Questions tagged [framerate]
The framerate tag has no usage guidance.
85
questions
0
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0answers
3 views
How to averagely extract frames from a video using ffmpeg by specifying “fps”
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 ...
0
votes
1answer
21 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, ...
1
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0answers
21 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. ...
-1
votes
1answer
44 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, ...
0
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0answers
25 views
Halve framerate without complete re-encoding
How can I 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 possible to ...
0
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0answers
661 views
Acer Helios 300 - CPU/GPU performance dropping to 0 during gaming / high intensity usage
Greetings! (tl;dr at the end of post)
I bought my laptop somewhere around March 2020, and the issue first arose somewhere around July and hasn't ceased since.
I started experiencing problems with ...
0
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0answers
20 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 ...
1
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0answers
209 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 ...
2
votes
1answer
565 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 ...
0
votes
1answer
38 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, ...
7
votes
2answers
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?
1
vote
1answer
352 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....
0
votes
1answer
129 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 ...
0
votes
1answer
364 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.
...
15
votes
2answers
9k 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:
...
0
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0answers
92 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. ...
1
vote
0answers
801 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 ...
0
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0answers
96 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 ...
0
votes
0answers
261 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 ...
0
votes
1answer
271 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
...
4
votes
5answers
2k 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 ...
0
votes
1answer
588 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 ...
1
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0answers
1k 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....
2
votes
0answers
168 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 (...
0
votes
1answer
401 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 ...
1
vote
1answer
1k 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 ...
1
vote
1answer
6k 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 ~/...
1
vote
0answers
619 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. ...
0
votes
1answer
733 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. ...
0
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1answer
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 ...
3
votes
0answers
181 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 ...
-1
votes
1answer
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 ...
-1
votes
1answer
95 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 ...
1
vote
1answer
974 views
144hz monitor only displaying 60hz?
So I have an AOC G2460 144hz monitor. I have an Accell DisplayPort cable going from my GPU to the monitor. My settings in the monitor itself, Windows, the NVidia control panel, and the game I'm ...
0
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0answers
214 views
Smooth playback of .mkv files incorrectly rated at 29fps
I noticed for some mkv files, the frame reported in Explorer and VLC is 29, but this is incorrect as it's actually a 24fps source (i.e. Blu-Ray movie), and the file plays with judder in MPC-HC and VLC....
0
votes
1answer
764 views
ffmpeg, making gif or video, how to make the “PLAY” faster, fps=1 dont work
i have this problem, i download a gif, i extract all the jpgs from it, i modified the jpg, then i was trying to recreate the gif using the new jpgs, but i found that whatever i try, no matter if is a ...
0
votes
1answer
351 views
Is Firefox using frame interpolation now?
Until recently I have only seen motion interpolation in Chrome.
However, since 50.1 it seems some YouTube videos are frame interpolated.
Is this a Firefox feature, or is Flash/YouTube doing frame ...
1
vote
1answer
2k views
FFmpeg constant framerate to variable
When recording gameplay with constant 60fps, it records at 60 fps even if the gameplay is ~30 fps or lower.
Is there any way to transcode the 60fps video from constant to variable FPS, so it uses ...
0
votes
1answer
29 views
Why in converted video the voice and video frame doesn't get synchronous even using “source frame rate”?
I want to convert a movie which i captured from satellite with .ts format to .AVI so that i could open it using windows media player easier _with lower CPU usage than using codecs. I use Jetaudio ...
8
votes
2answers
12k views
How to increase video speed and frame rate without duplicating frames
I have a long video with a frame rate of 30 FPS that I want to convert into a 200x time-lapse with a frame rate of 60 FPS. My only problem is that avconv is unnecessarily duplicating every other frame ...
3
votes
1answer
776 views
My video card is rendering 60fps, why does my monitor show less?
My Dell LCD e197fpf 19" 75Hz monitor is not outputting the full framerate it is capable of when put at resolutions above 1024x768.
I expect my monitor to output the framerate given by the GPU up to ...
2
votes
2answers
2k views
Variable framerate with FFmpeg
Let's suppose that I have 5 images with the respective delays between each image:
60ms;
54ms;
70ms;
23ms;
40ms;
How can I tell FFmpeg that information?
19
votes
4answers
31k views
Change framerate in ffmpeg without reencoding
I have a mkv (h264) video that is 23.976 fps (24000/1001) but I want to convert it to 25fps without reencoding and loosing quality.
I know mkvmerge can do it ( with option --default-duration '0:25fps')...
0
votes
1answer
801 views
Frame rate during screen-casting
I am trying to record screen using ffmpeg with the following command:
ffmpeg -f x11grab -s 1366x768 -framerate 30 -i :0.0 -c:v libx264 -b:v 1000k out.mp4
which I learned from here.
But I am not ...
6
votes
2answers
4k views
Reduce video frame rate without dropping useful frames
I have a video from a security camera that was originally recorded at a low frame rate, maybe 15 fps, maybe 10 fps, maybe even less. It has since been converted by someone else to 25 fps (without ...
1
vote
1answer
3k views
Why is FlightGear not using more computing power?
I recently downloaded FlightGear as I felt like playing a flight simulation game. I am using Windows 10 and am running into a framerate problem.
The game does never goes above 25 fps and sometimes ...
7
votes
1answer
7k views
convert high -speed video to normal by subsampling frames
I've found any number of commercial apps that can convert, e.g., 120fps "slow motion" videos to 30 fps by writing every n-th frame to a new video file. I was hoping that the usual freeware tools such ...
1
vote
2answers
49k views
How can I test frame-rate on the PC? [closed]
For any videogame, is there some sort of program for the PC that allows you to measure frame-rate over a period of time (similar to a DigitalFoundry video)?
18
votes
2answers
28k views
Linux: How to extract frames from a video? (lossless)
I've read a few answers and articles on using programs like VLC, MPlayer, ffmpeg, etc., but none of the methods I've seen are "lossless." They don't capture every single frame. I want to extract each ...
0
votes
0answers
44 views
Never reach smooth, constant 60 fps in 3D applications regardless of graphics settings
I have a Radeon R9 290 (though this also happened on my previous card, a 6850) and it seems that only a select few games run at a constant, smooth 60fps. This has no relation to graphics settings as ...
