatar
-1 votes
1 answer
3k views

Does Windows 7 Windows Media Player support H.264 mp4 files with variable frame rate?

I think the title says it all. I have a .flv file I am transcoding to h.264 mp4 file. The source uses a variable framerate. Transcoding the file to an .mp4 file with constant framerate generates a ...
Super Rey's user avatar
  • 101
-1 votes
1 answer
96 views

Terrible Frame Rate In Games [closed]

I recently acquired a new graphics card (NIVIDIA GeForce GTX745 4GB) a upgrade from my last (ZOCTAC GTX 950 2GB). I was quite content when i fit it and every thing was working. So i loaded up my game ...
Callum Jones's user avatar