Opencv file DOWNLOAD cannot open file for write.

Thanks for that; I'll close the defect and try to learn more about Git. Too many VCS's to learn. How can I synchronize the configuration? Master is broken and this is BAD! Try to download master and you'll reproduce the issue,. Mogikan Nightly regular builds for master branch. I use different sources codebase for open cv and contrib library. But still error: -- Downloading Keep these codebases synchronized with the same version. Skip to content. Star 7k. I don't get any error all the things going well but when I try to play output video file from the directory it will not play.

I also check file size which is about 16KB. I don't know where the problem exist. I'm using: Windows 10 bit Python3.

The frameSize parameter for VideoWriter is width, height , which is somewhat hidden in the docs e. So in your code, it should be. I noticed that your code "learns" the frame size from the input video but not the frame rate, but I assume this is intentional. For example: my IP camera generates frames of size , and in the tutorial i found the code they are trying to write a file with the size , What i did for solving the problem is to take the width and height from the video camera and put them into the videoWriter method.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. No error here at all. I am bound to use VS13 due to a restriction. But okay, I'll have to then build opencv from src using cmake on Windows and retry again, and we shall see. Also, the code which I took from the tutorial was not appropriate, instead this had to be used. So, if you post it as an answer, I can accept it.

You need to download the Github source code of OpenCV from the official website if you want to use VS, since I had to build everything from the source. I used CMake to configure and generate the files. After that I took the steps which I showed above in the screenshots, but what I was missing, and was pointed out by berak , was that I had to also add:.

Active Oldest Votes. Improve this answer. Miguel Rocha Jr. Hope this helps! Matt Matt 81 7 7 bronze badges. Ken Lee Ken Lee 51 2 2 bronze badges. Either the same release or the last commit in BOTH repositories.

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