Find all needed information about Opencv Audio Support. Below you can see links where you can find everything you want to know about Opencv Audio Support.
OpenCV is a highly optimized library with focus on real-time applications. Cross-Platform C++, Python and Java interfaces support Linux, MacOS, Windows, iOS, and Android.
https://stackoverflow.com/questions/8187745/audio-output-with-video-processing-with-opencv
I think ffmpeg should be used to play audio and SDL for video in this case. After opening the file with OpenCV and processing the frame, you can use OpenCV -> SDL to display it while retrieving the audio frames through ffmpeg and playing them with SDL. Here is a nice collection of ffmpeg/SDL tutorials!
https://answers.opencv.org/question/138076/onvif-support/
The onvif protocol is simply not supported by OpenCV. So if you want that, you will have to programm the capture of the stream yourself using a designed package to do just that, then pass the data to OpenCV.
https://answers.opencv.org/question/180776/build-opencv-with-ffmpeg-support/
I read nearly all of the questions about this subject but I didn't solve it. I am working on Linux/Mint. I installed OpenCV in the virtual environment a lot of times when trying to solve this problem. Problem is that: "cv2.videoCapture() return always false". I built the OpenCV with -D WITH_FFMPEG=ON option and it would finish successfully and the result that about FFmpeg was seemed to be OK.
https://docs.opencv.org/3.4/d0/da7/videoio_overview.html
See also: Video I/O Code Reference; Tutorials: Video Input and Output (videoio module) General Information . The OpenCV Video I/O module is a set of classes and functions to read and write video or images sequence.. Basically, the module provides the cv::VideoCapture and cv::VideoWriter classes as 2-layer interface to many video I/O APIs used as backend.
https://stackoverflow.com/questions/47656211/build-opencv-with-ffmpeg-support
Also, when I run "make -j8" command, it finished with no problem. So I thought everything will be OK. When I tried to check FFmpeg support with this command: python -c "import cv2; print(cv2.getBuildInformation())" grep -i FFmpeg it gave me NO result. I …
https://docs.opencv.org/3.4.8/d7/d9e/tutorial_video_write.html
Due to this OpenCV for video containers supports only the avi extension, its first version. A direct limitation of this is that you cannot save a video file larger than 2 GB. Furthermore you can only create and expand a single video track inside the container. No audio or other track editing support here.
https://askubuntu.com/questions/988137/build-opencv-with-ffmpeg-support
So I thought everything will be OK. When I tried to check FFmpeg support with this command: python -c "import cv2; print(cv2.getBuildInformation())" grep -i FFmpeg it gave me NO result. I installed OpenCV with following these stpes. I also tried to find if FFMPEG supports codec for decoding AVC encoded files.
https://en.wikipedia.org/wiki/OpenCV
OpenCV (Open source computer vision) is a library of programming functions mainly aimed at real-time computer vision. Originally developed by Intel, it was later supported by Willow Garage then Itseez (which was later acquired by Intel).The library is cross-platform and free for use under the open-source BSD license.. OpenCV supports the deep learning frameworks TensorFlow, Torch/PyTorch and ...License: BSD license
https://github.com/opencv/opencv/issues/15088
Jul 18, 2019 · System information (version) OpenCV => 4.1.0-2 from Arch repository Operating System / Platform => Manjaro (fully updated) Detailed description In the Python wrapper, unknown fourcc causes cv2.VideoWriter to segfault. Steps to reproduce ...
Need to find Opencv Audio Support information?
To find needed information please read the text beloow. If you need to know more you can click on the links to visit sites with more detailed data.
