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Questions tagged [capture]

capture is the process of converting a set of pixels on a screen into a bitmap image stored in memory

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ffmpeg output blank image files on CentOS 6.4

0I am trying to capture thumbnail images from a video by using ffmpeg. So I typed command like Below. ffmpeg -i MyVideo.mp4 -s 480x270 -f image2 -vf fps=fps=1/600 thumb%03d.png just like what ffmpeg official site suggested. The length of…
Juneyoung Oh
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Simple way to capture screenshot in windows os? c++

What is the most simple way to capture a screenshot and save it somewhere using c++?
Omid H
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Using ALSA, how to record with a microphone what it is just playing out through a speaker?

I am trying to record what it is just playing out to the speaker using following ALSA APIs: snd_pcm_mmap_writei() snd_pcm_mmap_readi() Both functions are called one to next in the same thread. The writei() function returns quickly (I believe it…
Tianhua Chu
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Capture stills from avi on Windows

I need to capture stills from avi files. I also need to know avi file duration. The Platform is Windows, the language is C++ (with Qt library). I don't know much about DirectShow or Qt Phonon and I have no time to learn any of them. So I'm looking…
Sergey Skoblikov
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LoadRunner Correlation : capturing dynamic array value from server respponse

i am trying to do correlation to capture dynamic array value from server response. The problem is that the server is returning the list that i want to capture in javascript function and I am not able to capture it. this is…
Pulkit
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Capture radio button status in wpFinished (non custom) in inno setup

I am using Inno Setup V5 something the latest I could download. I have a pretty solid install script developed. I have set alwaysreboot to true but I need to display a messagebox to the user if he selects to reboot later. How do I capture the…
Scott Beckstead
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Web page Capture and save to image using phantomjs lib

i was searching google to get any js lib which can capture the image of any website or url. i came to know that phantomjs library can do it. here i got a small code which capture and convert the github home page to png image if anyone familiar with…
Mou
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How garb all gets and posts (during HttpWebRequests & HttpWebResponses) in a simple windows application

How can i garb all gets and posts (during HttpWebRequests & HttpWebResponses) in a simple windows application using with c#? as you know there is a specific extension for firefox named LiveHTTPHeaders. i want something like that but not for a…
SilverLight
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Capture a literal in css

I have several NAV Bars. Each NAV Bar is of the pattern; a | a such that where the literal "|" occurs, it's always has a sibling a on the left. where a is an html anchor element and "|" is a literal separator of interest. What css can I use to…
Pita.O
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Segmentation Fault - 32 / 64 Bit issue?

I am currently working on a small project which captures packets and triggers an external application or script when a specific limit exceeds to handle following steps (which could be for example alerting, null routing etc). I tried to create a…
jay
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ASP.NET Screen capture

I am developing ASP.NET apps (using latest 4.0). I always wondering if there is a way to capture the screen of the users and save it to a folder for error logging purposes? Can I install a Win-form on each users machine and execute it when ASP.NET…
user2141599
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DirectX.Capture FrameRates

I'm using DirectX.Capture library to save to an AVI fomr Webcam. I need video to be saved to have 50fps or more, but when i use this: capture.FrameRate = 59.994; FrameRate doesn't change at all. It had 30 before that line and passing that line it…
user2139221
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Capture the output of a process in multi-threaded c++

My requirements are simple: start a process, wait for it to finish, then capture and process it's output. For the longest time I've been using the following: struct line : public std∷string { friend std∷istream& operator>> (std∷istream &is, line…
Akobold
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iPhone: whether it is possible to make video programmatically

i want to create a video programmatically using iPhone camera. i can take a picture programmatically . but about video i am not sure. so please suggest whether it is possible or not ? if yes, then please guide me or provide me some useful link
Rupesh
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Qt lib to capture user's sound card output

Is there any library in Qt to capture the audio output of the user's sound card ? I'd like to find a portable way to do it (windows + mac). If not, how could I achieve this for Windows ?
Christophe
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