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c++ - Audio output with video processing with opencv ...
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! I also found a nice post that shows how to capture frames …
Does OpenCV capture/write audio to video?? - OpenCV Q&A Forum
https://answers.opencv.org/question/101451/does-opencv-capturewrite-audio-to-video/
Hi, I was trying to capture frames from one video and write them to a new video file using VideoCapture and VideoWriter, I could get AVI and MP4 videos after trying different FOURCC such as "XVID", "FMP4", "MP4V" (For MP4) and "IYUV" (AVI). The problem is that the video I get has no audio, just video, so is OpenCV just for image related operations (No audio involved)?
OpenCV: cv::VideoWriter Class Reference
https://docs.opencv.org/3.4/dd/d9e/classcv_1_1VideoWriter.html
filename: Name of the output video file. fourcc: 4-character code of codec used to compress the frames. For example, VideoWriter::fourcc('P','I','M','1') is a MPEG-1 codec, VideoWriter::fourcc('M','J','P','G') is a motion-jpeg codec etc. List of codes can be obtained at Video Codecs by FOURCC page. FFMPEG backend with MP4 container natively uses other values as …
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cv2.VideoWriter | LearnOpenCV
https://learnopencv.com/tag/cv2-videowriter/
OpenCV OpenCV Beginners OpenCV Tutorials. June 5, 2017 By 61 Comments. In this post, we will learn how to Read, Write and Display a video using OpenCV. Code in C++ and Python is shared for study and practice. Before we do …
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