Questions tagged [frame]

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2answers
20 views

Why is the trunk link tagged on the frames?

Doesn't every frame have a VLAN identifier? So why is it labeled on the trunk link to identify the VLAN? For example, in this image, computer A is in red VLAN and the switch detects this, so why re-...
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0answers
27 views

How to find dropped/duplicated frames in a video file?

I have some videos files where a few frames were missing. I can verify that by playing it in a video player and advance frame-by-frame, or by extracting all frames with ffpeg then check the output ...
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0answers
235 views

ffmpeg include timestamp in filname and screenshot

I'd like to extract a lot of frame-by-frame images from videos and include the specific video-time of the frame extracted a) in the filname egs. extracted-frame_00:30:21:89.png in the format hour:min:...
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1answer
17 views

Framerate dipping ~3 frames every ~1 second

Description of Problem: Frame drops ~3FPS every second, happens in any game, and sort of noticeable on the Windows desktop also when shaking the mouse around really fast. Causes noticeable stuttering, ...
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0answers
341 views

Missing Initial Key Frame Issue in VLC media player causes few second blank screen at the start of the video

I have videos which missing initial keyframe. Thus when I open the video file with VLC player, nothing happens on the screen until the first key frame. Example picture: https://i.stack.imgur.com/nBYrR....
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1answer
165 views

FFmpeg - how apply filters to input frames

I need to convert thousands of bitmap frames (jpeg individual files) into a video, but I also need to adjust the contrast, gamma and brightness of input frames. Those frames have some quality, but the ...
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0answers
90 views

Emacs client - Keep frame until all buffers are closed

I'm using Emacs with the server in daemon mode. When I go to the buffers menu, I can see all the buffers that the server has open. Is there a way to keep the Emacs client frame open until all the ...
2
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1answer
195 views

Insert a black frame between each frame and double the output FPS

So I am looking for a way to add a black frame in between each frame of a current video. What I am trying to do it add a blanking phase to a video to give it a film look. So the pipeline is a 59.94 ...
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1answer
156 views

Is there a way to remove these thin line frame around IrfanView?

They're more noticeable when in maximize windows: .
3
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1answer
586 views

Are 'peak frame rate' and 'variable frame rate' the same thing?

I can find the term 'peak frame rate' in some video editing software. Are 'peak frame rate' and 'variable frame rate' the same thing?
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0answers
272 views

How can I hide/remove/delete windows Caption Buttons like Close Button (X ) and minimize, maximize

I'm trying to get tired of hiding or removing the title bar and buttons for minimizer, maximize and close. I did a lot of research on the internet, but I was unable to find a solution. I can't find ...
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2answers
3k views

Windows 10 windows/dialogs now have no frame at all

This question - Is it possible to turn visible the invisible window's borders of Windows 10? - does not appear to address the same issue. Things appear to have got (even) worse. I just underwent ...
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1answer
319 views

Frameset won't print in Chrome since update

Anybody else having issues printing from sites with Framesets in Chrome since last week's update? e.g https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_frame_cols The print preview is blank (...
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1answer
9k views

FFmpeg : How to get last frame from a video

I have a video.mp4 file i want to get last frame from video/mp4 file and save as a image in local. If it is possible then please suggest me. Thanks.
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0answers
684 views

"For security reasons, framing is not allowed; click OK to remove the frames": A feature, bug, or malware?

friends . . . I've been using Chrome for so long, and just recently receive a popup saying "For security reasons, framing is not allowed; click OK to remove the frames" on a number of sites; it shows ...
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2answers
406 views

Ethernet frames larger than 64k

I have a several PCs in Gigabit Ethernet LAN, all are interconnected with single simple unmanaged L2 switch. No internet access. I want to build some realtime system, in which some PC should send a ~...
5
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2answers
9k views

How to add additional key frames to video using ffmpeg?

