Searching for Opencv Codec Support information? Find all needed info by using official links provided below.
https://stackoverflow.com/questions/21879029/opencv2-codec-support
Indeed, the supported codec of OpenCV is dependent on your platform and avaible codecs. This tutorial Creating a video with OpenCV explains the video codec of OpenCV clearly. Though it is meant for writing videos, I think the underlying principle is the same with reading videos.
https://answers.opencv.org/question/100967/codecs-list/
On Windows, OpenCV just calls the function that pup up the OS codec form. The CV_FOURCC('M','J','P','G') codec should be supported natively by OpenCV (no need of external library) BTW each codec follows some specs (frame size or ratio, fps, compression ...) thus if your app provides codec selection you have to manage codec specs too.
https://docs.opencv.org/master/javadoc/org/opencv/imgcodecs/Imgcodecs.html
On Linux\*, BSD flavors and other Unix-like open-source operating systems, OpenCV looks for codecs supplied with an OS image. Install the relevant packages (do not forget the development files, for example, "libjpeg-dev", in Debian\* and Ubuntu\*) to get the codec support or turn on the OPENCV_BUILD_3RDPARTY_LIBS flag in CMake.
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://docs.opencv.org/2.4/modules/highgui/doc/reading_and_writing_images_and_video.html?highlight=cvcapturefrom
On Linux*, BSD flavors and other Unix-like open-source operating systems, OpenCV looks for codecs supplied with an OS image. Install the relevant packages (do not forget the development files, for example, “libjpeg-dev”, in Debian* and Ubuntu*) to get the codec support or turn on the OPENCV_BUILD_3RDPARTY_LIBS flag in CMake.
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://docs.opencv.org/3.4/d7/d9e/tutorial_video_write.html
As you can see things can get really complicated with videos. However, OpenCV is mainly a computer vision library, not a video stream, codec and write one. Therefore, the developers tried to keep this part as simple as possible. Due to this OpenCV for video containers supports only the avi extension, its first version. A direct limitation of ...
https://docs.opencv.org/4.1.2/d4/da8/group__imgcodecs.html
On Linux*, BSD flavors and other Unix-like open-source operating systems, OpenCV looks for codecs supplied with an OS image. Install the relevant packages (do not forget the development files, for example, "libjpeg-dev", in Debian* and Ubuntu*) to get the codec support or turn on the OPENCV_BUILD_3RDPARTY_LIBS flag in CMake.
https://docs.opencv.org/4.2.0/d4/d15/group__videoio__flags__base.html
Backends are available only if they have been built with your OpenCV binaries. ... Built-in OpenCV MotionJPEG codec. CAP_INTEL_MFX ... Video input or Channel Number (only for those cameras that support) CAP_PROP_AUTO_WB ...
https://www.pyimagesearch.com/2016/02/22/writing-to-video-with-opencv/
Let me just start this blog post by saying that writing to video with OpenCV can be a huge pain in the ass. My intention with this tutorial is to help you get started writing videos to file with OpenCV 3, provide (and explain) some boilerplate code, and detail how I got video writing to work on my own system. However, if you are trying to write videos to file with OpenCV in your own ...
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