Have an AVI videofile, and a webcam. cvQueryFrame returns null in both cases. Code is applied(only for cam): #include "highgui.h" #include <iostream> using namespace std; int main( int argc, char** argv ) { cvNamedWindow( "KillCam", CV_WINDOW_AUTOSIZE ); cvWaitKey(0); CvCapture* capture = cvCreateCameraCapture(-1); ...
I want to develop an application in java to capture video from webcam and store it onto a particular location.Can anyone provide me the working code? What type(usb,ip etc..) of webcam is the best in order to develop the application. Please help me. how to proceed? ...
Hi all, Very soon we are going to work on a project with open source s/w that does many things and one of the modules concerns with capturing live feed from a usb based camera for upto 48 hours and overwriting it in a nonstop loop. This would be going on in parallel with other operations in the application. We also have to display the c...
What video format would be the easiest when saving the output of a camera using V4L2 if I capture it in bitmap format? Getting mpeg directly could be, of course, nice, but I can't unfortunately count on that. I have managed to capture the frames, now I need to somehow view the video. Can I simply convert those frames using some Linux t...
I'm trying to record a webcam's video and audio to a FLV file stored on the users local hard disk. I have a version of this code working which uses NetConnection and NetStream to stream the video over a network to a FMS (Red5) server, but I'd like to be able to store the video locally for low bandwidth/flaky network situations. I'm usi...
Hi What is the best way to capture streamed MJPEG from a network IP camera? I'd like to get frames and process them, using c++ (or python extended with c++). Is OpenCV my best option? Thanks Simon ...
I'm using an IGraphBuilder to render a video capture device to the screen. The process involves adding the capture filter to the graph, then adding a VideoMixingRenderer to the graph (which uses a custom allocator) and finally calling graph.Render() to use Intelligent Connect to wire up the pins. Under some circumstances this works wel...
Hi, thanks for reading. At the moment im making an application to capture video from a webcam, and at the same time click various buttons that write to a text file to make notes on the video. I'v pretty much got everything down now apart from that the WM_CAP_SEQUENCE takes away control of the application by default during capture... so ...
I have a C# application that has some issues that I am finding hard to track down. I believe it MAY be user related but to confirm this I want to have some sort of video screen capture or logging of what is going on inside the application. Does anyone know any resources or information (or pre built - free) solutions I can use? The sma...
Hello, I have a web app built with JQUERY. I'm working to build a Getting Started video. I'm looking for suggestions on: On the mac, what's the best software to record a video? I want to embed the video on a page on my site, but I need to video hosted locally (no youtube or anything external). What's the best player to get this done an...
Hello everyone, I have a Java swing GUI program that renders anywhere between 1 and 25 frames per second. It is only one window and only one panel to which I do all the rendering, e.g. no other Swing components. I need to be able to produce videos of test runs of my program as it runs. The problem is that regular screen casting tools ...
I have a webcam capture app and I'm trying to implement a video preview in my WPF UI. Capturing happens in a C++ DLL. I have a current solution but I'm not too happy with it. The main goal is that the video preview in the UI doesn't interfere with the C++ DLL much, as it has to compress the video frames and write them to disk. I won'...
hello guys, i found some articles, some projects to create thumbnail of a video, using ffmpeg.exe, expression encoder but when i downloaded the projects they are not working... i am not getting that weather ffmpeg.exe downloaded by having problem or the projects are not working. if anybody has other sources from where i can see samples....
Now that Apple is officially allowing UIGetScreenImage() to be used in iPhone apps, I've seen a number of blogs saying that this "opens the floodgates" for video capture on iPhones, including older models. But I've also seen blogs that say the fastest frame rate they can get with UIGetScreenImage() is like 6 FPS. Can anyone share specif...
An example is here: http://www.youtube.com/watch?v=rDu2A3WzQpo ...
Follow up from: http://stackoverflow.com/questions/2289637/windows-mobile-directdraw-display-video-stream-take-picture I managed to preview the camera's video stream, but the image is rotated by 90° to landscape mode. I'm now searching for a way to rotate the camera image back to normal, but the problem is I don't even know where to sta...
Just hoping some kind soul out there can point me to a good freeware solution (Windows) that allows me to record video from a site (the site uses asf streaming)... ...
What's the best way to record a video showing things running on the Android Emulator? I want to record little demo videos of stuff running so I can put it on YouTube. I'm running the emulator on either Windows or a Mac. ...
Hi, Is there public interface in SDK 3.* to start video recording programmatically? Also how can I customize camera button appearance? Thanks, Nava ...
Hi Everyone, I'm trying to use my tvtuner instead of a webcam with opencv. The problem is that by default cvCaptureFromCAM(0) gives me the tv channel of the tv tuner, but what I actually want the input from my the RCA input of the tv tuner. I have tried usingcvCaptureFromCAM(-1) to check if there are additional camera devices found wit...