I want to add key frames on the base of a specific interval (20 frames) to my video. Therefore I used the following command in ffmpeg: ffmpeg -i <input> -vcodec libx264 -x264-params keyint=20:...
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1answer
1k views

Use ffmpeg for thumbnail selections

This is a follow-up question from HERE. I want to sample k frames out of the n number of frames in a given video using FFMpeg and its thumbnail filter. There is a post here providing some insights how ...
5
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3answers
4k views

ffmpeg extract pictures from several selected time points

I have a videofile and like to extract a single image from (about 1500) specific timepoints.(expl. -ss 00:50, ss 00:67, ss: 01:70 ...) Is there a way to do this? I tried out to use this command: ...
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1answer
415 views

Low count of data frames in wifi monitor mode

I am using scapy to gather stats about wifi traffic for a given MAC. I log the date, type, subtype, and rssi of packets I capture in monitor mode with scapy. And I see a very low count of data frames ...
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0answers
288 views

When do exactly an Access Point (AP) sends a Beacon Frame?

I am trying the make a script in Python with scapy that captures the Packets around in the air. When i put the Wireless Card in Monitor Mode, it is supposed to capture Beacon Frames automatically but ...
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1answer
319 views

How do I remove the original release date tag (TORY in ID3 v2.3) from a mp3 file using eyeD3 and Lubuntu?

How do I remove the original release date tag (TORY in ID3 v2.3) from a mp3 file using eyeD3 and Lubuntu? I have tried eyeD3 --remove-frame TORY file.mp3 without success. I've also tried --remove-...
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1answer
1k views

FFmpeg overlay image on video with fade-effect

Have few doubts wrt following ffmpeg command - ffmpeg -f concat -i input.txt -loop 1 -t 8 -i inputImg.jpg -filter_complex "[1]format=rgba,fade=alpha=1:st=0:d=8,setpts=PTS+10/TB[v1];[0][v1]overlay=x=70:...
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4answers
7k views

What happens to frame when it reaches a switch or router?

As I understand it, when one PC sends a frame to another PC through a switch, the frame remains unchanged. The switch receives it and sends the exact same frame. But what happens if we have two PCs ...
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1answer
60 views

Is a video frame an independent image?

If a video file claims it has 30fps and 10 seconds, can it extract exactly 300 images? Does every type of video file consist collection of images?
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0answers
133 views

Change last 3 frames to still images of 4th frame from end with ffmpeg

I'm trying to make a frame editor with ffmpeg with only one funcation. I want change last 3 frames of input video file to still images from 4th frame from end of file. Can I handle this with only ...
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0answers
102 views

truncate last frame while converting single image + audio track to video in ffmpeg

thanks to the answers to this superuser question Combine one image + one audio file to make one video using FFmpeg i was able to create a video from a single image and an audio track. i used PJ ...
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2answers
3k views

What happens to the router's MAC address once the packet is forwarded into the Web?

What happens with link layer LAN Ethernet header data once the once the frame reaches the main home router and is forwarded to the first network core router? Routers are network layer devices and ...
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1answer
465 views

How to retain GIF frame order in Photoshop when creating an animated GIF?

So I have a GIF that has 70 frames on Photoshop. I put all that into a group (70 images) and it works fine when I press the play button. But when I try to duplicate this folder, the copy doesn't have ...
28
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2answers
44k views

How to extract a frame out of a video using ffmpeg

I have a video and I want to extract 35-th frame out of this video. I want it to be a png image if possible. I know there are a lot of questions like this, but I could not find a solution that was ...
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

Scale video then apply image frame using ffmpeg

I have an image frame 1920x1080 and a video with the same resolution. I want to resize video by 80% of its resolution and center it, and then overlay it with image frame. So the final video result is ...
3
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1answer
6k views

ffmpeg: How does ffmpeg decide which frames to pick when fps value is specified?

