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Questions tagged [video-capture]

Questions related to computer oriented video capture and the programming tools and solutions for dealing with captured frames from a video.

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Capture iOS Simulator video for App Preview

Okay, so we can now submit video previews of our apps on the App Store. According to Apple we should do so with an iOS8 device and OSX 10.10. The problem is you have to have all the different devices (4", 4.7", 5.5" and iPad). Is there an…
AXE
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Capture Video of Android's Screen

Forget screenshots, is it posible to capture a video of the running application in android? Rooted or non-rooted, I don't care, I want atleast 15fps. Update: I don't want any external hardware. The intent is to make it perfectly portable and every…
Taranfx
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How to record video from background of application : Android

I am developing an application which will be able to record video from background of application by using Service. Problem description : In my application recording will be scheduled. If user want to record video from 1 PM to 3 PM, he will schedule…
Android Learner
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Creating thumbnail from local video in swift

How to create thumbnail in swift from a local video file ? For example if the video file path is located here…
Ralph
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6 answers

How can I export an Adobe Connect recording as a video?

I have links to recorded conferences, how can I export video from them?
michael nesterenko
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Choosing a video codec for screen recording

I'm doing a series of tutorials by recording the screen and my voice. Just as PNG works best for screenshots, while JPEG is better suited for photographs (although lossy), which video encoding & container formats are better for screen…
Dheeraj Vepakomma
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How to capture a video (AND audio) in python, from a camera (or webcam)

i'm looking for a solution, either in linux or in windows, that allows me to record video (+audio) from my webcam & microphone, simultaneously. save it as a file.AVI (or mpg or whatever) display the video on the screen while recording…
Berry Tsakala
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OpenCV real time streaming video capture is slow. How to drop frames or get synced with real time?

Goal and problem I'd like to set up an opencv system to process either HLS streams or RMTP streams, however, I am running into a strange issue regarding a reduced frame-rate and an accumulating lag. It's as if the video gets further and further…
Conic
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Can use AVCaptureVideoDataOutput and AVCaptureMovieFileOutput at the same time?

I want to record video and grab frames at the same time with my code. I am using AVCaptureVideoDataOutput for grab frames and AVCaptureMovieFileOutput for video recording. But can't work and get the error code -12780 while working at the same time…
Yu-hua Chang
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How to create virtual webcam in Windows 10?

I would like to take video from a webcam, render some text on the frames and do some motion tracking and pass it on to a virtual webcam so it can be streamed easily. I found some answers on stackoverflow suggesting that I should use DirectShow.…
Lukáš Neoproud
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Reading every nth frame from VideoCapture in OpenCV

Is it possible to read frames from a video in steps (eg I want to read every fifth frame of a video stream). Currently I'm doing this as a workaround but it's not very effecient. bool bSuccess int FramesSkipped = 5; for (int a = 0; <…
user3079474
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OpenCv error can't open camera through video capture

I was using my cam through opencv and suddenly after restarting I ran my code it shows below error: [ WARN:0] global /io/opencv/modules/videoio/src/cap_v4l.cpp (802) open VIDEOIO ERROR: V4L: can't open camera by index 0 Traceback (most recent call…
Nabeel Ayub
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How to get the latest frame from capture device (camera) in opencv

I want to connect to a camera, and only capture a frame when an event happens (e.g. keypress). A simplified version of what I'd like to do is this: cap = cv2.VideoCapture(device_id) while True: if event: img = cap.read() …
memo
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Recording video feed from an IP camera over a network

I am building a camera security system for my office however we do not want to keep the DVR on site. We looked at NVR (network video recorders) and they are too expensive. I thought of an alternative to this. I do not know how much feasible it is…
YD8877
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How to get Bytes from CMSampleBufferRef , To Send Over Network

Am Captuing video using AVFoundation frame work .With the help of Apple Documentation http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/03_MediaCapture.html%23//apple_ref/doc/uid/TP40010188-CH5-SW2…
Vasu Ashok
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