Questions tagged [framerate]

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1answer
27 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, ...
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2answers
1k 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?
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1answer
149 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....
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0answers
22 views

Determine hardware requirements for x265 decoding at high frame rates

I produce 1920x1080-pixel time lapse videos over periods ranging from one month to several years. I can produce the clips in x264 or x265, although I would prefer x265 for lower file size. However, to ...
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1answer
40 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 ...
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0answers
86 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. ...
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2answers
3k 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: ...
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0answers
61 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. ...
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0answers
487 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 ...
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0answers
58 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 ...
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0answers
256 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 ...
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1answer
175 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 ...
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5answers
734 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 ...
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1answer
443 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 ...
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0answers
803 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....
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0answers
131 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 (...
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1answer
330 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 ...
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1answer
878 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 ...
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0answers
517 views

ffmpeg - encode input stream to file with higher framerate

after much research and testing I still cannot achieve the desired output framerate when grabbing an input stream and encoding it to speeded-up output file. My input stream (HTTP, MJPEG from a camera)...
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1answer
4k 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 ~/...
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0answers
521 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. ...
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1answer
718 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. ...
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1answer
932 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 ...
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0answers
166 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 ...
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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 ...
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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 ...
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1answer
923 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 ...
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0answers
192 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....
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1answer
499 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 ...
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1answer
297 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 ...
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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 ...
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1answer
27 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 ...
7
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2answers
11k 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
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1answer
638 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 ...
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2answers
1k 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?
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2answers
24k 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
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1answer
614 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 ...
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2answers
3k 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 ...
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1answer
2k 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 ...
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1answer
6k 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 ...
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2answers
8k 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)?
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2answers
19k 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 ...
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0answers
43 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 ...
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4answers
32k views

Why does my computer lag on Windows 10? [closed]

On Windows 7, my computer runs beautifully at 60fps. When I upgraded to Windows 10, my fps (in games) dropped to like 10 on Low settings. Why is that? It is not a problem with my specs: Zotac GeForce ...
3
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1answer
6k 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
1k views

ffmpeg: How to slow down a video for a while

I want to reduce the speed of a video with FFmpeg for x seconds, after that it should be playing like before. Is there a way to do that in ffmpeg using setpts parameter? I only found this FFmpeg doc ...
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1answer
2k views

What does NIVIDIA's pre-rendered frames mean?

In the NVIDIA Control Panel tweaking my options for the Witcher 3, I found an option called "Max Pre-Rendered Frames". What does that do and will it increase my framerate?
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2answers
21k views

FFMPEG / libx264: How to specify a variable frame rate but with a maximum?

Instead of providing a fixed frame rate to FFMPEG/libx264 (-r/-framerate), I would like to specify a variable frame rate with a MAXIMUM value, and allow libx264 to down the frame rate as it sees fit. ...
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1answer
133 views

Types of low perfomance in videogames

I've experienced two types of bad perfomance in videogames: 1. The basic one, when you have a low frame rate during the game. 2. When the game is fluid in some intervals of time, but it freezes a ...
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2answers
609 views

How to show refresh rate of monitor in MS-DOS Version 6.22

I was forwarded from Stackoverflow to ask this question here. I am running a psych experiment on an old MS-DOS computer. When I ran the experiment on a different computer that is split via a switch ...