I am using ffmpeg to extract 3 frames per second using this command ffmpeg -i input.flv -f image2 -vf fps=fps=3 out%d.png I am wondering if I set the fps value, then how does ffmpeg select 3 frames ...
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1answer
36 views

what is the keys to minimise help frame of emacs

I have a small screen, I typed ? in ediff mode and the control frame enlarges to show me the keybinding. How do I minimise it to its original size after that? Thank you very much!
2
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1answer
365 views

Make Emacs open with three frames by default for OCaml editing

I wish that if I open a .ml (OCaml file), or enter Tuareg mode (a mode for OCaml programming), then the frame should be split like shown in the picture. Left is the main. Top right is secondary. ...
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0answers
33 views

open office formulas grabbing space

On some occasions when an edit is made somewhere in the document that alters the pagination (such as new text that pushes everything down), the formulas will "grab" much, much more space than they ...
1
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1answer
608 views

Why does packet data don't need trailer/footer while frame needs it?

Why does packet don't need trailer/footer while frame needs it? I am trying to understand networking concept regarding ISO & TCP/IP layering. I have googled a bit and it says that the footer in ...
4
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2answers
7k views

Extract video frames display time and frame number

I would like to extract each frame and its display time. The purpose will be to later compare the output between two videos (reference/original video and the transmitted video) and see what frames are ...
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0answers
527 views

Creating a movie from images using ffmpeg but getting only one frame

I read How to create an uncompressed AVI from a series of 1000's of PNG images using FFMPEG (specifically the section "Compressed RGB, But Also Lossless") and used this command: ffmpeg -i *.png -...
16
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2answers
930 views

How do I block my ISP from framing websites? [duplicate]

I've noticed recently, as of today, that all the websites I visit (except for a specific few sites such as Google) are all put into a frame. I'm not sure what the reason for this is, there are no ads ...
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1answer
885 views

Why doesn't Wireshark capture management frames in promiscuous mode?

I am working with Wireshark in promiscuous mode, which is normally used to allow Wireshark to capture all the frames in the connected network. The problem is that Wireshark in this mode doesn't ...
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1answer
1k views

Regarding Ethernet - Why is the InterFrame gap 96 bits long? [closed]

Can someone explain to me why the IFG is 96 bits long? whats the underlying reason for this ? I have given it a search but i couldnt find any good explanations for this. Thanks in advance
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1answer
3k views

Extracting jpeg images from mjpeg stream on terminal

I'm trying to extract jpeg images from an mjpeg stream. I've done a search and found a few sources, but those were extracting jpeg images from a mjpeg file, such as this one here. In my case, I don't ...
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0answers
630 views

way to extract thumbnail with q value is over 5.0 in ffmpeg command?

I edited question(thanks for advice.). When I extract a thumbnail from ffmpeg, I can get a message like this in very end of message. # ffmpeg -ss 600 -i /home/juneyoungoh/Videos/T30644_19_120412.ts....
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1answer
2k views

Relation between a packet and a frame over the network

I am learning how networks work and I have a question. What is actually sent over the network? A packet/datagram or a frame? I believe it is a packet. If so, let's say Computer A wants to communicate ...
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1answer
861 views

Fatal error detected in Eclipse when using Xuggle

I was trying to get frames from a video using Xuggle 5.4. The IDE which I use is Eclipse Juno.The last time (which was roughly one months back) when I tried, I got the frames with a gap of 5 seconds, ...
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4answers
127k views

Getting the video frame number in VLC

I'm running VLC 2.0.5 on Mac OS X 10.6.8. I have a .mpg video paused, and I would like to know the frame number for this moment in the video. Is there a way to reveal that in VLC? P.S. I scrubbed ...
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1answer
199 views

extra 2.5" drive bay for laptop

I'm going to buy a new laptop. It has 2 drive bays: Original HDD and blank. I want to buy an SSD to use in the blank drive bay. There is a frame that cover the HDD to avoid dust inside the laptop. ...
67
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8answers
212k views

How can I launch a browser with no window frame or tabs/address bar

I am looking for a way to launch Chrome, Firefox, or IE9+ (any one will do) from a script or command line without any window frame, address bar, or tabs section. Illustration: For instance, I'd like ...
3
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2answers
19k views

Minimum size of the data part of TCP segment

My question has two parts: I know that the "data" part of an Ethernet frame can be 46~1500 bytes. Considering the IP header of 20 bytes + TCP header of 20 bytes, the minimum "data" size of a TCP ...