OpenCV 3.0.0 and FFMPEG building errors
Hello, OpenCV was building fine untill I added FFMPEG libraries. The FFMPEG version I use is 2.8. This is the error i'm getting: Scanning dependencies of target opencv_videoio [ 39%] Building CXX...
View ArticleBuilding OpenCV with CMake 3.3.2 causes ffmpeg error
Hi guys, Iam trying to build OpenCV with CMake. [opencv/master](https://github.com/Itseez/opencv/tree/master) While Downloading opencv_ffmpeg.dll through CMake, it causes an file DOWNLOAD HASH...
View Articleopencv_ffmpeg231d.lib is out of directory
Hi, help please. When I building my project, IDE has a fatal error: 1>LINK : fatal error LNK1104: can not open file "opencv_ffmpeg231d.lib" I can't find this library file in installed...
View ArticleBuilding OpenCV 2.4.11 on Ubuntu 15.04
Hi! I am trying to build OpenCV 2.4.11 on Ubuntu 15.04. I am followin the installation guide and installed the required packages, e.g libavcodec-dev libavformat-dev libswscale-dev, etc. My build is...
View Articleinstalling opencv
Hy, I need OpenCV for a project I'm working on, however so far I've not been able to successfully build it. I've been trying numorous build guides and haven't found any solution yet. The make process...
View ArticleVideoWriter fails to open inside thread
Hello, I writing a C++ application for Windows that handles video streaming over sockets. In this program, the main thread listens for connection attempts, and creates a new thread for each client...
View ArticleHow can I convert ffmpeg AVFrame to cv::Mat?
I'm newbie in ffmpeg.I can get frame with AVFrame,how can I get cv::Mat and do image processing with OpenCV.
View ArticleOpenCV 3 + x264 + FFmpeg
I've seen this post [here](http://answers.opencv.org/question/20436/opencvffmpegx264/), but I think I'm having a different problem with the said combo. Code: cv::VideoWriter...
View Articlecompiling openCV2: how to specify the location of the ffmpeg libraries?
Hi, I am trying to recompile OpenCV2. I have installed FFMPEG in `/usr/local`. I am more familiar with the `./configure` scripts than with `cmake`. Do you know how to specify FFMPEG's prefix with...
View ArticleUnable to open mp4 video file with VideoCapture before and after recompiling...
It all started when I tried to run a program like this: VideoCapture cap; cap.open("GOPR3252.mp4"); if(!cap.isOpened()) { return -1; } I couldn't open the video, even though I tried to manually add the...
View ArticleDoes opencv_ffmpeg300_64.lib exist?
Latest version of OpenCV has DLL for ffmpeg. However, static version doe not have corresponding library? Does it exist? Is there any info on how to create it? Thanks
View ArticleBuilding static OpenCV with ffmpeg is still looking for shared libavcodec
I'm trying to build a static OpenCV python with ffmpeg enabled to run on AWS Lambda. I Need to upload OpenCV my cv2.so in a zip file. To do so I set the **BUILD_SHARED_LIBS=OFF** and...
View ArticleError building OpenCV 3.0.0 with FFMPEG
Hello, This is my first question on this forum. I have been using OpenCV for a while. However I have recently changed my system to a cluster where I do not have any admin permission. The problem is...
View ArticleProblem compiling OpenCV 3.1.0 on Mac OSX Yosemite 10.10.5 with Qt5, ffmpeg...
Hello everyone, Thank you in advance for your time and your help. I already have successfully installed cmake, OpenCV 2.4, Qt5 and cuda on my Mac Book Pro that i could use with no problems. I'm...
View ArticleOpenCV + FFMPEG encoding bitrate
Hi to all. I'm in stuck since 3 days on the following problem. I have a small project in Visual Studio using OpenCV with FFMPEG and I'm encoding a video coming from a capture device. I can encode it...
View ArticleWhere can we find the FFMPEG source for the cv wrapper?
In the OpenCV source ffmpeg folder there are only dll binaries, but these are for opencv versions of a wrapper. Where can we download the source to the cv_ffmpeg, as I'd like to add functionality?
View ArticleExplicitly set ffmpeg to open video
Is there a way to explicitly specify ffmpeg usage to open video with VideoCapture on any platform?
View ArticleBroken ffmpeg settings when writing video
I have an OpenCV (2.4.9) application written in C++, which takes a video as input, processes it, and records the results as video as well. It works for 3 out of 4 videos on mine, but with 1 video it...
View Articleerror: use of undeclared identifier 'avcodec_free_frame'; did you mean...
problem with of the ffmpeg-devel port opencv unable to reinstall in mac OS Version 10.9.5. Any idea? [ 31%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_ffmpeg.cpp.o In...
View ArticleHow to handle ffmpeg (libav/libavcodec) errors in C/C++ code.
Hello, I'm using OpenCV VideoWriter and the write functions in Linux (ubuntu) and also on the Raspberry Pi. For some reasons, I sometimes encounters error of the encoding library. (which I suppose is...
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