Hi,everyone, I use opencv and gstreamer read a video file and the use the below code cv::VideoWriter writer(“appsrc caps=video/x-raw,format=BGR ! videoconvert ! video/x-raw,format=I420 ! x264enc ! mp4mux ! filesink location=res.mp4”,cv::CAP_GSTREAMER,capture.get(CV_CAP_PROP_FPS), (1280, 720),true)…

Hi, [image] qun: But the image cv::imshow correctly but confused in the video. Probably width and height do not match your appsrc. You may check this.

Save video file named .mp4 with gstreamer and opencv in c++

DaneLLL April 23, 2020, 7:57am 3

Hi,
This should help:

Please take a look.

Save video file named .mp4 with gstreamer and opencv in c++