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0
votes
1answer
23 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 ...
1
vote
1answer
13 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
votes
2answers
85 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. ...
1
vote
0answers
13 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 ...
0
votes
0answers
10 views

Frame Grabber, ethernet output

I would like to get professional help from network engineers about a product that I am going to use. The product will be connected to a computer by one end with VGA and, the other end will be ...
0
votes
0answers
25 views

Transport Sream for H.264 video

I want to know proper standard for transport streams (For H.264 video),my doubts are If size of PES packet is > 65536 then pes_packet_length filed should be zero ?? If PES packet size more than ...
1
vote
1answer
105 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 ...
1
vote
1answer
784 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 ...
0
votes
0answers
234 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
votes
2answers
509 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 ...
0
votes
1answer
358 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 ...
1
vote
1answer
335 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
0
votes
1answer
509 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 ...
0
votes
0answers
274 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 ...
3
votes
1answer
365 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 ...
1
vote
1answer
262 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, ...
9
votes
2answers
13k views

How to tell video frame number in VLC?

I am running VLC 2.0.5 on Mac OS X 10.6.8. At this moment, 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? ...
0
votes
1answer
159 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. ...
14
votes
4answers
23k 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 ...
1
vote
1answer
670 views

Add iPhone Frame to a Picture [closed]

I want to add an iPhone frame around a picture taken from an iPhone in portrait mode (for presentation purposes). How can I do that? Is there a program that can do it? Or a way to automate such task? ...
1
vote
0answers
142 views

which grabber is good enough to get 1000fps? [closed]

I have two framegrabber with a fast camera (1800+ fps). I would like to know which grabber can grab 1000fps. Below are the features of the 2 grabbers: Inspecta-5 Full Camera Link® Version: Support ...
0
votes
2answers
5k 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 ...
3
votes
3answers
12k views

Extracting “one of every 10 frames” in a video using VLC or FFmpeg

I am trying to extract "exactly 1 frame of every 10" frames of a video (i.e. extract 1 , leave 9 then repeat) for scientific purposes. The video is 105 frames, 3.5 seconds, 29.97fps (h.264, .mov, ...
6
votes
1answer
479 views

Take frame from video with command-line utility in Windows

I want to take a frame of a video at a certain percentage of time (for example, 25%, 50% and 75%) and save it somewhere. I need this to be done from the command-line so I can automate it. Also, this ...
8
votes
3answers
8k views

How to get the URL of the frame in chrome browser

I want to check my URL is correct redirected (parameter etc.) in Chrome. In the address bar only the main URL is listed. In IE all you need is right-click -> Properties. How to obtain the same in ...
1
vote
1answer
627 views

How to get GIF from MKV interval?

I'm looking for a piece of software (free or not) that will allow me to load a .mkv video (and other video types, not just .avi), and tell it to extract frames as images from within a certain ...